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Title:
LIGHT EMITTING DEVICE, ITS MANUFACTURING METHOD, LIGHTING MODULE USING THE SAME, AND LIGHTING EQUIPMENT
Document Type and Number:
Japanese Patent JP2005166941
Kind Code:
A
Abstract:

To provide a light emitting device and its manufacturing method with a high light extraction efficiency, thereby providing a lighting module and a lighting equipment with a high optical output by use of the light emitting device.

The light emitting device 1 comprises a light emitting element 2 and a translucent material 3 covering the light emitting element 2, and outputs a light from a surface 4 on which the translucent material 3 comes into contact with the outside. In the light emitting device 1, the surface 4 on which the translucent material 3 comes into contact with the outside has an unevenness containing at least one shape selected from a substantially pyramidal shape or a substantially conical shape. Further, the method for manufacturing the light emitting device contains the steps of forming the unevenness on a surface of a monocrystal substrate, and using the surface of the monocrystal substrate formed with the unevenness as a die to form the translucent material, thereby forming the unevenness on the surface of the translucent material.


Inventors:
NAGAI HIDEO
Application Number:
JP2003403539A
Publication Date:
June 23, 2005
Filing Date:
December 02, 2003
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F21S8/04; F21V5/04; H01L33/22; H01L33/54; H01L33/56; H01L33/60; F21Y101/02; (IPC1-7): H01L33/00; F21S8/04; F21V5/04
Attorney, Agent or Firm:
Ikeuchi, Sato & Partners