CN101464142A - Detection apparatus and detection method for plain shaft precision of camera - Google Patents
Detection apparatus and detection method for plain shaft precision of camera Download PDFInfo
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- CN101464142A CN101464142A CNA2009100640670A CN200910064067A CN101464142A CN 101464142 A CN101464142 A CN 101464142A CN A2009100640670 A CNA2009100640670 A CN A2009100640670A CN 200910064067 A CN200910064067 A CN 200910064067A CN 101464142 A CN101464142 A CN 101464142A
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- video camera
- camera
- optical axis
- parallel light
- lens combination
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Abstract
The invention provides a device and a method for detecting the accuracy of the optical axis of a video camera, wherein, the device comprises a base, a lens group collimator, a flexible light shield and a product bracket; the product bracket is arranged at one end of the upper part of the base; a video camera is placed on the product bracket; one end of the flexible light shield is arranged on the lens side of the video camera, the other end thereof is connected with the lens group collimator; and a reticle is arranged on the back side of the lens collimator. The size of the viewing field of the lens collimator is adaptable to the size of the viewing field of the video camera, so that the deviation accuracy of the optical axes of different video camera products can be detected. The simple and clear detection process is suitable for the mass detection of video camera products and can operate in outdoor or bad environment. The device can read out the value of the size of a camera field of the video camera at the same time, and the value is an important index of the video product to be detected.
Description
Technical field:
The present invention relates to pick-up unit, especially a kind of plain shaft precision of camera pick-up unit and detection method.
Background technology:
The scenery in a video camera picked-up distant place, the picture center of acquisition is called " camera optical axis ".When video camera is installed in the engineering system, often require camera optical axis and datum clamp face at an angle or parallel with other optical axis (as laser beam, infrared optical axis).Video camera is made up of camera lens (lens combination), imageing sensor, circuit board, housing and installed surface etc., the video camera product can cause the angular deviation off technical requirement of optical axis and installed surface in design, processing, assembling process, need intuitively and accurately to detect the direction and the size of deviation, instruct adjustment and correction camera optical axis.
At present, the deviation precision that detects camera optical axis needs corresponding multiple optical gauge, good detection environment and complicated trace routine, and some also needs to carry out indirect triangle, light path converts for how much.Along with the widespread use of video camera in every profession and trade, each field, the video camera product produce, debug, need in the link such as check to its optical axis carry out fast, directly perceived and accurate the detection.In order to address the above problem, the inventor provides following pick-up unit and detection method.
Summary of the invention:
Pick-up unit
The present invention is a kind of pick-up unit that is used for camera optical axis deviation precision, as shown in Figure 1.This device mainly is made up of pedestal, lens combination parallel light tube, flexible light shield and product shelves; The visual field of parallel light tube adapts to the needs of camera field of view, on the focal plane of lens combination parallel light tube graticule is set; Product shelves is arranged on an end of pedestal top, and the video camera dress is placed on the product shelves, and flexible light shield one end is arranged on camera lens one side, and the other end is connected with the lens combination parallel light tube, and lens combination parallel light tube rear is provided with graticule.The size of lens combination parallel light tube visual field and adapt with video camera can detect the optical axis deviation precision of different cameras product.
The optical axis center of lens combination parallel light tube is parallel with plane B on the pedestal with the formed straight line A in graticule center; After video camera was rack-mount, supporting structure guaranteed that the optical axis center of video camera overlaps with straight line A; Flexible light shield guarantees that video camera is airtight light tight to the light path between the lens combination parallel light tube; Pedestal is the platform that lens combination parallel light tube and product shelves are installed.
Detection method
On the product shelves that video camera is installed in, the figure of scioptics group parallel light tube picked-up graticule also shows on video monitor; The graticule figure that shows is by shown in Figure 2, and S axle and Y-axis are divided into four quadrants with picture, and the center scale value is zero; When the up and down of reading picture, a left side and right scale value (algebraic sum) were 0, the optical axis of expression video camera product did not have deviation; Be not 0 o'clock, represent that there is deviation in its optical axis, need regulate or proofread and correct camera optical axis.
Beneficial effect:
The invention has the beneficial effects as follows:
(1) volume is little, and is in light weight and integrated, easily carries and carries;
(2) each assembly is fastening, and long-term use does not need to proofread and correct again;
(3) adopt flexible light shield, make the airtight influence that is not subjected to ambient light of light path;
(4) testing process is simple and clear, is applicable to the batch detection of video camera product, can work under outdoor or rugged surroundings.This device can be read the magnitude numerical value of camera field of view simultaneously, also is the important technology index that the video camera product will detect.
Description of drawings:
Below in conjunction with accompanying drawing the present invention is further described.
Fig. 1 is device general assembly structural representation of the present invention.
Fig. 2 is graticule synoptic diagram of the present invention.
Embodiment one:
Product shelves is arranged on an end of pedestal top, and the video camera dress is placed on the product shelves, and flexible light shield one end is arranged on camera lens one side, and the other end is connected with the lens combination parallel light tube, and lens combination parallel light tube rear is provided with graticule.The size of lens combination parallel light tube visual field and adapt with the visual field of video camera can detect the optical axis deviation precision of different cameras product.Embodiment two:
The optical axis center of lens combination parallel light tube is parallel with plane B on the pedestal with the formed straight line A in graticule center; After video camera was rack-mount, supporting structure guaranteed that the optical axis center of video camera overlaps with straight line A; Flexible light shield guarantees that video camera is airtight light tight to the light path between the lens combination parallel light tube; Pedestal is the platform that lens combination parallel light tube and product shelves are installed.
Embodiment three:
On the product shelves that video camera is installed in, the figure of scioptics group parallel light tube picked-up graticule also shows on video monitor; The graticule figure that shows is by shown in Figure 2, and S axle and Y-axis are divided into four quadrants with picture, and the center scale value is zero; When the up and down of reading picture, a left side and right scale value (algebraic sum) were 0, the optical axis of expression video camera product did not have deviation; Be not 0 o'clock, represent that there is deviation in its optical axis, need regulate or proofread and correct camera optical axis.
Claims (3)
1, a kind of plain shaft precision of camera pick-up unit and detection method are to be made of, pedestal, lens combination parallel light tube, flexible light shield and product shelves; It is characterized in that: product shelves is arranged on an end of pedestal top, and the video camera dress is placed on the product shelves, and flexible light shield one end is arranged on camera lens one side, and the other end is connected with the lens combination parallel light tube, and lens combination parallel light tube rear is provided with graticule.The size of lens combination parallel light tube visual field and adapt with the visual field of video camera can detect the optical axis deviation precision of different cameras product.
2, a kind of plain shaft precision of camera pick-up unit and detection method is characterized in that: the optical axis center of lens combination parallel light tube is parallel with plane B on the pedestal with the formed straight line A in graticule center; After video camera was rack-mount, supporting structure guaranteed that the optical axis center of video camera overlaps with straight line A; Flexible light shield guarantees that video camera is airtight light tight to the light path between the lens combination parallel light tube; Pedestal is the platform that lens combination parallel light tube and product shelves are installed.
3, according to a kind of plain shaft precision of camera pick-up unit and the detection method described in the claim 2, it is characterized in that: on the product shelves that video camera is installed in, the figure of scioptics group parallel light tube picked-up graticule also shows on video monitor; The graticule figure that shows is by shown in Figure 2, and S axle and Y-axis are divided into four quadrants with picture, and the center scale value is zero; When the algebraic sum of the up and down of reading picture, a left side and right scale value was 0, the optical axis of expression video camera product did not have deviation; Be not 0 o'clock, represent that there is deviation in its optical axis, need regulate or proofread and correct camera optical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100640670A CN101464142A (en) | 2009-01-13 | 2009-01-13 | Detection apparatus and detection method for plain shaft precision of camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100640670A CN101464142A (en) | 2009-01-13 | 2009-01-13 | Detection apparatus and detection method for plain shaft precision of camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101464142A true CN101464142A (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2009100640670A Pending CN101464142A (en) | 2009-01-13 | 2009-01-13 | Detection apparatus and detection method for plain shaft precision of camera |
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| CN (1) | CN101464142A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852243A (en) * | 2012-12-06 | 2014-06-11 | 义晶科技股份有限公司 | Method for detecting optical center of wide-angle lens and optical center detecting device |
| WO2014101281A1 (en) * | 2012-12-26 | 2014-07-03 | 青岛歌尔声学科技有限公司 | Device and method for detecting optical-axis offset of lens in apparatus |
| CN104807614A (en) * | 2014-01-23 | 2015-07-29 | 苏州智华汽车电子有限公司 | Method for manufacturing calibrating gold sample for optical axis checking machine of vehicle-mounted camera |
| CN105021375A (en) * | 2015-07-29 | 2015-11-04 | 山东神戎电子股份有限公司 | Optical axis offset error compensation method and determination apparatus |
| CN105338233A (en) * | 2015-12-04 | 2016-02-17 | 中国航空工业集团公司洛阳电光设备研究所 | Camera assembling adjusting and calibrating method |
| 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 |
-
2009
- 2009-01-13 CN CNA2009100640670A patent/CN101464142A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103852243A (en) * | 2012-12-06 | 2014-06-11 | 义晶科技股份有限公司 | Method for detecting optical center of wide-angle lens and optical center detecting device |
| CN103852243B (en) * | 2012-12-06 | 2016-07-06 | 义晶科技股份有限公司 | Method for detecting optical center of wide-angle lens and optical center detecting device |
| WO2014101281A1 (en) * | 2012-12-26 | 2014-07-03 | 青岛歌尔声学科技有限公司 | Device and method for detecting optical-axis offset of lens in apparatus |
| CN104807614A (en) * | 2014-01-23 | 2015-07-29 | 苏州智华汽车电子有限公司 | Method for manufacturing calibrating gold sample for optical axis checking machine of vehicle-mounted camera |
| CN104807614B (en) * | 2014-01-23 | 2017-07-11 | 苏州智华汽车电子有限公司 | A kind of preparation method of vehicle-mounted camera optical axis check machine with golden sample is demarcated |
| 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 |
| CN105021375A (en) * | 2015-07-29 | 2015-11-04 | 山东神戎电子股份有限公司 | Optical axis offset error compensation method and determination apparatus |
| CN105338233A (en) * | 2015-12-04 | 2016-02-17 | 中国航空工业集团公司洛阳电光设备研究所 | Camera assembling adjusting and calibrating method |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090624 |