Light Consolidating Module for Compact Projection Illumination
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Solution Overview
Problem
Conventional illumination systems for projection devices are bulky due to numerous optical components, which increases weight and size, and fail to provide optimal color gamut and saturation.
Innovation Solution
A simplified illumination system comprising a light source module, light splitting module, light consolidating module, and waveband converting module, which uses dichroic elements and fluorescent materials to convert light beams, reducing the number of optical components and enhancing color performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional illumination systems use multiple converge lenses adjacent to LEDs for light consolidation, then light consolidation function is achieved, but the number of optical components increases and weight increases
Solution Approach 1:
The patent combines the light splitting function and light consolidating function into a single optical component (the light consolidating module with specific reflective surfaces). This merging eliminates the need for separate converge lenses adjacent to each LED, reducing the total number of optical components while maintaining both light splitting and consolidation functions effectively.
Solution Approach 2:
The light consolidating module is designed to perform multiple functions: it acts as both a light consolidating element and a light splitting element simultaneously. The specific geometric configuration of its reflective surfaces enables it to consolidate light from multiple LEDs while also splitting light paths for different color channels, replacing what would traditionally require multiple dedicated components.
2Illumination intensity
If conventional illumination systems use multiple converge lenses and optical components, then light consolidation is achieved, but the size of the illumination system increases
Solution Approach 1:
By merging the light splitting and light consolidating functions into a single integrated module, the patent significantly reduces the spatial footprint required. The consolidated design eliminates the need for multiple separate lens assemblies and their associated mounting structures, thereby reducing the overall area occupied by the illumination system.
Solution Approach 2:
The patent utilizes three-dimensional geometric configuration of the light consolidating module's reflective surfaces to achieve light manipulation functions that would traditionally require multiple two-dimensional lens elements. This dimensional approach allows light consolidation and splitting to occur within a more compact volumetric space.
3Illumination intensity
If conventional illumination systems use multiple optical components, then light consolidation function is provided, but device complexity increases
Solution Approach 1:
The patent merges multiple optical functions (light consolidation and light splitting) into a single integrated module, directly reducing the quantity of optical components. This consolidation simplifies the overall device architecture while maintaining the necessary light manipulation capabilities for effective illumination.
Solution Approach 2:
The light consolidating module is designed as a multi-functional component that simultaneously performs light consolidation and light splitting operations. This universality reduces device complexity by eliminating the need for separate dedicated components for each function, streamlining the optical system architecture.
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 system achieves a reduction in size and weight while providing better color gamut and saturation, with centralized light paths and improved light efficiency, suitable for compact projection devices.
Implementation Method 1
The waveband converting module at least includes a first waveband converting zone. The first light beam enters the light consolidating module through the first light input surface. The light consolidating module transmits the first light beam having an incident angle smaller than the predetermined angel to the first waveband converting zone so as to form the first light beam of a third waveband.
Implementation Method 2
The light consolidating module has a light output surface and a first light input surface. The light consolidating module reflects a light beam having an incident angle greater than a predetermined angel and allows a light beam having an incident angle smaller than the predetermined angel to pass through.
Data Source
AI summary
An illumination system includes a light source module, a light splitting module, a light consolidating module and a waveband converting module. The light source module has a first light source, which provides a first light beam of first waveband. The light splitting module has a first light splitting element and a second light splitting element. The first light splitting element allows the light beam of first waveband to pass through and reflects the light beam of second waveband. The second light splitting element allows the light beam of second waveband to pass through and reflects the light beam of first waveband. The light consolidating module reflects the light beam having an incident angle greater than a predetermined angel and allows the light beam having an incident angle smaller than the predetermined angel to pass through. The waveband converting module has a first waveband converting zone.