CN201438143U - On-vehicle lens integrated measuring equipment - Google Patents
On-vehicle lens integrated measuring equipment Download PDFInfo
- Publication number
- CN201438143U CN201438143U CN2009201245814U CN200920124581U CN201438143U CN 201438143 U CN201438143 U CN 201438143U CN 2009201245814 U CN2009201245814 U CN 2009201245814U CN 200920124581 U CN200920124581 U CN 200920124581U CN 201438143 U CN201438143 U CN 201438143U
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- image sensor
- cmos image
- vehicle lens
- lens
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Abstract
The utility model discloses on-vehicle lens integrated measuring equipment which belongs to the measuring equipment of an optical lens. The on-vehicle lens integrated measuring equipment is composed of a uniform light source device, a testing scale plate, a CMOS image sensor, a testing device, a computer system, a display device and the like. The utility model mainly improves the uniform light source device, the testing scale plate and the testing device. The improved uniform light source device is suitable for not only measuring an on-vehicle lens with a viewing angle smaller than 180 DEG, but also measuring the large-distortion on-vehicle lens with the viewing angle larger than 180 DEG; furthermore, the special testing scale plate can be suitable for measuring optical transfer function MTF parameters, focal length parameters, viewing angle parameters and distortion parameters at the same time; in addition, a focusing handle on the testing device is used for manually adjusting the lifting of a lens universal fixture and the CMOS image sensor is arranged in an adjustable manner, which can provide effective assurance for the measuring stability of the entire measuring equipment, increase the measuring efficiency, and realize integration of the on-vehicle lens measuring equipment.
Description
Technical field
The utility model relates to a kind of measuring equipment of optical lens, is meant the integrated measurement equipment of a kind of on-vehicle lens specifically.
Background technology
General traditional projection pattern and the modern optical transfer function MTF of adopting of measuring method for optical lens measures at present, traditional projection pattern is that p-wire is aimed at drawing to the certain line of target, be amplified to screen via camera lens projection to be measured, the tester goes the line of view screen to drawing with human eye, and judge which kind of highest frequency line to differentiating, the analytic ability that can draw this lens imaging position is right for how many lines.Yet human eye is limited to the right distinguishing ability of line, and because of the people has individual difference, judges the often bigger personal error of existence with human eye.
And modern optical transfer function MTF metering system has been acknowledged as that present evaluation optical system imaging quality is more objective, one of effective best method, in the image quality evaluation that can be widely used in the process control of design of Optical System and optical imaging system and the monitoring.The method of this measurement optical transfer function MTF has a variety of, and difference is arranged all, scanning method for example, interferometric method, pairing comparision etc., but at present optical transfer function MTF measuring equipment generally can only be measured field angle less than 90 ° on-vehicle lens in the industry, and for big visual field, the on-vehicle lens of big distortion, because the distortion on the limit is big, image gross distortion after the imaging, have only some laboratory equipments to measure, but can not measure the on-vehicle lens that the visual field surpasses 180 °, simultaneously, general optical transfer function MTF measuring equipment is focal length measurement simultaneously all, parameter such as field angle and optical distortion, more can't be integrated in the same measuring equipment, and there is the low defective of efficiency of measurement in the optical transfer function MTF measuring equipment of some reluctantly integrated these function, is difficult to be suitable for on-the-spot large-scale efficient measurement the in workshop.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the defective of prior art and provides a kind of on-vehicle lens that not only is fit to neglect the rink corner to measure, also be fit to big field angle, big distortion on-vehicle lens measurement, and can measure optical transfer function MTF parameter, focal length parameter, field angle parameter and distortion parameter simultaneously, the integrated measurement equipment of the on-vehicle lens that efficiency of measurement is high.
Technical matters of the present utility model is achieved through the following technical solutions:
The integrated measurement equipment of a kind of on-vehicle lens comprises uniform source of light device, test chart, cmos image sensor, proving installation, computer system, it is characterized in that:
A, described uniform source of light device comprise backplate, top panel and two body structures that side panel surrounded, and wherein top panel and two side panels are the uniform source of light plate;
B, described test chart be arranged on the top panel inside surface or be arranged on top panel simultaneously and two side panel inside surfaces on;
C, described proving installation comprise base, and this base is provided with cmos image sensor mounting platform, focusing platform and PCB wiring board; The cmos image sensor of adjustable positions is installed on the described cmos image sensor mounting platform, and this cmos image sensor is electrically connected with the PCB wiring board; Described focusing platform is provided with the general tool of camera lens and regulates the focusing handle of the general tool lifting of this camera lens.
General tool of the camera lens of described proving installation and cmos image sensor are isolating construction.
Be provided with the set screw of regulating the cmos image sensor installation site between described cmos image sensor and the cmos image sensor mounting platform.
The tank floor of described uniform source of light device is provided with bottom panel.
Compared with prior art, the utility model is to constituting the uniform source of light device of on-vehicle lens measuring equipment, test chart and proving installation all improve, uniform source of light device after the improvement not only is fit to measure less than 180 ° the on-vehicle lens of neglecting the rink corner, also be fit to big field angle greater than 180 °, big distortion on-vehicle lens is measured, and special test chart can be applicable to measures optical transfer function MTF parameter simultaneously, the focal length parameter, field angle parameter and distortion parameter, the elevating movement that is converted into the general tool of camera lens and the adjustable installation of cmos image sensor and the focusing handle manual adjustments that adopts on the proving installation rotatablely moves, can provide effective assurance for the whole measuring equipment measuring stability, and the raising efficiency of measurement, realize the integrated of on-vehicle lens measuring equipment.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is for testing on-vehicle lens horizontal field of view angle less than the test chart on 150 ° the top panel.
Fig. 3 is for testing on-vehicle lens horizontal field of view angle greater than the test chart on 150 ° the top panel.
Fig. 4 is for testing on-vehicle lens horizontal field of view angle greater than the test chart on two side panels of 150 °.
Fig. 5 is uniform source of light and test chart scheme of installation.
Fig. 6 is the cut-open view of proving installation.
Fig. 7 is the stereographic map of proving installation.
Fig. 8 is a cmos image chip high speed data sampling schematic diagram.
Embodiment
To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.
As Fig. 1～shown in Figure 8,11. bottom panels, 12. proving installation, 13. backplate, 14. top panel, 15. side panel, 16. computer system, 21.22.23.31.32.41. black patch, 24. diagonal field of view angle, 25. vertical field of view angle, 33. vertical field of view angle and distortion, 42. horizontal field of view angle and distortion, 51. light-emitting area, 52. adhesive tape, 53. test chart, 61. base, 62.CMOS imageing sensor mounting platform, 63. focusing platform, 64.PCB circuit board, 65.CMOS imageing sensor, 66. on-vehicle lens, 67. the general tool of camera lens, 68. focusing handle, 69. set screw, 70. connecting line.
The integrated measurement equipment of a kind of on-vehicle lens mainly is made of uniform source of light device, test chart 53, cmos image sensor 65, proving installation 12, the department of computer science display of unifying.
Described uniform source of light device is that this tank floor also can be provided with bottom panel 11 according to actual conditions by backplate 13, top panel 14 and two side panel 15 these four body structures that face constitutes, and wherein top panel 14 and two side panels 15 are the uniform source of light plate.This uniform source of light device not only is suitable for measuring field angle less than 180 ° on-vehicle lens, is suitable for too measuring the on-vehicle lens that field angle surpasses 180 °, and can fully satisfies on-the-spot large-scale efficient measurement the in workshop.
Described test chart 53 is a kind of special targets that can measure optical transfer function MTF parameter, focal length parameter, field angle parameter and distortion parameter simultaneously, and can select to install according to the measurement requirement of the different visual fields of on-vehicle lens, for example for the camera lens of horizontal field of view angle, only need to measure pasting test chart 53 through adhesive tape 52 on the light-emitting area 51 of end face uniform source of light plate inside surface less than 150 °; And for the on-vehicle lens of horizontal field of view angle greater than 150 °, need on the light-emitting area 51 of end face and two side uniform source of light plate inside surfaces test chart 53 on adhesive tape 52 is all pasted, these test charts mainly provide the required test pattern of measurement on-vehicle lens optical characteristics.
Described cmos image sensor 65 is to receive the optical signalling of uniform source of light irradiation test chart 53 by on-vehicle lens to be measured, and converts electric signal to and be transferred to computer system.Described computer system receives the electric signal of cmos image sensor 65, calculates on-vehicle lens and requires the various optical characteristics datas measured, compares with the testing standard of importing simultaneously, thereby judges the optical property of camera lens fast.Described display is used to the camera lens test data and the curve distribution that show that computer system analysis goes out.
Described proving installation 12 is as Fig. 6, shown in Figure 7, by being fixed on the bottom panel 11 of measuring equipment with glue after the dress school adjustment of position, and connects with computer system 16 by the usb signal line.This proving installation comprises base 61, the base screwing is connected and fixed cmos image sensor mounting platform 62 and focusing platform 63, also be provided with PCB circuit board 64, described cmos image sensor mounting platform is provided with the cmos image sensor 65 that connects through set screw 69, can regulate the depth of parallelism and the degree of eccentricity of cmos image sensor, cmos image sensor 65 is electrically connected PCB circuit board 64 through connecting line 70; Described focusing platform 63 is provided with the general tool 67 of camera lens and regulates the focusing handle 68 of the general tool lifting of camera lens, on-vehicle lens to be measured is placed on the general tool 67 of camera lens, can carry out the replacing of difformity on-vehicle lens through the general tool of camera lens, and rotation focusing handle is realized the upper and lower focusing of on-vehicle lens.The general tool 67 of this camera lens adopts separate design with cmos image sensor 65, helps carrying out the dress school adjustment of measuring equipment and changing general tool fast, improves equipment interoperability.
The test of optical transfer function MTF parameter is calculated by catching the relevant position black patch in the described on-vehicle lens, be to be used to test on-vehicle lens horizontal field of view angle as shown in Figure 2 less than 150 ° test chart, wherein black patch 21 is central optical image resolving rate and focal length, is mainly used in test visual field, vehicle-mounted optical center mtf value; Black patch 22 is 0.5 visual field image resolving rates, is mainly used in test on-vehicle lens 0.5 visual field mtf value; Black patch 23 is 0.8 visual field image resolving rates, is mainly used in test on-vehicle lens 0.8 visual field mtf value.And Fig. 3, shown in Figure 4 be to be used for the testing level field angle greater than the test chart on the test chart on the top panel of 150 ° of on-vehicle lens and two side panels, wherein black patch 31 is central optical image resolving rate and focal length, is mainly used in the vehicle-mounted optical center of test mtf value; Black patch 32 is upright position optics image resolving rates, is mainly used in test on-vehicle lens 0.5 visual field mtf value; Black patch 41 is horizontal level optics image resolving rates, is mainly used in test on-vehicle lens 0.8 visual field mtf value.And 0.5 or 0.8 visual field test position can be adjusted according to practical measurement requirement.The on-vehicle lens distortion of considering big visual field simultaneously is bigger, and shape concrete when making black patch is to determine according to the imaging effect of reality with size, and effective like this having avoided distorted to catching the influence of algorithm.
The measurement of described on-vehicle lens mid-focal length parameter is respectively by center black patch 21 in Fig. 2 and Fig. 3 test chart and black patch 31, realizes through optical imagery and computed in software.And when measuring on-vehicle lens field angle parameter and distortion parameter, for the on-vehicle lens of horizontal field of view angle less than 150 °, by diagonal field of view angle 24 in Fig. 2 test chart and vertical field of view angle 25, realize through optical imagery and software seizure calculating, for the on-vehicle lens of horizontal field of view angle greater than 150 °, by the horizontal field of view angle in the vertical field of view angle in the test chart on Fig. 3 top panel and distortion 33, the test chart on two side panels of Fig. 4 with distort 42, catch to calculate through optical imagery and software and realize.
The utility model adopts the high-speed cmos image collection chip that light signal is converted to electric signal, pack through the CY7C68013A chip, pass to computing machine by high speed USB, and by software processing, as shown in Figure 8, image transmission and processing speed guarantee more than 10FRAME/S, provide high speed stable data source for detecting vehicle-mounted lens data, guarantee 4 seconds/test speed.This measuring equipment also possesses CMOS self-adapted white balance lock function, after uniform source of light wore out with service time, the brightness meeting weakens to some extent, can cause influence to image, but after the each startup of equipment, promptly can come the inching time shutter according to the whole power of light automatically, make brightness of image reach design load, with the serviceable life of increase equipment consumptive material, and raising equipment is to the adaptive faculty of various light environments.
Claims (4)
1. the integrated measurement equipment of on-vehicle lens comprises uniform source of light device, test chart (53), cmos image sensor (65), proving installation (12), computer system (16), it is characterized in that:
A, described uniform source of light device comprise the body structure that backplate (13), top panel (14) and two side panels (15) are surrounded, and wherein top panel and two side panels are the uniform source of light plate;
B, described test chart (53) be arranged on top panel (14) inside surface or be arranged on top panel simultaneously and two side panels (15) inside surface on;
C, described proving installation comprise base (61), and this base is provided with cmos image sensor mounting platform (62), focusing platform (63) and PCB wiring board (64); The cmos image sensor (65) of adjustable positions is installed on the described cmos image sensor mounting platform, and this cmos image sensor is electrically connected with the PCB wiring board; Described focusing platform (63) is provided with the general tool of camera lens (67) and regulates the focusing handle (68) of the general tool lifting of this camera lens.
2. the integrated measurement equipment of on-vehicle lens according to claim 1 is characterized in that the general tool of camera lens (67) of described proving installation (12) and cmos image sensor (65) are isolating construction.
3. the integrated measurement equipment of on-vehicle lens according to claim 1 is characterized in that being provided with between described cmos image sensor (65) and the cmos image sensor mounting platform (62) set screw (69) of regulating the cmos image sensor installation site.
4. according to the integrated measurement equipment of each described on-vehicle lens of claim 1～3, it is characterized in that the tank floor of described uniform source of light device is provided with bottom panel (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201245814U CN201438143U (en) | 2009-07-14 | 2009-07-14 | On-vehicle lens integrated measuring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201245814U CN201438143U (en) | 2009-07-14 | 2009-07-14 | On-vehicle lens integrated measuring equipment |
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| Publication Number | Publication Date |
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| CN201438143U true CN201438143U (en) | 2010-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201245814U Expired - Lifetime CN201438143U (en) | 2009-07-14 | 2009-07-14 | On-vehicle lens integrated measuring equipment |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987806A (en) * | 2015-02-02 | 2016-10-05 | 宁波舜宇光电信息有限公司 | Device and method for testing turning lens |
| CN106950039A (en) * | 2017-05-05 | 2017-07-14 | 江西高瑞光电股份有限公司 | A kind of digital camera lens detector of microspur |
| CN107290132A (en) * | 2017-05-27 | 2017-10-24 | 惠州市德赛自动化技术有限公司 | A kind of on-vehicle lens detection device |
| CN107306325A (en) * | 2016-04-22 | 2017-10-31 | 宁波舜宇光电信息有限公司 | The device of utilization space measurement of coordinates camera module visual field and its application |
| CN107449586A (en) * | 2017-08-16 | 2017-12-08 | 信利光电股份有限公司 | A kind of fish-eye method of testing and test device |
| CN107462403A (en) * | 2017-08-16 | 2017-12-12 | 信利光电股份有限公司 | A kind of fish-eye method of testing and test device |
| CN107525651A (en) * | 2016-06-22 | 2017-12-29 | 北京疯景科技有限公司 | Camera lens resolving power method of testing, apparatus and system |
| CN108152005A (en) * | 2016-12-06 | 2018-06-12 | 宁波舜宇车载光学技术有限公司 | A kind of automatic clamping and placing measuring device |
| CN108931357A (en) * | 2017-05-22 | 2018-12-04 | 宁波舜宇车载光学技术有限公司 | Test target and corresponding camera lens MTF detection system and method |
| CN109212886A (en) * | 2017-06-30 | 2019-01-15 | 鸿富锦精密工业（深圳）有限公司 | Fisheye camera mould group image test device |
| CN109946910A (en) * | 2017-12-21 | 2019-06-28 | 宁波舜宇车载光学技术有限公司 | Vehicle-mounted optical projection system |
| CN112304573A (en) * | 2020-09-21 | 2021-02-02 | 武汉高德智感科技有限公司 | Method and system for simultaneously measuring lens distortion and MTF indexes |
-
2009
- 2009-07-14 CN CN2009201245814U patent/CN201438143U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987806A (en) * | 2015-02-02 | 2016-10-05 | 宁波舜宇光电信息有限公司 | Device and method for testing turning lens |
| CN107306325A (en) * | 2016-04-22 | 2017-10-31 | 宁波舜宇光电信息有限公司 | The device of utilization space measurement of coordinates camera module visual field and its application |
| CN107525651A (en) * | 2016-06-22 | 2017-12-29 | 北京疯景科技有限公司 | Camera lens resolving power method of testing, apparatus and system |
| CN108152005A (en) * | 2016-12-06 | 2018-06-12 | 宁波舜宇车载光学技术有限公司 | A kind of automatic clamping and placing measuring device |
| CN106950039A (en) * | 2017-05-05 | 2017-07-14 | 江西高瑞光电股份有限公司 | A kind of digital camera lens detector of microspur |
| CN108931357A (en) * | 2017-05-22 | 2018-12-04 | 宁波舜宇车载光学技术有限公司 | Test target and corresponding camera lens MTF detection system and method |
| CN108931357B (en) * | 2017-05-22 | 2020-10-23 | 宁波舜宇车载光学技术有限公司 | Test target and corresponding lens MTF detection system and method |
| CN107290132A (en) * | 2017-05-27 | 2017-10-24 | 惠州市德赛自动化技术有限公司 | A kind of on-vehicle lens detection device |
| CN107290132B (en) * | 2017-05-27 | 2023-08-25 | 惠州市德赛自动化技术有限公司 | Vehicle-mounted lens detection equipment |
| CN109212886A (en) * | 2017-06-30 | 2019-01-15 | 鸿富锦精密工业（深圳）有限公司 | Fisheye camera mould group image test device |
| CN107449586A (en) * | 2017-08-16 | 2017-12-08 | 信利光电股份有限公司 | A kind of fish-eye method of testing and test device |
| CN107462403A (en) * | 2017-08-16 | 2017-12-12 | 信利光电股份有限公司 | A kind of fish-eye method of testing and test device |
| CN109946910A (en) * | 2017-12-21 | 2019-06-28 | 宁波舜宇车载光学技术有限公司 | Vehicle-mounted optical projection system |
| CN112304573A (en) * | 2020-09-21 | 2021-02-02 | 武汉高德智感科技有限公司 | Method and system for simultaneously measuring lens distortion and MTF indexes |
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Granted publication date: 20100414 |
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| CX01 | Expiry of patent term |