Coating processes – Optical element produced – Transparent base
Reexamination Certificate
2005-08-16
2005-08-16
Meeks, Timothy (Department: 1762)
Coating processes
Optical element produced
Transparent base
C427S162000, C427S255500, C427S255600, C427S255700, C351S166000, C351S177000, C359S580000, C359S581000
Reexamination Certificate
active
06929822
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.
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European Search Report issued in Aplication No. EP 02 00 9645, Mar. 3, 2004.
Burns Doane Swecker & Mathis L.L.P.
Hoya Corporation
Markham Wesley D.
Meeks Timothy
LandOfFree
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