Rectangular light distribution reflector and LED (light-emitting diode) lamp

Abstract

The invention discloses a rectangular light distribution reflector and an LED (light-emitting diode) lamp. The rectangular light distribution reflector comprises a light source port arranged corresponding to a light source and a light-emitting port arranged corresponding to a light-emitting position, wherein the light source port and the light-emitting port are rectangular and are enclosed by two first reflection surfaces and two second reflection surfaces, which are oppositely arranged and symmetrical, the first reflection surfaces and the second reflection surfaces are stretched surfaces and respectively comprise first stretched buses and second stretched buses, the first stretched buses and the second stretched buses are multi-section lines positioned on the same plane and respectively comprise six line sections which are in head-to-tail connection, the included angle between the connection lines from the two ends of each line section to the geometric center of the light source port is 8-12 degrees, and the lengths of the six line sections are sequentially increased from the light source port to the light-emitting port. Compared with the prior art, the sizes of the light distribution reflector and LED lamp disclosed by the invention can be greatly reduced.

Description

technical field [0001] The present invention relates to the technical field of LED (Light Emitting Diode, light-emitting diode) lamps, and more specifically, to a rectangular light distribution reflector and an LED lamp. Background technique [0002] With the rapid development of high-power LED lamps, LED lamps have become a hot topic in recent years due to their low power consumption and durability. The light distribution method of LED lamps has an important impact on the light efficiency of lamps. Taking LED street lamps as an example, the light distribution of LED street lamps in the prior art mostly adopts special LED lens for light distribution. For this method, since the LED lens can be designed to be relatively small, more LED light sources can be arranged in a limited space, and the illuminance of the lamp on the road surface can be improved. [0003] However, the use of lens light distribution will increase the attenuation of LED light, thereby reducing the efficie...

AI Technical Summary

Problems solved by technology

[0003] However, the use of lens light distribution will increase the attenuation of LED light, thereby reducing the efficiency of the lamp

[0004] In the prior art, some LED street lamps also use reflective cups for light distribution. However, due to unreasonable design, the size of the reflective cups is generally large, and the size of a single reflective cup that can meet the light distribution requirements is close to 20mm×40mm×50mm

A reflector of this size will cause the entire LED street lamp to be too large, which will affect the appearance of the lamp and increase the manufacturing cost.

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