摘要:
An anti-reflection coating is formed on an optical surface of an optical member 2 for reducing the amount of light rays reflected from the optical surface. For light rays in a wavelength range from 400 nm to 700 nm, the anti-reflection coating has a reflectance of 0.5% or less if the light rays are incident on the optical surface at angles within a range from 0 to 25 degrees, and it has a reflectance of 3.5% or less if the light rays are incident at angles within a range from 0 to 60 degrees.
摘要:
An optical element (1) of the present invention is provided with an optical substrate (10) and a multilayered optical thin film (11-16) formed on the optical substrate (10). An MgF2 layer (12, 16) of the multilayered optical thin film has a refractive index of 1.10 to 1.35, especially 1.15 to 1.25 with respect to a vacuum ultraviolet light beam having a wavelength of not more than 250 nm. Therefore, when the optical element (1) is used together with an excimer laser light beam having a wavelength of, for example, 248 nm (KrF), 193 nm (ArF), or 157 nm (F2), excellent optical characteristics are exhibited concerning, for example, the reflectance (anti-reflection), the polarization characteristics, and the dependency on the angle of incidence. The MgF2 layer (12, 16) can be produced in accordance with the sol-gel method. The optical element is preferably used for a projection lens of an exposure apparatus which uses the excimer laser light beam as a light source.
摘要:
Disclosed is a mixing faucet assembly (1), which comprises: a mixing valve unit (8) having at least two valve inlet ports (32b), a operating rod (24) and a valve outlet port (28); a faucet body (2) having at least two water-feed passages (2b), and a valve unit-receiving recess (2a) containing the mixing valve unit in such a manner as to receive mixture of hot and cold water discharged from the valve outlet port; a spout portion (6) formed to extend from an upper end of the faucet body in an approximately horizontal direction and have a spout-portion water passage (6a) for receiving the mixture discharged from the valve unit-receiving recess, and a spout port (4); and a load-supporting portion (2d) formed to protrude inwardly toward the inside of the valve unit-receiving recess in such a manner as to come into contact with an upper region of a lateral surface of the mixing valve unit on at least one side corresponding to a location of the spout portion to support the mixing valve unit. The present invention allows the mixing faucet assembly to be reduced in overall height dimension.
摘要:
An anti-reflection coating is formed on an optical surface of an optical member for reducing the amount of light rays reflected from the optical surface. For light rays in a wavelength range from 400 nm to 700 nm, the anti-reflection coating has a reflectance of 0.5% or less if the light rays are incident on the optical surface at angles within a range from 0 to 25 degrees, and it has a reflectance of 3.5% or less if the light rays are incident at angles within a range from above 25 degrees to 60 degrees.
摘要:
An MgF2 optical thin film is formed on an optical surface of a base material. The MgF2 optical thin film includes MgF2 particles and an amorphous silicon oxide-based binder which exists on the surfaces of the MgF2 particles and between the MgF2 particles. Owing to this amorphous silicon oxide-based binder, the optical thin film can have high mechanical strength and high adhesion to the base material, while having excellent environment resistance and a lower refractive index.
摘要:
An MgF2 optical thin film is formed on an optical surface of a base material. The MgF2 optical thin film includes MgF2 particles and an amorphous silicon oxide-based binder which exists on the surfaces of the MgF2 particles and between the MgF2 particles. Owing to this amorphous silicon oxide-based binder, the optical thin film can have high mechanical strength and high adhesion to the base material, while having excellent environment resistance and a lower refractive index.
摘要:
A device for removing foreign material from sand is disclosed. The device includes a rotary box which is driven such that sand is centrifuged therein. The box includes a circular bottom plate, a circumferential and inclined wall extending from the circular end of the bottom place, upwardly and outwardly, and ring portion which extends inwardly from the top of the inclined wall. A plurality of rollers are disposed in the box, each roller having a movable surface substantially parallel to and spaced apart from the circumferential and inclined wall of the box. Sand in the rotary box is centrifuged and circumferentially deposited on the inclined wall to form a sand layer which becomes progressively thicker and then contact the movable surface, subjecting the sand to shearing and compressive forces. Processed sand then overflows from the ring portion of the rotary box.
摘要:
An MgF2 optical thin film is formed on an optical surface of a base material. The MgF2 optical thin film includes MgF2 particles and an amorphous silicon oxide-based binder which exists on the surfaces of the MgF2 particles and between the MgF2 particles. Owing to this amorphous silicon oxide-based binder, the optical thin film can have high mechanical strength and high adhesion to the base material, while having excellent environment resistance and a lower refractive index.
摘要翻译:在基材的光学表面上形成MgF 2 sub>光学薄膜。 MgF 2光学薄膜包括MgF 2 N 2颗粒和存在于MgF 2 N 2颗粒表面上的无定形氧化硅基粘合剂,以及 在MgF 2颗粒之间。 由于这种非晶氧化硅类粘合剂,光学薄膜可以具有高的机械强度和对基材的高粘附性,同时具有优异的耐环境性和较低折射率。
摘要:
Disclosed is a mixing faucet assembly (1), which comprises: a mixing valve unit (8) having at least two valve inlet ports (32b), a operating rod (24) and a valve outlet port (28); a faucet body (2) having at least two water-feed passages (2b), and a valve unit-receiving recess (2a) containing the mixing valve unit in such a manner as to receive mixture of hot and cold water discharged from the valve outlet port; a spout portion (6) formed to extend from an upper end of the faucet body in an approximately horizontal direction and have a spout-portion water passage (6a) for receiving the mixture discharged from the valve unit-receiving recess, and a spout port (4); and a load-supporting portion (2d) formed to protrude inwardly toward the inside of the valve unit-receiving recess in such a manner as to come into contact with an upper region of a lateral surface of the mixing valve unit on at least one side corresponding to a location of the spout portion to support the mixing valve unit. The present invention allows the mixing faucet assembly to be reduced in overall height dimension.
摘要:
A method for forming an optical thin film on a substrate comprises the steps of preparing a sol solution containing minute particles for an optical element dispersed in a dispersion medium, putting the prepared sol solution in a tightly closable vessel to heat and pressurize the sol solution, and then applying the heated and pressurized sol solution onto an optical substrate. The obtained thin film has a refractive index of 1.16 with respect to a light beam having a wavelength of 193 nm, in which the transmission loss is not more than 0.5%. An optical lens including the optical thin film formed on the surface, and an exposure apparatus including the lens provided for a projection optical system or an illumination system are provided.