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:
Aug. 16, 2005
Filed:
Apr. 26, 2002
Shigetoshi Kono, Tokyo, JP;
Shigetoshi Kono, Tokyo, JP;
Hoya Corporation, Tokyo, JP;
Abstract
A method for manufacturing an optical member by vapor depositing an antireflective film on a plastic optical member and vapor depositing a water-repellent thin film over the antireflective film. The vapor deposition of the water-repellent thin film is conducted by evaporating a fluorine-containing organic silicon compound in which the plastic optical member does not exceed the maximum temperature during the vapor deposition of the antireflective film. The heating for evaporation comprises a first stage where the temperature is raised from an ordinary temperature to the prescribed temperature (1) not exceeding the starting temperature of vapor deposition of the compound, and the second stage where the temperature is raised from the prescribed temperature (1) to the prescribed temperature (2) equal to or higher than the starting temperature of the vapor deposition. The rate of raising temperature of the first stage of raising temperature is higher than that of the second stage.