Light distribution lampshade and LED fireproof down lamp

Abstract

The invention discloses a light distribution lampshade and an LED fireproof down lamp. The LED fireproof down lamp comprises a fireproof barrel, a circuit board with LEDs, a rear cover, a fireproof cover, a fireproof cotton lamp cover and a light distribution lampshade. The rear cover is fixedly connected to the tail part of the fireproof cylinder body; the fireproof cover and the fireproof cottonbale cover are fixed in the box body from top to bottom, so the tail part of the fireproof cylinder body is subjected to fireproof protection; the light distribution lampshade allows light to pass, and the shape of the light distribution lampshade is a revolution surface which is formed by revolution of a generatrix around a central shaft and has a large end and a small end; the circuit board isarranged in the fireproof barrel, a center hole is formed in the circuit board, the small end of the rotation face penetrates through the center hole to extend towards the tail of the fireproof barrel, the large end of the rotation face is matched with an opening of the fireproof barrel, the light emitted by the LED is reflected and refracted by the rotation face and then is emitted outwards, so the light spot center light intensity is reduced or round black spots are formed, and the glare is avoided. The lampshade can be widely applied to the field of lamps.

Description

technical field [0001] The invention relates to a light distribution lampshade; the invention also relates to an LED lamp, in particular to an LED fireproof downlight. Background technique [0002] With the development of science and technology, LED solid-state lighting sources are widely used, and more and more of them are used as lighting sources. A downlight is a lighting fixture that is embedded in the ceiling and is widely used for indoor lighting. Downlights do not take up space, can increase the soft atmosphere of the space, reduce the pressure of space, and are widely used in hotels, homes, coffee shops and other places. Ceiling downlights are generally required to have fireproof and waterproof functions. Existing fireproof LED ceiling downlights generally have complex structures, high costs, poor heat dissipation effects, and poor waterproof performance. [0003] Glare refers to the visual condition that causes visual discomfort and reduces the visibility of obje...

AI Technical Summary

Problems solved by technology

[0004] In the technical field of lighting equipment such as the practical application of LED lamps, the main function of the light-transmitting cover is to block the glare of the LED. In the prior art, the light-transmitting cover is generally installed outside the light source, in the center There will definitely be light coming out of the position, which determines that the design of the existing light-transmitting cover can only reduce glare, and cannot fundamentally avoid the generation of glare

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