Light projector capable of increasing light reflection area

Abstract

The invention provides a light projector capable of increasing the light reflection area. The light projector comprises a light guide cover, wherein the light guide cover is composed of a light-transmitting solid cover body; the surface of the cover body comprises a light incidence surface, a light release surface and at least one reflection surface; the outer surface of the at least one reflection surface is covered with a shielding layer; a plurality of light-emitting elements are distributed on the light incidence surface; the at least one reflection surface comprises a characteristic reflection surface with condensation curvature; a plurality of reflection parts protruding in an arc mode towards the interior of the cover body are formed on the characteristic reflection surface; light provided by the plurality of light-emitting elements is projected into the cover body from the light incidence surface; and light in the cover body is reflected by the characteristic reflection surface and the plurality of reflection parts and is projected outwards through the light release surface. Therefore, the problem that light projected by a traditional light projector is difficult to uniformly distribute is solved.

Description

technical field [0001] The invention relates to the structure of a light projector, in particular to a light projector capable of increasing the light reflection area. Background technique [0002] A light projector is an object that reflects the light emitted by light-emitting elements such as bulbs, lamp tubes, and light-emitting diodes (LEDs), and then emits light to the outside. The illuminance of a specific area. [0003] If the traditional light projector wants to increase the illuminance of the projected light, it generally adopts such as figure 1 and figure 2 Two ways are shown. in figure 1 It is revealed that increasing the number of configurations of light-emitting elements 2 increases the illuminance when the light projector is projected to a specific area; figure 2 It is disclosed that the light-emitting element 2 is arranged at one end of a light guide cover 1 with an arc-shaped reflective surface, and the illuminance projected by the light projector to a...

AI Technical Summary

Problems solved by technology

[0004] However, figure 1 In the method of using a large number of light-emitting elements 2 to increase the illuminance, in addition to increasing the construction cost and occupied space of the light projector, it will also consume a lot of power when used; moreover, figure 2 In the method of increasing the illuminance by means of an arc-shaped reflective surface, although only a small number of light-emitting elements 2 need to be used, due to the arc-shaped structure of the arc-shaped reflective surface, most of the light projected by the light projector is concentrated on the above-mentioned The central position of the specific area causes the light to not be evenly distributed in the above specific area, so it needs to be improved

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