Slidable Light Distribution Adjustment for Flexible Illumination Angles
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Solution Overview
Problem
Existing light source devices struggle to efficiently adjust light distribution angles for illumination, as they often require complex and rigid setups that limit flexibility in achieving desired irradiation patterns and colors.
Innovation Solution
A light source device comprising a primary light source, a light guide, an optical conversion unit that converts primary light into secondary light with adjustable light distribution angles, and a slidable light distribution adjustment unit that adjusts the secondary light to achieve desired illumination light distribution angles, allowing for multiple operational modes such as wide, first narrow, and second narrow light distribution modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed optical conversion unit is used, then the device structure is simple, but the light distribution angle cannot be adjusted flexibly
Solution Approach 1:
The optical conversion unit is made slidable relative to the light guide, transforming it from a fixed structure to a dynamic adjustable structure. This allows the light distribution angle to be changed by moving the optical conversion unit to different positions, resolving the contradiction between adaptability and device complexity.
2Adaptability or versatility
If the optical conversion unit is made adjustable, then light distribution flexibility is improved, but the device complexity increases
Solution Approach 1:
The sliding mechanism provides dynamic adjustability with only one degree of freedom (movement along the optical axis), enabling multiple operational modes (wide, first narrow, second narrow light distribution) without requiring complex multi-axis adjustment mechanisms.
3Illumination intensity
If the optical conversion unit is positioned far from the light guide, then wide light distribution is achieved, but light transmittance decreases due to vignetting
Solution Approach 1:
The slidable optical conversion unit enables dynamic positioning to optimize the balance between light distribution angle and light transmittance. Depending on the required illumination pattern, the unit can be positioned at optimal distances from the light guide, achieving either wide distribution or high transmittance as needed.
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
Enables flexible adjustment of light distribution angles, maintaining high light transmittance and efficient emission of illumination light with desired characteristics, reducing vignetting and allowing for various applications like medical or industrial endoscopes.
Implementation Method 1
an optical conversion unit that converts the primary light emitted from the light guide and having a first light distribution angle into secondary light having a second light distribution angle different from the first light distribution angle
Data Source
AI summary
A light source device includes a primary light source that emits primary light, a light guide that guides the primary light, an optical conversion unit that converts the primary light emitted from the light guide and having a first light distribution angle into secondary light having a second light distribution angle and emits the secondary light, and a light distribution adjustment unit that adjusts the secondary light to illumination light having a third light distribution angle and emits the illumination light. The light distribution adjustment unit and the optical conversion unit slide each other. The light distribution adjustment unit allows a light distribution adjustment amount for adjusting the second light distribution angle of the secondary light to adjust to the third light distribution angle of the illumination light.