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.
Patent No.:
Date of Patent:
Jan. 10, 2017
Filed:
Feb. 26, 2015
Naoyuki Ishikawa, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Akihisa Mikawa, Kanagawa, JP;
Masamichi Yamada, Kanagawa, JP;
Yasunari Mikutsu, Tokyo, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Naoyuki Ishikawa, Kanagawa, JP;
Tetsuya Fujioka, Kanagawa, JP;
Hideo Kanai, Tokyo, JP;
Akihisa Mikawa, Kanagawa, JP;
Masamichi Yamada, Kanagawa, JP;
Yasunari Mikutsu, Tokyo, JP;
Satoshi Tsuchiya, Kanagawa, JP;
Yukimi Nishi, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A light source housing to which a light source lamp having a light emission tube and a reflector is attached includes a pair of flow paths bifurcating onto upper and lower sides of the light emission tube from an air intake port for introducing a cooling air; a flow path open and close unit that slides in a direction of the gravitational force so as to open the flow path on the upper side of the light emission tube and close the flow path on the lower side of the light emission tube; and an air outtake port that outtakes the cooling air introduced into the reflector from the flow path on the upper side of the light emission tube to an outside of the reflector.