摘要:
An optometric apparatus includes an operating table and a vision test chart displaying device provided internally within the operating table. An optical group, including a plurality of reflection-type optical elements, are disposed within the operating table. The optical group repeatedly reflects an optical image of the vision test chart projected from the vision test chart displaying device along an optical path within said operating table. A first deflecting optical element reflects the optical image of the vision test chart reflected by the reflection-type optical element group outside the operating table in a first direction. A second deflecting optical element then reflects the optical image of the vision test chart reflected by the first deflecting optical element in a second direction toward the examinee's eyes. A line of vision of the examinee in looking at the optical image reflected by the second deflecting optical element obliquely intersects a plane passing through the optical path defined by the optical group.
摘要:
A communication system for examining an eye comprising plural eye examining units which include testing device for testing visual performance of an eye to be examined and operating device for operating the testing device, each of said units is connected through a communication network, and each of said eye examining units comprising sending device for sending the data obtained by the testing device to another eye examining unit, receiving device for receiving the data sent from another eye examining unit, and instruction device for giving instructions to the testing device of another eye examining unit.
摘要:
A method for manufacturing thermoplastic resin expandable granules comprising the steps of: injecting a blowing agent under pressure into a thermoplastic resin which is melted in an extruder; extruding the melted resin containing the blowing agent as an extrudate from a plurality of small holes in a die attached to a distal end of the extruder directly into a coolant liquid, and directly cutting the extrudate by high-speed rotary blades; and cooling and solidifying the extrudate by contacting with the coolant liquid, and thereby obtaining the expandable granules wherein the melted resin containing the blowing agent passing through land parts of the small holes of the die is extruded such that a shearing speed is 12,000 to 35,000 sec−1, and an apparent melt viscosity of the resin is 100 to 700 poise.
摘要:
A crucible is a monolithic structure extending over an entire area of a vaporizing chamber and has at least one slit groove provided in the upper surface thereof. The at least one slit groove has a length from one end of the upper surface of the crucible to other end thereof. The at least one slit groove is used as a portion for containing the evaporation material (dopant material or the like). Alternatively, a crucible is a monolithic structure extending over the entire area of the vaporizing chamber and has a plurality of holes provided in the upper surface thereof. The holes are used as portions for containing the evaporation material. Further, the crucible is divided into a plurality of regions, and individual electric heaters are provided under the lower surface of the crucible for the respective regions, whereby temperature can be individually controlled for the respective regions by the electric heaters.
摘要:
A stacked fuel cell comprises a plurality of cell films and a plurality of separators stacked alternately. The cell films each comprise a solid polymer electrolyte film sandwiched between electrode films made of graphite, while the separators are electrically conductive graphite separators each having a fuel gas channel formed in one surface thereof, and an oxidant gas channel formed in the other surface thereof. In the stacked fuel cell, a plurality of partition plates are interposed with predetermined spacing in the direction of stacking. The partition plates each have an electrically conductive graphite terminal board having a groove formed as a piercing portion, through which a band-shaped fastener made of resin (for example, polypropylene) is passed in a direction perpendicular to the direction of stacking, and an electrically conductive graphite end separator having a gas channel formed in a surface thereof in contact with the cell film.
摘要:
A crucible is a monolithic structure extending over an entire area of a vaporizing chamber and has at least one slit groove provided in the upper surface thereof. The at least one slit groove has a length from one end of the upper surface of the crucible to other end thereof. The at least one slit groove is used as a portion for containing the evaporation material (dopant material or the like). Alternatively, a crucible is a monolithic structure extending over the entire area of the vaporizing chamber and has a plurality of holes provided in the upper surface thereof. The holes are used as portions for containing the evaporation material. Further, the crucible is divided into a plurality of regions, and individual electric heaters are provided under the lower surface of the crucible for the respective regions, whereby temperature can be individually controlled for the respective regions by the electric heaters.
摘要:
An aluminum powder is mixed with a neutron absorber powder through cold isostatic press to form a preliminary molding. The preliminary molding is then subjected to sintering under no pressure in vacuum. After sintering, a billet is subjected to induction heating and hot extrusion to form a square pipe.
摘要:
A rectangular pipe is molded by mixing aluminum powder with powder of a neutron absorbing material, molding a premolded body by means of cold isostatic pressing (CIP), canning the premolded body, sintering the premolded body by means of hot isostatic pressing (HIP), performing outer cutting and end face cutting on the can after the sintering, taking a billet out of the can, and extruding this billet.
摘要:
A disk cartridge case is disclosed which has improved durability and which enables hanging for display or storage purposes. The disk cartridge case includes a case body and a cover for covering a cartridge inserting port provided on the case body. The cover has a cover back member superposed on a case body back member of the case body, a cover front member, a front forming plate, a closing member and a bottom member. The cover back member has a non-adhesion portion located on a side of the closing member and being capable of contacting and separating from the case body back member and an adhesion portion located at an opposite-side of the closing member and being adhered to the case body back member. Furthermore, the cover front member includes an insertion tab having a locking tab. The insertion tab and locking tab are received by a slot formed in the front forming plate. Then, by hooking the locking tab on edge of the slot, the cover front member is secured to the front forming plate.
摘要:
A storage case for disc-shaped recording media contained within respective substantially flat rectangular housings is constituted by a one-piece molded plastic member including a central spine having opposed side edges joined by flexible hinges with respective rectangular covers which are swingable between closed positions, in which the covers extend substantially parallel to each other from the spine with their inner surfaces in confronting relation, and opened positions in which the covers are spread angularly apart, elements on the covers for holding respective disc-shaped recording media in their rectangular housings against the inner surfaces of the respective covers, and a holder on the spine extending from the latter between the covers in the closed positions of the latter for embracing and holding at least one additional disc-shaped recording medium at an edge portion of its respective rectangular housing so as to accommodate such at least one additional disc-shaped recording medium in its respective housing between the disc-shaped recording media in their respective housings held against the inner surfaces of the covers.