CN102621600B - Vehicle-mounted rain sensor and optical lens group system - Google Patents
Vehicle-mounted rain sensor and optical lens group system Download PDFInfo
- Publication number
- CN102621600B CN102621600B CN201210093550.3A CN201210093550A CN102621600B CN 102621600 B CN102621600 B CN 102621600B CN 201210093550 A CN201210093550 A CN 201210093550A CN 102621600 B CN102621600 B CN 102621600B
- Authority
- CN
- China
- Prior art keywords
- lens
- vehicle
- rain sensor
- group system
- optical lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 81
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses an optical lens group system of a vehicle-mounted rain sensor. The optical lens group system comprises a plurality of lens receiving and transmitting lenses pairs, and the geometric center distances of transmitting lenses and receiving lenses of the lens receiving and transmitting lenses pairs are not completely the same. The geometric center distances of the transmitting lenses and the receiving lenses of the lens receiving and transmitting lenses pairs in the optical lens group are not completely the same, and the lens receiving and transmitting pairs with different geometric center distances are corresponding to windshield glasses with different optimal thicknesses, wherein the receiving and transmitting pairs with long light path (large geometric center distance) have better performance in thick windshield glasses, and the receiving and transmitting pairs with short light path (small geometric center distance) have better performance in thin windshield glasses. Therefore, the vehicle-mounted rain sensor formed from the optical lens group system has better overall performance when being used on windshield glasses with different thicknesses, and the application range to the windshield glass thickness is enlarged.
Description
Technical field
The present invention relates to Electrical controlling device, more particularly, relate to a kind of vehicle-mounted Sense Rain Sensor and optical lens group system thereof.
Background technology
Sense Rain Sensor can detect the intensity of rainfall, automatically controls wiper system and works under suitable pattern.Sense Rain Sensor is located at after windshield, and it can adjust the water speed of scraping of rain brush automatically according to the size that drops on amount of rainfall on glass, has avoided regulating manually the speed of scraping water, has increased the comfort level while driving; Meanwhile, can make driver concentrate one's energy to drive, remove accident potential.
When work, by light emitting diode or other luminescent devices, send light signal, angle incident windshield to set after light being converged by diversing lens, light is in outgoing after total reflection in windshield, then by photosensitive device, received after receiver lens converges.When glass surface is dry, light is almost that 100% ground reflects by photosensitive device and receives.On windshield during rain, the light reflecting will reduce, rainwater on windshield is more, the light reflecting is just fewer, photosensitive device is according to the size that receives the Strength Changes judgement rainfall amount of light, and regulating the speed of rain brush, the less expression precipitation of light intensity is larger, regulates rain brush to make its speed faster.Wherein, optical lens system is the important structure of Sense Rain Sensor, and its form of lens and layout structure have determined the travel path of light signal and the thickness of applicable windshield.
In existing Sense Rain Sensor, optical lens system comprises: the layout type such as side-by-side, square form, diamond type and alternating expression, every kind of corresponding specific lens T-R of layout type is to (a pair of receiver lens and diversing lens) spacing, being that the right geometric center spacing of its all lens T-R of every kind of layout type is identical, is a certain fixed value.
Known by foregoing description, its all lens T-R of every kind of layout type of existing optical lens group system to spacing be single-phase with, be only applicable to certain and fix (the best) thickness and with the windshield of thickness in the certain deviation range of described optimum thickness.Therefore,, when the thickness of windshield exceeds the optimum thickness of existing a certain optical lens group system when larger, adopt the sensor of optical lens group system will be no longer applicable.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of vehicle-mounted Sense Rain Sensor and optical lens system thereof, described optical lens system has increased the scope of application to windshield thickness, makes to adopt the vehicle-mounted Sense Rain Sensor of described optical lens system to be applicable to the windshield of different-thickness.
For achieving the above object, the invention provides following technical scheme:
A vehicle-mounted Sense Rain Sensor optical lens group system, comprising:
Multiple lens T-R pair;
The diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
Preferably, in said system, lens T-R is 2,3 or 4 to group number.
Preferably, in said system, when lens T-R is to group number while being 4,4 groups of lens T-R are to the layout structure that is rectangle.
Preferably, in said system, when lens T-R is 4 to group number, 4 groups of lens T-R are to layout parallelogram structure.
Preferably, in said system, described lens are aspheric mirror.
Preferably, in said system, described aspheric mirror comprises: hyperbolic mirror, Fresnel Lenses.
Preferably, in said system, described multiple lens T-R is to having common reception lens.
Preferably, in said system, the right diversing lens of described multiple lens T-R is positioned on a circle or elliptical boundary, and described common reception lens are positioned at described circle or oval inner.
Preferably, in said system, the optical axis of described lens and vehicle windscreen surface angle are 45 °.
The present invention also provides a kind of vehicle-mounted Sense Rain Sensor, it is characterized in that, comprising:
Package casing;
Signal generation apparatus;
Signal receiving device;
Optical lens group system;
Control circuit, described control circuit connects described signal generation apparatus and signal receiving device, and is connected with wiper controller by communication bus, by wiper controller, drives Wiper motor;
Wherein, described optical lens group system comprises: multiple lens T-R pair, the diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
From technique scheme, can find out, vehicle-mounted Sense Rain Sensor optical lens group system provided by the present invention comprises: multiple lens T-R pair; The diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.The diversing lens that lens T-R in optical lens group of the present invention is right is entirely not identical with the geometric center of receiver lens distance, and the windshield of the lens T-R with different geometric center distances to corresponding different-thickness, wherein, the lens T-R of long light path (geometric center distance is larger) is better to the windshield performance thicker, and the lens T-R of short light path (geometric center distance is less) is better to the windshield performance thinner.So the vehicle-mounted Sense Rain Sensor that adopts described optical lens group system to form goes for the windshield of different-thickness, has increased the scope of application to windshield thickness.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the side-by-side optical lens group system of vehicle-mounted Sense Rain Sensor in prior art;
Fig. 2 is the square form optical lens group system of vehicle-mounted Sense Rain Sensor in prior art;
Fig. 3 is the diamond type optical lens group system of vehicle-mounted Sense Rain Sensor in prior art;
Fig. 4 is the alternating expression optical lens group system of vehicle-mounted Sense Rain Sensor in prior art;
Fig. 5 is the index path of windshield outside surface during without ponding;
Fig. 6 is the index path of windshield outside surface while having ponding;
The structural representation of a kind of rectangle layout mode optical lens group system that Fig. 7 provides for the embodiment of the present invention;
The structural representation of a kind of parallelogram layout type optical lens group system that Fig. 8 provides for the embodiment of the present invention;
The structural representation of a kind of circular layout mode optical lens group system that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Just as described in the background section, in existing optical lens group system lens T-R to spacing be single-phase with, be only applicable to certain and fix (the best) thickness and with the windshield of thickness in the certain deviation range of described optimum thickness.And the vehicle-mounted Sense Rain Sensor consisting of described optical lens group system is applicable to certain thickness windshield.When the thickness of windshield exceeds the optimum thickness of existing a certain optical lens group system when larger, adopt the sensor of optical lens group system will be no longer applicable.
With reference to figure 1-Fig. 4, in existing Sense Rain Sensor, optical lens system comprises: the layout type such as side-by-side, square form, diamond type and alternating expression, in figure, dashed rectangle is depicted as one group of lens T-R to structure, the corresponding a kind of specific lens T-R of each optical lens group system is to spacing, being that the right geometric center spacing of every kind of its lens T-R of optical lens group system is identical, is a certain fixed value.
With reference to figure 5, in figure, only show one group of lens T-R pair.Vehicle-mounted Sense Rain Sensor is fine and close contact of inside surface with automobile wind shield glass 2 by transparent flexible optical waveguide layer 1, lens T-R is to forming the top cover of vehicle-mounted Sense Rain Sensor package casing 3, and contact with flexible light-conducting layer 1 is fine and close, wherein, diversing lens 4 makes it with certain angle [alpha] incident windshield 2 after the light signal of signal generation apparatus 5 transmittings is converged, and described light signal is received by signal receiving device 7 after converging by receiver lens 6 after total reflection in windshield again.Wherein, in the present invention, the lens of all lens T-R are integrated formed structures, and lens are connected the top cover that base forms package casing 3 with it.
The refractive index of the refractive index of lens and windshield 2 is more or less the same, and the isostructural refractive index of top cover of flexible light-conducting layer 1 and package casing 3 can not interfere with the measurement effect of Sense Rain Sensor to the impact of propagation path of light.
When glass outer surface is anhydrous, glass material generally 41 ° of left and right, makes its incident angle β in windshield 2 outside surface inner sides be greater than windshield with respect to being all-trans of air critical firing angle by setting the angle α of light signal incident windshield 2 inside surfaces to the cirtical angle of total reflection of air.Wherein, alpha+beta=90 °.
Now only have reflex, ignore the thickness (thickness of flexible light-conducting layer 1 relatively I is ignored) of flexible light-conducting layer 1, from triangle edges angular dependence, (the best) thickness h and the lens T-R of windshield to the pass of spacing L are:
Technical solution of the present invention preferably sets α=45 °,, and now
With reference to figure 6, when windshield outside surface has ponding, glass material is about 61 ° to the cirtical angle of total reflection of water, 61 ° of β=45 ° <, now reflected light path is constant, but light signal is in the outside surface inner reflection of windshield 2, because the existence of ponding 8 makes a part of light signal to reflect described windshield 2 by ponding 8, and then the reflected light signal remitted its fury that receiving trap 7 is received, when ponding more than 8, the reflected light signal intensity that described receiving trap 7 is received is more weak.
From above-mentioned discussion.When incident angle α is fixedly time, increase the distance (light path) that lens T-R is propagated light before increasing total reflection phenomenon and occurring to spacing L, can increase the thickness h of tested windshield.
So, inventor studies discovery, can adopt by organizing different spacing lens T-R more and prepare vehicle-mounted Sense Rain Sensor to forming optical lens group system, make described vehicle-mounted Sense Rain Sensor be applicable to the windshield of different-thickness, increased the scope of application of vehicle-mounted Sense Rain Sensor to windshield thickness.
In above-mentioned research, the invention provides a kind of vehicle-mounted Sense Rain Sensor optical lens group system, comprising:
Multiple lens T-R pair;
The diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
Meanwhile, based on described vehicle-mounted Sense Rain Sensor optical lens group system, the present invention also provides a kind of vehicle-mounted Sense Rain Sensor, comprising:
Package casing;
Signal generation apparatus;
Signal receiving device;
Optical lens group system;
Control circuit, described control circuit connects described signal generation apparatus and signal receiving device, and is connected with wiper controller by communication bus, by windshield-wiper controller, drives Wiper motor;
Wherein, described optical lens group system comprises: multiple lens T-R pair, the diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
As above-mentioned, the multiple lens T-R spacing of described optical lens group system (diversing lens and receiver lens geometric center distance) is entirely not identical, the windshield of the corresponding optimum thickness of each lens T-R spacing, make described vehicle-mounted Sense Rain Sensor be applicable to the windshield of different-thickness, increased the scope of application of vehicle-mounted Sense Rain Sensor to windshield thickness.
It is more than the application's core concept, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
A lot of details have been set forth in the following description so that fully understand 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 without prejudice to intension of the present invention in the situation that, so the present invention is not subject to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when the embodiment of the present invention is described in detail in detail; for ease of explanation; the sectional view of indication device part structure can be disobeyed general ratio and be done local amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three-dimensional space that should comprise in addition, length, width and height in actual fabrication.
Embodiment mono-
Based on technique scheme, the present embodiment provides a kind of vehicle-mounted Sense Rain Sensor optical lens group system, and described optical lens group system comprises:
4 groups of lens T-R pair, described lens T-R is to comprising: diversing lens and receiver lens, the diversing lens that described 4 groups of lens T-R are right is entirely not identical with receiver lens geometric center distance.
With reference to figure 7, described 4 groups of lens T-R are to the layout structure that is rectangle, wherein, described 4 groups of lens T-R are to being positioned on a rectangular four edges, lens T-R on described rectangular two long limits is identical to spacing, lens T-R on described rectangular two shorter limits is identical to spacing, and two groups of lens T-R on the long limit of described rectangle are obviously greater than two groups of lens T-R on its minor face to spacing to spacing.
With reference to figure 8, described 4 groups of lens T-R are to all right parallelogram structure, described 4 groups of lens T-R are to being positioned on a parallel four edges, the four edges of described parallelogram is elongated entirely not identical, lens T-R on two long limits of described parallelogram is identical to spacing, lens T-R on two shorter limits of described parallelogram is identical to spacing, and two groups of lens T-R on the long limit of described parallelogram are obviously greater than two groups of lens T-R on its minor face to spacing to spacing.
Optical lens group system described in Fig. 7 and Fig. 8 has comprised that two fixing lens T-R are to spacing, by regulating described two fixing lens T-R can increase the scope of application of vehicle-mounted Sense Rain Sensor to automobile wind shield glass thickness to spacing.
In the vehicle-mounted Sense Rain Sensor that the optical lens group system of employing said structure forms, the light path of lightray propagation has comprised long spacing light path (lens T-R is to the light path between the larger lens of spacing), short spacing light path (lens T-R is to the light path between the less lens of spacing).Wherein, long light path is suitable for the windshield that thickness is thicker, and short light path is suitable for the windshield of thinner thickness.
In addition, the mode of arranging in pairs or groups by long light path and short light path is conducive to compression and the layout optimization that full light path scope is cut size outward, is conducive to improve the utilization factor of Sense Rain Sensor sectional area, improves installation and the aesthetic of Sense Rain Sensor.
Under the volume of identical Sense Rain Sensor, under the condition of identical Sense Rain Sensor cross-sectional area and identical lens diameter, adopt described unequal-interval lens T-R Sense Rain Sensor can be expanded at least 1mm to the bound limit value of the thickness usable range of windshield to the optical lens group system of layout.The thickness of the windshield that the Sense Rain Sensor prepared as existing optical lens group system is applicable is generally 4mm-6mm, the thickness of the windshield that the Sense Rain Sensor prepared by technical scheme described in the present embodiment is applicable is 3mm-7mm, has increased the scope of application to windshield thickness.
Simultaneously, the optical lens group system of technique scheme can improve the utilization factor of Sense Rain Sensor housing (package casing) xsect, make the area not utilizing of sensor cross-section on long-pending reduce, the layout of special described rectangle structure makes sensor cross-section not utilize area minimum on long-pending.
The general optical lens group system to structure for 4 groups of lens T-R, its layout type is quadrilateral structure, all lens T-R are to being positioned on a tetragonal border, while is in view of the requirement of installation requirements and circuit structure layout, now described housing is generally designed to have the rectangular structure of setting size, described optical lens group and be separately positioned on the inside surface of two rectangular side walls that described rectangular parallelepiped housing is relative (described sidewall place plane is above-mentioned xsect) with the signal receiving/transmission device (signal generation apparatus and signal receiving device) of its coupling, so the layout of described rectangle structure makes sensor cross-section not utilize area minimum on long-pending.
When the area not utilizing on sensor cross-section is long-pending reduces, increased available region outside described optical lens group, and then the design space of the lens combination of the increase photosensitive sensor different from Sense Rain Sensor function, and then can be on same housing integration can better sensitive lens group or there is the structure of other functions.
The lens of described optical lens group are aspheric mirror, and the spotlight effect of aspheric mirror is better, and energy transfer efficiency is high, and then can make vehicle-mounted Sense Rain Sensor have better signal to noise ratio (S/N ratio) and adaptability.
Preferably, the lens of described optical lens group are hyperbolic mirror in aspheric mirror or Fresnel Lenses etc.
Angle=45 ° of the inside surface of lens axis and windshield are set.In actual production, only need make α 45 ° of left and right, guarantee that the incident angle β of light signal inside windshield outside surface is between windshield is with respect to the cirtical angle of total reflection of air and the cirtical angle of total reflection with respect to water, so that only there is reflection (total reflection effect) when windshield outside surface is anhydrous, while having water, there is reflection and transmission.And the right angle that lens axis is divided windshield inside surface and its normal equally can be guaranteed to α is 45 ° of left and right, to realize above-mentioned purpose.The method realizes simple, without accurately measuring the angle of α.
The preferred implementation that above-mentioned optical lens group system is technical solution of the present invention, wherein lens T-R can also be 2 or 3 to group number.As long as its lens T-R is incomplete identical to spacing, its layout structure is not unique yet.
Known by foregoing description, vehicle-mounted Sense Rain Sensor optical lens group system can be applicable to the various riding vehicle that windshield is thinner described in the present embodiment, also goes for the commercial vehicle that windshield is thicker.Meanwhile, improved the utilization factor of vehicle-mounted Sense Rain Sensor housing sectional area.
Embodiment bis-
In above-described embodiment, lens T-R centering diversing lens and the receiver lens of optical lens group system are one to one, the present embodiment provides a kind of vehicle-mounted Sense Rain Sensor optical lens group system, described optical lens group system comprises multiple lens T-R pair, described multiple lens T-R is entirely not identical to spacing, and has common receiver lens.
With reference to figure 9, in described optical lens group system, the right diversing lens of all lens T-R is positioned on the border of a circle, and share a receiver lens A, described receiver lens A is positioned at the non-circle centre position of circle, can be by the position of described receiver lens A in circle be set, make corresponding four lens T-R shown in Fig. 8 right spacing L1, L2, L3, L4 entirely not identical, make the corresponding a plurality of light paths of described lens combination system, and then the vehicle-mounted Sense Rain Sensor that makes to be prepared from adapts to the windshield of a plurality of optimum thicknesses.
It should be noted that, same as the previously described embodiments, the present embodiment aims to provide a kind of lens T-R to the complete identical lens combination system of spacing, wherein the right group number of lens T-R with and layout type be not limited to mode described in embodiment.As according to the structure of Sense Rain Sensor package casing, the right diversing lens of all lens T-R also can be positioned on the border of same ellipse, and its common reception lens are positioned at described oval inner.
For the optical lens group system of non-quadrilateral layout, general processing mode is that Sense Rain Sensor package casing is set to a less thin column structure of thickness of setting size dimension, and all T-R lens are to being located on a cross section in described cylinder.As shown in Figure 4, in prior art, alternating expression layout adopts aforesaid way.So, for the layout type of optical lens group system described in the present embodiment, can adopt the package casing of column structure, to increase the utilization factor to Sense Rain Sensor xsect.Meanwhile, have above-mentioned analysis known, the mode of circular layout shown in Fig. 9 can make cylindricality seal on the sectional area of shell not utilize area minimum.
From the above mentioned, described in the present embodiment, optical lens group system can be to the lens T-R that should have a plurality of different light paths to (as the position of adjustable common reception lens makes each lens T-R all not identical to spacing), and then its usable range to windshield thickness is further increased.Meanwhile, can increase the utilization factor to Sense Rain Sensor xsect, so can be on same housing integration can better sensitive lens group or there is the structure of other functions.
Embodiment tri-
The present embodiment provides a kind of vehicle-mounted Sense Rain Sensor, comprising:
Package casing;
Signal generation apparatus;
Signal receiving device;
Optical lens group system;
Control circuit, described control circuit connects described signal generation apparatus and signal receiving device, and for example connects, by communication bus (LIN and CAN) and be connected with wiper controller, by windshield-wiper controller driving Wiper motor;
Wherein, described optical lens group system comprises: multiple lens T-R pair, the mirror lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
Concrete, described optical lens group system adopts layout type described in embodiment mono-or embodiment bis-.Described package casing adopts corresponding rectangular parallelepiped formula structure or column structure according to the requirement of the layout type of described optical lens group system and installation requirements and circuit structure layout.
Described in the present embodiment, vehicle-mounted Sense Rain Sensor adopts optical lens group system described in embodiment mono-or embodiment bis-, therefore described vehicle-mounted Sense Rain Sensor goes for the windshield of different-thickness; Meanwhile, can increase the utilization factor to Sense Rain Sensor xsect, on same housing, integration can better sensitive lens group or is had a structure of other functions.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a vehicle-mounted Sense Rain Sensor optical lens group system, is characterized in that, comprising:
Multiple lens T-R pair, described lens T-R is to comprising: diversing lens and receiver lens;
The diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
2. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 1, is characterized in that, lens T-R is 2,3 or 4 to group number.
3. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 2, is characterized in that, when lens T-R is to group number while being 4,4 groups of lens T-R are to the layout structure that is rectangle.
4. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 2, is characterized in that, when lens T-R is 4 to group number, 4 groups of lens T-R are to layout parallelogram structure.
5. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 1, is characterized in that, described lens are aspheric mirror.
6. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 5, is characterized in that, described aspheric mirror comprises: hyperbolic mirror, Fresnel Lenses.
7. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 1, is characterized in that, described multiple lens T-R is to having common reception lens.
8. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 7, is characterized in that, the right diversing lens of described multiple lens T-R is positioned on a circle or elliptical boundary, and described common reception lens are positioned at described circle or oval inner.
9. vehicle-mounted Sense Rain Sensor optical lens group system according to claim 1, is characterized in that, the optical axis of described lens and vehicle windscreen surface angle are 45 °.
10. a vehicle-mounted Sense Rain Sensor, is characterized in that, comprising:
Package casing;
Signal generation apparatus;
Signal receiving device;
Optical lens group system;
Control circuit, described control circuit connects described signal generation apparatus and signal receiving device, and is connected with wiper controller by communication bus, by wiper controller, drives Wiper motor;
Wherein, described optical lens group system comprises: multiple lens T-R pair, and described lens T-R is to comprising: diversing lens and receiver lens; The diversing lens that described multiple lens T-R is right is entirely not identical with receiver lens geometric center distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093550.3A CN102621600B (en) | 2012-03-31 | 2012-03-31 | Vehicle-mounted rain sensor and optical lens group system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093550.3A CN102621600B (en) | 2012-03-31 | 2012-03-31 | Vehicle-mounted rain sensor and optical lens group system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102621600A CN102621600A (en) | 2012-08-01 |
| CN102621600B true CN102621600B (en) | 2014-03-19 |
Family
ID=46561624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210093550.3A Active CN102621600B (en) | 2012-03-31 | 2012-03-31 | Vehicle-mounted rain sensor and optical lens group system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102621600B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20170115250A (en) * | 2016-04-07 | 2017-10-17 | 현대자동차주식회사 | Multi focus measuring rain sensor |
| CN106405685A (en) * | 2016-08-26 | 2017-02-15 | 无锡信大气象传感网科技有限公司 | Rainfall induction sensor |
| CN109916857B (en) * | 2017-12-11 | 2024-09-24 | 宇通客车股份有限公司 | Glass for identifying vehicle fog and fog detecting device |
| CN109916858A (en) * | 2017-12-11 | 2019-06-21 | 郑州宇通客车股份有限公司 | A kind of vehicle glass and the detection device that hazes |
| CN109116443B (en) * | 2018-10-17 | 2021-08-27 | 深圳南方德尔汽车电子有限公司 | Rainfall and sunlight sensor |
| US11623613B2 (en) * | 2019-03-20 | 2023-04-11 | Littelfuse, Inc. | Optical rain sensor |
| JP7337602B2 (en) * | 2019-08-28 | 2023-09-04 | キヤノン株式会社 | Imaging device, computer program and storage medium |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4463294A (en) * | 1983-03-25 | 1984-07-31 | Gibson Paul N | Windshield wiper control apparatus |
| US4676638A (en) * | 1983-03-31 | 1987-06-30 | Kabushiki Kaisha Tokai Rika Denki Seisakusho | Light-transmissible foreign object sensor |
| US4798956A (en) * | 1987-07-15 | 1989-01-17 | Hochstein Peter A | Electro-optical windshield moisture sensing |
| JPH06273602A (en) * | 1993-03-24 | 1994-09-30 | Matsushita Electric Ind Co Ltd | Contact image sensor |
| US5661303A (en) * | 1996-05-24 | 1997-08-26 | Libbey-Owens-Ford Co. | Compact moisture sensor with collimator lenses and prismatic coupler |
| US5898183A (en) * | 1997-10-16 | 1999-04-27 | Libbey-Owens-Ford Co. | Compact moisture sensor with efficient high obliquity optics |
| DE10060964A1 (en) * | 2000-12-06 | 2002-06-13 | Bosch Gmbh Robert | Rain sensor, in particular for a motor vehicle |
| CN201512256U (en) * | 2009-02-11 | 2010-06-23 | 郴州嘉鸿玻璃钢工程有限公司 | Fire-proof garbage bin body |
-
2012
- 2012-03-31 CN CN201210093550.3A patent/CN102621600B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102621600A (en) | 2012-08-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102621600B (en) | Vehicle-mounted rain sensor and optical lens group system | |
| CN201622345U (en) | Laser distance measurement device | |
| CN104566110A (en) | Lighting device including a light ray guide | |
| CN103727472A (en) | Lighting device for vehicle | |
| CN105570834A (en) | LED lens emitting light from plane and design method of LED lens | |
| US20240003739A1 (en) | Optical receiving device and optical sensing device | |
| CN202512256U (en) | Vehicular rain sensor and optical lens system thereof | |
| CN106353840A (en) | Rain sensor based on Fresnel lens | |
| CN116123485B (en) | Vehicle window panel, vehicle window panel assembly and vehicle | |
| CN203587495U (en) | Raindrop Sensing Device | |
| CN201662530U (en) | Raindrop inductor | |
| CN105372800A (en) | Double-spectrum optical imaging system and imaging equipment | |
| CN208832370U (en) | Light guide pattern structure | |
| CN106911385B (en) | A kind of optical antenna and LED visible light communication system | |
| CN212569180U (en) | Light path structure of rainfall sensor | |
| CN108819907B (en) | Light rainfall sensor and working method thereof | |
| CN103836811B (en) | Double-sided reflecting light collecting device | |
| CN103162226A (en) | Sunlight illuminating system used in tunnel | |
| CN207081840U (en) | Rain sensor | |
| CN103672720B (en) | Total internal reflection light collecting device | |
| JP6478290B2 (en) | Light | |
| CN210155354U (en) | High-sensitivity automobile rainfall sensor | |
| CN208506292U (en) | Rainfall sunlight sensor | |
| CN203232195U (en) | Light condensing device | |
| CN221326776U (en) | Mirror reflection light curtain |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 4 / F, building 1, No.14 Jiuxianqiao Road, Chaoyang District, Beijing 100020 Patentee after: Beijing Jingwei Hirain Technologies Co.,Inc. Address before: 100101 Beijing city Chaoyang District Anxiang Beili 11 B block 8 layer Patentee before: Beijing Jingwei HiRain Technologies Co.,Ltd. |
|
| CP03 | Change of name, title or address |