The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 20, 2015

Filed:

Oct. 15, 2012
Applicants:

Takayuki Kikuchi, Tokyo, JP;

Hiroshi Kitano, Tokyo, JP;

Inventors:

Takayuki Kikuchi, Tokyo, JP;

Hiroshi Kitano, Tokyo, JP;

Assignee:

NIKON CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 5/54 (2006.01); H01J 5/56 (2006.01); H01J 61/52 (2006.01);
U.S. Cl.
CPC ...
H01J 5/56 (2013.01); H01J 5/54 (2013.01); H01J 61/523 (2013.01);
Abstract

A light source device having a large cooling action on the base member of a discharge lamp. A connector on the sides of the power supply and the air blower and the base-side connector of a discharge lamp are connected to each other through a connection cable having a power cable in which an air blow pipe is contained. An electric power is supplied from the power supply to a base part through the power cable of the connection cable, the base-side connector and a flow passage bending member. The cool air from the air blower is supplied to the groove part of the base part through the air blow pipe of the connection cable, the base-side connector and an air blow passage in the flow passage-bending member.


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