Light projecting lamp

A lamp and lighting technology, applied in the direction of light source, light source fixation, semiconductor devices of light-emitting elements, etc., can solve the problems of easily destroying the lens, affecting the life of the lens, etc., and achieve the effect of improving the luminous flux

Pending Publication Date: 2018-11-16
GUANGDONG OML TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of small-angle floodlight has the following disadvantages: 1. The elliptical reflector will converge the light at one point, which will affect the life of the lens.
Due to the high energy of the gathered light, it is easy to damage the lens

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0043] A floodlight lamp, comprising LED lamp beads, reflective cups, large Fresnel lenses and small Fresnel lenses, the large Fresnel lens is arranged on the mouth of the reflective cup, and the LED lamp beads are located on the large Fresnel lens On the focal point of the lens, the small Fresnel lens is arranged on the large Fresnel lens, and the small Fresnel lens is located on the light-concentrating point of the reflective cup, wherein the diameter of the large Fresnel lens and the reflective The diameter of the mouth of the cup is 50mm, the height of the reflective cup is 23.7mm, the diameter of the small Fresnel lens is 10mm, the model of the LED lamp bead is CREE XPE2, the beam angle of the lamp is 6 degrees, and the luminous flux is 86%.

Embodiment 2

[0045] A floodlight lamp, comprising LED lamp beads, reflective cups, large Fresnel lenses and small Fresnel lenses, the large Fresnel lens is arranged on the mouth of the reflective cup, and the LED lamp beads are located on the large Fresnel lens On the focal point of the Er lens, the small Fresnel lens is arranged on the large Fresnel lens, and the small Fresnel lens is located on the light-concentrating point of the reflective cup, wherein the diameter of the large Fresnel lens and the reflective The diameter of the mouth of the cup is 75mm, the height of the reflective cup is 35.5, the diameter of the small Fresnel lens is 15mm, the model of the LED lamp bead is CREE XPE2, the beam angle of the lamp is 3 degrees, and the luminous flux is 88%.

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Abstract

The invention discloses a light projecting lamp. The light projecting lamp comprises an LED lamp bead, a light reflecting cup, a large Fresnel lens and a small Fresnel lens, wherein the large Fresnellens is arranged on a cup mouth of the light reflecting cup; the LED lamp bead is positioned on a focus of the large Fresnel lens; the small Fresnel lens is arranged on the large Fresnel lens; and thesmall Fresnel lens is positioned on a hotspot of the light reflecting cup for collimating light on the hotspot of the light reflecting cup. According to the light projecting lamp disclosed by the invention, the light reflecting cup, the large Fresnel lens and the small Fresnel lens are matched with one another, so that light emitted by an LED light source is collimated, and therefore, a light beam angle of a small-angle light transmission lamp is smaller than 10 degrees, and luminous flux is as high as 85%.

Description

technical field [0001] The invention relates to the technical field of lighting fixtures, in particular to a floodlight fixture. Background technique [0002] Floodlights are lamps whose illuminance on the specified illuminated surface is higher than that of the surrounding environment, also known as spotlights. Generally, it is capable of aiming in any direction and has a structure that is not affected by climatic conditions. It is mainly used for large-area operation sites, mines, building outlines, stadiums, overpasses, monuments, parks and flower beds, etc. Therefore, almost all large-area lighting fixtures used outdoors can be regarded as floodlights. The output beam angle of the floodlight is wide or narrow, and the range of change is between 0°-180°. Among them, the beam with a particularly narrow beam is called a searchlight. [0003] Existing floodlights generally include LED lamp beads and lenses. Since the large-angle light emitted by the existing small-angle f...

Claims

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Application Information

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IPC IPC(8): F21K9/20F21V7/04F21V5/04F21V19/00F21Y115/10
CPCF21K9/20F21V5/045F21V7/04F21V19/001F21Y2115/10
Inventor 王勇恒
Owner GUANGDONG OML TECH CO LTD
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