Title:
POLARIZED LIGHT ENDOSCOPE DEVICE, CAMERA, AND CAMERA OPTICAL SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/108982
Kind Code:
A1
Abstract:
The present application discloses a camera optical system for a polarized light endoscope device, comprising an optical adapter and a light splitter that are axially and successively arranged from an object side to an image side. The light splitter has the optical characteristic of dividing the wavelength of a light wave into two bands of 380 nm-λ and λ-700 nm for selection; the light wave having a wavelength of 380 nm-λ is reflected and the light wave having a wavelength of λ-700 nm is transmitted, or the light wave having a wavelength of 380 nm-λ is transmitted and the light wave having a wavelength of λ-700 nm is reflected; and λ is any value within the range of 600 nm-670 nm. After the light wave is split, the light wave having a wavelength of 380 nm-λ is imaged on a white light image sensor (11), and the light wave having a wavelength of λ-700 nm is imaged on a polarized light image sensor (12), so that the polarized light endoscope device can obtain both an ordinary white light image and a polarized light image in an operation; polarized light imaging can provide a clear image, thereby keeping the surgical field of view continuously clear in the operation, and improving the safety and effectiveness of the operation.
Inventors:
GUO YIJUN (CN)
Application Number:
PCT/CN2022/089765
Publication Date:
June 22, 2023
Filing Date:
April 28, 2022
Export Citation:
Assignee:
CHONGQING XISHAN SCIENCE & TECH CO LTD (CN)
International Classes:
A61B1/04; A61B1/00; G02B23/24
Foreign References:
| CN216434529U | 2022-05-03 | |||
| CN216434530U | 2022-05-03 | |||
| CN216696844U | 2022-06-07 | |||
| CN216792582U | 2022-06-21 | |||
| CN114176484A | 2022-03-15 | |||
| CN114176483A | 2022-03-15 | |||
| CN113491497A | 2021-10-12 | |||
| CN104799801A | 2015-07-29 | |||
| CN110187484A | 2019-08-30 | |||
| US20090225156A1 | 2009-09-10 |
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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