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. 04, 2007
Filed:
Dec. 02, 2004
Ryosuke Nakamura, Suwa, JP;
Shinichi Kamisuki, Suwa, JP;
Akihiro Murata, Suwa, JP;
Mitsuhiro Yoda, Suwa, JP;
Ryosuke Nakamura, Suwa, JP;
Shinichi Kamisuki, Suwa, JP;
Akihiro Murata, Suwa, JP;
Mitsuhiro Yoda, Suwa, JP;
Seiko Epson Corporation, , JP;
Abstract
An optical tunable filter is provided including a first substrate having light transmission properties and having a movable part and a supporting member that movably supports the movable part and having a smaller thickness than the movable part, a second substrate having light transmission properties and opposed to the first substrate, a first gap and a second gap provided between the movable part and the second substrate, an interference part causing interference between the movable part and the second substrate through the second gap and a drive member changing an interval of the second gap by moving the movable part to the second substrate by making use of the first gap.