Endoscope Camera Optical System Non-Parallel Light Projection
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Solution Overview
Problem
Existing endoscopes are limited by their optical structure, preventing them from achieving ultra-high-definition imaging, which affects the overall display quality.
Innovation Solution
An integrated endoscope optical system comprising an object lens module, a relay module, an eye lens module, and an optical interface light path module, where the image formed by the object lens module is projected as non-parallel light through the relay and eye lens modules to a digital ultra-high-definition camera, increasing the relative aperture by adjusting the pupil diameters to improve resolution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optical structure of existing endoscopes is used, then the device complexity is reduced, but the imaging resolution cannot reach ultra-high-definition level
Solution Approach 1:
The optical system is divided into distinct modules: object lens module, relay module, eye lens module, and optical interface light path module. Each module performs a specific function in the imaging chain, allowing for optimized design of each segment while maintaining overall system performance for ultra-high-definition imaging
Solution Approach 2:
The patent combines multiple optical modules into an integrated optical system where the object lens, relay module, and eye lens work together as a unified structure. This merging achieves ultra-high-definition imaging capability (exceeding 8 million pixels) that cannot be reached by individual modules alone
2Measurement precision
If the relative aperture is increased by adjusting pupil diameters, then the imaging resolution is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent optimizes specific parameters including setting the relative aperture to 1:4 to 1:6, entrance pupil diameter of the object lens module to 0.2mm to 1mm, and exit pupil diameter of the eye lens module to 3mm to 6mm. These parameter specifications enable ultra-high-definition imaging while providing clear manufacturing guidelines to control precision requirements
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves higher image resolution, with a relative aperture of 1:4 to 1:6, allowing for MTF>0.2@120 lp/mm, enhancing the imaging quality beyond individual module capabilities without increasing costs.
Implementation Method 1
an image formed by the object lens module is projected to the optical interface light path module in a form of non-parallel light/divergent light after passing through the relay module and the eye lens module
Data Source
AI summary
The present disclosure provides an endoscope system and an integrated design method for an endoscope camera optical system. The endoscope system includes an object lens module, relay module, eye lens module, optical interface light path module, and digital ultra-high definition camera successively arranged along the light path direction, wherein an image formed by the object lens module is projected to the optical interface light path module in a non-parallel light manner/divergent light manner after passing through the relay module and the eye lens module.