LED Light Module Layout for Uniform Color Mixing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current LED photography and video lights face issues with uneven luminous color distribution and increased substrate area due to the arrangement of multiple light-emitting chips, which hinders color uniformity and miniaturization.
Innovation Solution
A circular substrate with symmetrical light-emitting regions and staggered arrays of red, green, and blue light-mixing chip groups, along with alternating warm-cool chip groups, to ensure even distribution and compact arrangement of chips, enhancing light mixing and luminous uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple light-emitting chips of different colors are arranged on the substrate, then the luminous color can be adjusted, but the luminous color uniformity deteriorates
Solution Approach 1:
The substrate is divided into multiple light-emitting regions, with each region containing a specific arrangement of light-emitting chips. This segmentation allows different regions to emit different colors while maintaining overall color uniformity across the entire substrate surface.
Solution Approach 2:
Different light-emitting regions are assigned different color characteristics based on the specific arrangement of red, green, and blue light-emitting chips in each region. This local quality approach enables precise control of luminous color distribution across the substrate.
2Manufacturing precision
If rotational placement methods are used to address luminous uniformity, then color uniformity improves, but the substrate area increases
Solution Approach 1:
The patent transitions from conventional linear or grid arrangements to a radial arrangement of light-emitting chips around a central axis. This dimensional change in the arrangement pattern enables better light mixing and color uniformity while maintaining a compact circular substrate footprint.
Solution Approach 2:
The substrate adopts a circular geometry with light-emitting chips arranged in radial patterns around a central axis. This curved, radial arrangement improves light distribution and color uniformity while minimizing the substrate area compared to flat rectangular arrangements.
3Area of stationary object
If light-emitting chips are arranged in a compact pattern, then substrate area is reduced, but gaps between chips increase
Solution Approach 1:
The radial arrangement of light-emitting chips around a central axis in circular light-emitting regions eliminates gaps between chips while maintaining compact substrate area. This dimensional reorganization allows continuous light emission patterns without dead zones.
Solution Approach 2:
Multiple light-emitting chips of different colors are merged into integrated light-emitting regions arranged radially. This merging approach ensures continuous light coverage without gaps while maintaining compact substrate dimensions.
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 improved luminous uniformity and reduces the substrate area, facilitating miniaturization while maintaining effective light mixing for photography and video applications.
Implementation Method 1
each light-mixing chip group includes a red light chip, a green light chip, and a blue light chip
Data Source
AI summary
An LED light source module (100) includes a substrate (10) and light mixing chip groups (20). A first light emitting area (101) and a second light emitting area (102) are symmetrically arranged on the surface of the substrate (10) with respect to a reference axis (11). The plurality of light mixing chip groups (20) are arranged in the first light emitting area (101) and the second light emitting area (102) in an array. Chips arranged in the light mixing chip groups (20) in the first light emitting area (101) and chips arranged in the light mixing chip groups (20) in the second light emitting area (102) are symmetrically arranged with respect to the reference axis (11). Two adjacent columns of light mixing chip groups (20) are arranged in offset positions, and two adjacent rows of light mixing chip groups (20) are arranged in offset positions.