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| Number | Title | Issue Date |
| 6661589 | Lens barrel A body of a lens frame, which is a lens barrel of the present invention, consists of an inner frame for holding a lens, an intermediate frame in which an adjusting screw is screwed, and an outer frame in which an adjusting screw is screwed. The frames are... | 12/09/2003 |
| 6594087 | Zoom lens The invention relates to a zoom lens system which is compatible with a TTL optical finder having a diagonal field angle of at least 70° at the wide-angle end and about 7 to 10 magnifications and is fast as represented by an F-number of about 2.8 at the w... | 07/15/2003 |
| 6041187 | Power transmission apparatus The invention is directed to an engaging mechanism. The engaging mechanism comprises a cam element which moves upon modification of an engaging position, a cam follower abutted against a cam surface of the cam element, a detecting element for detecting a ... | 03/21/2000 |
| 5825057 | Process for fabricating layered superlattice materials and making electronic devices including same A liquid precursor containing a metal is applied to a substrate, RTP baked, and annealed to form a layered superlattice material. Prebaking the substrate and oxygen in the RTP and anneal is essential, except for high bismuth content precursors. Excess bis... | 10/20/1998 |
| 4967873 | Acoustic lens apparatus In an acoustic lens apparatus of this invention, a lens surface formed on an ultarsonic medium has a longitudinal wave lens portion constituted by a first aspherical surface at its central area, and a transverse wave lens portion constituted by a second a... | 11/06/1990 |
| 4870441 | Photoelectric conversion apparatus for focus detection A photoelectric conversion apparatus for focus detection includes a monitor photoelectric transducer element which produces a voltage corresponding to a charge storage produced by photoelectric transducer elements in accordance with a distribution of ligh... | 09/26/1989 |
| 4862207 | Diaphragm apparatus for camera A diaphragm apparatus is disclosed including a piezoelectric actuator of bimorph type. A drive circuit associated with the actuator applies a voltage corresponding to a diaphragm aperture which is calculated in accordance with a photometric value to the a... | 08/29/1989 |
| 4858219 | Optical information recording reproducing memory system with both power control and optical irradiation inhibiting circuit There is provided an optical information recording and reproducing system which comprises a light source, a light beam power compensation circuit which can compensate a fluctuation of an emitted light beam power from the light source in response to a dete... | 08/15/1989 |
| 4853733 | Program rewritable camera A program rewritable camera includes camera elements for conducting camera operation, a control circuit for controlling said camera elements in response to coded control orders, a first memory for storing said control orders and an input circuit for enabl... | 08/01/1989 |
| 4794911 | Means to facilitate detachably mounting cap to distal end of endoscope An endoscope includes a cap screw body rotatably mounted on a distal end member thereof and having a male threading means for mounting a cap, the cap detachably fitted on the distal end member and having a female threading means for threadably engaging wi... | 01/03/1989 |
| 4795248 | Liquid crystal eyeglass Liquid crystal eyeglasses include a detector for detecting a physical quantity which varies with the temperature of the liquid crystal, the orientation of molecules of the liquid crystal or a change in the refractive index of the liquid crystal. The volta... | 01/03/1989 |
| 4781440 | Stereoscopic optical instruments utilizing liquid crystal A stereoscopic optical instrument employing liquid crystal lenses such as a pair of spectacles and stereoscopic optical devices has a construction in which left and right liquid crystal lenses are incorporated thereinto such that liquid crystal molecular ... | 11/01/1988 |
| 4662717 | Lens and lens holding devices A lens and a lens holding device make it possible to construct a compound lens or to secure a lens to a lens barrel by providing protrusions and/or depressions on a joint surface or surfaces of a lens and/or a lens contact surface of a lens barrel and int... | 05/05/1987 |
| 4634576 | Automatic analyzing apparatus An automatic analyzing apparatus for effecting chemical analyses for various sample liquids such as blood, urine, and the like, comprising a sample delivery pump for metering a sample liquid into a reaction cuvette, a reagent delivery pump for delivering ... | 01/06/1987 |
| 4629862 | Sample heater for use in microscopes A heater for microscopes for heating a sample and maintaining the sample, which is mounted on a platform of the microscope, at a preset temperature during observation of the sample. The heater includes a platform for supporting thereon a sample container ... | 12/16/1986 |
| 4595946 | White balance control system including a fluorescent light ripple detector A white balance control system comprises a ripple detecting circuit for detecting a ripple component associated with a fluorescent lamp source or the like which is contained in light from an object being photographed. Alternatively a circuit may be provid... | 06/17/1986 |
| 4574321 | Automatic backspace device for a tape recorder The disclosed automatic backspace device, in a tape recorder or transcriber or the like, is rewound for a specific period of time. A transistor is turned on by an electrical current from a time constant circuit in response to tape reproduction seen by an ... | 03/04/1986 |
| 4574371 | Apparatus for recording and reproducing information on an optical disc An optical recording and reproducing apparatus includes a first semiconductor laser for emitting a recording laser beam whose intensity is modulated in accordance with an information signal to be recorded and a second semiconductor laser for emitting a re... | 03/04/1986 |
| 4561428 | Suction controller of endoscopes A suction controller of an endoscope is provided with a valve member made of resilient material on a shiftable tube which is guided by a guide tube disposed within a support tube so that when liquid is fed said valve member is pressed against a valve seat... | 12/31/1985 |
| 4558946 | Automatic analyzing apparatus An automatic analyzing apparatus for effecting chemical analyses for various sample liquids such as blood, urine, and the like, comprising a sample delivery pump for metering a sample liquid into a reaction cuvette, a reagent delivery pump for delivering ... | 12/17/1985 |
| 4558691 | Endoscope An endoscope includes an indicating index disposed between an objective optical system and an image transmitter so as to be movable in cooperation with the objective optical system through a cam mechanism and a stationary reference index disposed in a pat... | 12/17/1985 |
| 4540549 | Chemical analyzing apparatus A turntable is arranged rotatably in both directions and a plurality of reaction vessels are arranged along a periphery of the turntable. Along the circumference of turntable are arranged a reagent delivery unit for delivering a given amount of reagent in... | 09/10/1985 |
| 4537845 | Multiconductive layer electrophotographic photosensitive device and method of manufacture thereof In an electrophotographic photosensitive device including a conductive layer, a selenium based photoconductive layer and a transparent insulating layer which are sequentially laminated, the conductive layer is formed by an aluminum substrate conductive la... | 08/27/1985 |
| 4531835 | Method for detecting F-number of lens A method for detecting optically an F-number of an interchangeable imaging lens is disclosed. An image of an exit pupil of the imaging lens is projected onto an array of photoelectrically converting light receiving elements so as to measure a diameter of ... | 07/30/1985 |
| 4520280 | Apparatus for detecting input signal An input signal containing a base line which fluctuates to a great extent is detected or restored by comparing the input signal with reference levels which are shifted in accordance with the fluctuation of base line. The input signal is sampled at a varia... | 05/28/1985 |
| 4517160 | Automatic analyzing apparatus An automatic analyzing apparatus for effecting chemical analyses for various sample liquids such as blood, urine, and the like, comprising a sample delivery pump for metering a sample liquid into a reaction cuvette, a reagent delivery pump for delivering ... | 05/14/1985 |
| 4517611 | Video recording system A system for recording a video signal derived from a solid state image sensing device including a number of picture cells is disclosed. The video signal is read-out of the solid state image sensing device and is recorded on a magnetic tape of a video tape... | 05/14/1985 |
| 4505584 | Method and apparatus for detecting focussing error signal of objective lens In order to derive a focussing error signal of an objective lens with respect to a video disc on which a light beam is focussed by the objective lens, the P-polarized light beam is made incident upon a prism and then upon a thin film which is applied to t... | 03/19/1985 |
| 4497322 | Ultrasonic detection apparatus An electronic scan type ultrasonic diagnosis apparatus for forming a tomographic image of a patient body is disclosed. In order to focus ultrasonic waves emitted from a probe having an array of electroacoustic oscillators, driving pulses are delayed by a ... | 02/05/1985 |
| 4497048 | Technique for controlling tracking in an optical disc apparatus In a method for detecting a tracking error of a light spot with respect to a track recorded spirally or concentrically on an optical video or audio disc on which a light beam emitted from a laser light source is to be focused as a light spot by an objecti... | 01/29/1985 |
| 4492449 | Apparatus and technique for detecting and controlling the focusing of an optical system by image sharpness and lateral shift techniques In a method and apparatus for detecting focus condition of an imaging optical system, the focus condition is detected in accordance with a combination of two different detection methods such as an image sharpness detection and an image lateral shift detec... | 01/08/1985 |
| 4487836 | Method and apparatus for detecting boundary surface between blood plasma and blood corpuscle suspension A method and an apparatus for detecting a boundary surface between a blood plasma and a blood corpuscle suspension obtained after centrifuging are disclosed. An impedance across a pair of electrodes is measured by applying an A.C. voltage across the elect... | 12/11/1984 |
| 4475133 | Video tape recording apparatus with time base correction A video tape recording apparatus using an Hadamard transformation system for recording and reproducing a video signal is disclosed. Facilities are provided for distributing the video signal to a plurality of channels, recording and reproducing the distrib... | 10/02/1984 |
| 4472505 | Method of analyzing chemical substances A method of enhancing the accuracy and reliability of a chemical analysis, wherein a reaction is carried out by combining a sample liquid with at least one reagent to form a test liquid and the test liquid is photometrically scrutinized a plurality of tim... | 09/18/1984 |
| 4472024 | Apparatus for driving objective lens In an apparatus for driving an objective lens which projects a light spot onto an information track recorded spirally or concentrically on a disc-shaped record medium to read out information, a lens holder for holding the objective lens is supported by an... | 09/18/1984 |
| 4472751 | Tape recorder apparatus with portable plug-in module A tape recording device consisting of a main module operative as a portable tape recorder including a first tape drive system and an adapter module having a second tape driving mechanism with which the first tape drive system of the main module may be arr... | 09/18/1984 |
| 4472748 | Method of processing information signal with respect to opto-magnetic record medium In a method of recording an information signal in an opto-magnetic record disc which has an easily magnetizable axis perpendicular to its surface, a constant erasing light beam and a modulated recording light beam are focussed by a single objective lens o... | 09/18/1984 |
| 4470080 | Circuit for detecting frequency modulated signal In order to reproduce an image signal from a frequency modulated wave which is obtained by frequency modulating a carrier with the image signal and picked-up from a magnetic tape by means of a magnetic head, the picked-up frequency modulated wave is suppl... | 09/04/1984 |
| 4468709 | Dual-loop jitter correction circuit for correcting the time base error of an information signal In a jitter correction circuit for correcting a time base error caused in a color television signal readout from a video disc due to a fluctuation in a disc rotating speed and an eccentricity of the disc, a first closed loop control circuit includes a fir... | 08/28/1984 |
| 4460824 | Test requisition card for automatic analyzing apparatus A test requisition card for an automatic analyzing apparatus characterized by a test requisition column, a test report column and an identification (ID) code label column having detachable and non-detachable sections. The test requisition column includes ... | 07/17/1984 |
