CN207396016U - A kind of Stray Light Test device of camera lens full filed - Google Patents
A kind of Stray Light Test device of camera lens full filed Download PDFInfo
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- CN207396016U CN207396016U CN201721270601.XU CN201721270601U CN207396016U CN 207396016 U CN207396016 U CN 207396016U CN 201721270601 U CN201721270601 U CN 201721270601U CN 207396016 U CN207396016 U CN 207396016U
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- guide rail
- camera lens
- test device
- horizontal guide
- stray light
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Abstract
The utility model is related to grating test technical fields, disclose a kind of Stray Light Test device of camera lens full filed, which includes：Integrating sphere, fan-shaped guide rail, horizontal guide rail, signal processing system and angle control system, integrating sphere includes falling into photosphere, light source ball and the target plate being installed between sunken photosphere and light source ball, one end of horizontal guide rail is rotationally connected with the center of circle of fan-shaped guide rail, the other end is slidably connected to fan-shaped guide rail, collimation lens is installed on horizontal guide rail, camera lens and detector to be measured, the light that light source ball is sent passes through collimation lens successively, camera lens and detector to be measured, detector is connected with signal processing system, angle control system is connected with horizontal guide rail, slip angle of the controlled level guide rail on fan-shaped guide rail.The Stray Light Test device of the camera lens full filed of the utility model can obtain the different visual field of camera lens and cover entire field range comprehensively, so as to accurately measure the coefficient of stray light under each monoscopic, have a vast market prospect.
Description
Technical field
The utility model is related to grating test technical field, the Stray Light Test dress of more particularly to a kind of camera lens full filed
It puts.
Background technology
With the development of society, people's living standard is continuously improved, digital camera, mobile phone lamp photographing device are by people
It widely uses, when taking pictures, the control on stray light is to influence a key factor of image quality, perfectly controls stray light
With regard to a secondary clear, sharp keen picture can be obtained, when the stray light refers to that camera lens forms the real image of object, except imaging light it
Outside, there are other non-imaged light to converge in image planes, by the test to stray light us can be made to understand light camera lens
Interior stray light distribution situation, so as to pointedly solve the influence that stray light brings overall performance.Existing spuious flash ranging
Trial assembly, which is put, to be had the following problems：Device under test structure limits, and is only capable of the stray light of measurement optical lens field of view center, it is impossible to fill
Divide the integral status of reflection optical lens veiling glare rejection ability.
Utility model content
In view of the deficiencies of the prior art, the utility model is intended to provide a kind of design rationally, can measure entire visual field, surveys
Try precision height, the high convex grating diffraction efficiency test system of testing efficiency.
To achieve the above object, the utility model adopts the following technical solution：
A kind of Stray Light Test device of camera lens full filed, including：Integrating sphere, fan-shaped guide rail, horizontal guide rail, signal processing
System and angle control system, the integrating sphere include falling into photosphere, light source ball and be installed on the sunken photosphere and light source ball it
Between target plate, one end of the horizontal guide rail is rotationally connected with the center of circle of the fan-shaped guide rail, and the other end is slidably connected to institute
State fan-shaped guide rail, collimation lens, camera lens to be measured and detector be installed on the horizontal guide rail, the light that the light source ball is sent according to
It is secondary to be connected by the collimation lens, camera lens to be measured and detector, the detector with the signal processing system, the angle
Control system is connected with the horizontal guide rail, controls slip angle of the horizontal guide rail on the fan-shaped guide rail.
As further improvement of the utility model, the test device further includes collimation lens, and the collimation lens is consolidated
Dingan County enters the camera lens to be measured loaded on the light that on the horizontal guide rail, the light source ball is sent after the collimation lens.
As further improvement of the utility model, the test device further includes iris diaphgram, and the light source ball is sent
Light after the iris diaphgram enter the detector.
As further improvement of the utility model, the angle control system includes electric rotating machine, encoder and coding
Controller, the electric rotating machine are connected with the horizontal guide rail, and the encoder is connected with the electric rotating machine, the coding control
Device processed is connected with the encoder.
As further improvement of the utility model, the signal processing system is picoammeter or oscillograph.
As further improvement of the utility model, one end of the horizontal guide rail is rotationally connected with the fan by bolt
The center of circle of shape guide rail.
As further improvement of the utility model, the collimation lens is fixedly mounted by pedestal and is led with the level
Rail is connected between the collimation lens and the pedestal by extension bar.
As further improvement of the utility model, the camera lens to be measured is fixedly mounted by pedestal and is led with the level
Rail is connected between the camera lens to be measured and the pedestal by extension bar.
As further improvement of the utility model, the detector is fixedly mounted by pedestal and the horizontal guide rail,
It is connected between the detector and the pedestal by extension bar.
As further improvement of the utility model, the pedestal is fixedly installed in the level by countersunk head screw and leads
Rail.
Compared with the prior art, the Stray Light Test device of the camera lens full filed of the utility model uses heavy caliber integrating sphere
Light source, the surface uniformity of emergent light are protected, and can reduce the measurement error of heterogeneity introducing；In simultaneously in test device
Collimation lens is added in, can realize the infinite distance imaging to object, is measured suitable for the coefficient of stray light of telephoto lens；Water is used again
The combination of level gauge and fan-shaped guide rail designs, and can obtain the different visual field of camera lens and cover entire field range comprehensively, so as to
The coefficient of stray light under each monoscopic is accurately measured, testing efficiency is high, has a vast market prospect and application prospect, is suitble to big
Area is promoted the use of.
Above description is only the general introduction of technical solutions of the utility model, in order to better understand the skill of the utility model
Art means, and being practiced according to the content of specification, and in order to allow the above and other purpose, feature of the utility model
It can be clearer and more comprehensible with advantage, it is special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the structure diagram of the Stray Light Test device of camera lens full filed in the utility model embodiment；
Fig. 2 is the structure diagram of integrating sphere in the utility model embodiment；
Fig. 3 is the structure diagram of horizontal guide rail in the utility model embodiment；
Fig. 4 is the structure diagram of convergent lens in the utility model embodiment；
Fig. 5 is the structure diagram of camera lens to be measured in the utility model embodiment；
Fig. 6 is the structure diagram of detector in the utility model embodiment.
Description of symbols：10th, integrating sphere；101st, photosphere is fallen into；102nd, light source ball；103rd, light-emitting window；104th, target plate；20th, water
Level gauge；201st, clear opening；202nd, countersunk head threaded hole；203rd, bolt；204th, countersunk head screw；30th, fan-shaped guide rail；40th, encoder；
50th, collimation lens part；501st, collimation lens pedestal；502nd, collimation lens fixed screw；503rd, collimation lens extension bar；504th, it is accurate
Straight lens；60th, camera lens part to be measured；601st, lens base；602nd, camera lens fixed screw；603rd, camera lens supporting rack；604th, it is to be measured
Camera lens；70th, explorer portion；701st, detector base；702nd, detector fixed screw；703rd, detector extension bar；704th, it is variable
Diaphragm；705th, detector；80th, signal processing system；90th, coding controller.
Specific embodiment
In the following, with reference to attached drawing and specific embodiment, the utility model is described further：
As shown in figures 1 to 6, for the utility model camera lens full filed Stray Light Test device, the device include integrating sphere
10th, horizontal guide rail 20, fan-shaped guide rail 30, encoder 40, collimation lens part 50, camera lens part 60 to be measured, explorer portion 70,
Signal processing system 80, coding controller 90 and electric rotating machine, integrating sphere 10 include falling into photosphere 101, light source ball 102 and installation
In falling into the target plate 104 between photosphere 101 and light source ball 102, the inner wall coating extinction paint and gauge without light source of photosphere 101 are fallen into, is formed
One blackbody chamber；The inner wall of light source ball 102 coats diffusive white reflective material and is equipped with light source, and target plate 104 is intermediate hollow out
Metallic plate (common for aluminium alloy, surface carries out blackening process), light source ball 102 is equipped with light-emitting window 103, on horizontal guide rail 20
Equipped with clear opening 201 and countersunk head threaded hole 202, horizontal guide rail 20 includes bolt 203 and countersunk head screw 204, horizontal guide rail 20
One end is rotationally connected with the center of circle of the fan-shaped guide rail 30 by bolt 203 and clear opening 201, and the other end is slidably connected to sector
On guide rail 30, encoder 40 is fixedly installed in fan-shaped guide rail 30, and electric rotating machine is connected with horizontal guide rail 20, encoder 40 with it is above-mentioned
Electric rotating machine connects, and coding controller 90 is connected with encoder 40, controls the rotation of above-mentioned electric rotating machine, so as to which controlled level is led
The rotation angle of rail 20；
Collimation lens part 50 includes collimation lens pedestal 501, collimation lens fixed screw 502, collimation lens extension bar 503
With collimation lens 504, collimation lens 504 is fixedly connected on standard by collimation lens fixed screw 502 and collimation lens extension bar 503
Collimation lens pedestal 501 is fixed on horizontal guide rail 20 by straight lens mount 501, countersunk head screw 204 by countersunk head threaded hole 202,
And pass through the height of collimation lens fixed screw 502 and the adjusting collimation lens 504 of collimation lens extension bar 503；
Camera lens part 60 to be measured includes lens base 601, camera lens fixed screw 602, camera lens supporting rack 603 and camera lens to be measured
604, camera lens 604 to be measured is fixedly connected on lens base 601, countersunk head spiral shell by camera lens fixed screw 602 and camera lens supporting rack 603
Lens base 601 is fixed on horizontal guide rail 20 by silk 204 by countersunk head threaded hole 202, and passes through camera lens fixed screw 602 and mirror
Head support 603 adjusts the height of camera lens 604 to be measured；
Explorer portion 70 include detector base 701, detector fixed screw 702, detector extension bar 703, can darkening
Door screen 704 and detector 705, detector 705 are fixedly installed in detection by detector fixed screw 702 and detector extension bar 703
Device pedestal 701, detector base 701 is fixed on horizontal guide rail 20 by countersunk head screw 204 by countersunk head threaded hole 202, and is passed through
Detector fixed screw 702 and detector extension bar 703 adjust the height of detector 705, and iris diaphgram 704 is installed on detector
Before 705 photosurface, detector 705 is connected with signal processing system 80；
The light that light source ball 102 is sent collimates after light-emitting window 103 into collimation lens 504, wherein, collimation lens 504
Focal length matched with the internal diameter of light source ball 102, target plate 104 is located on the focal plane of collimation lens 504, realizes camera lens to be measured
The infinite distance imaging of 604 pairs of targets.Then, the light after collimation is imaged in by camera lens 604 to be measured on detector 705, wherein, it can
Before change diaphragm 704 is fixed on the photosurface of detector 705, the diameter of iris diaphgram 704, can with optical system film size size variation
Even light action of the bright area light to blackspot picture can be prevented by becoming diaphragm 704.Detector 705 is connected with signal processing system 80, can
Directly the corresponding current value of illumination is obtained from signal processing system 80.
Blackspot is placed on target plate 104, the blackspot size according to used in determining 604 film size size of camera lens to be measured, root
According to the spuious light measurement national standard GBT 10988-2009 of optical system understand, using black-spot method measure coefficient of stray light, blackspot picture it is straight
Footpath should be system under test (SUT) film size cornerwise 1/10, it is known that 504 focal length f of collimation lens1, 604 focal length f of camera lens to be measured2And film size
The 1/10 of size is y, can be according to similar triangles formulaCalculating required blackspot size isAs
Metallic plate center drilling circular diameter, rest part coat the diffusive white reflective material as light source ball inner wall.Wherein, hollow out
Metallic plate is to provide blackspot, and target plate, that is, hickie of non-hollow out is to provide corresponding bright area.Blackspot target imaging at this time
In the field of view center region of camera lens 604 to be measured, the angle output indicating value of encoder 40 at this time is reset, measuring center field conditions
The current value of lower illumination, is denoted asBlackspot is replaced with hickie, the current value of same position is measured, is denoted as E0；It is hidden with black paperboard
Keep off camera lens 604 to be measured, 705 background noise current value e of record detector0, by electric rotating machine horizontal guide rail 20 is driven to arrive afterwards
The field of view angle of required test measures and records blackspot illumination current value successivelyHickie illumination current value EiAnd background noise
Current value ei, and record data.According to coefficient of stray light definitionCalculate the veiling glare system under each visual field
Number.
Compared with the prior art, the Stray Light Test device of the camera lens full filed of the utility model uses heavy caliber integrating sphere
Light source, the surface uniformity of emergent light are protected, and can reduce the measurement error of heterogeneity introducing；In simultaneously in test device
Collimation lens is added in, can realize the infinite distance imaging to object, is measured suitable for the coefficient of stray light of telephoto lens；Water is used again
The combination of level gauge and fan-shaped guide rail designs, and can obtain the different visual field of camera lens and cover entire field range comprehensively, so as to
The coefficient of stray light under each monoscopic is accurately measured, testing efficiency is high, has a vast market prospect and application prospect, is suitble to big
Area is promoted the use of.
For those skilled in the art, technical solution that can be as described above and design are made other each
Kind is corresponding to be changed and deforms, and all these change and deform the guarantor that should all belong to the utility model claims
Within the scope of shield.
Claims (10)
1. a kind of Stray Light Test device of camera lens full filed, which is characterized in that including：Integrating sphere, fan-shaped guide rail, level are led
Rail, signal processing system and angle control system, the integrating sphere include falling into photosphere, light source ball and are installed on the sunken photosphere
Target plate between light source ball, one end of the horizontal guide rail are rotationally connected with the center of circle of the fan-shaped guide rail, and the other end is slided
It is dynamic to be connected to the fan-shaped guide rail, collimation lens, camera lens to be measured and detector, the light source ball are installed on the horizontal guide rail
Successively by the collimation lens, camera lens to be measured and detector, the detector connects the light sent with the signal processing system
It connects, the angle control system is connected with the horizontal guide rail, controls slip of the horizontal guide rail on the fan-shaped guide rail
Angle.
2. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The test device is also wrapped
Collimation lens is included, the collimation lens is fixedly installed on the horizontal guide rail, and the light that the light source ball is sent passes through the standard
Enter the camera lens to be measured after straight lens.
3. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The test device is also wrapped
Iris diaphgram is included, the light that the light source ball is sent enters the detector after the iris diaphgram.
4. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The angle control system
Including electric rotating machine, encoder and coding controller, the electric rotating machine is connected with the horizontal guide rail, the encoder and institute
Electric rotating machine connection is stated, the coding controller is connected with the encoder.
5. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The signal processing system
For picoammeter or oscillograph.
6. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The one of the horizontal guide rail
End is rotationally connected with the center of circle of the fan-shaped guide rail by bolt.
7. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The collimation lens passes through
Pedestal is fixedly mounted and the horizontal guide rail, is connected between the collimation lens and the pedestal by extension bar.
8. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The camera lens to be measured passes through
Pedestal is fixedly mounted and the horizontal guide rail, is connected between the camera lens to be measured and the pedestal by extension bar.
9. the Stray Light Test device of camera lens full filed as described in claim 1, it is characterised in that：The detector passes through bottom
Seat is fixedly mounted and the horizontal guide rail, is connected between the detector and the pedestal by extension bar.
10. the Stray Light Test device of the camera lens full filed as described in claim 7-9 is any, it is characterised in that：The pedestal
The horizontal guide rail is fixedly installed in by countersunk head screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270601.XU CN207396016U (en) | 2017-09-29 | 2017-09-29 | A kind of Stray Light Test device of camera lens full filed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721270601.XU CN207396016U (en) | 2017-09-29 | 2017-09-29 | A kind of Stray Light Test device of camera lens full filed |
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| Publication Number | Publication Date |
|---|---|
| CN207396016U true CN207396016U (en) | 2018-05-22 |
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ID=62330942
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| CN201721270601.XU Active CN207396016U (en) | 2017-09-29 | 2017-09-29 | A kind of Stray Light Test device of camera lens full filed |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760248A (en) * | 2018-05-29 | 2018-11-06 | Oppo广东移动通信有限公司 | Camera module glare testing device |
| CN109141404A (en) * | 2018-08-14 | 2019-01-04 | 哈尔滨工业大学 | Spherical veiling glare inhibits system around the adjustable star sensor of openings of sizes |
| CN111610003A (en) * | 2020-05-28 | 2020-09-01 | 歌尔光学科技有限公司 | Lens stray light testing device and method |
| CN113661443A (en) * | 2019-04-02 | 2021-11-16 | 伟摩有限责任公司 | Stray light test station |
-
2017
- 2017-09-29 CN CN201721270601.XU patent/CN207396016U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760248A (en) * | 2018-05-29 | 2018-11-06 | Oppo广东移动通信有限公司 | Camera module glare testing device |
| CN109141404A (en) * | 2018-08-14 | 2019-01-04 | 哈尔滨工业大学 | Spherical veiling glare inhibits system around the adjustable star sensor of openings of sizes |
| CN109141404B (en) * | 2018-08-14 | 2021-09-17 | 哈尔滨工业大学 | Opening-size-adjustable star sensor surrounding spherical stray light suppression system |
| CN113661443A (en) * | 2019-04-02 | 2021-11-16 | 伟摩有限责任公司 | Stray light test station |
| US11635326B2 (en) | 2019-04-02 | 2023-04-25 | Waymo Llc | Stray-light testing station |
| US11933666B2 (en) | 2019-04-02 | 2024-03-19 | Waymo Llc | Stray-light testing station |
| CN111610003A (en) * | 2020-05-28 | 2020-09-01 | 歌尔光学科技有限公司 | Lens stray light testing device and method |
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