LED BULB AND ITS LAMP COVER - YI JIN IND CO LTD

Title:

LED BULB AND ITS LAMP COVER

Document Type and Number:

Japanese Patent JP2010267600

Kind Code:

A

Abstract:

To provide an LED bulb and its lamp cover in which a shortcoming of a multiple light beam irradiation is improved.

The lamp cover has a guide of a light beam as the main technical means, the light beams emitted by a plurality of LED elements in the LED bulb are diffused and mutually blended and superior irradiation effect is yielded. A light guide column is installed inside a translucent case of the lamp cover so as to oppose to respective LED elements, the outer diameter at a position closer to the transparent case of the root part of the light guide column is made larger, the outer diameter is as gradually reduced and comes to show conical shape when extended from the root part and as approaching the LED elements. The light beam emitted from the respective LED elements is uniformly diffused by the corresponding light column, reaches the translucent case, and is discharged outside.

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Inventors:

CHEN CHIN-YI

Application Number:

JP2009161975A

Publication Date:

November 25, 2010

Filing Date:

July 08, 2009

Export Citation:

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Assignee:

YI JIN IND CO LTD

International Classes:

F21S8/10; H01L33/00; F21W101/10; F21Y101/02

Domestic Patent References:

JP2008277592A	2008-11-13
JP2007200730A	2007-08-09
JP2008146948A	2008-06-26
JP2007095684A	2007-04-12
JP2008262876A	2008-10-30
JP2004103503A	2004-04-02
JP2007188832A	2007-07-26
JP2005158362A	2005-06-16
JP2009032590A	2009-02-12

Attorney, Agent or Firm:

Matsuji Takemoto
Hideo Sugiyama
Koichi Yuda
Uozumi Takahiro
Naohiko Teshima
Mitsuo Shiraishi

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