Abstract: A device for controlling an amount of light of a lighting unit for use in an endoscope, used to view an image of an object. The device includes a plurality of light shields for shielding light generated by a light source and transmitted to the endoscope. A plurality of stepping motors drive the light shield for a series of predetermined time intervals. Brightness of the image is detected during each of the time intervals and pulses are generated during each of the time intervals. The number of pulses generated is determined in accordance with a difference between the brightness of the image detected during each of the time intervals and a desired brightness of the image. The pulses generated are used to control the drive of the plurality of stepping motors in each of the plurality of time intervals.

Abstract: A device for controlling an amount of light of a lighting unit for use in an endoscope, used to view an image of an object. The device includes a light shield system for shielding light generated by a light source and transmitted to the endoscope. A stepping motor drives the light shield for a series of predetermined time intervals. Brightness of the image is detected during each of the time intervals and pulses are generated during each of the time intervals. One of a plurality of brightness ranges is set in accord with desired brightness of image. A determination is made as to whether the detected brightness is within one of the ranges. The pulses generated are used to drive the stepping motor in each of the plurality of time intervals.

Abstract: A device for controlling an amount of light of a lighting unit for use in an endoscope, used to view an image of an object. The device includes a light shield for shielding light generated by a light source and transmitted to the endoscope. A stepping motor drives the light shield for a series of predetermined time intervals. Brightness of the image is detected during each of the time intervals and a predetermined number of pulses are generated during each of the time intervals. An angular position of the light shielding system is determined and the phase of excitation of the motor is varied in response to the angular position. The pulses generated are used to drive the stepping motor in each of the plurality of time intervals.

Abstract: A device for controlling an amount of light of a lighting unit for use in an endoscope, used to view an image of an object. The device includes a light shield for shielding light generated by a light source and transmitted to the endoscope. A stepping motor drives the light shield for a series of predetermined time intervals. Brightness of the image is detected during each of the time intervals and pulses are generated during each of the time intervals motor hunting is detected. The number of pulses generated is determined in response to detection of hunting and when hunting is detected the number of pulses is reduced. The pulses generated are used to drive the stepping motor in each of the plurality of time intervals.

Abstract: A device for controlling an amount of light of a lighting unit for use in an endoscope, used to view an image of an object. The device includes a light shield for shielding light generated by a light source and transmitted to the endoscope. A stepping motor drives the light shield for a series of predetermined time intervals. Brightness of the image is detected during each of the time intervals and pulses are generated during each of the time intervals. The number of pulses generated is determined in accordance with a difference between the brightness of the image detected during each of the time intervals and a desired brightness of the image. The pulses generated are used to drive the stepping motor in each of the plurality of time intervals.

Abstract: A biaxially stretched blow molded bottle of a synthetic resin having a big foot type petaloid bottom is produced in a blow time of not more than 3 seconds, and after the bottle has been released from the mold, the temperature of the bottom portion of the bottom does not rise higher than 70.degree. C., thereby supplementing the capability of the metal mold for cooling the bottom portion. Thus, irregular deformation of the central part of the bottom portion is prevented, molding of the bottom portion with high pressure resisting and mechanical strength is achieved to avoid breakage, and a sufficient height of the central part of the bottom portion is ensured. Additionally, productivity of pressure resisting bottles is improved by reducing the blow time from 4-5 seconds to not more than 3 seconds.

Abstract: In order to improve the productivity of pressure-resisting bottles by reducing the blow time from 4-5 seconds in a conventional bottle molding method to not more than 3 seconds, and mold pressure resisting bottles free from the occurrence of crazing and bottom-breakage, a biaxially stretched blow molded bottle (1) of a synthetic resin having a big foot type petaloid bottom is produced in a blow time of not more than 3 seconds, and after the product has been released from the mold, the bottom portion (3) has become not higher than 70.degree. C., whereby the shortage of the capability of the metal mold of cooling the bottom portion (3) is supplemented. This allows both the prevention of the irregular deformation of the central part (6) of the bottom portion, and the molding of the bottom portion (3) of high pressure resisting strength and mechanical strength with a sufficient height H of the central part (6) of the bottom portion ensured.

Abstract: A radioimmunoassay which comprises the steps of reacting a first antibody (A) on an insoluble solid, which is specific for an antigen (B); an antigen (B); and a second antibody (C) derived from an animal different from that of the first antibody (A), which binds to the antigen (B) under conditions that the concentration of the second antibody (C) is higher than the dissociation constant between the second antibody (C) and the antigen (B) to obtain an immune complex (D); reacting the immune complex (D) with a radiolabeled probe (E) and then measuring the radioactivity of the solid precipitate or the reaction mixture, to measure the quantity of antigen (B). The method provides an assay with high sensitivity which does not depend on the sensitivity of the second antibody to be used.

Abstract: An admixture for ultra-dry-mix concrete is disclosed containing one or more varieties of cement dispersing agents (A) selected from a group consisting of lignosulfonates, oxycarboxylates and polycarboxylates, and in addition, containing one or more varieties of nonionic surface-active agents (B) selected from a group consisting of polyoxyalkylene alkylaryl and alkyl ethers with a hydrophilic-lipophilic balance (HLB-value) of 8 to 17.

Abstract: An apparatus for displaying monitoring data of a continuously varying operation condition of a drive mechanism driven by an actuator, in which data of one operation cycle of the drive mechanism is detected preliminarily as reference data and displayed on a coordinate axis on a monitor to show deviation between the reference data and the detected data of each operation cycle. Allowable uppermost and lowermost limit data of the reference data are also calculated and displayed on the same coordinate axis of the displaying surface of the monitor.

Abstract: A liquid dropping control device holds a bendable tube between a stationary klemmen and a movable klemmen, and adjusts a throttling amount of the tube by the movable klemmen, and comprises a means for detecting dropping of a liquid staying in a dropping tube, to be connected to said tube; a means for moving at high speed the movable klemmen to a direction of opening said tube so as to rapidly start dropping of the liquid staying in the dropping tube; a means for, after detecting start of the liquid dropping, moving the movable klemmen in a direction of throttling the tube and stopping it; and a means for, after detecting subsequent droppings, moving the movable klemmen at low speed so as to control said subsequent droppings at a determined speed.

Abstract: A technique is disclosed for displaying monitoring data of a continuously varying operation condition of a drive mechanism driven by an actuator, in which data of one operation cycle of the drive mechanism is detected preliminarily as reference data and data for another operation cycle succeeding to the one operation cycle is detected. The last-detected data is then superposed on the reference data and displayed on a coordinate axis on a monitor to show deviation between the reference data and the detected data of each operation cycle. Allowable uppermost and lowermost limit data of the reference data are also calculated and displayed on the same coordinate axis of the displaying surface of the monitor.