CN102323520A - Double-spectrum helmet display - Google Patents
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- CN102323520A CN102323520A CN201110137429A CN201110137429A CN102323520A CN 102323520 A CN102323520 A CN 102323520A CN 201110137429 A CN201110137429 A CN 201110137429A CN 201110137429 A CN201110137429 A CN 201110137429A CN 102323520 A CN102323520 A CN 102323520A
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Abstract
The embodiment of the invention discloses a double-spectrum helmet display applied to corona detection, which comprises an ultraviolet light path and a visible light path, wherein the ultraviolet light path comprises an ultraviolet object lens, an ultraviolet image intensifier, an ultraviolet optical filter and a first eyepiece, wherein the ultraviolet image intensifier is connected with the ultraviolet object lens; the ultraviolet optical filter is arranged between the ultraviolet object lens and the ultraviolet image intensifier; the object plane of the first eyepiece is connected with the output surface of the ultraviolet image intensifier; the visible light path comprises an object lens, a second glimmer image intensifier and a second eyepiece; the object lens is used for picking up a visible light image of an outside scene; the second glimmer image intensifier is connected with the object lens; and the object plane of the second eyepiece is connected with the output surface of the second glimmer image intensifier. The double-spectrum helmet display can be used for finding the corona phenomenon at night in time and can be worn when a power system is maintained so as to greatly avoid the loss of the power system; and the helmet display has the advantages of high detection efficiency, convenience in carrying, high accuracy and fewer influences from an outside environment.
Description
Technical field
The present invention relates to Helmet Mounted Display manufacturing technology field, more particularly, relate to a kind of two spectrum Helmet Mounted Displays that corona detects that are used for.
Background technology
In recent years; China's economy continues the high speed stable development, and the electric system scale also constantly enlarges, along with the enforcement of China's transferring electricity from the west to the east plan; The transmission voltage grade progressively improves; The transmission line of electricity of 500kV and electric substation settle in all parts of the country in succession, and the widespread use of ehv power transmission system safeguards that it is safe, operation more seems particularly important reliably.Corona discharge not only can seriously influence the person and device security; But also can cause a large amount of electric energy losses; Therefore detect the position and the power of corona discharge timely and accurately; So that the corona discharge position is overhauled, the reliability service that guarantees electric system, the damage that prevents power equipment and minimizing personal injury all there is important meaning.
The generation of corona is because rough conductor produces uneven electric field, around uneven electric field, near the little electrode of radius-of-curvature, when voltage is elevated to certain value, because free of air will discharge, forms corona.Because the peripheral electric field of corona very a little less than, it is free not bump, the peripheral charged particle of corona basically all is an electron ion, these ions have just formed corona discharge current.Briefly, the little conductor electrode of radius-of-curvature has just produced corona to atmospherical discharges.
Corona discharge in the electric system makes a large amount of losses of electric energy, and the electromagnetic pulse of its generation can be disturbed radio and high-frequency communication, makes power equipment produce edge effect, destroys insulator, and then causes conductive line surfaces to be corroded, and descended to the serviceable life of lead.Therefore, have only the position of finding corona discharge as early as possible, could reduce loss, avoid accident the trouble unit on-call maintenance.
When night power transmission and transformation line being patrolled and examined, mainly adopt infrared telescope, infrared camera or ultraviolet camera etc. in the prior art; But, little, the weak strength of the target of corona discharge, visualization is difficulty relatively; Though can adopt ultraviolet camera also can detect the corona activity under the faint situation of solar radiation at night; But this detection process operation is difficulty relatively, and efficient is low, and expensive; And; Because what infrared equipment detected is the heating phenomenon; When adopting infrared equipment to detect corona phenomenon, power circuit or equipment are because corona and well damage adopts said method to be difficult in and detects corona night timely; And then can not in time safeguard carrying out electric system, cause the loss that is difficult to avoid.
Based on above reason, need a kind of being convenient to badly and under the more weak situation of light at night, in time detect the equipment of corona.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of pair of spectrum Helmet Mounted Display, be applied to the detection of the corona at night; This equipment can normally be looked under the situation of thing at night; Find corona phenomenon timely, detection efficiency is high, and this Helmet Mounted Display is easy to carry, accuracy rate is high, receive the influence of external environment little; In to the maintenance process of electric system, also can wear simultaneously, avoid the loss of electric system greatly.
For realizing above-mentioned purpose, the embodiment of the invention provides following technical scheme:
A kind of pair of spectrum Helmet Mounted Display is applied to corona and detects, and comprises ultraviolet light path and visible light light path, and wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First eyepiece, the object plane of said first eyepiece links to each other with the output face of said ultraviolet imaging enhancer, and human eye is seen the virtual image of said corona through said first eyepiece, and the virtual image of said corona and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second eyepiece, the object plane of said second eyepiece links to each other with the output face of said second gleam image intensifier, and human eye is seen the virtual image of said extraneous scenery through said second eyepiece, and the virtual image of said extraneous scenery and said extraneous scenery are positioned at same position.
Preferably, said ultraviolet imaging enhancer comprises:
With the ultraviolet detector that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet detector;
First gleam image intensifier, the input face of said first gleam image intensifier links to each other with the output face of said ultraviolet detector.
Preferably, the object distance of said ultraviolet object lens is the 0.3m-infinite distance, and/or the image distance of said first eyepiece is the 0.3m-infinite distance; The object distance of said object lens is the 0.3m-infinite distance, and/or the image distance of said second eyepiece is the 0.3m-infinite distance.
Preferably, also comprise:
First optical fiber image inverter between the input face of the output face of said ultraviolet imaging enhancer and said first eyepiece; And
Second optical fiber image inverter between the input face of the output face of said second gleam image intensifier and said second eyepiece.
Preferably, the virtual image of the said corona seen through said first eyepiece of human eye is specially and the big upright virtual image such as said corona; And/or said human eye sees that through said second eyepiece virtual image of said extraneous scenery is specially and the big upright virtual image such as said extraneous scenery.
The embodiment of the invention also discloses a kind of pair of spectrum Helmet Mounted Display, be applied to corona and detect, comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First optical fiber image transmission beam and first eyepiece, the input face end of said first optical fiber image transmission beam links to each other with the output face of said ultraviolet imaging enhancer, and its output face end links to each other with said first eyepiece, as the object plane of said first eyepiece;
First spectroscope or first catoptron that link to each other with said first eyepiece; The optical axis of said first spectroscope or first catoptron and said first eyepiece has angle; Light after said first spectroscope or first mirror reflects gets into human eye, and the virtual image of the corona that human eye is seen and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second optical fiber image transmission beam and second eyepiece, the input face end of said second optical fiber image transmission beam links to each other with the output face of said second gleam image intensifier, and its output face end links to each other with said second eyepiece, as the object plane of said second eyepiece;
Second spectroscope or second catoptron that link to each other with said second eyepiece; The optical axis of said second spectroscope or second catoptron and said second eyepiece has angle; Light after said second spectroscope or second mirror reflects gets into human eye, and the virtual image of the said extraneous scenery that human eye is seen and said extraneous scenery are positioned at same position.
Preferably, the optical axis of said first spectroscope or first catoptron and said first eyepiece is 30 ° of-60 ° of angles, and/or the optical axis of said second spectroscope or second catoptron and said second eyepiece is 30 ° of-60 ° of angles.
Preferably, said first spectroscopical reflectivity is greater than transmissivity, and/or said second spectroscopical reflectivity is greater than transmissivity.
The embodiment of the invention also discloses a kind of pair of spectrum Helmet Mounted Display, be applied to corona and detect, comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First eyepiece, the object plane of said first eyepiece links to each other with the output face of said ultraviolet imaging enhancer, and human eye is seen the virtual image of said corona through said first eyepiece, and the virtual image of said corona and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second optical fiber image transmission beam and second eyepiece, the input face end of said second optical fiber image transmission beam links to each other with the output face of said second gleam image intensifier, and its output face end links to each other with said second eyepiece, as the object plane of said second eyepiece;
Second spectroscope or second catoptron that link to each other with said second eyepiece; The optical axis of said second spectroscope or second catoptron and said second eyepiece has angle; Light after said second spectroscope or second mirror reflects gets into human eye, and the virtual image of the said extraneous scenery that human eye is seen and said extraneous scenery are positioned at same position.
The embodiment of the invention also discloses a kind of pair of spectrum Helmet Mounted Display, be applied to corona and detect, comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First optical fiber image transmission beam and first eyepiece, the input face end of said first optical fiber image transmission beam links to each other with the output face of said ultraviolet imaging enhancer, and its output face end links to each other with said first eyepiece, as the object plane of said first eyepiece;
First spectroscope or first catoptron that link to each other with said first eyepiece; The optical axis of said first spectroscope or first catoptron and said first eyepiece has angle; Light after said first spectroscope or first mirror reflects gets into human eye, and the virtual image of the corona that human eye is seen and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second eyepiece, the object plane of said second eyepiece links to each other with the output face of said second gleam image intensifier, and human eye is seen the virtual image of said extraneous scenery through said second eyepiece, and the virtual image of said extraneous scenery and said extraneous scenery are positioned at same position.
Compared with prior art, technique scheme has the following advantages:
The technical scheme that the embodiment of the invention provided; Helmet Mounted Display is applied to the testing process of corona; This Helmet Mounted Display adopts the two-way light path; The light signal of ultraviolet object lens in ultraviolet light path picked-up corona filters out the light signal of other wave band except that ultraviolet band through ultraviolet filter, adopts ultraviolet imaging enhancer that the light signal of the corona that absorbs is carried out the spectrum conversion afterwards and strengthens; Be converted into the stronger visible light signal of light intensity, make the virtual image that to observe corona with the pairing human eye of ultraviolet light path through first eyepiece.And; The lll night vision technology is applied to the visible light light path; Make the background of corona after low-light strengthens, get into the another human eye, the user just can see corona image and background image thereof simultaneously like this, thereby the user can judge the particular location of corona discharge easily.
Because the main ultraviolet band that adopts carries out the detection of corona; Receive extraneous light to influence very little; Therefore human eye can be seen the virtual image of corona clearly, has improved the detection accuracy rate of corona, and owing to Helmet Mounted Display itself is easy to carry; Only need that it is worn on head and upward get final product, thereby liberated both hands.Simultaneously; Because the use of lll night vision technology; Make also not influence when the wearer can see corona under the more weak situation of light at night and normally look thing; Therefore the maintainer can wear this Helmet Mounted Display at any time and carrying out service work, thereby can find corona phenomenon timely and overhaul timely, has avoided the loss of electric system greatly.
Description of drawings
Shown in accompanying drawing, above-mentioned and other purpose, characteristic and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by physical size equal proportion convergent-divergent.
Fig. 1 is the ultraviolet light line structure synoptic diagram of disclosed pair of spectrum Helmet Mounted Display of the embodiment of the invention;
Fig. 2 is the visible light light channel structure synoptic diagram of disclosed pair of spectrum Helmet Mounted Display of the embodiment of the invention;
Fig. 3 is the ultraviolet light line structure synoptic diagram of disclosed pair of spectrum Helmet Mounted Display of another embodiment of the present invention;
Fig. 4 is the visible light light channel structure synoptic diagram of disclosed pair of spectrum Helmet Mounted Display of another embodiment of the present invention.
Embodiment
Said as the background technology part, adopt observation method of the prior art, be difficult to find timely corona phenomenon; Inventor of the present invention discovers that the reasons for the above problems are, because the corona discharge initial stage can only produce the photon of very small amount; Be luminous intensity very a little less than, cause being difficult to observe, when naked eyes can be seen the corona discharge situation at corona discharge initial stage naked eyes; Often the damage of power equipment is very serious; In addition, though adopt infrared equipments such as infrared telescope and infrared camera also can detect the corona fault, owing to the infrared equipment actual detection to be the phenomenon of generating heat; When detecting corona phenomenon, power circuit or equipment are because of the corona well damage.
Based on above reason, the inventor considers that the wavelength coverage during owing to corona discharge probably is between the 230nm-405nm; Contained most ultraviolet band, and since night emitted in ultraviolet light object less, therefore can utilize ultraviolet band to detect corona phenomenon; And since night visible light light also a little less than; Normally look thing for what do not influence the user, also need increase the visible light light path, so that in time detect corona phenomenon and can in time overhaul at night.Simultaneously, owing to characteristics such as itself helmet detection system are easy to carry, the inventor thinks can use ultraviolet detector in helmet detection system, so that observe corona phenomenon timely.
It more than is the application's core concept; To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention carried out clear, intactly description, obviously; Described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
A lot of details have been set forth in the following description so that make much of the present invention; But the present invention can also adopt other to be different from alternate manner described here and implement; Those skilled in the art can do similar popularization under the situation of intension of the present invention, so the present invention does not receive the restriction of following disclosed specific embodiment.
Secondly, the present invention combines synoptic diagram to be described in detail, when the embodiment of the invention is detailed; For ease of explanation; The sectional view of expression device architecture can be disobeyed general ratio and done local the amplification, and said synoptic diagram is example, and it should not limit the scope of the present invention's protection at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Embodiment one
The structural drawing of disclosed pair of spectrum Helmet Mounted Display of present embodiment is as depicted in figs. 1 and 2; This Helmet Mounted Display can be applicable to corona and detects; Concrete, this pair spectrum Helmet Mounted Display comprises ultraviolet light path and visible light light path, wherein; Fig. 1 is the structural representation of said ultraviolet light path, and Fig. 2 is the structural representation of visible light light path.
Referring to Fig. 1, said ultraviolet light path comprises:
The ultraviolet imaging enhancer that links to each other with said ultraviolet object lens 11; Said ultraviolet object lens 11 images on the test surface of said ultraviolet imaging enhancer; This ultraviolet imaging enhancer can carry out the light signal of the corona that absorbs the spectrum conversion and strengthen the intensity of light signal; The light signal of the corona that light intensity is more weak converts the stronger visible light signal of light intensity into, makes human eye can observe the corona discharge phenomenon;
Wherein, said ultraviolet imaging enhancer comprises:
With the ultraviolet detector 13 that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet detector 13, that is to say, the test surface of said ultraviolet detector 13 is the test surface of said ultraviolet imaging enhancer;
First gleam image intensifier 14, the input face of said first gleam image intensifier 14 links to each other with the output face of said ultraviolet detector 13.
What obtain at the test surface of ultraviolet detector 13 is the real image of corona; At this moment, through the intensity of the light signal of the corona of ultraviolet detector 13 still very a little less than, human eye is difficult to observe; Therefore; Output face at ultraviolet detector 13 connects first gleam image intensifier 14, amplifies with the intensity to the light signal of corona, so that follow-up observation.
Referring to Fig. 2, said visible light light path comprises:
Second gleam image intensifier 22 that links to each other with said thing 21; Said object lens 21 image on the test surface of said second gleam image intensifier 22; Since night light intensity a little less than; For the ease of normally looking thing at night, can be with the light intensity of the visible images of the extraneous scenery of object lens 21 picked-ups being amplified through second gleam image intensifier 22, so that human eye can be observed is clear;
Need to prove; What see through first eyepiece 16 is the virtual image that corona stands upside down; If there is certain deviation in the sight line when corona occurrence positions and people are at eye level, then the occurrence positions of the corona seen of human eye will deviation occur by occurrence positions actual with it, in like manner; The virtual image of the extraneous scenery of seeing through second eyepiece 24 is also stood upside down, and is not easy to very much the observation of scenery to external world.Therefore; For the virtual image that human eye is seen identical with real image; And be positioned at same position; Disclosed Helmet Mounted Display also comprises in the present embodiment, is positioned at first optical fiber image inverter 15 between the input face of output face (being the output face of said first gleam image intensifier 14) and said first eyepiece 16 of said ultraviolet imaging enhancer; And second optical fiber image inverter 23 between the input face of the output face of said second gleam image intensifier 22 and said second eyepiece 24.Optical fiber image inverter is can be with reverse 180 ° optical element of image transmitted.
Increase after said first optical fiber image inverter 15 and second optical fiber image inverter 23, the virtual image of the said corona that human eye is seen through said first eyepiece is specially and the big upright virtual image such as said corona; And/or said human eye sees that through said second eyepiece virtual image of said extraneous scenery is specially and the big upright virtual image such as said extraneous scenery, so that the human eye observation of scenery and corona phenomenon to external world.For the ease of distinguishing the material object and the virtual image, the material object and the virtual image are separately drawn among Fig. 1 and Fig. 2, during actual observation, material object overlaps with the virtual image.
In addition, need to prove, in the present embodiment for the ease of detection to corona; And after detecting corona discharge, can in time keep in repair; Need in maintenance process, still can clearly see corona phenomenon and extraneous scenery, and the virtual image that produces the equipment of corona should coincide with the position of former material object with the virtual image of the corona that observes; Therefore; Need make ultraviolet object lens 11 identical with the object distance of object lens 21, first eyepiece 16 is identical with the image distance of second eyepiece 24, and the object lens object distance should be identical with the image distance of eyepiece in same light path.
Preferably; The object distance of ultraviolet object lens described in the present embodiment 11 is the 0.3m-infinite distance; And/or the image distance of said first eyepiece 16 is the 0.3m-infinite distance, and the object distance of said object lens 21 is the 0.3m-infinite distance, and/or the image distance of said second eyepiece 24 is the 0.3m-infinite distance; Preferred, the object distance of said ultraviolet object lens 11 is the 0.5m-infinite distance, and/or the image distance of said first eyepiece 16 is the 0.5m-infinite distance, and the object distance of said object lens 21 is the 0.5m-infinite distance, and/or the image distance of said second eyepiece 24 is the 0.5m-infinite distance.
In order to achieve the above object; The control assembly of two kinds of light paths specifically has 2 kinds of designs; The one, if ultraviolet light path and visible light light path respectively by the Different control unit control, then need make the controlled variable of control assembly of the two identical, so that the object distance of two-way light path is identical with image distance; The 2nd, if ultraviolet light path and visible light light path are simultaneously by a control assembly control; Then need adjust the controlled variable of this control assembly, make its controlled variable identical, so that the object distance of two-way light path is identical with image distance to the two-way light path to the two-way light path.
Two spectrum Helmet Mounted Displays of the testing process that is applied to corona that the embodiment of the invention provided, survey the night that mainly can be applicable to corona.This Helmet Mounted Display adopts the two-way light path; The light signal of the ultraviolet object lens picked-up corona in the ultraviolet light path; Filter out the light signal of other wave band except that ultraviolet band through ultraviolet filter; Adopt ultraviolet imaging enhancer that the light signal of the corona that absorbs is carried out the spectrum conversion afterwards and strengthen, be converted into the stronger visible light signal of light intensity, make the virtual image that to observe corona with the pairing human eye of ultraviolet light path through first eyepiece.And; The lll night vision technology is applied to the visible light light path; Make the background of corona after low-light strengthens, get into the another human eye, the user just can see corona image and background image thereof simultaneously like this, thereby the user can judge the particular location of corona discharge easily.
Because the main ultraviolet band that adopts carries out the detection of corona; Receive extraneous light to influence very little; Therefore human eye can be seen the virtual image of corona clearly, has improved the detection accuracy rate of corona, and owing to Helmet Mounted Display itself is easy to carry; Only need that it is worn on head and upward get final product, thereby liberated both hands.Simultaneously; Because the use of lll night vision technology; Make also not influence when the wearer can see corona under the more weak situation of light at night and normally look thing; Therefore the maintainer can wear this Helmet Mounted Display at any time and carrying out service work, thereby can find corona phenomenon timely and overhaul timely, has avoided the loss of electric system greatly.
And, owing to adopt ultraviolet band to carry out the detection of corona in the present embodiment, therefore, still can operate as normal under bad weather condition such as greasy weather, accurately the location is applicable to the fault detect at night of high-voltage transforming system and transmission line of electricity etc. fully.
Embodiment two
Structural drawing such as Fig. 3 and shown in Figure 4 of the two spectrum Helmet Mounted Displays of the testing process that can be applicable to corona that the embodiment of the invention provides; This pair spectrum Helmet Mounted Display comprises ultraviolet light path and visible light light path; Wherein, Fig. 3 is the structural representation of said ultraviolet light path, and Fig. 4 is the structural representation of visible light light path.
Referring to Fig. 3, said ultraviolet light path comprises:
With the ultraviolet imaging enhancer that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet imaging enhancer;
First optical fiber image transmission beam 17 and first eyepiece 16, the input face end of said first optical fiber image transmission beam 17 links to each other with the output face of said ultraviolet imaging enhancer, and its output face end links to each other with said first eyepiece 16, as the object plane of said first eyepiece 16;
First spectroscope or first catoptron 18 that link to each other with said first eyepiece 16; Said first spectroscope or first catoptron 18 have angle with the optical axis of said first eyepiece 16; Get into human eye through said first spectroscope or first catoptron, 18 light reflected, the virtual image of the corona that human eye is seen and said corona are positioned at same position;
Similar with a last embodiment, said ultraviolet imaging enhancer comprises:
With the ultraviolet detector 13 that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet detector 13, that is to say, the test surface of said ultraviolet detector 13 is the test surface of said ultraviolet imaging enhancer;
First gleam image intensifier 14, the input face of said first gleam image intensifier 14 links to each other with the output face of said ultraviolet detector 13.
Said optical fiber image transmission beam is the fibre bundle that together is made up of the multifiber stationary arrangement; It can be with the image planes with certain area through every optical fiber; To look like of pointwise reaches the other end by an end of fibre bundle, and middle no longer through being similar to the such signal conversion process of optical communication.Can pass through the twisted fiber coherent fiber bundle in the present embodiment, change the upright and handstand situation of the virtual image that eyepiece becomes, therefore, not need to be provided with in addition again the upset that optical fiber image inverter is realized the virtual image in the present embodiment.
Said spectroscope is also referred to as semi-transparent semi-reflecting lens; Can reflect the entering human eye through the light that eyepiece was handled; So that human eye is seen the virtual image of corona at the corona discharge place; The virtual image that is about to the corona after this Helmet Mounted Display is handled overlaps with the background of the generation corona discharge of reality, to reach the purpose of seeing the virtual image of corona in actual electrical corona place, with the accuracy rate that guarantees to survey.And; Because spectroscopical use; If light intensity allows, when making human eye can see the corona virtual image, also do not influence and normally look thing, the maintainer can wear this Helmet Mounted Display at any time and carry out service work; Thereby can find corona phenomenon timely and overhaul timely, avoid the loss of electric system greatly.
If above-mentioned ultraviolet light path part adopts spectroscope and non-reflective mirror; The testing process that promptly can be used for the corona on daytime; At this moment, said ultraviolet imaging enhancer can adopt a day blind ultraviolet imaging enhancer, and said ultraviolet filter needs to filter the light signal of other wave band except that day blind ultraviolet band.
Because the Helmet Mounted Display in the present embodiment is mainly used in the detection of corona at night; Therefore, above-mentioned ultraviolet light path part only need realize that the detection of halation gets final product, therefore; Can adopt spectroscope also can adopt catoptron in the present embodiment, the observation of scenery is given the visible light light path and is surveyed to external world.
Referring to Fig. 4, said visible light light path comprises:
Second gleam image intensifier 22 that links to each other with said object lens 21, said object lens 21 image on the test surface of said second gleam image intensifier 22;
Second optical fiber image transmission beam 25 and second eyepiece 24, the input face end of said second optical fiber image transmission beam 25 links to each other with the output face of said second gleam image intensifier 22, and its output face end links to each other with said second eyepiece 24, as the object plane of said second eyepiece 24;
Second spectroscope or second catoptron 26 that link to each other with said second eyepiece 24; Said second spectroscope or second catoptron 26 have angle with the optical axis of said second eyepiece 24; Get into human eye through said second spectroscope or second catoptron, 26 light reflected, the virtual image of the said extraneous scenery that human eye is seen and said extraneous scenery are positioned at same position.
With similar in the ultraviolet light path, because mainly using with night, the helmet detector of present embodiment surveys, then can adopt second spectroscope in the visible light light path, also can adopt second catoptron, very little to the observed result influence of human eye.
Need to prove; Do not limit the size of the angle of spectroscope in two light paths or catoptron and eyepiece optical axis in the present embodiment; As long as can make the light after spectroscope or mirror reflects can get into human eye; Concrete angle can be adjusted according to the concrete ornaments position of each parts in the helmet-mounted display system, and preferred, the optical axis of said first spectroscope or first catoptron and said first eyepiece is 30 ° of-60 ° of angles; And/or the optical axis of said second spectroscope or second catoptron and said second eyepiece is 30 ° of-60 ° of angles; Preferred, the optical axis of said first spectroscope or first catoptron and said first eyepiece is 45 ° of angles, and/or the optical axis of said second spectroscope or second catoptron and said second eyepiece is 45 ° of angles.
Because the light intensity of said corona discharge is very little; And the Helmet Mounted Display in the present embodiment is primarily aimed at the detection at night, and is therefore, preferred; First spectroscopical reflectivity described in the present embodiment is greater than transmissivity, and/or said second spectroscopical reflectivity is greater than transmissivity.
The setting of the image distance of the object distance of ultraviolet object lens described in the present embodiment, object lens and first eyepiece and second eyepiece and a last embodiment are similar, repeat no more in the present embodiment.
Different with a last embodiment is; The corona signal that behind first gleam image intensifier and second gleam image intensifier, obtains in the present embodiment and the light signal of extraneous scenery; Be not directly to get into human eye, but adopt the light signal that optical fiber image transmission beam will be to be observed to pass through first eyepiece and second eyepiece, form the virtual image of amplifying through eyepiece; Light is got into human eye by spectroscope or mirror reflects afterwards; At this moment, the pairing human eye of ultraviolet light path just can be seen the virtual image of corona at the corona discharge place, and the pairing another human eye of visible light light path just can observe the virtual image of extraneous scenery at the corona discharge place.
In actual design, above-mentioned difference is presented as that each optical element among the last embodiment all is arranged at the dead ahead of human eye; The just virtual image after each optical element is handled that human eye is seen get final product and only need in the present embodiment that the spectroscope in two light paths or catoptron are arranged at human eye the place ahead, and the user can be through the angle of adjusting spectroscope or catoptron and eyepiece optical axis; Select the scenery observed, as adopting spectroscope, human eye can see through spectroscope; See the real image of extraneous scenery; Also can see the virtual image after each optical element is handled,, only need remove spectroscope and get final product if do not want to watch the virtual image.
Need to prove that the virtual image of the corona that observes respectively through first eyepiece and second eyepiece and the virtual image of extraneous scenery can be through the upright virtual image after amplifying, so that the equipment situation in an observation distant place.Certainly,, can close the ultraviolet light path if only be used for normally looking night under the situation of thing, only use the visible light light path to external world scenery observe, the control situation of concrete two light paths can be regulated according to actual operating position, repeats no more here.
Embodiment three
Different with above two embodiment is; The structural drawing of the two spectrum Helmet Mounted Displays in the present embodiment such as Fig. 1 and shown in Figure 4, same, this Helmet Mounted Display comprises ultraviolet light path and visible light light path; Fig. 1 is the structural representation of said ultraviolet light path, and Fig. 4 is the structural representation of visible light light path.Similar among ultraviolet light path in the present embodiment and the embodiment one, visible light light path and embodiment two are similar.
Concrete, referring to Fig. 1, said ultraviolet light path comprises:
With the ultraviolet imaging enhancer that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet imaging enhancer;
Wherein, said ultraviolet imaging enhancer comprises:
With the ultraviolet detector 13 that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet detector 13;
First gleam image intensifier 14, the input face of said first gleam image intensifier 14 links to each other with the output face of said ultraviolet detector 13.
Referring to Fig. 4, said can the light light path being comprised:
Second gleam image intensifier 22 that links to each other with said object lens 21, said object lens 21 image on the test surface of said second gleam image intensifier 22;
Second optical fiber image transmission beam 25 and second eyepiece 24, the input face end of said second optical fiber image transmission beam 25 links to each other with the output face of said second gleam image intensifier 22, and its output face end links to each other with said second eyepiece 24, as the object plane of said second eyepiece 24;
Second spectroscope or second catoptron 26 that link to each other with said second eyepiece 24; Said second spectroscope or second catoptron 26 have angle with the optical axis of said second eyepiece 24; Get into human eye through said second spectroscope or second catoptron, 26 light reflected, the virtual image of the said extraneous scenery that human eye is seen and said extraneous scenery are positioned at same position.
Embodiment four
Different with above embodiment is; The structural drawing of the two spectrum Helmet Mounted Displays in the present embodiment as shown in Figures 2 and 3, and is same, and this Helmet Mounted Display comprises ultraviolet light path and visible light light path; Fig. 3 is the structural representation of said ultraviolet light path, and Fig. 2 is the structural representation of visible light light path.Similar among ultraviolet light path in the present embodiment and the embodiment two, visible light light path and embodiment one are similar.
Concrete, said ultraviolet light path comprises:
With the ultraviolet imaging enhancer that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet imaging enhancer;
First optical fiber image transmission beam 17 and first eyepiece 16, the input face end of said first optical fiber image transmission beam 17 links to each other with the output face of said ultraviolet imaging enhancer, and its output face end links to each other with said first eyepiece 16, as the object plane of said first eyepiece 16;
First spectroscope or first catoptron 18 that link to each other with said first eyepiece 16; Said first spectroscope or first catoptron 18 have angle with the optical axis of said first eyepiece 16; Get into human eye through said first spectroscope or first catoptron, 18 light reflected, the virtual image of the corona that human eye is seen and said corona are positioned at same position;
Said ultraviolet imaging enhancer comprises:
With the ultraviolet detector 13 that said ultraviolet object lens 11 links to each other, said ultraviolet object lens 11 images on the test surface of said ultraviolet detector 13, that is to say, the test surface of said ultraviolet detector 13 is the test surface of said ultraviolet imaging enhancer;
First gleam image intensifier 14, the input face of said first gleam image intensifier 14 links to each other with the output face of said ultraviolet detector 13.
Said visible light light path comprises:
Second gleam image intensifier 22 that links to each other with said thing 21; Said object lens 21 image on the test surface of said second gleam image intensifier 22; Since night light intensity a little less than; For the ease of normally looking thing at night, can be with the light intensity of the visible images of the extraneous scenery of object lens 21 picked-ups being amplified through second gleam image intensifier 22, so that human eye can be observed is clear;
The concrete setting of each optical element can be repeated no more referring to embodiment one and embodiment two here among embodiment three and the embodiment four.
What describe in detail in the various embodiments of the present invention only is the light path part of this Helmet Mounted Display; It will be understood by those skilled in the art that between above-mentioned each optical element it is interconnective through certain physical construction, and; Except that light path part; This Helmet Mounted Display also should comprise circuit part, is used to each element power supply, as is the circuit and the power supply of power supplies such as ultraviolet object lens, eyepiece, image intensifier.
Various piece adopts the mode of going forward one by one to describe in this instructions, and what each part stressed all is and the difference of other parts that identical similar part is mutually referring to getting final product between the various piece.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to embodiment illustrated herein, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a two spectrum Helmet Mounted Display is applied to corona and detects, and it is characterized in that comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer filters other light signal except that ultraviolet band;
First eyepiece, the object plane of said first eyepiece links to each other with the output face of said ultraviolet imaging enhancer, and human eye is seen the virtual image of said corona through said first eyepiece, and the virtual image of said corona and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second eyepiece, the object plane of said second eyepiece links to each other with the output face of said second gleam image intensifier, and human eye is seen the virtual image of said extraneous scenery through said second eyepiece, and the virtual image of said extraneous scenery and said extraneous scenery are positioned at same position.
2. according to claim 1 pair of spectrum Helmet Mounted Display is characterized in that said ultraviolet imaging enhancer comprises:
With the ultraviolet detector that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet detector;
First gleam image intensifier, the input face of said first gleam image intensifier links to each other with the output face of said ultraviolet detector.
3. according to claim 1 pair of spectrum Helmet Mounted Display is characterized in that the object distance of said ultraviolet object lens is the 0.3m-infinite distance, and/or the image distance of said first eyepiece is the 0.3m-infinite distance; The object distance of said object lens is the 0.3m-infinite distance, and/or the image distance of said second eyepiece is the 0.3m-infinite distance.
4. according to claim 1,2 or 3 described pairs of spectrum Helmet Mounted Displays, it is characterized in that, also comprise:
First optical fiber image inverter between the input face of the output face of said ultraviolet imaging enhancer and said first eyepiece; And
Second optical fiber image inverter between the input face of the output face of said second gleam image intensifier and said second eyepiece.
5. according to claim 4 pair of spectrum Helmet Mounted Display is characterized in that, the virtual image of the said corona that human eye is seen through said first eyepiece is specially and the big upright virtual image such as said corona; And/or said human eye sees that through said second eyepiece virtual image of said extraneous scenery is specially and the big upright virtual image such as said extraneous scenery.
6. a two spectrum Helmet Mounted Display is applied to corona and detects, and it is characterized in that comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First optical fiber image transmission beam and first eyepiece, the input face end of said first optical fiber image transmission beam links to each other with the output face of said ultraviolet imaging enhancer, and its output face end links to each other with said first eyepiece, as the object plane of said first eyepiece;
First spectroscope or first catoptron that link to each other with said first eyepiece; The optical axis of said first spectroscope or first catoptron and said first eyepiece has angle; Light after said first spectroscope or first mirror reflects gets into human eye, and the virtual image of the corona that human eye is seen and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second optical fiber image transmission beam and second eyepiece, the input face end of said second optical fiber image transmission beam links to each other with the output face of said second gleam image intensifier, and its output face end links to each other with said second eyepiece, as the object plane of said second eyepiece;
Second spectroscope or second catoptron that link to each other with said second eyepiece; The optical axis of said second spectroscope or second catoptron and said second eyepiece has angle; Light after said second spectroscope or second mirror reflects gets into human eye, and the virtual image of the said extraneous scenery that human eye is seen and said extraneous scenery are positioned at same position.
7. according to claim 6 pair of spectrum Helmet Mounted Display; It is characterized in that; The optical axis of said first spectroscope or first catoptron and said first eyepiece is 30 ° of-60 ° of angles, and/or the optical axis of said second spectroscope or second catoptron and said second eyepiece is 30 ° of-60 ° of angles.
8. according to claim 6 or 7 described pairs of spectrum Helmet Mounted Displays, it is characterized in that said first spectroscopical reflectivity is greater than transmissivity, and/or said second spectroscopical reflectivity is greater than transmissivity.
9. a two spectrum Helmet Mounted Display is applied to corona and detects, and it is characterized in that comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First eyepiece, the object plane of said first eyepiece links to each other with the output face of said ultraviolet imaging enhancer, and human eye is seen the virtual image of said corona through said first eyepiece, and the virtual image of said corona and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second optical fiber image transmission beam and second eyepiece, the input face end of said second optical fiber image transmission beam links to each other with the output face of said second gleam image intensifier, and its output face end links to each other with said second eyepiece, as the object plane of said second eyepiece;
Second spectroscope or second catoptron that link to each other with said second eyepiece; The optical axis of said second spectroscope or second catoptron and said second eyepiece has angle; Light after said second spectroscope or second mirror reflects gets into human eye, and the virtual image of the said extraneous scenery that human eye is seen and said extraneous scenery are positioned at same position.
10. a two spectrum Helmet Mounted Display is applied to corona and detects, and it is characterized in that comprise ultraviolet light path and visible light light path, wherein, said ultraviolet light path comprises:
Ultraviolet object lens is used to absorb the light signal of corona;
With the ultraviolet imaging enhancer that said ultraviolet object lens links to each other, said ultraviolet object lens images on the test surface of said ultraviolet imaging enhancer;
Ultraviolet filter between said ultraviolet object lens and said ultraviolet imaging enhancer;
First optical fiber image transmission beam and first eyepiece, the input face end of said first optical fiber image transmission beam links to each other with the output face of said ultraviolet imaging enhancer, and its output face end links to each other with said first eyepiece, as the object plane of said first eyepiece;
First spectroscope or first catoptron that link to each other with said first eyepiece; The optical axis of said first spectroscope or first catoptron and said first eyepiece has angle; Light after said first spectroscope or first mirror reflects gets into human eye, and the virtual image of the corona that human eye is seen and said corona are positioned at same position;
Said visible light light path comprises:
Object lens are used to absorb the visible images of extraneous scenery;
Second gleam image intensifier that links to each other with said object lens, said object lens image on the test surface of said second gleam image intensifier;
Second eyepiece, the object plane of said second eyepiece links to each other with the output face of said second gleam image intensifier, and human eye is seen the virtual image of said extraneous scenery through said second eyepiece, and the virtual image of said extraneous scenery and said extraneous scenery are positioned at same position.
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