Dual Light Source Integration System for Uniform Color Mixing
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Solution Overview
Problem
Existing light integration systems struggle to effectively combine light from sources with different colors and overlapping spectra, leading to color non-uniformity and efficiency issues, particularly in applications like projectors where additional colors are required to achieve a desired output.
Innovation Solution
A system utilizing a beamsplitter and a light integrator, where the beamsplitter equally distributes light from two sources with different colors and overlapping spectra to their respective entrance faces, allowing for efficient combination and integration of light, minimizing energy loss and heating, and maintaining uniformity through the use of optical components like mirrors and lenses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If integrating rods or flys-eye lenses are used for light homogenization, then light uniformity is improved, but the length of the illumination path increases
Solution Approach 1:
The illumination path is segmented into multiple sections with light sources arranged in a matrix array, allowing light homogenization to be achieved through distributed sources rather than a single long integration path. The beam combiner segments and recombines light from multiple sources in a compact configuration.
Solution Approach 2:
Multiple light sources and optical components are nested within a compact housing structure, with the matrix array of light sources positioned to emit light toward the beam combiner in a space-efficient arrangement that reduces overall system length.
2Adaptability or versatility
If light sources with different colours and overlapping spectra are combined using existing integrator solutions, then colour enhancement is achieved, but colour non-uniformity and integration effectiveness deteriorate
Solution Approach 1:
Different regions of the system handle different colour wavelengths differently - the beam combiner is positioned and oriented to optimally combine specific colour ranges from different light sources, with each light source in the matrix array contributing specific colour characteristics to achieve overall colour uniformity.
Solution Approach 2:
The system changes the spatial and angular parameters of light from multiple sources with different colours and overlapping spectra, using the beam combiner to redirect and merge these light paths at optimized angles and positions to achieve uniform colour distribution that would not be possible with conventional integrators.
3Adaptability or versatility
If multiple light sources with overlapping spectra are combined, then colour output is improved, but energy loss and heating increase
Solution Approach 1:
Multiple light sources with overlapping spectra are merged through the beam combiner in a way that consolidates their output into a single unified beam, maximizing the utilization of light energy from all sources and minimizing waste through efficient optical path integration.
Solution Approach 2:
The system maintains continuous useful action by ensuring that light from all sources contributes productively to the final output throughout the illumination path, with the beam combiner and matrix array configuration designed to minimize idle or wasted light energy and reduce unnecessary heating.
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 ensures that light from different sources is combined uniformly in terms of color and intensity, reducing hot spots and variations in light distribution, thereby enhancing the efficiency and performance of light production systems.
Implementation Method 1
a beamsplitter (for example a 50/50 beamsplitter and/or a polarizing beamsplitter)... transmit about half of the first given colour of light from the first light source to the first light entrance face; reflect a remaining half of the first given colour of light from the first light source to the second light entrance face
Implementation Method 2
a light integrator that integrates the light from the two light sources after it is combined by the beamsplitter
Implementation Method 3
at least one body configured to integrate light... each of the first light entrance device and the second light entrance device configured to receive light and deflect the light into the at least one body and towards the light egress end
Data Source
AI summary
A dual light source enhanced integration system is provided. The system comprises: a first light source and a second light source with overlapping spectra; a light integrator configured to integrate light and having a first light entrance face and a second light entrance face; and, a beamsplitter system configured to about equally distribute light from each of the first light source and the second light source to each of the first light entrance face and the second light entrance face, such that the light from each of the first light source and the second light source is about equally combined at each of the first light entrance face and the second light entrance face.