Polarized light endoscope device, camera, and camera optical system

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 optical splitter has an optical characteristic of selecting the wavelength of the light wave into two wave bands of 380 nm-lambda and lambda-700 nm, and reflects the light wave with the wavelength of 380 nm-lambda and transmits the light wave with the wavelength of lambda-700 nm at the same time, or transmits the light wave with the wavelength of 380 nm-lambda and reflects the light wave with the wavelength of lambda-700 nm at the same time; and lambda is an arbitrary value in the range of 600 nm to 670 nm. After the light waves are split, the light waves with the wavelength of 380 nm to lambda are imaged on the white light image sensor, the light waves with the wavelength of lambda to 700 nm are imaged on the polarized light image sensor, the polarized light endoscope device can simultaneously obtain common white light images and polarized light images in an operation, the polarized light imaging can provide clearer images, the operation field in the operation is kept clear continuously, and the operation efficiency is improved. And the safety and effectiveness of the operation are improved.

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 the human body and organs for direct observation, diagnosis and treatment. It uses an extremely 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 foc...

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 normal saline medium, the operation cavity is filled with normal saline, blood, bone residue, soft tissue residue and stone particles, etc. These substances constitute a non-homogeneous medium, so the reflected light of such medium will cause scattering, which will affect the imaging clarity of the endoscopic device

In this case, the camera optical system used for endoscopic devices in the prior art cannot solve the aforementioned problems, resulting in blurred surgical field of view, affecting the safety and effectiveness of surgery

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