Endoscope Light Source Device Connection Verification
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Solution Overview
Problem
Endoscope light source devices fail to control illumination light appropriately when the image processing device is defective, leading to either excessively small or large light amounts entering the endoscope, which can result in inadequate observation or image halation and heat generation.
Innovation Solution
A light source device with connection detecting means to identify the status of the image processing device and endoscope, and illumination control means to set a predetermined light amount based on the detected endoscope type, ensuring a stable illumination even in cases of disconnection between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the device shutter method is used to control image brightness by adjusting accumulation time, then the illumination light amount can be maximized without controlling light output, but the light amount of illumination light cannot be appropriately controlled when connection defects occur
Solution Approach 1:
The system performs preliminary connection verification by detecting connection status before illumination control is executed. The connection verifying unit checks whether the image processing device is properly connected, and only allows maximum illumination output when connection is confirmed, preventing inappropriate light output due to connection defects
Solution Approach 2:
The system implements feedback control by continuously monitoring connection status through the connection verifying unit and adjusting illumination light amount accordingly. When connection is verified, maximum light output is permitted; when connection failure is detected, the system automatically reduces illumination to predetermined levels, creating a closed-loop control system that responds to connection conditions
2Illumination intensity
If maximum illumination light amount is supplied to the endoscope, then sufficient light for observation is provided, but image halation and heat generation occur when connection is defective
Solution Approach 1:
The connection verifying unit acts as an intermediary between the illumination control unit and the light source. It mediates the control signal by checking connection status and only allowing maximum illumination when connection is proper, thereby preventing harmful effects like image halation and heat generation that would occur with defective connections
Solution Approach 2:
The system applies preliminary anti-action by detecting connection status in advance and preventing maximum illumination output when connection is defective. The illumination control unit receives connection verification results and proactively adjusts light output to predetermined levels before harmful effects can occur, counteracting potential damage before it happens
3Ease of operation
If automatic light control means is implemented to adjust illumination according to image brightness, then optimal observation conditions are achieved, but the system cannot operate when image processing device connection is defective
Solution Approach 1:
The system implements dynamic operation modes that adapt to connection status. The illumination control unit can operate in automatic mode when connection is verified (adjusting light according to image brightness feedback), and automatically switches to predetermined light output mode when connection failure is detected, providing dynamic adaptability that maintains operation reliability across different connection conditions
Data Source
AI summary
An endoscope system of the present invention has a video processor and a light source device, and an endoscope can be connected thereto. And a control portion of the light source device detects connection with the endoscope and the video processor, detects connection with the video processor and the light source device and detects the type of the endoscope by an endoscope detection portion. And when non-connection of the endoscope and the video processor is detected, or non-connection of the video processor and the light source device is detected, the control portion controls so that the light amount of illumination light supplied from the light source device to the endoscope becomes a predetermined light amount according the detected type of the endoscope.