Lighting Device with Synchronized Reflective Patterns and Holes
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Solution Overview
Problem
Existing lighting devices suffer from non-uniform light distribution and off-light images, limiting design freedom and optical reliability.
Innovation Solution
A lighting device comprising a substrate with a first reflective layer having reflection patterns and a second reflective layer with holes, where the arrangement of holes and patterns is synchronized to enhance light distribution and surface uniformity, with the holes penetrating through a transparent film and overlapping with reflection patterns to control light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional lighting devices are used, then the structure is simple, but the light distribution is non-uniform and off-light images occur
Solution Approach 1:
The reflective layer is segmented into multiple regions with different reflection angles, and the resin layer is segmented with through-holes at specific positions. This segmentation allows precise control over light distribution patterns, eliminating non-uniform lighting and off-light images while maintaining a relatively simple overall structure.
Solution Approach 2:
Different regions of the reflective layer are assigned different properties (different reflection angles) to control light distribution locally. The resin layer also has localized through-holes positioned to work with specific reflection regions. This local differentiation achieves uniform light distribution without requiring complex global structural changes.
2Length of moving object
If the lighting device thickness is reduced for slim design, then the device becomes compact, but surface uniformity deteriorates
Solution Approach 1:
The through-holes in the resin layer are positioned to overlap with or be adjacent to the reflective pattern regions. This nested arrangement allows multiple functional layers to occupy the same spatial envelope, achieving uniform surface illumination without increasing the overall device thickness.
Solution Approach 2:
Instead of increasing thickness to improve surface uniformity, the patent uses lateral positioning of through-holes and reflective patterns in the planar dimensions. The optical path is extended laterally rather than vertically, achieving surface uniformity while maintaining a slim profile.
3Manufacturing precision
If reflection patterns are added to control light distribution, then light distribution improves, but the device structure becomes more complex
Solution Approach 1:
The reflective layer with different reflection angle regions is merged with the resin layer containing through-holes into a single integrated optical system. This combination allows simultaneous control of light distribution and elimination of off-light images without adding separate complex components, as the two layers work together synergistically.
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
Improves light distribution characteristics, enhances surface uniformity, and provides customizable lighting effects, suitable for vehicle lamps and display devices.
Implementation Method 1
a first reflective layer disposed on the substrate and having a plurality of reflection patterns
Implementation Method 2
a second reflective layer disposed on the resin layer and having a plurality of holes
Implementation Method 3
the plurality of holes may be penetrated through the second reflective film
Implementation Method 4
a resin layer disposed on the first reflective layer
Data Source
AI summary
The lighting device disclosed at an embodiment of the invention includes a substrate; a first reflective layer disposed on the substrate and having a plurality of reflection patterns; a light source disposed on the substrate; a resin layer disposed on the first reflective layer, and a second reflective layer disposed on the resin layer and having a plurality of holes, wherein an arrangement form of the plurality of holes is the same as that of the plurality of reflection patterns.