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Real-time regulating system for centering optical axis of CCD stereo camera

A stereo camera, real-time adjustment technology, applied in stereo systems, optical devices, image data processing, etc., to achieve high precision, easy adjustment, and meet the needs of position accuracy

Inactive Publication Date: 2009-07-01
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

At present, there is no report of such a high-precision adjustment system

Method used

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  • Real-time regulating system for centering optical axis of CCD stereo camera

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Embodiment Construction

[0012] see figure 1 , the present invention comprises collimator 1, window glass 2, stereoscopic camera lens 3, CCD4 and computer data acquisition system 5, and window glass 2, stereoscopic camera lens 3, CCD4 are arranged on the optical axis of collimator 1 successively, computer data Acquisition system 5 is connected with CCD4, wherein

[0013] Collimator 1 is a standard light pipe with proper focal length. The focal length of the used collimator 1 should be greater than 4 times the focal length of the adjusted stereo camera lens 3 .

[0014] The window glass 2 is flat glass matched with the stereo camera lens 3 . The diameter of the flat glass should meet the field of view requirements of the stereo camera lens 3 .

[0015] The stereo camera lens 3 is a lens matching the pixel size of the CCD4. The matching of the focal length of the lens and the size of the pixel should meet the requirements of the pixel resolution.

[0016] CCD4 can adopt various types of area array ...

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Abstract

The invention relates to a system for adjusting an optical axis of a CCD stereo camera to the center in real time. The system for adjusting an optical axis of a CCD stereo camera to the center in real time which is provided by the invention comprises parallel light pipes (1), window glass (2), a stereo camera lens (3), a CCD (4) and a computer data collecting system (5), wherein the window glass (2), the stereo camera lens (3) and the CCD (4) are arranged on the optical axis of the parallel light pipes (1) in turn, and the computer data collecting system (5) is connected with the CCD (4). The invention provides the system for adjusting an optical axis of a CCD stereo camera to the center in real time with convenient adjustment, which can obtain the central deviation value in real time, for solving the technical problem in an existing CCD stereo camera that the real time adjustment of the optical axial with high precision to the center is difficult.

Description

technical field [0001] The invention relates to a system for real-time adjustment of the center of the optical axis, in particular to a real-time adjustment system of the center of the optical axis of a CCD stereo camera. Background technique [0002] CCD stereo cameras belong to the range of surveying and mapping cameras, which can be used in the field of aerospace and ground surveying and mapping. When performing stereoscopic surveying and mapping, there are certain requirements for the inherent parameters of the surveying and mapping camera itself. Among them, the optical axis of the optical lens and the center position of the focal plane have relatively strict assembly accuracy requirements. For a CCD stereo camera, the geometric position of the intersection of the optical axis and the focal plane is required to be adjusted within 1 pixel, that is, the position deviation is less than 0.015mm. At present, there is no report of this kind of high-precision adjustment syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00H04N13/00G01B11/00
Inventor 阮萍杨建峰高伟宋宗玺卢笛赵葆常
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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