Wedge-shaped light guide plate with diffusion function and panel lamp with wedge-shaped light guide plate

Abstract

The invention discloses a wedge-shaped light guide plate with a diffusion function and a panel lamp with the wedge-shaped light guide plate, the wedge-shaped light guide plate with the diffusion function comprises a substrate, the substrate is provided with two opposite surfaces, namely a front surface and a back surface, the front surface is defined as a light-emitting surface, the front surface is a plane, and the back surface is an inclined surface; at least one of the front surface and the back surface is a concave-convex surface with a light diffusion function, and the concave-convex surface is an uneven rough surface formed by concave parts and convex parts; a plurality of light guide points are arranged in the substrate; and the panel lamp further comprises a back plate, a buffer layer, a reflecting layer, a lamp frame, a buffer strip and a U-shaped clamping frame. Therefore, the light guide plate has light guide and diffusion functions under the condition that the same light guide efficiency is achieved and materials are saved, the front face of the light guide plate can be a hard face subjected to hardening treatment, the front face of the light guide plate can be prevented from being scratched, and the service life of the light guide plate is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lamps, and in particular relates to a light guide plate and a flat lamp with the light guide plate. Background technique [0002] The light guide plate is a high-tech product that converts linear light sources into surface light sources. The light guide plate in the prior art uses an optical-grade acrylic (PMMA) plate, and then prints light-guiding points on the bottom surface of the optical-grade acrylic plate with an ink that has a very high reflectivity and does not absorb light. The optical-grade acrylic plate is used to absorb the light emitted from the lamp to stay on the surface of the optical-grade acrylic plate. When the light hits each light guide point, the reflected light will spread to all angles, and then destroy the reflection condition and be emitted from the front of the light guide plate. Through light guide points of various densities and sizes, the light guide plate can be made to emi...

AI Technical Summary

Problems solved by technology

According to the structure and principle of the light guide plate in the prior art, it can be seen that the light guide plate in the prior art needs to use high-cost optical-grade acrylic plates, and also needs to use a diffusion plate, so the overall cost is relatively high.

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