Light Source Unit Beam Overlap Deflection for Surface Protection
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Solution Overview
Problem
Conventional light source units face issues with focusing high-power light beams on a collection surface without damaging the surface and require complex configurations with multiple components, such as phosphors or optical fibers, due to peak intensity concentrations and component height discrepancies.
Innovation Solution
A light source unit design featuring a simplified configuration with a deflection element that overlaps and separates beams in specific directions to focus them on a collection surface, using a deflection element with tilted incident and emission surfaces to distribute beam intensity and reduce peak concentrations, and a second condensing optical element to reduce beam dispersion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If light sources are combined to emit high power exceeding several watts, then the optical output is improved, but the peak intensity concentration damages the light collection surface
Solution Approach 1:
The invention divides the light collection surface into multiple regions corresponding to each light source, and segments the beam combination process by using individual condensing lenses for each light source. This segmentation allows each beam to be focused separately onto its designated region, preventing peak intensity concentration at a single point and thereby preventing damage to the light collection surface while maintaining high total optical output.
Solution Approach 2:
The invention applies local quality by creating different optical paths and focusing conditions for different light sources. Each light source has its own condensing lens with specific focal length, and each beam is focused onto a specific region of the light collection surface. This localized approach ensures that each region receives appropriate intensity distribution, preventing damage while achieving high overall power output.
2Power
If multiple light sources are combined using conventional methods, then high power output is achieved, but the configuration becomes complex with multiple components
Solution Approach 1:
The invention merges multiple light sources and their corresponding condensing lenses into a single integrated package structure. All light sources are disposed within the same package, and all condensing lenses are positioned to face the light collection surface together. This merging approach achieves high power output from multiple combined light sources while maintaining a relatively simple and compact configuration, avoiding the need for complex external optical systems.
Solution Approach 2:
The package structure serves multiple functions simultaneously: it houses multiple light sources, provides mechanical support for all condensing lenses, maintains precise spatial relationships between components, and facilitates heat dissipation for all light-emitting elements. This multi-functional design achieves high power output from multiple light sources without increasing device complexity.
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
The solution allows for effective focusing of high-power beams on a collection surface while minimizing peak intensities and reducing the number of components, thereby preventing damage and simplifying the configuration.
Implementation Method 1
a deflection element that deflects at least one of the first beam or the second beam in a third direction perpendicular to the first direction and the second direction
Implementation Method 2
a first condensing optical element that focuses, on a light collection surface, the first beam and the second beam that are emitted from the deflection element
Data Source
AI summary
A light source unit includes: a first light emission point from which a first beam is emitted; a second light emission point from which a second beam is emitted and which is disposed apart from the first light emission point in a second direction perpendicular to a first direction; a deflection element that deflects the first and/or second beam; and a first condensing optical element that focuses, on a light collection surface, the first and second beams. The first beam at the first light emission point overlaps the second beam at the second light emission point in a third direction, and on the light collection surface, the first and second beams overlap each other in the second direction and are separate from each other in the third direction.