Optical Imaging Device with Filter-Specific Parameter Switching
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Solution Overview
Problem
Optical performance deteriorates when optical information optimized for narrowband light is used for imaging broadband light, leading to suboptimal image quality.
Innovation Solution
An optical apparatus that includes processing means to acquire and utilize optical information corresponding to the insertion or removal of wavelength filters, controlling the imaging process to maintain optimal performance regardless of filter type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If optical information optimized for narrowband light is used for broadband light imaging, then the imaging system can operate with a single set of optical parameters, but optical performance deteriorates and image quality decreases
Solution Approach 1:
The patent implements dynamic switching of optical information based on the wavelength filter state. The imaging system automatically selects between narrowband-optimized optical parameters and broadband-optimized optical parameters according to whether a wavelength filter is inserted or removed, enabling the system to adapt its parameters dynamically to match the current imaging conditions and maintain optimal performance.
Solution Approach 2:
The patent changes the optical parameters (such as focus lens drive amounts, image stabilizing lens drive amounts, and optical information) based on the wavelength filter configuration. By storing and switching between different sets of optical parameters optimized for different wavelength conditions, the system resolves the contradiction between maintaining simple parameter management and ensuring reliable optical performance across different imaging modes.
2Adaptability or versatility
If a wavelength filter is inserted to image narrowband light, then narrowband imaging capability is achieved, but optical path length changes cause focus and image stabilizing errors
Solution Approach 1:
The patent pre-calculates and stores correction data for optical path length differences caused by wavelength filter insertion. Before actual imaging with a wavelength filter, the system has already prepared the appropriate corrected focus lens drive amounts and image stabilizing lens drive amounts, enabling immediate compensation without delay and maintaining measurement precision across different wavelength conditions.
Solution Approach 2:
The patent implements a feedback mechanism where the system detects the wavelength filter insertion state and automatically retrieves the corresponding corrected optical parameters. This closed-loop approach ensures that focus accuracy and image stabilizing precision are maintained by continuously adapting to the current filter configuration through pre-prepared correction data.
3Reliability
If different optical information is used for different wavelength filters, then optimal image quality is maintained, but the system complexity increases
Solution Approach 1:
The patent creates a universal optical information management system that handles multiple wavelength filter types through a single integrated approach. By storing correction data for different filter types in a unified structure and using a common switching mechanism based on filter detection, the system achieves multi-functionality without proportionally increasing complexity, maintaining image quality across diverse imaging conditions.
Data Source
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AI summary
[PROBLEMS] To suppress deterioration of optical performance according to insertion/removal and type of wavelength filter. [SOLUTION MEANS] An optical apparatus 200 includes a processing means 203, 208 configured to perform processing regarding imaging in a case where a wavelength filter 201 configured to control a wavelength of imaging light incident on an image sensor 202 configured to capture an object image formed by an optical system 101 can be inserted or removed, and an acquiring means 208 configured to acquire optical information on the optical system that is used for the processing, the optical information corresponding to the wavelength of the imaging light according to at least one of insertion/removal and a type of the wavelength filter.