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Patent Searching and Data


Title:
LIGHT EMITTING DEVICE EMPLOYING LED
Document Type and Number:
Japanese Patent JP2007311731
Kind Code:
A
Abstract:

To provide a light emitting device employing an LED capable of achieving a light emitting element with a uniform light distribution and high efficiency.

The light emitting element with a uniform light distribution and high efficiency is achieved by the light emitting device. The element comprises: a recessed reflecting mirror that is a revolution surface shape formed by the rotation of part of a parabola along an optical axis, or a trough surface shape in which part of the parabola is an edge line, and has round or rectangular opening in the front and rear thereof; a light emitting surface shaped LED that is disposed at a position of the rear opening to fill the rear opening; and a diffuse transmission plate disposed at a position of the front opening to fill the front opening.

COPYRIGHT: (C)2008,JPO&INPIT


Inventors:
IWAI IKUO
Application Number:
JP2006164021A
Publication Date:
November 29, 2007
Filing Date:
May 17, 2006
Export Citation:
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Assignee:
IWAI IKUO
International Classes:
H01L33/50; H01L33/60