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Hard endoscope luminous efficiency uniformity detection method

A detection method, endoscope technology, applied in the direction of testing optical properties, etc., can solve the problems of long measurement period, low accuracy, cumbersome operation, etc., and achieve the effects of avoiding observation fatigue, convenient operation, and accurate detection results

Active Publication Date: 2016-11-23
BEIJING WEISIDUN ASIA PACIFIC OPTO ELECTRIC INSTR CO LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

During the measurement process, it is mainly through manual detection, which is cumbersome to operate, long measurement cycle, low accuracy, poor repeatability, and less information, and only one field of view with light effect

Method used

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  • Hard endoscope luminous efficiency uniformity detection method
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  • Hard endoscope luminous efficiency uniformity detection method

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Embodiment Construction

[0036] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0037] In the method for detecting uniformity of light effect of rigid endoscope of the present invention, a detection system is first established, such as figure 1 As shown, the system includes: two linear guide rails, a CCD camera 2, a rigid endoscope 3, a rotating platform 4, a uniform whiteboard 6, a liquid crystal screen 7, a bracket 8 and an image processing module. CCD camera 2 is installed on the first linear guide rail 1 by bracket 8, and the lens of CCD camera 2 is fixed on the exit pupil end of rigid endoscope 3; Rotating platform 4 is also installed on the first linear guide rail 1, and the second linear The guide rail 5 is fixed on the rotating platform 4, the uniform whiteboard 6 and the liquid crystal screen 7 are installed on the second linear guide rail 5, and the entrance pupil end of the rigid endoscope 3 faces the uniform whiteboard 6. ...

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Abstract

The invention discloses a hard endoscope luminous efficiency uniformity detection method. The method is used for detecting the luminous efficiency uniformity of the imaging lens of a hard endoscope and the comprehensive luminous efficiency uniformity of the imaging lens and an illumination lens in the hard endoscope based on a detection system. According to the detection method, an adopted detection device is in the form of an electric control device, so that the human intervention is reduced. Meanwhile, the measuring precision is improved, and the degree of automation is high. A CCD camera is adopted for imaging and a computer is adopted for displaying data. In this way, the direct observation of human eyes through an endoscope is not required, so that the observation fatigue is avoided. The operation is convenient. More information amount of a detection result, not limited to the luminous efficiency of a certain specific field-of-view band, can be reflected. Therefore, the luminous efficiency uniformity of the hard endoscope within the entire visual field can be reflected. Meanwhile, the optical performance of the hard endoscope can be better reflected. The test is conducted in a darkroom, or the influence of stray light is eliminated by a light blocking plate. As a result, the detection result is more accurate.

Description

technical field [0001] The invention relates to the technical field of rigid endoscope detection, in particular to a method for detecting the uniformity of light effect of rigid endoscopes, which is applicable to the optical performance of rigid endoscopes of different types, different lengths, and different viewing angles. Inspection of uniformity of light effect. Background technique [0002] With the increasing popularity of minimally invasive surgery under the endoscope, people's understanding of the safety and effectiveness of the clinical application of endoscope products has also gradually developed and deepened. The performance indicators of rigid endoscopes, especially the optical performance, directly or indirectly affect patients. safety. [0003] Uniformity of light effect is a very important parameter of rigid endoscope. At present, all rigid endoscopes in the world have more or less inhomogeneity, and the phenomenon of bright center and dark edge appears in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M11/02
Inventor 刘小华王亚坤刘天宸刘明董立泉何川翟小皓程德文李庸辉周鹏
Owner BEIJING WEISIDUN ASIA PACIFIC OPTO ELECTRIC INSTR CO LTD
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