Optical Imaging Control With Wavelength-Filter-Specific Parameters

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Solution Overview

Problem

Optical performance deteriorates when optical information optimized for narrowband light imaging is used for broadband light imaging, leading to suboptimal image quality.

Innovation Solution

An optical apparatus that includes a processor to acquire and utilize optical information corresponding to the insertion or removal state and type of a wavelength filter, enabling precise control of imaging light wavelength, thereby optimizing the imaging process.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If optical information optimized for narrowband light imaging is used for broadband light imaging, then imaging can be performed with existing optical parameters, but optical performance deteriorates and image quality decreases

Engineering Contradiction:
Improveimaging capabilityVSAvoidoptical performance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent implements dynamic switching of optical information based on the wavelength filter state. The system stores multiple sets of optical information (focus lens driving amounts, image stabilizing lens driving amounts, etc.) corresponding to different wavelength conditions (narrowband vs broadband) and selectively applies the appropriate set based on whether the wavelength filter is inserted or removed, ensuring optimal optical performance for each imaging mode

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes optical parameters (focusing position, image stabilizing characteristics) according to the wavelength filter state. By detecting whether the wavelength filter is inserted and selecting corresponding optical information from storage, the system adjusts parameters to match the actual light conditions, preventing performance deterioration

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a wavelength filter is inserted to control wavelength for narrowband light imaging, then narrowband light such as infrared light can be imaged, but the optical path length changes and requires correction

Engineering Contradiction:
Improvewavelength control capabilityVSAvoidoptical path correction mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent pre-calculates and stores the corrected optical information (focus lens driving amounts, image stabilizing lens driving amounts) that account for wavelength filter insertion effects. Instead of performing real-time complex optical path corrections, the system simply selects the pre-prepared optical information corresponding to the filter state, simplifying the control mechanism while maintaining accuracy

Inventive Principle:
Principle #10Preliminary action

3Reliability

If optical information is optimized for each wavelength condition, then high-quality captured images can be obtained, but the system requires multiple sets of optical information and increased complexity

Engineering Contradiction:
Improveimage qualityVSAvoidoptical information management
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent creates a universal optical information storage system that handles multiple wavelength conditions (narrowband with wavelength filter, broadband without filter) using a single integrated approach. The storage unit accommodates different types of optical information, and the selection unit automatically chooses the appropriate one based on filter state, making the system multi-functional without proportionally increasing complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

Ensures high-quality captured images by maintaining optimal optical performance regardless of the presence or type of the wavelength filter, enhancing image quality across different light conditions.

Implementation Method 1

a wavelength filter configured to control a wavelength of imaging light incident on an image sensor

Methodology Applied
Scientific EffectOptical filtering: Filter (optical)

Data Source

PatentUS20250287097A1Optical apparatus
Publication Date: 2025.09.11 CANON KK
  • US20250287097A1 patent drawing
  • US20250287097A1 patent drawing
  • US20250287097A1 patent drawing

AI summary

An optical apparatus includes at least one processor that executes instructions to perform processing regarding imaging in a case where a wavelength filter configured to control a wavelength of imaging light incident on an image sensor configured to capture an object image formed by an optical system can be inserted or removed, and 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 an insertion or removal state of the wavelength filter, the insertion or removal state defining whether the wavelength filter is inserted into or removed from an optical axis of the optical system, and a type of the wavelength filter.