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:
Apr. 25, 2006
Filed:
Nov. 05, 2004
Jun Fujinawa, Kanagawa, JP;
Junji Nakada, Kanagawa, JP;
Jun Fujinawa, Kanagawa, JP;
Junji Nakada, Kanagawa, JP;
Fuji Photo Film Co., Ltd., Kanagawa, JP;
Abstract
The optical component includes a substrate made of a resin material, a silicon oxide film formed on a surface of the substrate, and a multilayer light reflection preventing film formed on the silicon oxide film, and having at least one layer of a low-refractive-index material and at least one layer of a high-refractive-index material being alternately formed. The silicon oxide film is thick and/or formed by introducing oxygen during film forming by vacuum deposition so that a preset elasticity is imparted to the silicon oxide film. Other optical component includes a substrate made of a resin material and a plurality of films formed by vacuum deposition, and directions of internal stresses in each adjacent pair of the plurality of films are different from each other or a thickness of an impurity existing on a surface of the substrate is 0.2 nm or less. The plurality of films are formed by performing melting of film forming materials other than a film forming material for a film formed on the surface of the substrate after the film is formed on the surface of the substrate.