Title:
光学フィルタ素子、光学フィルタ及びその製造方法
Document Type and Number:
Japanese Patent JP5132136
Kind Code:
B2
Abstract:
There is disclosed an optical filter element that includes a translucent substrate; a laminated film formed by laminating plural thin films including a metal film on the translucent substrate; and a parallel structure in which parallel concave-shaped defective parts are periodically provided at a pitch shorter than a transmitted light wavelength. The parallel structure is formed in at least a part of the laminated film.
Inventors:
Seo Manabu
Application Number:
JP2006314665A
Publication Date:
January 30, 2013
Filing Date:
November 21, 2006
Export Citation:
Assignee:
株式会社リコー
International Classes:
G02B5/20; G02B5/28
Domestic Patent References:
| JP2002372605A | ||||
| JP2004170508A | ||||
| JP2005026567A |
Foreign References:
| WO2006100903A1 |
Attorney, Agent or Firm:
Tadahiko Ito