Light-Emitting Module Through-Hole Layout for Uniform Luminance
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Solution Overview
Problem
Existing light-emitting modules face challenges in reducing uneven luminance due to the direct emission of light from the light source, leading to regions being overly bright and varying light intensity.
Innovation Solution
A light-emitting module design incorporating a light source part, a light-transmitting member with separate first and second parts, and a light-adjusting member with a through-hole positioned away from the light source, where the light-transmitting member has a recess communicating with the through-hole, positioned lower than the light-adjusting member's surface, to adjust and distribute light emission effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If light is emitted directly from the light source, then light emission efficiency is high, but uneven luminance occurs with overly bright regions
Solution Approach 1:
A light-transmitting member is introduced as an intermediary between the light source and the external environment. This member includes a light-transmitting part that contacts the light source and a light-adjusting part with a through-hole, mediating the light transmission process to achieve both efficient light emission and uniform luminance distribution
Solution Approach 2:
The light-adjusting part introduces a vertical dimension with a through-hole structure, allowing light to be transmitted from the light source through multiple paths (directly and through the through-hole) to achieve uniform luminance distribution across the light-emitting surface
2Illumination intensity
If a light-adjusting member with through-hole is added, then luminance uniformity is improved, but device complexity increases
Solution Approach 1:
The light-adjusting part is merged with the light-transmitting member to form an integrated structure. The light-transmitting member includes both the light-transmitting part and the light-adjusting part with through-hole, reducing the number of separate components while maintaining luminance uniformity
Solution Approach 2:
The light-transmitting member serves multiple functions: it transmits light from the light source, adjusts light distribution through its through-hole structure, and provides structural support. This multi-functionality reduces overall device complexity despite adding light-adjusting capabilities
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 effectively reduces uneven luminance by adjusting the light distribution, preventing overly bright regions and enhancing light extraction efficiency, resulting in a more uniform and efficient light emission.
Implementation Method 1
a light-transmitting member including a first light-transmitting part and a second light-transmitting part
Implementation Method 2
the light-adjusting member includes a through-hole positioned away from the light source part in a plan view
Data Source
AI summary
A light-emitting module includes a light source part, a light-transmitting member including a first light-transmitting part and a second light-transmitting part, the second light-transmitting part is positioned at an upper side of the light source part and the first light-transmitting part, and a light-adjusting member located at an upper side of the light source part, the first light-transmitting part, and the second light-transmitting part, wherein the first light-transmitting part contacts a lateral surface of the light source part, the light-adjusting member includes a through-hole positioned away from the light source part in a plan view, the light-transmitting member includes a recess communicating with the through-hole, and at least a portion of the recess is positioned lower than a lower surface of the light-adjusting member.