LED lamp and polarized light reflector thereof

Abstract

The invention discloses a polarized light reflector of an LED lamp. The polarized light reflector thereof is provided with a reflecting cavity which is in a quadrangular frustum pyramid shape, the reflecting cavity comprises a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially arranged end to end; the small opening end of the reflecting cavity is a light source hole, and the big opening end of the reflecting cavity is a rectangular light outlet; the first side wall and the third side wall are symmetrically arranged with respect to an optical axis, the included angle of the first side wall and the axis of the light source hole and the included angle of the third side wall of the axis of the light source hole are equivalent, and the second side wall and the fourth side wall are arranged oppositely; the axis, faces towards the light source hole, of the second side wall is oblique, the axis, back to the light source hole, of the fourth side wall is oblique, and the included angle of the second side wall and the optical axis is smaller than the included angle of the fourth side wall and the optical axis; the maximum emergence angle of light reflected by the first side wall or the third side wall is the included angle of the first side wall or the third side wall and an optical axis, and the maximum emergence angle of light reflected by the second side wall is smaller than the maximum emergence angle of light reflected by the fourth side wall. The invention further provides the LED lamp.

Description

technical field [0001] The invention relates to a lighting fixture, in particular to an LED lighting fixture and a polarized reflector thereof. Background technique [0002] At present, with the maturity of LED chips and packaging technology, LED brightness requirements are sufficient to meet the needs of various lighting fields, and LED solid-state lighting has become a trend. It is energy-saving, environmentally friendly, safe, with high color rendering index, long life and other performance characteristics; at the same time, it also has notable characteristics such as small size, high luminous efficiency, and low energy consumption. With its obvious advantages, LED light sources are widely used in scientific research experiments, production, and various fields of life, such as roads, tunnels, landscapes, indoor homes, commercial advertisements, industrial manufacturing and other lighting applications. [0003] Unlike incandescent lamps, metal halide lamps and other tradi...

AI Technical Summary

Problems solved by technology

Because roadside lights, green street lights, garden landscape street lights, etc. have light distribution requirements such as large irradiation surface and polarized lighting, the light energy loss of LEDs is very large due to the luminous angle.

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