Light distribution method of profiled microprism LED (Light-Emitting Diode) fluorescent lamp tube

A technology of LED fluorescent lamps and LED lamp beads, applied in the direction of light source, light source fixed, point light source, etc., can solve the problems of product brightness reduction, visual fatigue, mercury pollution environment, etc., to improve LED light output rate, eliminate light spots and glare Effect

Inactive Publication Date: 2010-09-15
HUNAN HENGRUI LIGHTING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Waste lamp tubes are likely to cause scratches on body parts when they are broken, and the mercury spilled out seriously pollutes the environment
This makes it inevitable for LEDs to replace fluorescent lamps. Most of the LED fluorescent tubes used in the market currently use round transparent plexiglass or PC as the outer cover. Human eyes are prone to visual fatigue; some LED fluorescent tubes are treated with a frosting process on the surface of the product to ease the glare of the light, but this process directly leads to a decrease in the brightness of the product

Method used

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  • Light distribution method of profiled microprism LED (Light-Emitting Diode) fluorescent lamp tube
  • Light distribution method of profiled microprism LED (Light-Emitting Diode) fluorescent lamp tube
  • Light distribution method of profiled microprism LED (Light-Emitting Diode) fluorescent lamp tube

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Experimental program
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Effect test

Embodiment 1

[0032] see Figure 6 The cross-sectional view of the LED fluorescent tube of Embodiment 1, the distance between the lamp beads L=5.65MM, the distance H=1.4L=7.9MM from the upper surface of the LED to the highest point on the inner surface of the PC cover, and the diameter R=0.4MM of the dimple lens.

[0033] Figure 9 A is the effect diagram of refracted light when H=1.4L.

Embodiment 2

[0035] see Figure 7 The cross-sectional view of the LED fluorescent tube of embodiment 2, the distance between the lamp beads L=5.43MM, the distance H=2.5L=13.6MM from the upper surface of the LED to the highest point on the inner surface of the PC cover, and the diameter R=0.4MM of the dimple lens.

[0036] Figure 9 B is the effect diagram of refracted light when H=2.5L.

Embodiment 3

[0038] see Figure 8 The cross-sectional view of the LED fluorescent tube of Embodiment 3, the distance between the lamp beads L=4.84MM, the distance H=3.0L=14.5MM from the upper surface of the LED to the highest point on the inner surface of the PC cover, and the diameter R=0.4MM of the dimple lens.

[0039] Figure 9 C is the effect diagram of refracted light when H=3.0L.

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Abstract

The invention relates to a light distribution method of a profiled microprism LED fluorescent lamp tube. The profiled microprism LED fluorescent lamp tube mainly comprises a PC (Polycarbonate) outer cover, a radiator, LED lamp beads, a power supply, an end cap and the like. The light distribution method comprises the following steps of: (1) arranging the LED lamp beads by a single row under the condition that the luminous intensity meets requirements, and arranging the LED lamp beads by multiple rows under the condition that the luminous intensity can not meet the requirements; and (2) carrying out concave lens structural design processing on the inner surface of the PC outer cover to make the radian of a concave lens not exceed the Brewster angle when light beams are stretched in the radial direction. The invention effectively eliminates the light spots and the glare of common LED lamp tubes by utilizing the profiled microprism design and meanwhile improves the LED luminous emissivity.

Description

technical field [0001] The invention relates to a light distribution method for an illuminating lamp, in particular to a light distribution method for a special-shaped microprism LED fluorescent lamp tube. Background technique [0002] At present, energy consumption in modern society is gradually intensifying, and environmental pollution is becoming more and more serious. Advocating energy-saving and environmentally friendly production and lifestyle has become the consensus of the world, and the awareness of "low carbon" has also begun to enter all fields of society. Saving electricity and improving lighting efficiency are important measures for my country and the world to curb carbon emissions and address climate change. At the "Two Sessions" in 2010, my country's new energy and new technologies represented by "low-carbon economy" and "energy saving and emission reduction" will become a powerful pillar for the transformation of economic structure in the future; Proposals re...

Claims

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Application Information

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IPC IPC(8): F21V19/00F21V5/04F21V15/02F21Y101/02
Inventor 廖仕念黎跃军刘解平
Owner HUNAN HENGRUI LIGHTING CO LTD
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