Light Source Layout With Through-Hole Connector for Uniform Luminance
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Solution Overview
Problem
Existing light source devices struggle to achieve high accuracy in luminance adjustment due to limitations in arranging light sources at higher densities without obstructing emitted light.
Innovation Solution
A light source device comprising a substrate with a through-hole, multiple light sources on the front surface, a connecter with a main body inserted through the substrate, and wiring lines connecting the light sources to the connecter's terminals, allowing for high-density light source arrangement without blocking emitted light.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light sources are arranged at higher density to improve luminance adjustment accuracy, then luminance control precision is improved, but the connector may block emitted light
Solution Approach 1:
The connector main body is inserted into a through-hole formed in the substrate, nesting the connector within the substrate structure. This allows the connector to be positioned below the light emission surface, preventing it from blocking emitted light while still providing electrical connections to high-density light sources arranged on the substrate front surface.
Solution Approach 2:
The connector is transitioned from a surface-mounted configuration to a through-hole embedded configuration, moving it to a different spatial dimension (below the substrate surface). This dimensional change eliminates the light blocking issue while preserving electrical connectivity to densely arranged light sources.
2Measurement precision
If light sources are arranged at higher density, then luminance adjustment accuracy is improved, but the area occupied by the connector increases
Solution Approach 1:
By nesting the connector main body within the through-hole of the substrate, the connector's footprint on the substrate surface is minimized. The connector occupies space within the substrate thickness rather than expanding the substrate area, allowing light sources to be arranged at higher density on the front surface.
Solution Approach 2:
The connector is repositioned from a two-dimensional surface occupation to a three-dimensional through-hole embedding. This moves the connector's volume into the substrate thickness dimension, freeing up surface area for higher-density light source arrangement while maintaining electrical connectivity.
Data Source
AI summary
An optical device is provided that achieves excellent light emitting performance while including a plurality of light sources disposed at higher density. The light source device includes a substrate, a plurality of light sources, a connecter, and wiring lines. The substrate includes a front surface and a rear surface on an opposite side of the front surface in a thickness direction. The substrate has a through-hole. The plurality of light sources is provided on the front surface of the substrate. The connecter includes a main body inserted in the through-hole of the substrate and a plurality of first terminals provided on the main body. The wiring lines each couple corresponding one of the plurality of light sources and corresponding one of the plurality of first terminals to each other. The wiring lines are provided on the front surface.