CN2519264Y - Distortion testing device for ultra-wide-angle lens - Google Patents
Distortion testing device for ultra-wide-angle lens Download PDFInfo
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- CN2519264Y CN2519264Y CN 01256866 CN01256866U CN2519264Y CN 2519264 Y CN2519264 Y CN 2519264Y CN 01256866 CN01256866 CN 01256866 CN 01256866 U CN01256866 U CN 01256866U CN 2519264 Y CN2519264 Y CN 2519264Y
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- 238000012360 testing method Methods 0.000 title abstract description 18
- 230000000007 visual effect Effects 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 10
- 235000012773 waffles Nutrition 0.000 claims description 9
- 230000003287 optical effect Effects 0.000 abstract description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
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Abstract
The utility model discloses a super wide angle lens distortion testing arrangement, stand big support (15) are "eight" style of calligraphy structure, and big support trompil central line passes through goniometer (2) centre of gyration, and leans on the limit placed in the middle. The utility model overcomes current distortion test instrument can only test specific overall dimension and weight and the also less shortcoming of optical system distortion of field of view scope. The distortion of the wide-angle optical lens with different focal lengths, view fields, appearance sizes and weights can be conveniently measured by replacing the short-focus sighting telescope, the two-dimensional adjustable platform and the V-shaped groove.
Description
The utility model is a kind of bugeye lens distortion proving installation, belongs to the picture element technical field of measurement and test of super wide angle imaging system camera lens.
Along with the development that boat is taken the photograph observation technology, the visual field of optical system is done bigger and bigger, and is also more and more higher to the requirement of image quality simultaneously, and the size of image deformation has determined the image quality of camera lens and the measuring accuracy of system to a great extent.Therefore, the distortion of the optical lens of super wide-angle is tested seemed especially important.And existing distortion proving installation relies on the angle measurement scale of tested camera self mostly, by the test of angle-measuring method realization to distortion.Perhaps all be to have manufactured and designed the special-purpose distortion tester of a cover for it specially when the distortion of optical measuring devices such as testing large optical system such as ballistic camera series.These devices all are to test the optical lens of a certain given configuration size, weight, visual field etc., and specificity is too strong, and the field range of measurement is generally also less, and complicated operation, costs an arm and a leg.For the bugeye lens visual field of designing voluntarily such as manufacturer production bugeye lenses such as Canon, Fuji and China R﹠D institution all more than 100 °, even reach 120 °, its volume is little, in light weight, profile is extremely irregular, self does not have any angle-measuring equipment yet, and prior-art devices is difficult to the requirement of adaptive testing.
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of visual field of both can having tested greater than the distortion of 90 ° bugeye lens, unrestricted to measured lens area of bed, weight and profile again, the measuring accuracy height, easy to operate, cheap, the bugeye lens distortion proving installation of observation intuitive and convenient.
The purpose of this utility model can realize by following technical measures.
Bugeye lens distortion proving installation mainly by vibration reduction platform, be placed on the big support of column on the vibration reduction platform, place two-dimensional adjustable platform on the big support of column, support the V-type groove, rotation transverse arm, the angular instrument that joins with the rotation transverse arm, be fixed on the rotation transverse arm and form in order to support short burnt gun sight and the microscopical three-dimensional trim holder of long working distance and waffle slab, lighting source etc.For reaching the purpose of this utility model, the big support of column is " eight " font structure; Keep to the side to be provided with between two parties in big support perforate center, its center line is by the angular instrument centre of gyration.
After employing is as above constructed, the utility model compared with prior art has the following advantages: when using this bugeye lens distortion proving installation testing lens, owing to used and had the big support of " eight " font column, and perforate is kept to the side between two parties, make the rotation transverse arm anglec of rotation on the angular instrument to surpass 90 °, satisfy the visual field greater than 90 ° bugeye lens distortion test request; This proving installation can be changed the gun sight of different focal and V-type groove, two-dimensional adjustable platform.Be not subjected to the restriction of tested lens focus, physical dimension and weight when therefore, using this device to test camera lens.Simultaneously, this device has used the waffle slab of non-equidistance symmetrical distribution groove, but visual field, full test camera lens edge distortion distribution situation.When using the utility model device to carry out the lens distortion test, only need the rotation angular instrument, aim at tested grid groove with short burnt gun sight, and can be from the angle of direct read test on the digital display case, utilize the waffle slab data of demarcating, but COMPREHENSIVE CALCULATING obtains the distortion value of camera lens each point.Therefore use this device simple and convenient.
Description of drawings is as follows:
Fig. 1 is broken section (vertically) figure of the structure of distortion proving installation embodiment.
Fig. 2 is big support (laterally) cut-open view.
Fig. 3 is the amplification assumption diagram of waffle slab mesh lines graphical distribution.
The utility model is described in further detail below in conjunction with drawings and Examples.
In Fig. 1, place angular instrument 2 on the vibration reduction platform 1, rotation transverse arm 3 connects and composes the test sighting system by three-dimensional trim holder 4 and short burnt gun sight 5 (long working distance microscope 5 ').One side of rotation transverse arm 3 is carried additionally balancing weight 16, with the suffered pressure of balance angular instrument, eliminates because the angle error that unbalance stress is introduced.Big support 15 is placed on the vibration reduction platform 1, its perforate center 17 is over against angular instrument 2 centres of gyration 18, place two-dimensional adjustable platform 6 above to support V-type groove 8, tested camera lens 7 is fixed on the V-type groove 8 by the press strip on the V-type groove 8, waffle slab 11 accurately places on the image planes of tested camera lens 7, evenly throws light on by being fixed on the lighting source 12 of being powered by D.C. regulated power supply 14 on the weight support 10.The pedal line that is suspended on the weight 9 on the weight support 10 is by angular instrument 2 centre of gyration lines.After the short burnt gun sight 5 of replacing is long working distance microscope 5 ' aiming pedal line, moves tested camera lens 7 by two-dimensional adjustable platform 6 and determine to fix tested camera lens 7 behind the entrance pupil centers.
As shown in Figure 2, big support 15 columns are " eight " font, keep to the side between two parties over against the perforate of angular instrument 2 centres of gyration, to guarantee to rotate the field range requirement that 3 angles that can turn over of transverse arm satisfy tested camera lens 7.
Be illustrated in figure 3 as the amplification assumption diagram of the mesh lines graphical distribution on the waffle slab 11.The mesh lines figure is made up of the cross curve of quadrature, indicates O, A, B, C, the position of D printed words to determine to be tested.Mesh lines spacing unequal-interval from the inside to the outside is symmetrically distributed.Groove in 0.7 visual field spacing more greatly, 0.7 visual field olo is littler, can increase the distribution number strong point of measured lens head edge visual field distortion.The mesh lines spacing must be before test gauging calibration.
During test, change short burnt gun sight 5, suitably adjust three-dimensional trim holder 4, rotation angular instrument 2 by line A-B on the gun sight 5 aiming waffle slabs 11 or C-D, rotates tested camera lens 7 to determine that boresight overlaps with A-B or C-D.After the aiming grid element center, angular instrument 2 makes zero, and begins line of sight one by one, and from the angular instrument digital display case 13 the reading angular value, till the point of having surveyed required direction.
Claims (2)
1, a kind of bugeye lens distortion proving installation, mainly by vibration reduction platform 1, be placed on the big support of column on the vibration reduction platform, place two-dimensional adjustable platform 6 on the big support of column, support V-type groove 8, rotation transverse arm 3, the angular instrument 2 that joins with the rotation transverse arm, be fixed on the rotation transverse arm in order to support short burnt gun sight 5 and long working distance microscope 5 ' three-dimensional trim holder 4 and waffle slab 11, lighting source 12 etc. form, it is characterized in that: the big support 15 of column is " eight " font structure; Big support perforate keeps to the side to be provided with between two parties, and its center line 17 is by angular instrument 2 centres of gyration 18.
2, bugeye lens distortion proving installation as claimed in claim 1 or 2, it is characterized in that: the mesh lines of waffle slab (11) is made up of the groove of the pairwise orthogonal onboard that distributes, and ruling span does not wait, and the spacing in 0.7 visual field is greater than 0.7 visual field olo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256866 CN2519264Y (en) | 2001-12-11 | 2001-12-11 | Distortion testing device for ultra-wide-angle lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01256866 CN2519264Y (en) | 2001-12-11 | 2001-12-11 | Distortion testing device for ultra-wide-angle lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2519264Y true CN2519264Y (en) | 2002-10-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01256866 Expired - Fee Related CN2519264Y (en) | 2001-12-11 | 2001-12-11 | Distortion testing device for ultra-wide-angle lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2519264Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673043B (en) * | 2008-09-10 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Wide-angle distortion testing system and method |
| CN103424243A (en) * | 2013-08-19 | 2013-12-04 | 西安应用光学研究所 | Target system for distortion test |
| CN103499433A (en) * | 2013-09-30 | 2014-01-08 | 中国科学院西安光学精密机械研究所 | Calibration device and method for distortion of f-theta optical system |
| CN104330241A (en) * | 2014-10-28 | 2015-02-04 | 秦皇岛视听机械研究所 | Universal digital projection/or reproduction fish-eye lens detection system |
| CN107607298A (en) * | 2017-09-27 | 2018-01-19 | 马彪 | The performance measurement method and its detection device of a kind of optical lens |
-
2001
- 2001-12-11 CN CN 01256866 patent/CN2519264Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673043B (en) * | 2008-09-10 | 2012-08-29 | 鸿富锦精密工业（深圳）有限公司 | Wide-angle distortion testing system and method |
| CN103424243A (en) * | 2013-08-19 | 2013-12-04 | 西安应用光学研究所 | Target system for distortion test |
| CN103424243B (en) * | 2013-08-19 | 2015-11-25 | 西安应用光学研究所 | Target system for distortion test |
| CN103499433A (en) * | 2013-09-30 | 2014-01-08 | 中国科学院西安光学精密机械研究所 | Calibration device and method for distortion of f-theta optical system |
| CN104330241A (en) * | 2014-10-28 | 2015-02-04 | 秦皇岛视听机械研究所 | Universal digital projection/or reproduction fish-eye lens detection system |
| CN104330241B (en) * | 2014-10-28 | 2017-06-20 | 秦皇岛视听机械研究所 | Universal digital is projected or projection fish eye lens detecting system |
| CN107607298A (en) * | 2017-09-27 | 2018-01-19 | 马彪 | The performance measurement method and its detection device of a kind of optical lens |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |