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Patent Searching and Data


Title:
VEHICLE LAMP
Document Type and Number:
Japanese Patent JP2009259431
Kind Code:
A
Abstract:

To provide a compact field emission lamp-type vehicle lamp capable of obtaining a sufficient amount of light and reducing power consumption by making an effective use of light emitted from a phosphor.

The vehicle lamp comprises: a frame body 7; a cold cathode electron source 1 and an ITO film 4 that are provided inside the frame body 7 apart from each other to form a first electric field; a phosphor body 5 that is disposed at a position inside the frame body 7 where a first electric field is formed, and that is excited by electrons emitted from the cold cathode electron source 1 toward the ITO film 4 such that the phosphor substance emits light; an inner reflector 6 that is disposed to the rear surface side of the phosphor body 5; a lossless gate electrode 2 that is so disposed as to sandwich the first electrode, and forms a second electric field so as to control the first electric field; and a subreflector 12 that is disposed to the front surface side of the phosphor body 5 outside the frame body 7.


Inventors:
MATSUOKA KENJI
Application Number:
JP2008104023A
Publication Date:
November 05, 2009
Filing Date:
April 11, 2008
Export Citation:
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Assignee:
ICHIKOH INDUSTRIES LTD
International Classes:
F21S8/10; F21V7/00; F21V7/08; F21V17/00; H01J63/06; F21Y101/00; F21Y105/00
Domestic Patent References:
JPH0380907A1991-04-05
JP2006324152A2006-11-30
JP2005322539A2005-11-17
JP2006179344A2006-07-06
JP2007329118A2007-12-20
JP2002347680A2002-12-04
Attorney, Agent or Firm:
Tomohiro Sakamoto