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High-coloration white-light LED lamp and preparation method thereof

An LED lamp, high color rendering technology, applied in the field of lighting, can solve the problems of large light decay, complex driving circuit, low quantum efficiency of red phosphors, etc.

Inactive Publication Date: 2015-06-03
OPPLE LIGHTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the field of LED lighting, white light LEDs are usually mixed with red light LEDs, or red phosphors are added to white light to achieve high color rendering. The former has complex drive circuits, poor long-term reliability, large light decay, and large color drift.
The latter red phosphor has low quantum efficiency and is very expensive

Method used

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  • High-coloration white-light LED lamp and preparation method thereof
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Embodiment Construction

[0022] A high color rendering white LED lamp and its preparation method proposed by the present invention will be further described in detail below with reference to the accompanying drawings and specific examples.

[0023] The present invention proposes a preparation method of high-color-rendering white light LED lamps, adopting a technical direction different from conventional methods, and performing spectrum repair at 570-590nm for general color-rendering white light LEDs to obtain high color-rendering High performance LED lamp, its product reliability is high, and cost is low.

[0024] figure 1 It is a schematic flow chart of the method of the embodiment of the present invention; figure 2 It is the luminescence spectrum distribution diagram after spectrum patching in the embodiment of the present invention.

[0025] A high-color-rendering white LED lamp, the outer lamp housing of the LED lamp contains a color-developing substance, and the color-developing substance is c...

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Abstract

The invention provides a high-coloration white-light LED lamp and a preparation method thereof; the preparation method comprises the steps: sufficiently mixing a color-rendering substance with an adhesive, a dispersant and a solvent to form mixture, wherein the color-rendering substance is one or a plurality of of oxides of rare-earth lanthanum, cerium, praseodymium, neodymium, holmium and erbium or phosphate, silicate and carbonate thereof; uniformly coating the mixture on the internal surface or external surface of the external lamp shell of the white-light LED lamp; and drying the external lamp shell of the white-light LED lamp at high temperature.

Description

technical field [0001] The invention relates to the technical field of lighting, in particular to a high-color-rendering white LED lamp and a preparation method thereof. Background technique [0002] LED (Light Emitting Diode, light-emitting diode) has the advantages of energy saving and environmental protection, and is widely used in various fields of life and production. At present, in the field of LED lighting, white light LEDs are usually mixed with red light LEDs, or red phosphors are added to white light to achieve high color rendering. The former has complex drive circuits, poor long-term reliability, large light decay, and large color drift. . The latter red phosphor has low quantum efficiency and is very expensive. [0003] How to provide a high-reliability, low-cost high-color-rendering white LED lamp and its preparation method is one of the problems to be solved urgently in the field of lighting technology. Contents of the invention [0004] The technical sol...

Claims

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Application Information

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IPC IPC(8): F21V3/04F21Y101/02
CPCF21V3/10F21Y2101/00
Inventor 周志贤王洪波
Owner OPPLE LIGHTING