Optical system for small-bore endoscope

An optical system and endoscope technology, applied in the field of medical devices, can solve the problems of short range of clear imaging object distance, discount of endoscope detection effect, inconvenient inspection, etc., achieving low tolerance sensitivity, small change in working focal length, and improved wildcard effect
CN107874733APending Publication Date: 2018-04-06ZHONGSHAN ZHONGYING OPTICAL
0 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHONGSHAN ZHONGYING OPTICAL
Publication Date
2018-04-06

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention relates to an optical system for a small-bore endoscope. The system is sequentially provided with a first lens (1), a light filter (2), a fixed diaphragm (3), a second lens (4), a thirdlens (5), a fourth lens (6) and chip protection glass (7) from the object plane to the image plane, and the optical system for the endoscope meets the relation shown in the description. According to the optical system for the endoscope, the optimal imaging object distance in the human body is consistent with that in air.
Need to check novelty before this filing date? Find Prior Art

Description

【Technical field】

[0001] The patent of the present invention relates to a medical device, especially a small-diameter endoscope optical system. 【Background technique】

[0002] With the rapid development of science and technology, the medical industry has also made great progress, and the technology of using endoscope for inspection and using endoscope for minimally invasive surgery has gradually developed and matured. As an optical instrument, the endoscope can enter the body through the natural channel of the human body to image the lesion, and can directly observe the lesion in the organ. At present, most endoscopes have large calibers, and the process of entering the human body is relatively painful, and it is not convenient to inspect the lesion with narrow channels; The range is very short, which greatly reduces the detection effect of the endoscope

[0003] Due to the above-mentioned problems, it is necessary to propose a solution, and the present invention is made u...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More