Patents Assigned to Olympus Optical Company Ltd.
  • Endoscope system
    Patent number: 4604992
    Abstract: An endoscope system includes a CCD camera of the line transfer type located at and within the distal end of an endoscope. The camera produces and supplies a video output to a television monitor, thus enabling medical treatment with laser radiation while the affected area is under observation. Illumination of the affected area and laser radiation used for the medical treatment, are blocked at selected intervals to prevent them from impinging upon the CCD camera at least during a period of operation when the camera is in a charge transfer mode.
    Type: Grant
    Filed: December 24, 1984
    Date of Patent: August 12, 1986
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Ken Sato
  • White balance control system including a fluorescent light ripple detector
    Patent number: 4595946
    Abstract: 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 provided for detecting a particular color temperature from color temperature information which is used in a white balance control. A white balance adjusting circuit responds to an output from either the ripple detecting circuit or the detecting circuits to provide a correction for any offset in the white balance control.
    Type: Grant
    Filed: January 31, 1984
    Date of Patent: June 17, 1986
    Assignee: Olympus Optical Company Ltd.
    Inventors: Masao Uehara, Shunpei Tanaka
  • Emission controller for electronic flash associated with an electronic camera
    Patent number: 4593312
    Abstract: An emission controller for an electronic flash associated with an electronic camera including a solid state pickup element is provided. In response to the closure of a flash photography mode switch which conditions an electronic flash for emission of flashlight, all photodiodes of the solid state pickup element which define the picture elements are uniformly initialized. Subsequently, in response to the closure of an emission initiate switch which initiates the emission of flashlight from an electronic flash, the photodiodes are reset or freed from the initialized condition, and the solid state pickup element begins to be scanned to thereby read out the picture elements at a given time delay after the emission of flashlight from the electronic flash.
    Type: Grant
    Filed: August 31, 1983
    Date of Patent: June 3, 1986
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Masafumi Yamasaki
  • Suction controller of endoscopes
    Patent number: 4561428
    Abstract: 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 disposed on said support tube with said shiftable tube shifted to break the communication between a suction tube and a channel of the endoscope. As a result, the liquid is no longer drawn into the suction tube during the liquid feeding and the shifting of the shiftable tube is guided by the guide tube, so that the reliable functions of the suction controller can be assured.
    Type: Grant
    Filed: July 12, 1984
    Date of Patent: December 31, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Yutaka Konomura
  • Sheet feed apparatus
    Patent number: 4548401
    Abstract: An apparatus for feeding sheets such as sheet like documents to be duplicated by an electrophotographic apparatus, said sheet like documents being successively supplied on a document table of the electrophotographic apparatus one by one manual operation of a user, comprises feeding means such as feeding rollers or a feeding belt mechanism, the feeding means being remained inoperative immediately after the supply of sheet, and means for initiating the feeding operation of said feeding means after a margin of time during which the user can correct the position and posture of the sheet.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: October 22, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Masaji Nishikawa
  • Focus detector
    Patent number: 4543476
    Abstract: A focus detector has a photoelectric position sensor which is disposed in a proper focal plane of light beams passing through a pupil splitter having two light transmitting sections which are controllable to be made transparent alternately in an image forming optical system. Output currents from two electrodes of the photoelectric position sensor are processed to derive a signal representing the center of gravity of an image on the position sensor.The signal is compared with the control signal for making the two light transmitting sections transparent alternately for determining an in focus or an out of focus condition and a front focus or a rear focus based on magnitude and direction of change of the signal, respectively.
    Type: Grant
    Filed: January 24, 1983
    Date of Patent: September 24, 1985
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Yoshiaki Horikawa
  • Chemical analyzing apparatus
    Patent number: 4540549
    Abstract: 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 into successive reaction vessels, a sample delivery unit for delivering a given amount of samples into successive reaction vessels and a plurality of photometering units for measuring an absorbance of a test liquid contained in each reaction vessel. The turntable is first rotated in a backward direction by four steps and then is rotated in a forward direction by five steps, so that the turntable is advanced in the forward direction by one step at the end of the forward movement.
    Type: Grant
    Filed: December 21, 1984
    Date of Patent: September 10, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Sugio Manabe
  • Multiconductive layer electrophotographic photosensitive device and method of manufacture thereof
    Patent number: 4537846
    Abstract: 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 of an aluminum substrate conductive layer, a zinc conductive layer a copper conductive layer, and silver conductive layer which are sequentially laminated to each other. As a result of this structure, the charge injection characteristic of the photosensitive device during primary charging is improved, and the charge injection preventing characteristic during the simultaneous secondary charging and image exposure steps is sufficiently maintained. The conductive layers contact each other intimately. The electrophotographic photosensitive device is highly humidity durable and exhibits a long life and can obtain high electrostatic contrast.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: August 27, 1985
    Assignee: Olympus Optical Company, Ltd.
    Inventors: Yoshiyuki Mimura, Takao Okada, Akitoshi Toda
  • Multiconductive layer electrophotographic photosensitive device and method of manufacture thereof
    Patent number: 4537845
    Abstract: 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 layer, a zinc conductive layer (or a zinc conductive layer and a copper conductive layer), and a nickel conductive layer which are sequentially laminated to each other. As a result of this structure, the charge injection characteristic during the primary charging step is improved, and the charge injection preventing characteristic during the simultaneous secondary charging and image exposure steps is sufficiently maintained. The conductive layers contact each other intimately. The electrophotographic photosensitive device exhibits a high humidity durability and a long life and can obtain high electrostatic contrast.
    Type: Grant
    Filed: October 19, 1983
    Date of Patent: August 27, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventors: Yoshiyuki Mimura, Takao Okada, Akitoshi Toda
  • Optical image projector for projecting an erect positive image of unity magnification and for minimizing degradation in resolution
    Patent number: 4533228
    Abstract: An optical image projector includes an array of optical elements which projects an erect positive image of an object onto an image receiving surface which is not parallel to the plane of the object. The array, the plane of the object and the image receiving surface are disposed in a manner such that the angles formed between the plane of the object and the image receiving surface on one hand and the optical axis of the array on the other are equal to each other and are disposed on the same side of the optical axis.
    Type: Grant
    Filed: May 16, 1983
    Date of Patent: August 6, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Masaji Nishikawa
  • Original conveying apparatus for copying machine
    Patent number: 4530591
    Abstract: An original conveying apparatus is provided for use in a copying machine having a moving original receptacle which permits a copying from either a sheet original or a thick material. A thick material receptacle is integrally formed with a sheet original drive. A sheet original is conveyed by the sheet original drive while the receptacle is maintained at its home position. A thick material is conveyed by a reciprocatory movement of the receptacle from its home position, without previously changing its position. The sheet original drive can be smoothly engaged with or disengaged from a transmission system.
    Type: Grant
    Filed: April 13, 1983
    Date of Patent: July 23, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventors: Takashi Mastuyama, Kazuo Noda
  • Power supply unit for electronic flash
    Patent number: 4530550
    Abstract: A power supply unit for electronic flash includes a plurality of charging units connected to a main capacitor of an electronic flash through diodes which prevent a reverse current flow. Each charging unit includes a d.c. source and a booster converter. An efficient utilization of the source battery is attained by reducing loading upon each source. The use of components of reduced capacity enables a reduction in the size of the overall unit. A single power switch enables a simultaneous initiation of the charging of the main capacitor by all of the charging units. When the main capacitor is charged to a given value, disable means are simultaneously operated in response to an output from charging voltage detecting means, thus simultaneously ceasing the charging operation of the charging units.
    Type: Grant
    Filed: July 1, 1983
    Date of Patent: July 23, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Isao Kondo
  • Battery containment apparatus for electronic flash
    Patent number: 4530034
    Abstract: A battery containment apparatus for electronic flash contains a plurality of batteries, which are grouped into a plurality of battery banks, each including a substantially equal number of batteries. Each bank defines a d.c. source. The apparatus improves the portable use and the ease of operation of an electronic flash while assuring an efficient utilization of the battery capacity when it is used with an electronic flash which requires a plurality of d.c. sources, for example, an electronic flash including a plurality of DC-DC converters which must be energized by a plurality of d.c. sources.
    Type: Grant
    Filed: September 16, 1983
    Date of Patent: July 16, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Osamu Kawarada
  • Connector for endoscope
    Patent number: D280206
    Type: Grant
    Filed: October 8, 1982
    Date of Patent: August 20, 1985
    Assignee: Olympus Optical Company, Ltd.
    Inventor: Fumiaki Ishii
  • Electrophotographic copying machine
    Patent number: D280634
    Type: Grant
    Filed: July 7, 1983
    Date of Patent: September 17, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventors: Michio Imada, Kyo Toyoguchi
  • Electrophotographic copying machine
    Patent number: D280906
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: October 8, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Electrophotographic copying machine
    Patent number: D280907
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: October 8, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventor: Michio Imada
  • Automatic chemical analyzer
    Patent number: D281310
    Type: Grant
    Filed: April 8, 1983
    Date of Patent: November 12, 1985
    Assignee: Olympus Optical Company Ltd.
    Inventors: Yasuo Hattori, Masaharu Kame, Masahiko Sakurada
  • Single-lens reflex camera body
    Patent number: D282932
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: March 11, 1986
    Assignee: Olympus Optical Company Ltd.
    Inventor: Yoshihisa Maitani
  • Single lens reflex camera
    Patent number: RE32177
    Abstract: A single lens reflex camera is provided which has a planar area for mounting a light emitting component such as an electronic flash thereon. The planar area is defined by at least a portion of top surface of a body of the camera which is located on one side of a pentaprism housing disposed centrally on the top surface, and is at a lower level than the remainder of the top surface which is located on the opposite side of the pentaprism housing. The planar area is formed with a threaded bore for mounting the light emitting component, and is also provided with a terminal connector having a plurality of terminals inclusive of a synchro contact terminal, an illumination control signal terminal and a power supply terminal.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: June 10, 1986
    Assignee: Olympus Optical Company Ltd.
    Inventors: Akihiko Hashimoto, Tamotsu Koiwai, Toyohiko Kimura