Adjustable endoscope objective lens group
An endoscope and objective lens group technology, applied in endoscopy, medical science, surgery, etc., can solve the problems of small field of view, reduced accuracy, poor imaging quality, etc., to achieve clear imaging, improve brightness, improve The effect of image quality
Inactive Publication Date: 2019-10-29
JIANGSU TIANNING PHOTON TECH
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Problems solved by technology
[0003] In the prior art, endoscopes are all composed of GRIN lenses, but compared with optical lenses, GRIN lenses have poor imaging quality, small field of view, and cannot be adjusted, which reduces accuracy
Method used
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[0016] The present invention as Figure 1-2 As shown, it includes a cylindrical mirror base 1, in which a protective glass 2, a diaphragm 3, a plano-convex lens 4 and a lens 5 are sequentially arranged, the protective glass and the diaphragm are adhesively connected, and the plano-convex lens and the lens There is a distance between them, the convex surface of the plano-convex lens is opposite to the inner convex surface of the lens; the side wall of the mirror base is provided with a pair of symmetrically arranged transverse grooves 6, and the transverse grooves include a connected through groove 61 and an accommodating groove 62,
[0017] The side of the diaphragm facing the plane convex lens is provided with a positioning column 7, and the plane of the plane convex lens is provided with a pair of positioning grooves 8, and the positioning columns are arranged in the positioning grooves one by one.
[0018] Both ends of the planar convex lens are provided with sliders 9 res...
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The invention relates to an adjustable endoscope objective lens group, relates to medical apparatuses, in particular to the adjustable endoscope objective lens group. The adjustable endoscope objective lens group is simple in structure, convenient to adjust, and capable of improving the imaging reliability. The adjustable endoscope objective lens group comprises a cylindrical mirror seat, whereina protective glass, a diaphragm, a plano-convex lens and a lens are sequentially arranged in the mirror seat; the protective glass is in gluing connection with the diaphragm; a spacing is formed between the plano-convex lens and the lens; the convex surface of the plano-convex lens is opposite to the inner convex surface of the lens; and a pair of horizontal grooves in symmetrical arrangement is formed in the side walls of the mirror seat, and each horizontal groove comprises a through groove and an accommodating groove which are in communication. Through the adoption of the adjustable endoscope objective lens group disclosed by the invention, under the premise of guaranteeing clear imaging, the imaging quality is increased.
Description
technical field [0001] The invention relates to medical equipment, in particular to an adjustable endoscope objective lens group. Background technique [0002] An endoscope is a tube equipped with a light that is passed through the mouth into the stomach or into the body through other natural orifices. The endoscope can be used to see lesions that cannot be seen on X-rays, so it is very useful for doctors. For example, with the help of an endoscope, doctors can observe ulcers or tumors in the stomach and formulate the best treatment plan accordingly. [0003] In the prior art, endoscopes are all composed of GRIN lenses, but compared with optical lenses, GRIN lenses have poor imaging quality, small field of view, and cannot be adjusted, which reduces accuracy. Contents of the invention [0004] Aiming at the above problems, the present invention provides an adjustable endoscope objective lens group with simple structure, convenient and adjustable, and improved imaging rel...
Claims
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Login to View More IPC IPC(8): A61B1/00
CPCA61B1/00195
Inventor 金春平
Owner JIANGSU TIANNING PHOTON TECH