Optical Element with Segmented Lenses for Uniform LED Lighting
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing LED lighting fixtures face challenges in achieving uniform light emission, particularly in covering the entire light emergent surface of lamp housings, with corner or edge portions often being darker due to a fixed arrangement between LED light-emitting units and lenses, which limits illumination intensity and uniformity.
Innovation Solution
A light source circuit and lighting device design featuring a substrate with distinct light source connection regions and an optical element with corresponding lenses, including a circular ring-shaped first lens and arc-shaped second lenses, allowing for adjustable light distribution to ensure uniform light coverage across the lamp housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a fixed arrangement between LED light-emitting units and lenses is used, then the device structure is simple, but the light emission uniformity deteriorates with dark regions in corner or edge portions
Solution Approach 1:
The patent divides the optical element into multiple independent lenses (first lens and second lens) corresponding to different light source connection regions. This segmentation allows each lens to independently control light distribution to specific areas, solving the uniformity problem while maintaining structural simplicity through modular design.
Solution Approach 2:
The patent applies different optical designs to different regions: the first lens serves the first light source connection region while the second lens serves the second light source connection region. This local optimization ensures that each region receives appropriate light distribution, eliminating dark corners and edges while keeping the overall device structure manageable.
2Illumination intensity
If multiple light sources and corresponding lenses are arranged, then the light emission uniformity is improved, but the device complexity increases
Solution Approach 1:
The patent combines multiple light sources and multiple lenses into an integrated assembly where the first light source with first lens and second light source with second lens work together on a single substrate. This merging approach achieves uniform light emission while managing device complexity through systematic integration rather than scattered components.
Solution Approach 2:
The substrate serves multiple functions: it supports the light sources, provides mounting positions for lenses, and facilitates electrical connections. This multi-functionality reduces the need for additional structural elements, achieving uniform light emission without proportionally increasing device complexity.
3Illumination intensity
If light distribution is adjusted to cover entire surface, then the light emission uniformity is improved, but the illumination intensity control becomes more difficult
Solution Approach 1:
The patent enables dynamic adjustment of light distribution by allowing selective activation or dimming of different light sources and lenses. This dynamic control capability permits flexible illumination intensity management while maintaining uniform light emission across the entire surface through programmable control of individual components.
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 enables uniform light emission by adjusting the light distribution, preventing dark regions and excessive brightness, thus enhancing the lighting fixture's performance in both illumination intensity and uniformity.
Implementation Method 1
an optical element assembled on the substrate... the optical element may be provided with a first lens corresponding to the first light source connection region and may be provided with a plurality of second lenses corresponding to the second light source connection region
Data Source
AI summary
The present disclosure discloses a light source circuit and a lighting device. The light source circuit includes: a substrate, a light source mounted on a surface of the substrate, and an optical element assembled on the substrate; the substrate is provided with a first light source connection region and a second light source connection region; the optical element is provided with a first lens corresponding to the first light source connection region and is provided with a plurality of second lenses corresponding to the second light source connection region; and the light source at least includes a first light source arranged on the first light source connection region.