摘要:
An exposure apparatus for use in fabricating a printed circuit board. A thermally-written liquid-crystal light valve is provided in which a pattern is formed by opaque portions and transparent portions. A writing optical system directs a heating spot light onto the light valve. The light valve and/or the heating spot light is movable, relative to the other. A projecting optical system is arranged which transmits a luminous flux emitted from a light source, through a liquid-crystal layer within the liquid-crystal light valve. The projecting optical system illuminates a subject with the transmitted luminous flux.
摘要:
An apparatus for correcting a scranning beam produced by a polygonal mirror tilting in small surface segments in each mirror surface segment caused by uneven mirror surfaces of the polygonal mirror. Data indicative of the amount of tilting in each of the surface segments is stored in a memory, which is addressed by a data signal indicative of the present scanning position of the polygonal mirror. Output data from the memory is applied to an acousto-optical modulator disposed in the beam path between the light source and the polygonal mirror.
摘要:
A dimensionally stable polyimide film and processes for the preparation thereof. The polyimide film is composed of an aromatic polyimide obtained from a solution of a polymer formed by polymerization of a biphenyl-tetracarboxylic acid and a phenylene diamine, wherein the average linear expansion coefficient of the polyimide film in the temperature range of from 50.degree. C. to 300.degree. C. is 0.1.times.10.sup.-5 to 2.5.times.10.sup.-5 cm/cm..degree.C., the ratio of the linear expansion coefficient in the machine direction of the film to the linear expansion coefficient in the transverse direction of the film is in the range of from 1/5 to 4, and the thermal dimension stability expressed by the ratio of the change of the size of the film at normal temperature after the heat treatment where the temperature is elevated to 400.degree. C. from normal temperature and the film is maintained at 400.degree. C. for 2 hours is less than 0.3%.
摘要:
Provided is a process for producing a roasted coffee bean extract suppressed in bitterness by selectively reducing the content of chlorogenic acid lactones while maintaining the content of chlorogenic acids and having taste and flavor intrinsic to the roasted coffee bean extract.The process for producing a roasted coffee bean extract includes adjusting a raw-material roasted coffee bean extract so as to have a Brix degree of from 10 to 40 and a pH of from 5.5 to 6.5, and treating the extract with heat at 100° C. or more.
摘要:
To provide a transparent conductive substrate for a solar cell, which has a haze factor at the same level of conventional transparent conductive substrates for a solar cell, and a small amount of absorbed light at a wavelength region of about 400 nm by a tin oxide layer.A transparent conductive substrate for a solar cell, comprising a substrate and at least a silicon oxide layer and a tin oxide layer formed thereon in this order, wherein on the silicon oxide layer between the silicon oxide layer and the tin oxide layer, discontinuous ridge parts consisting of tin oxide and a crystalline thin layer consisting of an oxide containing substantially no tin oxide are formed.
摘要:
An evaluation method of residual stress in water jet peening includes a step of creating an analytical model including meshes according to a water jet peening (WJP) object, the shape of a nozzle, and an injection distance, a step of inputting WJP execution conditions, a step of calculating the internal pressure pBi of a cavitation bubble and a bubble number density ngi through jet flow analysis for a jet flow jetting from the nozzle, a step of calculating cavitation energy according to the internal pressure pBi of a cavitation bubble and a bubble number density ngi (S4), a step of calculating the burst energy of cavitation bubbles from the cavitation energy C, and a step of calculating the compressive residual stress of the WJP object from the collapse pressure of cavitation bubbles. Accordingly, the residual stress of the WJP object can be evaluated precisely in a shorter time.
摘要:
A process for packaging an electronic device employs an insulating protective resin layer produced from one or more of the resin compositions: (1) 100 parts of an organic solvent-soluble resin having a polysiloxane skeleton and a polar group, 0.5 to 30 parts of an epoxy compound having an epoxy equivalent of more than 800, and an organic solvent, (2) 100 parts of an organic solvent-soluble resin having a polysiloxane skeleton and a polar group, 0.1 to 10 parts of an epoxy compound having an epoxy equivalent of 100 to 800, 2 to 30 weight parts of a polyvalent isocyanate compound, and an organic solvent; and (3) 100 parts of an organic solvent-soluble resin having a polysiloxane skeleton and a polar group, 0.1 to 20 parts of an epoxy compound having an epoxy equivalent of more than 800, 2 to 30 parts of a polyvalent isocyanate compound, and an organic solvent.
摘要:
The present invention has been made to reproduce data such as video or sound while preventing a video image from being reproduced in a discontinuous manner with respect to a previously reproduced still image in a reproducing apparatus that reproduces a video image and still image that operate in accordance with time information for synchronous reproduction and that have been recorded on a recording medium according to a recording system in which the data size corresponding to one frame is variable. When the reproducing apparatus operates in accordance with time information for synchronous reproduction to reproduce a video image and still image recorded in a recording medium according to a recording system in which the size of data corresponding to one frame is variable, the recording medium is stopped or reversely driven after all the data of the last bank have been picked up or after the reproduction position on the tape has passed over the last bank at the time when the operation mode of the reproducing apparatus is switched from video image reproduction mode to still image reproduction mode.
摘要:
A process is disclosed for the production of a packaged green tea beverage containing non-polymer catechins at a concentration of 0.05 to 0.5 wt. %. According to the process, an aluminosilicate which has an iron release rate of not greater than 0.8 mg/kg to a catechin-containing solution is brought into contact with a green tea mixture of a green tea extract and a concentrate of green tea extract. The present invention can provide beverages, which contain catechins at high concentration and inhibit the formation of dregs during long-term storage.
摘要:
An abrasive sheet having a high flexibility, mechanical strength and heat resistance, comprises (A) a matrix comprising an aromatic polyimide resin and (B) abrasive grains having an average size of 65-150 .mu.m and evenly dispersed in an amount of 2 to 50% by weight in the matrix, and is produced by forming a thin liquid layer from a dispersion comprising an aromatic polyamic acid solution with a rotation viscosity of 3000 to 6000 poises at 30.degree. C. and the above-mentioned abrasion grains dispersed in the solution, and dry-solidifying the liquid layer of the dispersion while imidizing the aromatic polyamic acid to a corresponding aromatic polyimide, the abrasive sheet having a thickness of 1.1 to 3.0 times the average size of the abrasive grains.