摘要:
An optical component for an optical pick-up for converging a laser beam having a particular wavelength onto a recording layer of an optical disc. The optical component comprises a base material formed of a resin composition, an undercoating which is formed of three layers of thin films having a same main constituent and is formed on a top surface of the base material, and a functional thin film formed on a top surface of the undercoating. In this configuration, each of a first layer and a third layer of the undercoating is a thin film formed without introducing oxygen, and a second layer is a thin film formed while introducing oxygen. A film thickness of the undercoating falls within a range of 160 nm to 270 nm, and film thicknesses of the thin films constituting the undercoating are substantially equal to each other.
摘要:
An ion gun system includes an ion gun for irradiating an ion beam; an electric power supply unit for supplying electric power to the ion gun; two mass flow regulators for introducing each of two types of gas in the ion gun; a control unit connected to the electric power supply unit for working as ion gun control means for controlling electric power supplied to the ion gun from the electric power supply unit; and a control unit connected to the mass flow regulators for working as mass flow control means for controlling the flow rate of gas introduced from the mass flow regulators in the ion gun. The control unit as mass flow control means is provided with a function of changing the set value for the flow rate of each of the two types of gas to another set value by changing it stepwise within a range where the ion gun is working stably. Accordingly, shortening of film formation time can be attained.
摘要:
An optical element having a plastic substrate and an antireflection film provided on the plastic substrate, characterized in that the optical element has a basic layer comprising Nb between the plastic substrate and the antireflection film. The optical element has high adhesiveness between the plastic substrate and the antireflection film and is characterized by excellent resistance to heat, impact, alkali, and abrasion.
摘要:
To provide a thin film forming method and apparatus that can automatically form thin films having constant optical properties with high reproducibility. Antireflection films are deposited on lenses 2a that are held by a coating dome 2 by vaporizing an evaporation material 4 by using an electron gun 3. The power to be applied to the electron gun 3 is controlled so that a transmission or reflection light quantity value that is measured at each time point by an optical film thickness meter 10 becomes equal or approximately equal to a standard light quantity value stored in a standard light quantity value data storing device.
摘要:
While one side of a lens L is held by a suction-holding member 17 and the suction-holding member 17 is moved by the moving mechanism, a coating process, a drying process, and a curing process are sequentially performed in respective receptacles disposed independently of each other. A suction force applied to the lens L by the suction-holding member 17 is controlled by a control section 22 in accordance with each of the receptacles in which the suction-holding member 17 is positioned.
摘要:
While one side of a lens L is held by a suction-holding member 17 and the suction-holding member 17 is moved by the moving mechanism, a coating process, a drying process, and a curing process are sequentially performed in respective receptacles disposed independently of each other. A suction force applied to the lens L by the suction-holding member 17 is controlled by a control section 22 in accordance with each of the receptacles in which the suction-holding member 17 is positioned.
摘要:
A method for producing an optical element having a multi-layered antireflection film formed on a synthetic resin substrate, in which the antireflection film formed has good heat resistance, and its heat resistance lowers little with time. At least one high-refraction layer of the multi-layered anti-reflection film contains niobium oxide, zirconium oxide, yttrium oxide, and optionally aluminum oxide. High-refraction layers can be formed within a shorter period of time while not detracting from the good physical properties intrinsic to the layers.
摘要:
A material for vapor deposition which is obtained by mixing a specific organosilicon compound having an alkyl group substituted with fluorine, a specific silane compound and a specific modified silicone oil, a process for producing an optical member which comprises a step of solidifying the material for vapor deposition described above by heating and a step of vapor depositing the solidified material for vapor deposition on a substrate made of a plastics by heating by a heating means to form a thin film exhibiting a water-repelling property, a process for producing a plastic lens for spectacles which is the above process applied to producing the plastic lens for spectacles, and a plastic lens for spectacles which is produced in accordance with the process. The water-repelling thin film in the optical member and in the plastic lens for spectacles produced in accordance with the above processes exhibits improved slipping property in combination with improved durability and abrasion resistance from those of conventional thin films.
摘要:
To provide a thin film forming method and apparatus that can automatically form thin films having constant optical properties with high reproducibility Antireflection films are deposited on lenses 2a that are held by a coating dome 2 by vaporizing an evaporation material 4 by using an electron gun 3 The power to be applied to the electron gun 3 is controlled so that a transmission or reflection light quantity value that is measured at each time point by an optical film thickness meter 10 becomes equal or approximately equal to a standard light quantity value stored in a standard light quantity value data storing means
摘要:
An ion gun system includes an ion gun for irradiating an ion beam; an electric power supply unit for supplying electric power to the ion gun; two mass flow regulators for introducing each of two types of gas in the ion gun; a control unit connected to the electric power supply unit for working as ion gun control means for controlling electric power supplied to the ion gun from the electric power supply unit; and a control unit connected to the mass flow regulators for working as mass flow control means for controlling the flow rate of gas introduced from the mass flow regulators in the ion gun. The control unit as mass flow control means is provided with a function of changing the set value for the flow rate of each of the two types of gas to another set value by changing it stepwise within a range where the ion gun is working stably. Accordingly, shortening of film formation time can be attained.