摘要:
An illuminating apparatus comprises a first optical integrator and a second optical integrator which are replaceably arranged. The second optical integrator is structured to provide substantially the same number of secondary light sources as the first optical integrator but with the different size of surface light source formed by these second light sources. Further, the structure is arranged so that it has an aperture number on the emission side, which is equal to the aperture number of the first optical integrator on its emission side. Hence, the illuminance evenness is not degraded even when the .sigma. value is significantly varied.
摘要:
An illuminating optical apparatus adapted to eliminate the occurrence of any exposure light quantity loss and maintain an uniform exposure condition even if the .sigma. value of an illuminating system is varied in response to changing of the pattern of a reticle to be exposed and an exposure apparatus having such illuminating optical apparatus. The illuminating optical apparatus includes an elliptical mirror for condensing an illuminating light from a light source, a collimating optical system for collimating the condensed illuminating light, an optical integrator for forming a plurality of secondary light sources from the coliminated illuminating light, and an afocal zoom optical system arranged in an optical path between the collimating optical system and the optical integrator to vary the secondary light sources in size. An image of an opening of the elliptical mirror is formed at an entrance surface of the optical integrator or in the vicinity thereof.
摘要:
In a chip carrier wherein a semiconductor chip is face down bonded to a package substrate through solder bumps, then covered with a cap and sealed hermetically using a sealing solder, the back of the semiconductor chip being bonded closely to the underside of the cap using a solder for heat transfer, a solder preform serving as the said heat transfer solder is heat-melted and a portion of the thus melted solder is allowed to flow into the sealing portion to effect the hermetic seal of the chip. Furthermore, in order to improve the flowability of the solder preform during the melt flow thereof, a metallized layer for heat transfer formed under the heat transfer solder of the cap and a sealing metallized layer are partially connected with each other through a connecting metallized layer.
摘要:
A molded product for colored food, comprising (A) 0.01 to 1 part by weight of a hindered amine type light stabilizer and (B) 0.01 to 0.5 part by weight of an aromatic phosphite type and/or an aromatic phosphonite type antioxidant formulated per 100 parts by weight of a polyolefin containing substantially no phenol type antioxidant is disclosed.The molded product for colored food made of a polyolefin and having the composition of the present invention undergoes no discoloration even when contacted with a colored food for a long time and is also excellent in odor characteristic, mechanical characteristics and stability, etc., and therefore excellent as molded product for colored food, particularly sealed vessel, vessel for microwave oven heating.
摘要:
A current-sensitized transfer type printer comprising an ink sheet including an ink layer, a conductive layer and a resistance layer which are stacked in this order, a feeding mechanism for feeding the ink sheet in a predetermined direction, a plurality of recording electrodes, each of which is in contact with the resistance layer of the ink sheet, a common electrode which is in contact with the resistance layer of the ink sheet, a power supply for supplying a current between each recording electrode which is selected in accordance with image information and the common electrode, the current flowing through the resistance layer and the conductive layer existing between each recording electrode which is selected and the common electrode, and a heater for heating the common electrode.
摘要:
An external cylindrical grinding unit which comprises a supporting system for supporting a cylindrical body to be ground, a measurement system for measuring the cylindrical body, an arithmetic system for calculating an optimal center axis of the cylindrical body based on the measurement thereof, an alignment system for aligning the optimal center axis of the cylindrical body with the rotation axis about which the cylindrical body is rotated for grinding, and a driving system for driving movable elements of the unit.
摘要:
A method for separating an acid and an alkali from an aqueous solution of a salt by an ion exchange membrane electrolysis wherein anion and cation exchange membranes are used as diaphragms and wherein the acid is formed in an anode compartment, and the alkali is formed in a cathode compartment, characterized in that the cation exchange membrane is a fluorinated cation exchange membrane and the anion exchange membrane is a fluorinated anion exchange membrane with the ion exchange capacity varied from one side to the other side.
摘要:
Novel compound, 1,2-bis(nicotinamido)propane and its pharmaceutically acceptable salts, a process for preparing the same and a pharmaceutical composition containing the same as an active ingredient are disclosed.The compound acts to prevent or spasmolyse cerebral vasospasms, to prevent cerebral apoplexy and to lower the lipoperoxide level in blood.
摘要:
A pharmaceutical composition for prevention and treatment of gastritis and peptic ulcer of mammals including human beings which contains a bis(benzamido)-benzene derivative represented by the formula ##STR1## wherein X and Y are as defined hereinbelow or an acid addition salt thereof as an active ingredient, and a method of the use thereof are disclosed.
摘要:
An illumination optical system which illuminates an illumination objective surface with a light from a light source. The illumination optical system includes a spatial light modulator which includes a plurality of optical elements arranged within a predetermined plane and controlled individually, and which forms a light intensity distribution in an illumination pupil of the illumination optical system; and a polarization unit which is arranged in a position optically conjugate with the predetermined plane, and which polarizes an incident light beam having a first and second partial light beams, coming into the polarization unit such that the first and second partial light beams have polarization states different from each other, and emits the polarized incident light beam as an outgoing light beam, wherein the polarization unit changes, in a cross section of the outgoing light beam, a ratio between a cross sectional areas of the first and second partial light beams.