Polarized light endoscope device camera optical system, camera, and endoscope device

Abstract

The invention mainly discloses a polarized light endoscope device camera optical system. The polarized light endoscope device camera optical system comprises an optical adapter and an optical splitter which are sequentially arranged from the object side to the image side in the axial direction. The focal length of the optical adapter is 27-35 mm, the reflection ratio is 1-1.5, and the total length is 30-40 mm. Through effective selection of the focal length, the total length and the reflection ratio of the optical adapter, the structure can be simplified, the air interval can be reduced, the size miniaturization can be realized, and the effective resolution and the image quality of an optical system can be ensured; a narrower main light incident angle is formed and is matched with an image sensor, so that different view fields can obtain better brightness response; the device can be effectively matched with an optical splitter, and a technical basis is provided for further collecting images through light splitting.

Description

technical field [0001] The invention relates to the technical field of endoscopes, in particular to a polarized light endoscope device. Background technique [0002] Medical endoscope is a medical electronic optical instrument that can be inserted into the cavity of human body and organs for direct observation, diagnosis and treatment. It uses a very small optical lens to image the object in the cavity to be observed through a tiny objective lens. The system performs optical imaging, then sends the optical imaging to the image processing host, and finally outputs the image-processed observation image on the display screen for observation and diagnosis by doctors. [0003] Please refer to figure 1 As shown, the current endoscope device as a whole includes a light source, an endoscope, a camera and a host. Among them, the optical system of the camera generally includes an optical adapter lens, which is divided into a fixed focal length adapter (ie: optical fixed focus adapte...

AI Technical Summary

Problems solved by technology

Scattered light will affect the imaging clarity, cause the target to be blurred, and even cause the target to be undetectable

In clinical operations using endoscopic devices (such as orthopedic surgery, urological surgery, gynecological surgery, etc.), under the normal saline medium, the operation cavity is filled with normal saline, blood, bone residue, soft tissue residue, stone particles, etc. These substances constitute a non-uniform medium, so the reflected light of such medium will be scattered, thereby affecting the imaging clarity of the endoscope device. In this case, the camera optical system used for the endoscope device in the prior art, Unable to solve the aforementioned problems, resulting in blurred surgical field of view, affecting the safety and effectiveness of surgery

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