Tokai Optical Co., Ltd.
|Tokai Optical Co., Ltd. Patent applications|
|Patent application number||Title||Published|
|20130135742||OPTICAL PRODUCT AND SPECTACLE PLASTIC LENS - An optical product includes an optical multilayer film on an optical product base. A color of reflected light of the optical multilayer film satisfies both of the following conditions in a chromaticity diagram (x,y,Y) of a CIE color system:  0.27≦x≦0.30 and  0.30≦y≦0.36. The optical product base is a spectacle plastic lens base.||05-30-2013|
|20130063810||INFRARED-TRANSMITTING COVER - An infrared transparent cover for an infrared signal port of an electronic device includes a base layer having infrared transparency, an infrared transparent and visible light reflective dielectric multilayer film laminated on the base layer to reflect light having a desired color, and a frosted surface formed on the base layer at a location corresponding to the dielectric multilayer film.||03-14-2013|
|20130050636||PLASTIC OPTICAL PRODUCT AND PLASTIC LENS FOR SPECTACLES - In a plastic optical product, an optical multilayer film||02-28-2013|
|20120069295||OPTICAL PRODUCT AND EYEGLASS PLASTIC LENS - An antifouling film is introduced on a base of an optical product such that (1) an absolute value of a charged electrostatic potential is 2.00 kV or less, and (2) a surface peel strength is 0.10 N/19 mm or less. A hard coat film and an optical multilayer film are placed between the base of the optical product and the antifouling film. An antireflection film is provided as the optical multilayer film, and a base of a spectacle plastic lens is provided as the base of the optical product.||03-22-2012|
|20120062833||OPTICAL MEMBER, PLASTIC LENS FOR EYEGLASSES, AND METHOD FOR MANUFACTURING THE SAME - An optical member includes a substoichiometric titanium oxide film formed by depositing substoichiometric titanium oxides in a vacuum chamber into which an oxygen gas for adjusting a vacuum is introduced. In the optical member, the film forming pressure p (Pa) in the vacuum chamber and the optical film thickness (a refractive index of 2.50, a wavelength of 500 nm) of the substoichiometric titanium oxide film have relations of (||03-15-2012|
|20120033175||OPTICAL PRODUCT AND SPECTACLE PLASTIC LENS - An antistatic optical lens is provided in which a carbon nanotube deposition layer||02-09-2012|
|20080284976||SPECTACLE LENS AND SPECTACLE - A spectacle lens is provided with a lens base material and an antireflection film provided on the lens base material (an inner surface and an outer surface seen from a spectacle wearing person). The lens base material is colored with a dye. The antireflection film (antireflection coating layer) is formed by a vapor deposition method such that it slightly reflects incident light in the same color as that presented by the lens base material and transmits all of the remainder. The same color as referred to herein means that the chromaticity coordinate values are equal to each other.||11-20-2008|
Patent applications by Tokai Optical Co., Ltd.