Technology method of light guide plate or light guide bar for daytime running light

Abstract

The invention discloses a technology method of a light guide plate or a light guide bar for a daytime running light. The technology method of the light guide plate or the light guide bar for the daytime running light comprises the following steps that (1) two parts of 250 g or 150 g polymethyl methacrylate are taken and melted under the condition with the temperature being 260-300 DEG C, the two parts of polymethyl methacrylate are respectively and independently formed under the condition with the die temperature being 60-80 DEG C, and an upper piece and a lower piece can be manufactured; (2) the upper surface of the lower piece obtained in the (1) step is coated with glue, and then is coated with fluorescent powder; (3) the upper piece is placed on the upper surface of the lower piece coated with the fluorescent powder, the upper piece and the lower piece are subjected to hot pressing to be formed, and the light guide plate or the light guide bar is manufactured. The technology method of the light guide plate or the light guide bar for the daytime running light is simple and easy to implement, the light guide plate or the light guide bar is manufactured to be provided with the upper piece and the lower piece independently, the fluorescent powder is arranged between the upper piece and the lower piece through the glue, and hot pressing forming is conducted. When the light guide plate or the light guide bar manufactured by the technology method is mounted on the daytime running light, the light emitting intensity of the daytime running light can be obviously improved, and the light emitting intensity is more than 650 cd.

Description

Technical field [0001] The invention belongs to the technical field of vehicle lamps, and specifically relates to a process method for a light guide sheet or light guide strip for daytime running lights. Background technique [0002] At present, cars are growing in jet form, which in turn drives the rapid development of the automotive industry, resulting in an increasing demand for car lights. At present, vehicles usually have various headlights, small lights, tail lights, and direction lights at different locations. , Brake lights, etc., so that under different conditions, the lights of different positions are used to emit different colors of light to remind other drivers or passers-by to pay attention to the location or direction of the vehicle, and it can also provide the driver in dim and unclear places Or when driving at night, it has the function of illuminating the road conditions to ensure driving safety. [0003] In order to improve the safety performance of vehicles, day...

AI Technical Summary

Problems solved by technology

[0004] In the existing daytime running lights, the light guide sheet or light guide strip installed inside usually adopts an integrated structure. During the production process of the light guide sheet or light guide strip of this structure, phosphor powder and raw materials are usually mixed together. Carry out one-time molding production. The light guide sheet or light guide strip produced by this production method is installed on the daytime running lights, and its luminous intensity is low. Usually, it can only reach about 500cd