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:
Dec. 15, 2009
Filed:
Jul. 11, 2006
Mitsuaki Amemiya, Saitama, JP;
Mitsuaki Amemiya, Saitama, JP;
Canon Kabushiki Kaisha, , JP;
Abstract
A filter used for an exposure apparatus that exposes a plate using a light from a light source includes a light transmitting film configured to transmit the light from the light source, a first rod member that includes plural first rod members, and thermally contacts the light transmitting film, the plural second rod members being rod members and including a second rod member; and a second member that includes plural second rod members, and thermally contacts the light transmitting film and/or the first member, the plural second rod members being other rod members including a second rod member, wherein a heating value transmittable by the first rod member per unit time in a longitudinal direction of the first rod member is smaller than a heating value transmittable by the second rod member per unit time in a longitudinal direction of the second rod member.