Light Source Assembly for Wide Color Gamut Imaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current imaging devices have a limited color gamut due to the narrow range of colors that can be displayed by their light source assemblies, which fail to fully represent the colors perceived by the human eye.
Innovation Solution
A light source assembly that includes a light source component, a fluorescent excitation device, and a coupling device, where the fluorescent excitation device receives a first light beam to excite a second light beam, which is then coupled with the first light beam to create a third light beam containing a wider range of colors, including red, green, and blue, using quantum dot-fluorescent powders to enhance color representation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional light source assemblies with RGB lasers are used, then the device structure is simple, but the color gamut is narrow and cannot cover all colors sensed by human eyes
Solution Approach 1:
The light source assembly is segmented into multiple independent light sources (first light source emitting first light beam, second light source emitting second light beam) rather than using a single conventional light source. This segmentation allows each light source to be optimized for specific wavelength ranges, enabling broader color gamut coverage while maintaining manageable system complexity through modular architecture
Solution Approach 2:
The patent employs composite light emission by combining light beams from different light sources with distinct spectral characteristics. The first light beam and second light beam are combined to form a composite light output that covers a broader spectrum than individual sources, achieving enhanced color gamut through spectral composition
2Illumination intensity
If a single light source emits all three primary colors, then the device structure is simple, but the luminance and color representation are limited
Solution Approach 1:
The illumination function is segmented across multiple specialized light sources instead of relying on a single omnibus source. Each light source is optimized for specific spectral regions, allowing maximum luminance output in each band while collectively providing comprehensive color coverage and enhanced overall brightness
Solution Approach 2:
The patent utilizes time-sequential emission where the first light source and second light source emit light beams at different time intervals. This periodic action allows each light source to operate at full luminance capacity during its emission cycle, achieving high overall luminance through temporal multiplexing while simplifying the optical design
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 achieves a wider color gamut, allowing for the representation of more colors and improved luminance, with quantum dot-fluorescent powders providing a high light intensity and adaptable excitation spectrum, significantly enhancing the color representation capabilities of imaging devices.
Implementation Method 1
a fluorescent excitation device configured to receive the first light beam emitted by the light source component and excite a second light beam
Implementation Method 2
a coupling device configured to receive an incident light beam and couple the incident light beam into a third light beam
Data Source
AI summary
A light source assembly, an imaging device and an imaging method are provided. The light source assembly comprises a light source component emitting a first light beam; a fluorescent excitation device receiving the first light beam and exciting a second light beam; a coupling device receiving an incident light beam and coupling the incident light beam into a third light beam, wherein the incident light beam includes the second light beam or includes the second light beam and the first light beam. The imaging device comprises the above-mentioned light source assembly and a projection system receiving the third light beam. The imaging method comprises: generating a first light beam; exciting a second light beam by using the first light beam; coupling the second light beam into a third light beam or coupling the second light beam and the first light beam into a third light beam; and imaging with the third light beam. The light source assembly, imaging device and imaging method can represent more plentiful colors and have wider color gamut.