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Generator of white-light surface light source

A technology of light-emitting device and white light surface, which is applied to electrical components, electric solid-state devices, circuits, etc., can solve the problems of very high processing technology requirements, difficult to control thickness and uniformity, and difficult to control white light uniformity and color temperature consistency, etc. Achieving the effect of solving excitation wavelength shift, shortening production process, improving chromaticity and consistency

Inactive Publication Date: 2007-11-21
诸建平
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although this can also solve the problem of LED point light sources, since the phosphor is a colloidal mixture with certain fluidity, it is difficult to control the thickness and uniformity when coating on the lens, and the requirements for processing technology are very high. High, and it is difficult to control the uniformity and color temperature consistency of white light generated by LED excitation

Method used

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  • Generator of white-light surface light source
  • Generator of white-light surface light source
  • Generator of white-light surface light source

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with specific embodiment:

[0027] As shown in FIG. 1 , which is a cross-sectional view of Embodiment 1 of the present invention, the lens 1 is a fabricated overall structure. Among them, the lens 1 is composed of several parts, and the parts are combined into an integral structure by one or more methods of ultrasonic welding, adhesive bonding, bayonet, and thread structure, and a cavity 13 is formed inside it. and the opening 12 , the light conversion material 11 is filled in the cavity 13 through the opening 12 . The cross-section of the cavity 13 can be square, circular or other irregular shapes; the inner surface of the cavity 13 can be a smooth and flat surface, or a rough or uneven non-smooth surface or concave-convex surface. Wherein, if the parts of the lens 1 are bonded with an adhesive, the adhesive can be any one of materials such as epoxy resin, silicone resin, acrylic resin, UV glue, ther...

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Abstract

An illumination device using white light as illumination source includes a semi-conducting chip, base and lens with cavum filled in photo-transmission material. The lens are fixed on the chip top and separated with the chip. By using lens it could effectively reduce excitation wavelength excursion, quanta efficiency decrease and aging raised by chip heat radiation. The illuminating rate, color temperature, chroma and coincidence of illumination device are improved.

Description

technical field [0001] The invention relates to a light-emitting device, in particular to a white light surface light source light-emitting device using semiconductors as light-emitting elements. Background technique [0002] Since the end of 1990s, white light LED (light emitting diode, referred to as LED) has developed rapidly. As the fourth-generation lighting source, LED has the advantages of energy saving, environmental protection, long life, high luminous efficiency, no radiation, and impact resistance, which are incomparable to traditional light sources. [0003] Although LED has many unique advantages, due to the small light-emitting area and high brightness of the LED chip, the light source generated by the LED is concentrated and is a point light source, which is very prone to glare and light pollution. If the light conversion material such as phosphor powder is directly covered on the surface of the chip, the phosphor powder is easily affected by the high tempera...

Claims

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Application Information

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IPC IPC(8): H01L33/00H01L33/50H01L33/58
CPCH01L33/58H01L33/507H01L2224/48091H01L2924/00014
Inventor 诸建平
Owner 诸建平
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