Diffuse Reflection Lamp Structure for Glare and Heat Control
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Solution Overview
Problem
Conventional lamps emit light in a straight-down manner causing glare and eye dazzling, and when diffuse reflection is used, light cannot be completely irradiated on the reflector cup, leading to increased internal temperature and potential device damage.
Innovation Solution
A diffuse reflection light-emitting lamp structure with a reflector cup having a through channel and a light source board positioned at the outer peripheral side of the channel, where LEDs face the reflector cup, ensuring complete irradiation and diffuse reflection, and a radiator within the channel for heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a diffuser plate structure is applied to increase diffusion angle, then light diffusion is improved, but glare and eye dazzling become more serious
Solution Approach 1:
The patent inverts the conventional lighting approach by positioning light sources at the outer peripheral side of the reflector cup rather than at the center, and by having light emit toward the reflector cup surface rather than directly downward. This inversion allows light to be reflected diffusely at various angles, achieving light diffusion without the direct glare problems of conventional downlighting or diffuser plate approaches.
2Illumination intensity
If diffuse reflection is used to reduce glare, then light diffusion is improved, but light cannot be completely irradiated on the reflector cup, leading to increased internal temperature
Solution Approach 1:
The patent applies local quality by positioning light sources specifically at the outer peripheral side of the reflector cup, where they can irradiate light onto the reflector cup surface. This localized positioning ensures complete light irradiation on the reflector cup for effective diffuse reflection, while the peripheral arrangement prevents light blocking and ensures all light energy is utilized for reflection rather than being absorbed and converted to heat within the lamp structure.
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
Solves glare issues by uniform light distribution and effectively dissipates heat, preventing device damage.
Implementation Method 1
a reflector cup, the reflector cup integrally forming one through channel... light sources on the light source board are distributed at an outer peripheral side of the through channel, a light-emitting surface of the light source facing the reflector cup
Implementation Method 2
a radiator within the channel for heat dissipation
Data Source
AI summary
A diffuse reflection light-emitting lamp structure includes: a reflector cup, the reflector cup integrally forming one through channel, the through channel extending toward a direction of a cup opening; a light source board, the light source board being disposed at one end of the through channel that is close to the cup opening. Light sources on the light source board are distributed at an outer peripheral side of the through channel, and a light-emitting surface of the light source faces the reflector cup.