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A method for detecting field angle of rigid tube endoscope

A detection method and endoscope technology, applied in the direction of testing optical performance, etc., can solve the problems of increasing the complexity and uncertainty of measurement work, troublesome manual alignment process, and error of measurement results, so as to omit alignment links and reduce Complexity, the effect of improving detection accuracy

Active Publication Date: 2018-07-06
BEIJING WEISIDUN ASIA PACIFIC OPTO ELECTRIC INSTR CO LTD
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AI Technical Summary

Problems solved by technology

Since the two coincidences need to be aligned manually, it will bring great errors to the measurement results, thereby reducing the measurement accuracy, and the manual alignment process is also troublesome; in addition, when performing multiple measurements on the endoscope, it is necessary to prepare Multiple targets with different patterns, which also increases the complexity and uncertainty of the measurement work

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  • A method for detecting field angle of rigid tube endoscope

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Embodiment Construction

[0019] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] The invention provides a detection method for measuring the field angle of the rigid tube endoscope, which can realize the measurement of the field angle of the rigid tube endoscope, and thus can be used as one of the optical parameters to evaluate the imaging quality and performance index of the endoscope .

[0021] The detection method of the present invention is based on figure 1 The detection device shown includes a liquid crystal display 1, a liquid crystal display control module 6, an imaging CCD3, an endoscope clamping frame 2, a linear motor guide rail 5 and an image processing module 4 thereof; a liquid crystal display 1, an endoscope clamp The holding frame 2 and the imaging CCD3 are installed on the linear motor guide rail 5; the hard tube endoscope to be tested is fixed on the endoscope holding frame 2, and the endoscope holding frame 2...

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Abstract

The invention discloses a method for detecting the viewing angle of a rigid tube endoscope, which uses a liquid crystal display instead of a fixed target, does not require the circular field of view of the endoscope to be aligned with the fixed area of ​​the target, omits the alignment link, and does not require preparation Multiple targets can reduce the complexity of the detection work; displaying the target on the liquid crystal screen, compared with the detection method of the target drawn by illuminating the light source, the method of the present invention is more intelligent, and at the same time, the obtained detection result It will also be more accurate; within the working distance range, the linear motor is used to move the endoscope by a distance H, and H is an arbitrary value, and the positioning is more accurate, thereby improving the detection accuracy.

Description

technical field [0001] The invention relates to the technical field of optical parameter measurement of a rigid tube endoscope, in particular to a method for detecting the field angle of a rigid tube endoscope. Background technique [0002] As a medical device, the optical characteristics of the endoscope affect its imaging quality, which indirectly affects the safety of diagnosis and treatment. Therefore, the field of view is one of the optical parameters. The higher the measurement accuracy, the better it can characterize the characteristics of the endoscope, and the higher the safety of diagnosis and treatment. The master's thesis "Research on Optical Performance Quality Control Detection Technology of Medical Rigid Endoscope" provides a device for detecting the field of view angle of medical rigid endoscope, including guide rails, uniform light source, target, etc. The target is set between uniform light source and In the medical rigid endoscope room, the uniform light s...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M11/02
Inventor 刘小华翟晓皓刘天宸董立泉刘明何川王亚坤程德文李庸辉周鹏巫放明
Owner BEIJING WEISIDUN ASIA PACIFIC OPTO ELECTRIC INSTR CO LTD
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