Light Guide Plate With Inclined Reflection Surface
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Solution Overview
Problem
Conventional light emitting devices for game machines require separate LED boards for front and side light guide plates, leading to reduced space efficiency and increased cost, as they cannot efficiently emit light over a wider area on the side surface while maintaining aesthetic design and cost considerations.
Innovation Solution
A light emitting device with multiple light guide plates disposed at different angles, where the ends of adjacent plates are butted together, and one end surface is formed as an inclined surface with a reflection function to change the light path, allowing shared LED boards for multiple light emitting surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If separate light guide plates are provided for front and side surfaces, then light can be emitted over wider areas on the side surface, but space efficiency is reduced and cost increases
Solution Approach 1:
The patent merges the functions of multiple light guide plates into a single integrated light guide plate structure. The plate incorporates multiple light emitting surfaces (front surface, side surfaces, and end surfaces) that can be illuminated by a single LED board, eliminating the need for separate light guide plates for different surfaces.
Solution Approach 2:
The single light guide plate is designed to perform multiple functions simultaneously: it emits light from the front surface, side surfaces, and end surfaces. This multi-functional design allows one component to replace what would traditionally require multiple separate components, improving space efficiency while maintaining comprehensive light emission capability.
2Illumination intensity
If separate LED boards are provided for front and side light guide plates, then each surface can be independently illuminated, but space efficiency is reduced and cost increases
Solution Approach 1:
The patent combines the illumination functions for multiple surfaces into a single LED board. The LED board is positioned to illuminate the entire light guide plate structure, which then distributes light to all emitting surfaces (front, side, and end surfaces) through its integrated design.
Solution Approach 2:
The single LED board serves as a universal light source for the entire light guide plate assembly. It provides illumination for multiple light emitting surfaces simultaneously, replacing what would traditionally require multiple separate LED boards for different surfaces.
3Shape
If the portion other than light emitting surface is minimized for aesthetic design, then appearance is improved, but installation flexibility is reduced
Solution Approach 1:
The patent utilizes three-dimensional light emission by incorporating side surfaces and end surfaces as additional light emitting areas. This allows the light guide plate to emit light from multiple dimensions (front, sides, and ends), providing aesthetic flexibility and installation adaptability without requiring additional components that would compromise appearance.
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
This configuration enhances space efficiency and reduces costs by allowing multiple light emitting surfaces with different angles to share a common LED board, improving illumination impact while maintaining a compact design.
Implementation Method 1
light emitted from a light source unit is made to be incident on an end surface of a light guide plate, the light is reflected by a prism provided on the back surface of the light guide plate, and is emitted from the front surface of the light guide plate
Implementation Method 2
one of the end surfaces of the ends that are butted against each other in the plurality of light guide plates is formed as an inclined surface with a reflection function that changes the angle at which the light is guided and causes the light to be incident on the adjacent light guide plate
Data Source
AI summary
A right side portion, which is a light emitting device, comprises a side light guide plate and a front light guide plate as a plurality of light guide plates in which light is reflected by a prism and emitted from a light emitting surface. The side light guide plate and the front light guide plate are disposed in a row in a state in which the angles of the light emitting surfaces differ between adjacent light guide plates and the ends of adjacent light guide plates are butted against each other. An LED board is disposed at the end of the side light guide plate, and the end surface of one of the ends of the side light guide plate and the front light guide plate that are abutted against each other is formed as an inclined surface with a reflection function that changes the angle at which the light is guided and causes the light to be incident on the adjacent light guide plate.