Laser direct carving machining process for light guide plate

Abstract

The invention discloses a laser direct carving machining process for a light guide plate. A laser control system is included and comprises a laser output module, a parameter input module, a structurearray control module, a central control processing module and a storage module. The laser output module, the parameter input module, the structure array control module and the central control processing module are in information communication. The laser control system is arranged for achieving positioning of laser beams in the longitudinal direction and the transverse direction and for focusing and arranging the laser beams. The machining process is low in cost, a laser non-contact production process is adopted, troughs are formed in light guiding materials, the direction of transmission lighton the light guiding materials is not damaged, thus, machined products are high in brightness and bright, in addition, the overall brightness error is low, the uniformity is high, a variable light source is an area light source, illuminance is more uniform, softer, more visually comfortable, and the process is worthy of popularizing.

Description

technical field [0001] The invention relates to the technical field of light guide plate processing technology, in particular to a laser direct engraving process of light guide plate. Background technique [0002] The light guide plate is made of optical-grade acrylic / PC sheet, and then high-tech materials with high reflectivity and non-absorbing light are used to engrave the bottom surface of the optical-grade acrylic sheet with laser, V-shaped cross grid engraving, UV screen printing technology prints light guide points. 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 emit light evenly. The purpose o...

AI Technical Summary

Problems solved by technology

It has distinctive features such as ultra-thin, ultra-bright, uniform light guide, energy saving, environmental protection, no dark areas, durable, not easy to yellow, simple and quick installation and maintenance, etc. The current traditional light guide plate processing method has a short product life and is prone to damage. And the uniformity of processed products is poor, so here we propose a laser direct engraving process for light guide plates

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