Lighting Device Two-Stage Optical Lens Scattering Layer
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Solution Overview
Problem
Conventional energy-saving electric bulbs have limited lighting angles and uneven light distribution, resulting in decreased lighting efficiency and aesthetic quality.
Innovation Solution
A lighting device comprising an optical lens with a scattering layer, where light beams are reflected and refracted by the lens and then scattered by the layer, providing a two-stage distribution and increased lighting angle for improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional light emitting member is used, then the structure is simple, but the lighting angle is limited to about 120 degrees
Solution Approach 1:
An optical lens is introduced as an intermediary component between the light emitting member and the surrounding space. The lens has a specific curved surface design that refracts and redirects light beams, expanding the lighting angle from the conventional 120 degrees to a full 360-degree coverage while maintaining a relatively simple overall structure.
Solution Approach 2:
The optical lens employs a curved surface with specific radii of curvature to control light distribution. The curved geometry enables light beams to be redirected in multiple directions, achieving uniform 360-degree lighting coverage and resolving the limitation of fixed-angle emission from conventional light sources.
2Illumination intensity
If light beams are emitted directly without distribution, then the structure is simple, but the light distribution is uneven and smoothness is poor
Solution Approach 1:
A scattering layer is introduced as an intermediary between the optical lens and the external environment. This layer contains scattering particles that randomly redirect light beams, transforming the light distribution from uneven direct emission to uniform diffuse illumination, thereby achieving smooth and even light distribution.
Solution Approach 2:
The scattering layer is designed with a porous structure containing scattering particles distributed throughout. This porous configuration allows light beams to interact with multiple scattering centers, creating uniform light distribution through multiple scattering events while maintaining a relatively simple layer structure.
3Loss of energy
If light beams pass through a semi-spherical cavity, then optical loss is reduced, but the manufacturing precision requirement increases
Solution Approach 1:
The cavity is designed with a semi-spherical geometry that allows light beams to pass through with minimal reflection and scattering losses. The specific curved surface configuration optimizes light transmission by reducing optical interfaces and minimizing reflection points, thereby reducing overall optical loss.
Solution Approach 2:
The semi-spherical cavity is pre-formed as an integral part of the optical lens structure during the molding process. This preliminary formation of the cavity geometry eliminates the need for separate precision machining steps, reducing manufacturing complexity while maintaining the optical benefits of the semi-spherical shape.
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 enhances lighting efficiency by ensuring even and smooth light distribution in various angles, addressing the limitations of conventional bulbs with improved lighting coverage and aesthetic appeal.
Implementation Method 1
light beams which are reflected and/or refracted by the optical lens
Implementation Method 2
light beams which are reflected and/or refracted by the optical lens
Implementation Method 3
the light beams of the lighting module are scattered and diverged in different angles and directions evenly and smoothly
Data Source
AI summary
A lighting device includes an optical lens, a scattering layer mounted on an outer surface of the optical lens, and a lighting module mounted on the optical lens and emitting a plurality light beams which are reflected and/or refracted by the optical lens and are reflected and/or refracted by the scattering layer. Thus, the light beams of the lighting module are initially reflected and/or refracted by the optical lens and are then reflected and/or refracted by the scattering layer so that the light beams of the lighting module are distributed in a two-stage manner by the optical lens and the scattering layer and are scattered and diverged in different angles and directions evenly and smoothly so as to provide a fully developed lighting effect, thereby enhancing the lighting efficiency of the lighting device.