Patents Assigned to Fuji Photo Optical Co., Ltd.
  • Patent number: 7494462
    Abstract: An endoscopic manual control knob which has a knob body proper in the form of a synthetic resin molding. The knob body is largely composed of a ring-like top plate and a peripheral side wall portion fringed along outer periphery of the top plate. The top plate is provided with an aperture to be fitted on a rotatable shaft, and a number of lever portions projecting radially outward from the outer periphery of the top plate at angularly spaced positions. The knob body has an implant block embedded in each one of the lever portions by insert molding.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: February 24, 2009
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Hidetoshi Seki, Kazuhiko Hino, Haruo Akiba
  • Patent number: 7345706
    Abstract: Auto focus control is exerted based on a focus evaluation value indicating a degree of sharpness of an image obtained from a plurality of image pickup devices placed at positions of different light path lengths. There is provided a device which makes a correction on sensitivity of the focus evaluation value obtained from each image pickup devices. It is thereby possible to make an adequate correction on a sensitivity of the focus evaluation value so as to exert the auto focus control with high accuracy. It is also possible to automatically make a correction on the sensitivity of the focus evaluation value and eliminate troublesome labor. All or a part of signal processing for the auto focus control is performed by a single processing part by time-sharing. Thereby, a circuit scale can be miniaturized and power consumption can be reduced.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: March 18, 2008
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Atsushi Kanayama, Tadashi Sasaki
  • Patent number: 7054550
    Abstract: A rangefinder apparatus includes an effective minimum value certifying unit for comparing a minimum value, exhibiting the smallest value in correlation values calculated for the each rangefinding area, with a reference value for a degree of correlation and certifying a minimum value smaller than the reference value as an effective minimum value, effective for a rangefinding calculation, a distance calculating unit for calculating the distance to the object according to the effective minimum value certified for each rangefinding area; and a correlation calculation restricting unit for omitting the correlation calculation within a specific distance range, farther by at least a predetermined amount than the shortest distance calculated according to the effective minimum value in the correlation calculation for a rangefinding area to be later subjected to the correlation calculation, when the effective minimum value exists in the rangefinding area earlier subjected to the correlation calculation.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: May 30, 2006
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Yoshikazu Mihara, Hideo Yoshida
  • Patent number: 7050714
    Abstract: A camera includes a movable lens barrel, a flip-up flash emitting unit, a biasing spring to retract the flash emitting unit, and a slidable cover for a front of the movable lens barrel. A transmission gear transmits motion from a motor toward the movable lens barrel. A flash shifting transmission ring moves the flash emitting unit between a contained position and a flashing position in response to the motion transmitted by the transmission gear. A connection changer is set in a first set position when the slidable cover is in a closed position, and set in a second set position when the slidable cover is in an open position, for unlinking the transmission ring from the transmission gear when in the first set position, and for linking the transmission ring with the transmission gear when in the second set position.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: May 23, 2006
    Assignee: Fuji Photo Optical.Co., Ltd.
    Inventor: Kenji Yamane
  • Patent number: 7048528
    Abstract: In an exposure apparatus of the invention, for a spatial light modulator, each of a plurality of pixel portions fewer than the total number of the pixel portions is controlled with a control signal generated according to exposure information. Namely, a part of the pixel portions is controlled without controlling a whole of the pixel portions on the substrate. Thus, the number of pixels in the pixel portions is decreased, and transfer time of the control signal becomes short. This enables modulation speed of the laser beam to be increased and the high-speed exposure to be performed. An incorporated laser light source, in which the laser beams are incorporated and struck on the optical fiber, is preferable to the laser device. By adopting the incorporated laser light source, high brightness and high output can be obtained, and it is preferable to the exposure of the spatial light modulator. Since the fiber array is obtained with few optical fibers, it is low cost.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: May 23, 2006
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Hiromi Ishikawa, Kazuhiko Nagano, Yoji Okazaki, Takeshi Fujii, Hiromitsu Yamakawa
  • Patent number: 7035021
    Abstract: A selection device which permits or prohibits serial communication is provided in a lens apparatus capable of performing serial communication to suppress the serial communication although a camera body can perform the serial communication. Thus, a safe operation of the system can be guaranteed. At the same time, the processing speed of the processing circuit in the lens apparatus can be reduced, thereby successfully reducing the power consumption.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: April 25, 2006
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Tadashi Sasaki, Hiroshi Mizumura, Atsushi Kanayama
  • Patent number: 7015488
    Abstract: In an exposure apparatus of the invention, for a spatial light modulator, each of a plurality of pixel portions fewer than the total number of the pixel portions is controlled with a control signal generated according to exposure information. Namely, a part of the pixel portions is controlled without controlling a whole of the pixel portions on the substrate. Thus, the number of pixels in the pixel portions is decreased, and transfer time of the control signal becomes short. This enables modulation speed of the laser beam to be increased and the high-speed exposure to be performed. An incorporated laser light source, in which the laser beams are incorporated and struck on the optical fiber, is preferable to the laser device. By adopting the incorporated laser light source, high brightness and high output can be obtained, and it is preferable to the exposure of the spatial light modulator. Since the fiber array is obtained with few optical fibers, it is low cost.
    Type: Grant
    Filed: April 13, 2005
    Date of Patent: March 21, 2006
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Hiromi Ishikawa, Kazuhiko Nagano, Yoji Okazaki, Takeshi Fujii, Hiromitsu Yamakawa
  • Patent number: 6980253
    Abstract: A support stage for a prompter has a bi-divisional structure comprising a first support stage on which an LCD and a semitransparent mirror are supported and a second support stage on which an ENG camera is supported. Because the first support stage and the second support stage are constructed in the manner as to be capable of overlapping with each other by a slide mechanism, the support stage can be compact in size and can have a better weight balance; hence the support stage is easy to carry.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: December 27, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Nobuo Matsui
  • Patent number: 6942349
    Abstract: An asymmetric aperture diaphragm placing structure for a projection lens is provided for securing an asymmetric aperture diaphragm to a lens holder. The asymmetric aperture diaphragm includes a positioning part formed asymmetrical about the optical axis. The lens holder has a mating part adapted to engage the positioning part only in a state where the asymmetric aperture diaphragm is in a predetermined direction with respect to the optical axis. The asymmetric aperture diaphragm is secured to the lens holder in a state where the positioning part and the mating part engage each other.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: September 13, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Masayuki Inamoto
  • Patent number: 6937286
    Abstract: The vibration proof adapter is arranged between a lens and a camera. Indicators for indicating an ON/OFF status of a vibration proof function are provided on both of the right and left sides of the vibration proof adapter, and the indicators can be checked by a cameraperson with looking at a view finder. Each indicator is retractably provided in a body housing, and a lamp is rotatably provided at the tip of an arm. The arm is made to stand up at the time of image pickup, and is used with turning the screen of the lamp toward the cameraperson. Even if the cameraperson does not move a look from the view finder, the cameraperson can check the lighting status of lamp. Moreover, a cavity for containing the indicator is formed on the periphery of the vibration proof adapter, and the indicator is retracted in the cavity at the time of retraction.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: August 30, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Toshiaki Takeda
  • Patent number: 6937816
    Abstract: It is an object of the present invention to provide a shooting apparatus which is thinner than a conventional shooting apparatus. A lens barrel is brought into an accommodated state from a shooting state by retracting at least one of lens groups constituting the shooting lens from an optical axis, and by bringing at least a portion of one of the other lens groups remaining on the optical axis or an image pickup element into a non-using state in which an opening is left opening at a predetermined opening diameter.
    Type: Grant
    Filed: April 22, 2004
    Date of Patent: August 30, 2005
    Assignees: Fuji Photo Film Co., Ltd., Fuji Photo Optical Co., Ltd.
    Inventors: Hiroshi Endo, Yoshihiro Ito, Takehiko Senba, Akio Omiya, Yasuhiko Tanaka
  • Patent number: 6919928
    Abstract: A position determining device for a control knob includes a relative position determiner and an absolute position determiner. The standard output data of the potentiometer corresponding to the rotational limits of the control knob is recorded in a ROM during manufacturing of the device. Since the device is activated until the potentiometer reaches one of the limits, the operating amount of the control knob is determined in accordance with absolute position data outputted from the potentiometer. When the potentiometer reaches one of the rotational limits of the control knob, the standard data corresponding to the rotational limits is read from the ROM and set as an initial value for the determination by the rotary encoder. Thereafter, the operated amount of the control knob is determined in accordance with relative position data outputted from the rotary encoder.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: July 19, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Atsushi Kanayama
  • Patent number: 6917481
    Abstract: A rod integrator holder comprises a wall constituting at least a part of an intermediate portion interposed between a rod integrator in an illumination optical system or a holding member for the rod integrator, and an optical member disposed downstream the rod integrator or a holding member for the optical member. The intermediate portion tightly closes a space between a light entrance end of the optical member and a light exit end of the rod integrator against surroundings thereof.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: July 12, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Hitoshi Shimizu, Tadashi Iwasawa
  • Publication number: 20050129393
    Abstract: A rangefinder apparatus includes an effective minimum value certifying unit for comparing a minimum value, exhibiting the smallest value in correlation values calculated for the each rangefinding area, with a reference value for a degree of correlation and certifying a minimum value smaller than the reference value as an effective minimum values, effective for a rangefinding calculation, a distance calculating unit for calculating the distance to the object according to the effective minimum value certified for each rangefinding area; and a correlation calculation restricting unit for omitting the correlation calculation within a specific distance range, farther by at least a predetermined amount than the shortest distance calculated according to the effective minimum value in the correlation calculation for a rangefinding area to be later subjected to the correlation calculation, when the effective minimum value exists in the rangefinding area earlier subjected to the correlation calculation.
    Type: Application
    Filed: July 23, 2004
    Publication date: June 16, 2005
    Applicant: Fuji Photo Optical Co., Ltd.
    Inventors: Yoshikazu Mihara, Hideo Yoshida
  • Patent number: 6905461
    Abstract: Disclosed is a bending control mechanism for an endoscope according to the invention, which is characterized in that the bending control mechanism includes a bending portion provided in an insertion portion of the endoscope; a bending wire extended out from the bending portion in order to control the bending portion; a pulley as made operable in link with a bending control lever through the shaft portion of the pulley, the bending control lever being provided in the control portion of the endoscope; a driving wire winding groove as spirally formed on the outer peripheral surface of the pulley as well as in the peripheral direction of the pulley; a driving wire wound around the driving wire winding groove of the pulley; a connection member connecting the driving wire with the bending wire; and a guide member provided in the control portion and including a connection member slidably mounted thereon, wherein in the state where the most driving wire is would round the pulley, a relative position between the pulle
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: June 14, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Kazuhiko Hino
  • Patent number: 6903761
    Abstract: This application provides an electronic endoscope system allowing an accurate delay time corresponding to a length of an electronic scope to be set and allowing a configuration to be simplified. The electronic endoscope system is configured by connecting electronic endoscopes different in length to a processor unit and provided with a reference-delay-time generation circuit for generating a signal having a rough reference delay time and a short-delay-time generation circuit for generating a signal having a delay time shorter than the reference delay time by using a gate delay device or the like. A microcomputer in the processor unit reads delay-time-designation control data D1 and D2 from a ROM in an electronic scope, generates a delay drive clock signal by the two delay-time generation circuits in accordance with the control data D1 and D2, and executes preferable image processing in accordance with the delay signal.
    Type: Grant
    Filed: June 21, 2000
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Kazunori Abe, Mitsuru Higuchi
  • Patent number: 6903879
    Abstract: The present invention provides a lens barrel in which all lens groups are attached to a leading cylindrical body. A movable lens group of the lens groups is moved by a driving source incorporated in the leading cylindrical body. The lens barrel is less likely to be influenced by external forces and can be made smaller. The lens barrel includes first, second, and third cylinders, and first, second, and third lens groups attached to the third cylinder, which is extended first among the first, second, and third cylinders. The first and third lens groups are fixed to the third cylinder, and the second lens group is disposed between the first and third lens groups and movable along the optical axis.
    Type: Grant
    Filed: July 6, 2001
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Mieko Nozawa, Haruo Onozuka, Fumio Iwai, Noboru Shimada, Masaya Nozawa
  • Patent number: 6900948
    Abstract: A single focus lens is disclosed that is formed of only four lens elements. In order from the object side, these are: a first lens element of positive refractive power and having either a concave surface or planar surface on the object side; a second lens element of weak refractive power and meniscus shape that is made of plastic with at least one surface aspheric; a third lens element which has positive refractive power and a convex surface on the image side; and a fourth lens element of weak refractive power and meniscus shape that is made of plastic with at least one surface aspheric and with its concave surface on the image side. Preferably, various conditions are satisfied in order that the single focus lens be compact and favorably correct aberrations so as to provide a high quality image.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: May 31, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Kenichi Sato
  • Patent number: 6897896
    Abstract: A zoom rate demand is provided with characteristic switches for switching its output characteristics. Each of the characteristic switches is assigned to a corresponding output characteristic, and contents of the characteristic to be assigned to the characteristic switches can be changed by an operator by means of a personal computer.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: May 24, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventor: Hiroshi Mizumura
  • Patent number: D505965
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Optical Co., Ltd.
    Inventors: Yuji Nishijima, Koichi Nagata