CN-121987121-A - Method for forming multiple images by single-path incident light without overlapping

CN121987121ACN 121987121 ACN121987121 ACN 121987121ACN-121987121-A

Abstract

A method for forming multiple images by single incident light without overlapping images. A lens S is added between an optical hard lens (such as a medical optical endoscope such as a thoracoscope, a laparoscope and a neuroendoscope) and an optical adapter (such as an optical adapter of an endoscope camera system), the lens S divides incident light rays of the optical hard lens into two paths of light rays at the exit pupil position of the optical hard lens, the two paths of light rays are processed and then transmitted into the optical adapter, and emergent light rays of the optical adapter can form two images on an image sensor (such as an image sensor in a camera of the endoscope camera system). When the two images overlap, the two images can be made non-overlapping by placing a shutter in the optical path, or by placing a polarizer in the image sensor surface and the optical path.

Inventors

TIAN SHICHAO
HUANG XIAOZHU
XU LIANG

Assignees

吴宸

Dates

Publication Date: 20260508
Application Date: 20260311

Claims (3)

1. A method for forming multiple images by single-path incident light without overlapping is characterized in that the incident light of a lens S is emergent light of a front lens, the lens S divides the emergent light of the front lens SF into two paths of rays of sub-rays 1 and sub-rays 2 at an exit pupil position, the emergent light of the lens S is transmitted into a next lens SB, the emergent light of the lens SB forms two images on an image sensor, the emergent light of the lens S can also form two images directly on the image sensor, before overlapping does not occur on the optical paths of the sub-rays 1 and the sub-rays 2, a shutter 1 is placed on the optical path of the sub-rays 1, and a shutter 2 is placed on the optical path of the sub-rays 2, and the shutter 1 and the shutter 2 are opened alternately; The shutter 1 and the shutter 2 are alternately opened, and the method is characterized in that when the shutter 1 is opened, the shutter 2 is closed, the sub-light 1 is imaged on the image sensor, and when the shutter 2 is opened, the shutter 1 is closed, and the sub-light 2 is imaged on the image sensor.
2. A method for forming multiple images by single-path incident light without overlapping is characterized in that the incident light of a lens S is emergent light of a front lens, the lens S divides the emergent light of the front lens SF into two paths of rays of sub-rays 1 and sub-rays 2 at an exit pupil position, the emergent light of the lens S is transmitted to a next lens SB, the emergent light of the lens SB forms two images on an image sensor, the emergent light of the lens S can also form two images directly on the image sensor, before overlapping does not occur on the optical paths of the sub-rays 1 and the sub-rays 2, a polaroid 1 is placed on the optical path of the sub-rays 1, a polaroid 2 is placed on the surface of a corresponding imaging area on the image sensor of the sub-rays 1, a polaroid 3 is placed on the optical path of the sub-rays 2, and a polaroid 4 is placed on the surface of a corresponding imaging area on the image sensor of the sub-rays 2; The polarizing plate 1, the polarizing plate 2, the polarizing plate 3 and the polarizing plate 4 are characterized in that when the polarizing plate 1 is 0-degree linear polarization, the polarizing plate 2 is 0-degree linear polarization, the polarizing plate 3 is 90-degree linear polarization, the polarizing plate 4 is 90-degree linear polarization, when the polarizing plate 1 is 90-degree linear polarization, the polarizing plate 2 is 90-degree linear polarization, the polarizing plate 3 is 0-degree linear polarization, and the polarizing plate 4 is 0-degree linear polarization.
3. A method for forming multiple images by single-path incident light without overlapping is characterized in that the incident light of a lens S is emergent light of a front lens, the lens S divides the emergent light of the front lens SF into two paths of rays of sub-rays 1 and sub-rays 2 at an exit pupil position, the emergent light of the lens S is transmitted to a next lens SB, the emergent light of the lens SB forms two images on an image sensor, the emergent light of the lens S can also form two images directly on the image sensor, before overlapping does not occur on the optical paths of the sub-rays 1 and the sub-rays 2, a polaroid 1 is placed on the optical path of the sub-rays 1, a polaroid 2 is placed on the surface of a corresponding imaging area on the image sensor of the sub-rays 1, a polaroid 3 is placed on the optical path of the sub-rays 2, and a polaroid 4 is placed on the surface of a corresponding imaging area on the image sensor of the sub-rays 2; The polarizing plate 1, the polarizing plate 2, the polarizing plate 3 and the polarizing plate 4 are characterized in that when the polarizing plate 1 is left-handed circular polarized light, the polarizing plate 2 is left-handed circular polarized light, the polarizing plate 3 is right-handed circular polarized light, and when the polarizing plate 1 is right-handed circular polarized light, the polarizing plate 2 is right-handed circular polarized light, the polarizing plate 3 is left-handed circular polarized light, and the polarizing plate 4 is left-handed circular polarized light.

Description

Method for forming multiple images by single-path incident light without overlapping Technical Field And (5) optical imaging. Background The medical hard optical endoscope system consists of an optical hard mirror and an endoscope image pickup system, wherein the endoscope image pickup system consists of a host, a camera and an optical adapter, and the optical endoscope and the camera are connected through the optical adapter. Light enters from the objective lens end of the optical hard lens and then exits from the eyepiece end of the optical hard lens, the light exiting from the eyepiece end of the optical hard lens is transmitted into the optical adapter, and the emergent light of the optical adapter forms an image on the image sensor. Disclosure of Invention A lens S is added between an optical hard lens (such as a medical optical endoscope such as a thoracoscope, a laparoscope and a neuroendoscope) and an optical adapter (such as an optical adapter of an endoscope camera system), the lens S divides incident light rays of the optical hard lens into two paths of light rays at the exit pupil position of the optical hard lens, the two paths of light rays are processed and then transmitted into the optical adapter, and emergent light rays of the optical adapter can form two images on an image sensor (such as an image sensor in a camera of the endoscope camera system). When the two images overlap, the two images can be made non-overlapping by placing a shutter in the optical path, or by placing a polarizer in the image sensor surface and the optical path. Drawings Fig. 1 is a schematic view of an optical path of a single incident light into two images, fig. 2 is a schematic view of a shutter placed, and fig. 3 is a schematic view of a polarizer placed. Detailed Description As shown in FIG. 1, a lens S is added between an optical hard lens (such as a medical optical endoscope including a thoracoscope, a laparoscope, a neuroendoscope and the like) and an optical adapter (such as an optical adapter of an endoscope image pickup system), the optical hard lens is marked as a front lens SF, and the optical adapter is marked as a rear lens SB. The outgoing light (1) from the front lens SF is divided into sub-rays 1 (19) and 2 (20) at an exit pupil position P (2) by a spectroscopic optical surface 1 (3) and a spectroscopic optical surface 2 (4) in the lens S. The exit pupil position P (2) is characterized in that any point on the optical path section of the position receives, in an ideal case, light reflected from each position on the surface of the object to be photographed and entering the front lens SF (when no aperture stop is added). The light-splitting optical surface 1 (3) and the light-splitting optical surface 2 (4) are paired, the optical surface 5 and the optical surface 6 which are next are paired, the optical surface 7 and the optical surface 8 are paired, the optical surface 9 and the optical surface 10 are paired, and the optical surface 11 and the optical surface 12 are paired, and the paired optical surfaces are used for respectively processing the two split sub-rays. The sub-light rays (19) pass through the optical surface (3), the optical surface (6), the optical surface (8), the optical surface (10) and the optical surface (12) and then enter the optical surface (13), and the sub-light rays (20) pass through the optical surface (4), the optical surface (5), the optical surface (7), the optical surface (9) and the optical surface (11) and then enter the optical surface (13). After the sub-light rays (19) and the sub-light rays (20) are transmitted into the optical surface (13), the sub-light rays are emitted from the optical surface (14) and transmitted into the rear lens SB (16). The outgoing light from the rear lens (16) is formed into two images on an image sensor (17) such as an image sensor in a camera of an endoscopic camera system. The sub-light rays (19) and (20) are transmitted into the optical surface (13) and then emitted from the optical surface (14). The outgoing light rays of the optical surface (14) can also be formed into two images directly on an image sensor (17) such as an image sensor in a camera of an endoscope camera system. The sub-light (19) can be directly formed into an image on an image sensor (such as an image sensor (17) in a camera of an endoscope camera system) after exiting from the optical surface (11), and the sub-light (20) can be directly formed into an image on an image sensor (such as an image sensor (17) in a camera of an endoscope camera system) after exiting from the optical surface (12). The optical surfaces in the lens S are divided into a spectroscopic optical surface, a direction readjusting optical surface, an independent optical path optical surface, and a combining optical surface. The effect of the beam splitting optical surface is to split the light into two paths of light rays each forming a complete image at the exit pupil position P (2) of the fro