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Lens of LED street lamp

A technology of LED street lamps and LED light sources, applied in the field of LED applications, can solve problems such as being difficult to apply

Inactive Publication Date: 2010-06-16
李镭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ratio of the length of the light spot of this scheme to the height of the light pole is basically 2.5:1, which can be applied to branch roads with a light height of 8-10 meters and a distance between street light poles of about 30 meters, and the height of the main road lights is mostly 12. meters, and the distance between light poles is more than 40 meters, it is difficult to apply the announced lens

Method used

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  • Lens of LED street lamp
  • Lens of LED street lamp
  • Lens of LED street lamp

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Embodiment Construction

[0014] like Figure 1-4 As shown, the LED street lamp lens of the present invention is installed directly in front of the LED light source 6, and the inner surface of the lens close to the LED light source 6 is set as a concave horizontal cylinder 1, and the two sides of the horizontal cylinder 1 are processed into planes. 4. The plane 4 is used for bonding and positioning; the outer surface of the lens away from the LED light source 6 is a longitudinal cylinder 2, and two concave inclined cylinders 3 are arranged in the middle of the longitudinal cylinder 2, and the two Two inclined cylinders 3 are separated on both sides of the longitudinal cylinder 2; the whole is in the shape of a "horse stool", and the two ends of the lens are provided with slots 5 for installation and fixing, and the slots 5 are concave arcs shape, triangle, square or trapezoid.

[0015] Through the horizontal cylinder 1 and the vertical cylinder 2, the light emitted by the LED light source is diverged ...

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Abstract

The invention relates to a lens of an LED street lamp, which is arranged right ahead of an LED light source. The inner side surface of the lens, which is close to the LED light source, is provided with a recessed horizontal transverse surface, and the outer side surface of the lens, which is far away from the LED light source, is provided with a longitudinal cylindrical surface; the middle of the longitudinal cylindrical surface is provided with two recessed inclined cylindrical surfaces which respectively stand at both sides of the longitudinal cylindrical surface; both sides of the transverse cylindrical surface are processed to installation planes; both ends of the lens are provided with recessed arc, triangular, square or trapezoidal clamping grooves used for installation and fixation; light rays emitted from the LED light source are diffused to two mutually perpendicular directions through the transverse cylindrical surface and the longitudinal cylindrical surface, the luminous flux of the middle can be reduced because a middle inclined cylindrical surface exists, the luminous flux of both ends can be increased due to the reflex action of the light rays, and uniform dumbbell-shaped light spots are finally formed. The invention enables the light rays passing through the lens to be more uniformly distributed, enhances the length-width ratio of the light spots and the uniformity degree of light on a radiation surface and can meet the using requirements of the street lamp.

Description

technical field [0001] The invention belongs to the field of LED applications, and in particular relates to an LED street lamp lens. Background technique [0002] As we all know, the light emitted by the LED light source must be integrated with the lens to achieve the desired spot shape and soft brightness. There are two types of lens devices that have been announced. One is to add a convex lens to the front of the LED light source to easily integrate the light. The light spot produced by this lens is circular, which is not suitable for street lamps; the other is to deform the convex lens. Change to a semi-cylindrical shape or half a peanut shell. The ratio of the length of the light spot of this scheme to the height of the light pole is basically 2.5:1, which can be applied to branch roads with a light height of 8-10 meters and a distance between street light poles of about 30 meters, and the height of the main road lights is mostly 12. meters, and the distance between l...

Claims

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Application Information

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IPC IPC(8): F21V5/04F21W131/103F21Y101/02
CPCF21Y2101/02F21W2131/103Y02B20/72F21V5/04F21Y2115/10
Inventor 李镭
Owner 李镭
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