Medical Observation System Illumination Control via Angle Detection
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Solution Overview
Problem
Conventional medical observation systems, such as surgical microscopes and endoscopes, face issues with continuous illumination leading to unnecessary light emission, which can cause inconvenience and potential eye exposure to surrounding personnel, especially when the observation position is changed.
Innovation Solution
A medical observation system incorporating an imaging unit, a light output unit, a determining unit, and an illumination controller that adjusts illumination based on detected angles, grasping status, object distance, and predefined ranges to minimize light emission to surrounding areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the illumination light is constantly turned on to ensure continuous observation capability, then the observation quality is maintained, but the possibility of illumination light accidentally emitting to surrounding areas and entering eyes increases
Solution Approach 1:
The system uses a detecting unit to detect the angle of the capturing direction and provides feedback to the illumination controller. Based on this feedback, the illumination controller automatically adjusts the illumination light state (turning off or reducing intensity) when the angle falls outside the predetermined range, thereby preventing accidental exposure to surrounding personnel while maintaining observation quality when needed.
Solution Approach 2:
The illumination light state is made dynamic rather than static. The system continuously monitors the capturing direction angle and automatically adjusts the illumination light intensity or state in real-time based on the detected angle, transitioning between on/off or high/low intensity states to balance observation needs with safety.
2Object-affected harmful factors
If the illumination light is turned off each time the observation position is changed to prevent accidental exposure, then the safety is improved, but the operation convenience deteriorates due to repeated manual operations
Solution Approach 1:
The system performs self-service by automatically detecting the capturing direction angle and controlling the illumination light state without requiring manual intervention. The detecting unit and illumination controller work together to autonomously adjust the illumination based on the observed angle, eliminating the need for repeated manual on/off operations by the user.
Solution Approach 2:
The system establishes a feedback loop where the detecting unit continuously monitors the capturing direction angle and provides real-time feedback to the illumination controller. This automatic feedback mechanism replaces manual operations, improving convenience while ensuring safety through continuous angle-based control adjustments.
3Measurement precision
If the illumination light intensity is increased to improve observation clarity, then the observation precision is improved, but the harmful effect of light exposure to surrounding areas increases
Solution Approach 1:
The system applies different illumination qualities to different situations based on the capturing direction angle. When the angle is within the predetermined range (pointing toward the observation target), high-intensity illumination is provided for clear observation. When the angle falls outside the range (pointing toward surrounding areas), the illumination is turned off or reduced to low intensity, thereby preventing harmful exposure while maintaining observation clarity when needed.
Data Source
AI summary
A medical observation system, a control method, and a program are provided, which are capable of easily reducing the possibility that illumination light directly enters an eye by accident. A medical observation system 1 includes: an imaging unit 21 that captures an object and generates an image signal; a light output unit 22 that outputs illumination light in a capturing direction of the imaging unit 21; a determining unit 942 that determines the usage state of the imaging unit 21; and an illumination controller 944 that controls illumination light emitted by the light output unit 22 based on a determination result of the determining unit 942.