Endoscope Light Source Wiring Length for Dimming Resolution
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Solution Overview
Problem
Existing endoscope light source devices face challenges in maintaining uniform temperature and precise control of light emission due to the length of wiring affecting pulse signal blunting, which impacts the dimming resolution and overall brightness.
Innovation Solution
A light source apparatus with a holder configuration that arranges light sources in decreasing order of dimming resolution, utilizing shorter wirings to connect them to a substrate, and incorporating a Peltier element and heat sink for efficient heat management, thereby maintaining uniform temperatures and reducing pulse signal blunting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If longer wiring is used to connect light sources to the substrate, then the light sources can be positioned further from the substrate, but the pulse signal experiences more blunting which reduces dimming resolution
Solution Approach 1:
The patent applies local quality by differentiating the wiring connections for different light sources based on their specific requirements. The first light source (requiring high dimming resolution) is connected via a shorter first wiring to minimize signal blunting, while the second light source (with lower dimming resolution requirement) is connected via a longer second wiring. This localized optimization of wiring length for each light source resolves the contradiction between positioning flexibility and dimming resolution.
2Adaptability or versatility
If multiple light sources with different dimming resolutions are used, then the overall lighting control flexibility is improved, but the wiring complexity and temperature uniformity become problematic
Solution Approach 1:
The patent implements local quality by assigning different wiring lengths to different light sources based on their specific dimming resolution requirements. The first light source receives a shorter wiring for precise control, while the second light source receives a longer wiring. This differentiated approach enables flexible lighting control across different scenarios while managing the complexity through purposeful differentiation rather than uniform design.
3Measurement precision
If light sources are arranged in decreasing order of dimming resolution, then the control precision is optimized, but the heat distribution uniformity becomes challenging
Solution Approach 1:
The patent applies parameter changes by systematically varying the wiring length parameter for each light source according to its dimming resolution requirements. The first light source is connected via a shorter first wiring while the second light source is connected via a longer second wiring. This parameter differentiation optimizes control precision for each light source while the overall arrangement maintains manageable heat distribution characteristics.
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
This configuration ensures accurate light emission control and uniform temperature maintenance of light sources, enhancing the endoscope's imaging capabilities by minimizing the impact of wiring length on pulse signal blunting.
Implementation Method 1
a Peltier element and a heat radiator are provided in the other portion (second portion), and absorb heat generated by the light sources to release the absorbed heat to the outside
Implementation Method 2
a Peltier element and a heat radiator are provided in the other portion (second portion), and absorb heat generated by the light sources to release the absorbed heat to the outside
Data Source
AI summary
A light source apparatus includes: a first light source; a second light source configured to emit light having a dimming resolution lower than a dimming resolution of the first light source; a holder configured to hold the first light source and the second light source on a first surface of the holder; a substrate provided to face a second surface of the holder, the second surface being different from the first surface, and a circuit configured to control driving of the first light source and the second light source being mounted on the substrate; a first wiring configured to electrically connect the first light source and the substrate; and a second wiring configured to electrically connect the second light source and the substrate, wherein a length of the first wiring is shorter than a length of the second wiring.