Automobile lamp inner lens and manufacturing method thereof

Abstract

The invention discloses an automobile lamp inner lens, which comprises an inner lens main body. A plurality of refraction parts are arranged on the inner lens main body; the refraction part is of a prismatic bulge structure formed by connecting a plurality of inclined planes; at least two inclined planes on the prismatic bulge structure are not completely the same, two adjacent refraction parts share one boundary line, a concave part is formed between the surfaces of the common boundary line on the two adjacent refraction parts, each refraction part comprises a light-transmitting area and a shielding area, and each light-transmitting area or each shielding area is composed of at least one inclined plane. The invention further provides a manufacturing method of the automobile lamp inner lens. The manufacturing method comprises the following steps that a light-transmitting material is selected to be injected into a primary finished product; a shielding layer is arranged on the surface ofthe semi-finished product to form a semi-finished product; a light-transmitting area and a shielding area are determined on the semi-finished product; and in the light-transmitting area of the semi-finished product, the shielding layer in the area is removed by laser, and the light-transmitting material layer is reserved to obtain a finished product. The uniform light emitting effect is achieved,the light emitting effect is three-dimensional, and the strong light and shade contrast effect can be achieved.

Description

technical field [0001] The invention relates to the technical field of vehicle lamp lighting, in particular to a light distribution mirror inside a vehicle lamp and a manufacturing method thereof. Background technique [0002] The light distribution mirror is one of the three major components of the car lamps. It is used to spread the parallel light beam reflected by the reflector in the horizontal direction to expand the irradiation range of the light; There is good and even lighting throughout the pavement. [0003] In the existing light distribution mirror of the car lamp, in order to shape the luminous effect uniformly, it is mainly used to add texture patterns on the inner light distribution mirror to make the position light as uniform as possible; the other is to use light diffusion materials in the inner light distribution mirror The light passes through the light-diffusing material to achieve uniform luminescence; because the design is single in shape and the lumino...

AI Technical Summary

Problems solved by technology

[0003] In the existing light distribution mirror of the car lamp, in order to shape the luminous effect uniformly, it is mainly used to add texture patterns on the inner light distribution mirror to make the positi...

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