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Light emitting device and method for producing the light emitting device

A light-emitting device and visible light technology, which can be applied to components of lighting devices, damage prevention measures for lighting devices, optical elements for changing the spectral characteristics of emitted light, etc. Value is small and other problems, to achieve good color rendering, improve the effect of heat resistance

Inactive Publication Date: 2010-01-13
USHIO DENKI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the half width value of each LED element is extremely small compared with phosphors, and the color rendering of the obtained white light deteriorates

Method used

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  • Light emitting device and method for producing the light emitting device
  • Light emitting device and method for producing the light emitting device
  • Light emitting device and method for producing the light emitting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] figure 1 It is a perspective view showing the appearance of a light emitting device according to an embodiment of the present invention.

[0039] Such as figure 1 As shown, the light-emitting device 1 includes: a cylindrical box 2 with an opening 2a formed at one end; a lens 3 for closing the opening 2a; a terminal portion 4 formed at the other end of the box 2; 1. The SiC fluorescent substrate 10 arranged inside the box body 2 and equipped with ultraviolet LED elements and visible light LED elements.

[0040] In this embodiment, the case 2 will be described with one end facing upward and the other end facing downward. Various kinds of LED elements are accommodated in the case 2 , and power is supplied to these LED elements from the terminal portion 4 , and the SiC fluorescent substrate 10 is excited by ultraviolet rays emitted by the LED elements to emit light. In addition, blue light, green light, and red light emitted from the LED element pass through the lens 3 w...

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PUM

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Abstract

The invention provides a light emitting device that does not reduce radiant efficiency when in use, enables to increase luminous flux by flowing a high electric current to LED elements, and produces white light of good color. The invention also provides a light emitting device capable of smoothly transmitting heat generated by an LED element to an SiC fluorescent substrate. The light emitting device is provided with first LED elements for emitting UV radiation, second LED elements for emitting visible light, an SiC fluorescent substrate that is mounted with the first LED elements and the second LED elements and is made of SiC doped with at least one of B and Al as well as N and emits visible light when excited by radiation emitted from the first LED elements, and has a case made of inorganic material for containing the SiC fluorescent substrate.

Description

technical field [0001] The present invention relates to a light emitting device including an LED element and emitting white light, and a method for manufacturing the light emitting device. Background technique [0002] Conventionally, there is known a light-emitting device that emits white light by combining an LED element and a phosphor (for example, refer to Patent Document 1). The light-emitting device described in Patent Document 1 includes an LED element capable of emitting light at 300-470 mm, and uses phosphors excited by the light to partially or completely convert the light into light with a longer wavelength to generate white light. In addition, the phosphor is dispersed in the sealing resin used to seal the LED element. [0003] In addition, there is known a light-emitting device capable of generating white light by combining red LED elements, green LED elements, and blue LED elements (for example, refer to Patent Document 2). [0004] Patent Document 1: Japanes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V19/00F21V9/10F21V15/02H01L33/00F21Y101/02
CPCY02B20/181F21V3/049F21Y2105/12F21Y2105/10F21K9/232F21K9/233F21Y2115/10F21Y2113/13H01L2224/48091H01L2224/73265H01L2224/49107H01L2224/92247H01L2224/48137H01L2224/83192H01L2924/00014
Inventor 今井勇次上山智
Owner USHIO DENKI KK
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