Light Guide Plate With Recessed Reflector for Uniform Logo Lighting
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Solution Overview
Problem
Existing vehicle logos cannot be lit up efficiently, requiring numerous light sources that occupy large spaces, are costly, and lack uniform lighting.
Innovation Solution
A light guide plate design that includes a light guide plate body with a light incident portion, a recessed portion acting as a reflecting surface, and a light guide tooth pattern, allowing light to be reflected and emitted uniformly, reducing the number of light sources and improving optical efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light sources are arranged to fully fill the entire logo inside the logo, then the logo can be lit up, but the space required is large and the cost is high
Solution Approach 1:
The patent introduces a light guide plate as an intermediary component between the light source and the logo display area. The light guide plate receives light from a concentrated light source and distributes it uniformly across the entire logo area through its optical properties, eliminating the need to place multiple light sources throughout the logo
Solution Approach 2:
The invention transitions from a two-dimensional arrangement of multiple light sources on the logo plane to a three-dimensional light guide plate structure that distributes light through its thickness and surface area, achieving uniform illumination without increasing the number of light sources
2Illumination intensity
If light sources are arranged to fully fill the entire logo inside the logo, then the logo can be lit up, but the space required is large
Solution Approach 1:
The light guide plate serves as a mediator that concentrates light from a small source area and distributes it across a larger display area, achieving full logo illumination without occupying additional space with multiple light sources
Solution Approach 2:
The light guide plate is implemented as a thin, flexible optical element that can be integrated into the logo structure without significantly increasing the overall space or thickness of the lighting assembly
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 design achieves uniform lighting with fewer light sources, reducing costs and optical loss, and enhancing lighting efficiency.
Implementation Method 1
a wall surface at the recessed portion is configured to be a reflecting surface; light incident into the light incident portion is adapted to be reflected by the reflecting surface to a side of the light guide plate body
Data Source
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AI summary
The present application relates to a signal lamp, and discloses a light guide plate. The light guide plate comprises a light guide plate body, wherein front and rear sides of the light guide plate body in a thickness direction are a first side and a second side respectively; one of the first side and the second side is provided with a light incident portion, and the other of the first side and the second side is partially recessed inward to form a recessed portion; the recessed portion is arranged corresponding to the light incident portion, and a wall surface of the recessed portion is configured to be a reflecting surface; one of the first side and the second side is formed as a light emitting surface, and the other of the first side and the second side is provided with a light guide tooth pattern; light incident into the light incident portion is adapted to be reflected by the reflecting surface to a side of the light guide plate body, and then reflected by the light guide tooth pattern on the side and emitted out of the light emitting surface. In addition, the present application further provides a signal lamp and a vehicle. The light guide plate can realize uniform light distribution and improve optical efficiency, and has a low cost.