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led street light unit

A technology of LED street lamps and LED light sources, which is applied in the cooling/heating devices of lighting devices, outdoor lighting, lighting and heating equipment, etc., can solve the problems of complex pattern structure and can not completely eliminate the influence of chromatic aberration.

Active Publication Date: 2016-01-06
SHANGHAI SANSI ELECTRONICS ENG +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This mode structure is more complicated and cannot completely eliminate the influence of chromatic aberration

Method used

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Embodiment Construction

[0029] Such as Figure 2 ~ Figure 4 Embodiment 1 of the present invention is shown. Two LED light sources 1 are installed on opposite sides of a heat dissipation base 2. In order to form an angle of 170 degrees between the optical axes L of the two LED light sources 1, the LED light source 1 is installed obliquely during installation. , or, the heat dissipation base 2 is made in an inclined manner on the opposite sides where the LED light source 1 is installed. Two reflective bowls 3 of the same shape and structure are covered above each LED light source 1 , and the reflective bowls 3 are fixedly installed on the heat dissipation base 2 . The inner surface of the reflective bowl 3 is a half ellipsoid cut in a section passing through the long axis a. The LED light source 1 is placed at the focal point F1 of the ellipsoid, and its optical axis L coincides with the long axis a of the ellipsoid. In order to improve the light utilization rate of the lamp and reduce glare, a circl...

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Abstract

The invention discloses an LED streetlight unit comprising two LED light sources and a heat radiation base, wherein the two LED light sources are arranged on the heat radiation base; the two LED light sources are oppositely arranged, and a certain included angle is formed between optical axes of the light sources; two reflective bowls with the same structure respectively cover above each LED light source; the inner surface of the reflective bowl is a half spheroid cut by the cross section through the long axis; the LED light sources are arranged on one focus of the spheroid; and the optical axes of the light sources are arranged on a straight line that the long axis of the spheroid is located. The invention can ensure that the distribution curve of a streetlight comprising the LED streetlight units can reach the batwing type of weak central light intensity; illumination faculae relatively approach the required rectangle shape in actual use; the aberration influence can be completely eliminated; and the streetlight unit has the advantages of simple structure and attractive appearance.

Description

technical field [0001] The invention relates to a street lamp, more specifically, to a street lamp unit using LED as a light source. Background technique [0002] Reflective street lamp products are dazzling, good and bad are mixed, and there are two main ways to sum up: one is to simply use reflective bowls and adjust the angle with the structure to achieve light distribution. But at present, the light pattern of this mode of street lamp generally has the defect that the central light intensity is too strong, such as figure 1 shown. Even if the opening angle reaches 55 degrees, it still cannot achieve the ideal batwing curve, and the lighting effect is not good. Another kind of reflective street light is to use a lens with a reflective bowl to achieve light distribution. This mode structure is more complex and cannot completely eliminate the effect of chromatic aberration. Contents of the invention [0003] In order to solve the above-mentioned defects in the prior ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V7/08F21V17/00F21V19/00F21V29/70F21W131/103F21Y101/02
Inventor 王鹰华陈春根李晟
Owner SHANGHAI SANSI ELECTRONICS ENG