Lighting Lamp Light Extinction Cavity Stray Light Management
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Solution Overview
Problem
Existing lighting lamps suffer from stray light issues, leading to glare and reduced optical efficiency due to the scattering of light emitted by light sources, which affects the overall lighting effect.
Innovation Solution
A lighting module comprising a light source module and a light extinction grille with a light extinction cavity, where the light source module includes LEDs and lenses, and the light extinction grille is designed to absorb and weaken stray light by directing it through a structured light extinction cavity, improving light utilization and reducing glare.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light sources are used to provide illumination, then lighting function is achieved, but stray light is generated causing glare and reduced optical efficiency
Solution Approach 1:
The patent converts the harmful stray light into a beneficial component by using a light extinction cavity with specific geometric structure. The cavity receives stray light and redirects it through its bottom surface to the light exiting port, transforming the harmful scattered light into useful illumination that contributes to the overall lighting effect.
Solution Approach 2:
The patent segments the light path into distinct functional zones: a light source region, a light extinction cavity region, and a light exiting port region. The cavity is divided into side walls and a bottom surface, each performing specific functions in managing light paths to separate useful light from harmful stray light.
2Area of stationary object
If light sources emit light in all directions, then complete coverage is achieved, but optical efficiency is reduced due to light scattering
Solution Approach 1:
The patent converts the energy loss from light scattering into a benefit by capturing the scattered light within the extinction cavity and redirecting it through the bottom surface to the light exiting port. This transforms what would be wasted energy into useful illumination, improving overall optical efficiency.
Solution Approach 2:
The patent addresses the three-dimensional light scattering problem by introducing a cavity structure with a bottom surface that redirects light in a different dimensional path. The cavity geometry transforms light paths from radial scattering to a more controlled three-dimensional distribution that exits through the port.
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 stray light, enhancing the lighting effect and eliminating glare, thereby improving the utilization of light and providing a more focused and efficient lighting experience.
Implementation Method 1
the first light enters the light guide plate through the outer peripheral surface, and exits the light guide plate through the first plate surface
Data Source
AI summary
The present disclosure discloses a lighting lamp, the lighting lamp includes a housing, a control system and a first light source module, the housing has a light exiting port, the first light source module includes a light guide plate and a first red green blue (RGB) light source, the control system controls the first RGB light source to emit first light of a first predetermined color, the light guide plate is installed on the light exiting port, the light guide plate includes a first plate surface facing outside of the housing, a second plate surface facing inside of the housing, and an outer peripheral surface connecting the first plate surface and the second plate surface, the first RGB light source faces the outer peripheral surface, wherein the first light enters the light guide plate through the outer peripheral surface, and exits the light guide plate through the first plate surface.