Solid Optical Element Lighting for Non-Uniform Light Distribution
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Solution Overview
Problem
Conventional lighting devices requiring liquid circulation means have complex structures and limited ability to produce light with non-uniform intensity distributions.
Innovation Solution
A lighting device utilizing a light source and optical elements formed of crystalline or amorphous solids to refract light, emitting it with a non-uniform intensity distribution without rotational symmetry, eliminating the need for liquid circulation and simplifying the structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a liquid circulation means is used to undulate the liquid surface for producing fluctuation light, then light with non-uniform intensity distribution can be emitted, but the device structure becomes complicated
Solution Approach 1:
The patent replaces the mechanical liquid circulation system with a solid optical element that uses optical refraction to achieve the same light redistribution effect. The solid optical element with specifically designed surface shapes (convex or concave) refracts light to produce non-uniform intensity distribution without requiring any moving parts or circulation mechanisms.
Solution Approach 2:
The patent changes the physical state parameter from liquid to solid, and modifies the optical parameters by designing specific surface curvatures (convex or concave) on the solid optical element. This allows the solid element to refract light in a way that produces the desired non-uniform intensity distribution, achieving the same functional effect as the liquid system but with a simpler, stationary structure.
2Illumination intensity
If a liquid circulation means is provided outside the hollow panel, then light fluctuation can be achieved, but the overall device structure becomes more complex
Solution Approach 1:
The patent merges the light-modifying function directly into the optical element itself, eliminating the need for a separate liquid circulation system. The solid optical element with its specially designed surfaces performs both the light refraction and intensity distribution functions in a single integrated component, simplifying the overall device structure.
Solution Approach 2:
The patent extracts and eliminates the liquid circulation means from the system, replacing it with a stationary solid optical element. This removes the complex circulation infrastructure while retaining the essential light-modifying function through optical refraction in the solid medium.
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 device achieves light irradiation with non-uniform intensity distribution while maintaining a relatively simple structure, enhancing light utilization efficiency and reducing stray light noise.
Implementation Method 1
The at least one optical element is provided so as to refract the light incident from the incidence surface to emit light having a non-uniform intensity distribution from the emission surface
Data Source
AI summary
A lighting device includes a light source, and an optical element formed of a crystalline or amorphous solid. The optical element includes an incidence surface on which light emitted from the light source is incident, and an emission surface from which the light incident from the incidence surface is emitted toward an irradiation surface. When viewed in an optical axis direction of the light source, the light source is disposed inside respective outer peripheral edges of the incidence surface and the emission surface of the optical element. The optical element is provided so as to refract the light incident from the incidence surface to emit light having a non-uniform intensity distribution from the emission surface to the irradiation surface.