Hybrid LED Laser Light Source Apparatus for Projection Brightness
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Solution Overview
Problem
Current LED source projection systems face issues of low brightness and limited color gamut due to light energy loss during the projection process, making it difficult to enhance color performance and expand the color gamut.
Innovation Solution
The integration of a laser source assembly with the LED source assembly in the light source apparatus, where the laser beam is combined with the three-color beam from the LED source, enhances brightness and color performance without altering the LED source structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If LED source assembly is used in projection system, then structure is simplified and lifespan is extended, but brightness is reduced and color gamut is limited
Solution Approach 1:
The patent combines LED source assembly and laser source assembly into a hybrid light source system. The LED sources (red, green, blue) and laser sources (red, green, blue) work together through beam combination assemblies to produce the final projection light, merging the advantages of both technologies to achieve high brightness and extended lifespan simultaneously.
2Device complexity
If LED source assembly is used in projection system, then structure is simplified, but color gamut is limited
Solution Approach 1:
The patent merges LED sources and laser sources in a hybrid configuration where both types of light sources contribute to the final output. The beam combination assemblies integrate the light from LED sources and laser sources, enabling the system to achieve an expanded color gamut while maintaining relatively simplified structure through modular design.
3Illumination intensity
If laser source assembly is added to increase brightness, then brightness and color gamut are improved, but device complexity increases
Solution Approach 1:
The patent segments the light source system into distinct functional modules: LED source assembly, laser source assembly, and beam combination assemblies. Each module performs a specific function, and the modular architecture allows for independent optimization and maintenance, reducing the impact of increased complexity while achieving high brightness and expanded color gamut.
4Illumination intensity
If laser source is added to LED source system, then brightness and color performance are enhanced, but energy consumption increases
Solution Approach 1:
The patent implements a hybrid light source system where laser sources supplement rather than completely replace LED sources. The beam combination assemblies merge the output of both light source types, allowing the system to achieve enhanced brightness and color performance through partial contribution from high-efficiency laser sources while maintaining the cost-effective LED components, thus balancing energy consumption with performance improvement.
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 increases the brightness of the light source, expands the color gamut, and improves color performance by adjusting the ratio of the laser source to the LED source, while maintaining a compact and energy-efficient design.
Implementation Method 1
The first beam combination assembly combines a three-color beam emitted from the LED source assembly with a laser beam emitted from the laser source assembly
Data Source
AI summary
Disclosed are a light source apparatus and a projection system. The light source apparatus includes: a LED source assembly including a first LED source, a second LED source, a third LED source and a fourth LED source, a laser source assembly configured to emit a laser beam, a first beam combination component and a second beam combination component. The first LED source and the laser source assembly are arranged with their light emitting directions being perpendicular. The second beam combination component is configured to combine the beam emitted from the first LED source and the laser beam. The first beam combination component is configured to reflect one of the two incident beams whose light incident directions are perpendicular and to transmit the other of the two incident beams whose light incident directions are perpendicular.