Mechanical Optical Scanning Patents (Class 348/195)
  • Patent number: 10469734
    Abstract: A camera configured to adjust a focus thereof on the basis of a rotating method and an object processing apparatus using the same are provided. The camera according to one embodiment moves a mirror between a lens and a sensor forward and backward, moves one side end of the sensor without a mirror, or moves the sensor forward and backward using rotation of a cam connected to a rotating motor to adjust a focal length between the lens and the sensor and adjust a focus of the camera onto a moving object.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: November 5, 2019
    Assignee: Gachisoft Inc.
    Inventor: Hoyon Kim
  • Patent number: 10194083
    Abstract: A wobble detection device includes a sensor unit. The sensor unit includes a one-dimensional image sensor and a one-dimensional image sensor arranged side by side in an auxiliary scanning direction so that their corresponding pixels coincide with each other in a main scanning direction, and acquires an image of an object moving in the auxiliary scanning direction as one-dimensional data. The wobble detection device makes a comparison of data corresponding to the same image region by using one-dimensional data acquired by the one-dimensional image sensor and one-dimensional data acquired by the one-dimensional image sensor and thereby detects a movement amount of the image in the main scanning direction between a time when the one-dimensional data used for the comparison was acquired and a time when the one-dimensional data used for the comparison was acquired.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: January 29, 2019
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hironori Nakahara, Nobou Takeshita
  • Patent number: 9998717
    Abstract: A scanning beam display system includes an optical module, an image control module, and a display screen on which optical beams are scanned. The optical module includes a vertical adjuster placed in the optical paths of the beams to control and adjust positions of the optical beams along a generally vertical direction on the display screen, and a control unit configured to receive control instructions for the vertical adjuster and to control the vertical adjuster to be at one of a predetermined number of orientations to place the scanning optical beams at a corresponding distinct position on the display screen. The control unit is further configured to apply an adjustment offset to each orientation of the vertical adjuster such that each immediately vertically adjacent pair of beam footprints projected on the display screen resulting from the plurality of positions have a vertical overlap that is larger than a first threshold.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: June 12, 2018
    Assignee: Prysm, Inc.
    Inventors: Roger A. Hajjar, Victor A. Ruskovoloshin
  • Patent number: 9686487
    Abstract: Variable scan rate image generation is disclosed. A scanning device scans a scene with a detector array at a first constant scan rate. Photon accumulation values are iteratively transferred from each set of detector elements in the detector array to an adjacent set of detector elements at a first transfer rate based on the first constant scan rate. Photon accumulation values of one set of the plurality of sets are iteratively read out at the first transfer rate. The first constant scan rate is accelerated to a second constant scan rate, and photon accumulation values are iteratively transferred from each set to an adjacent set at a second transfer rate based on the second constant scan rate, and photon accumulation values of the at least one set of the plurality of sets are iteratively read out at the second transfer rate.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: June 20, 2017
    Assignee: Lockheed Martin Corporation
    Inventors: Trisha Fish, Mark T. Myers
  • Patent number: 9547225
    Abstract: An image display device which reduces speckles in an image display device using a laser source includes: a laser source which emits excitation light; a collecting lens which collects the excitation light; a deflecting element which scans the excitation light collected by the collecting lens; and a light conversion panel which converts a wavelength of the excitation light scanned by the deflecting element and emits fluorescence, wherein the light conversion panel includes a plurality of phosphor layers which are planarly disposed, absorb the excitation light, and emit the fluorescence.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: January 17, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Hiroshi Ohno, Kazuhiko Yamanaka
  • Patent number: 9270082
    Abstract: Devices, apparatus, systems and methods for providing accurate linear and angular positioning with a payload mounted to a beam having freely moveable ends. The payload can be a laser pointer mounted on a firearm, which maintains the initial precise pointing during and after exposure in high G shock and vibration environments. Vertical and lateral adjustment controls can adjust minute changes in beam orientation. Precision adjustments can be performed in a zero G, one G, or high G environment and maintains the adjustment during and after being exposed to a high G shock or vibration environment.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: February 23, 2016
    Inventor: Orval E. Bowman
  • Patent number: 9210388
    Abstract: In a laser source module aligning laser beams from laser sources for three colors, red, green, and blue on a single combined beam optical axis, decreasing relative displacements of beam spots of three colors, occurring due to thermal deformation by temperature rise, is achieved by a laser source module including plural laser sources, each incorporating a laser having a laser chip installed on a heat sink and a lens converting a light radiated from the laser into a laser beam, and a beam combining unit aligning the laser beams from the laser sources on a single combined beam optical axis, wherein the lasers in at least two or more ones of the laser sources are arranged so that their laser beams will be decentered toward a same direction on the combined beam optical axis upon displacement of an emission point of the laser chip away from the heat sink.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: December 8, 2015
    Assignee: HITACHI-LG DATA STORAGE, INC.
    Inventors: Atsushi Kazama, Takeshi Nakao, Yasuo Amano
  • Patent number: 8947453
    Abstract: Aspects of the present invention are related to systems and methods for correcting artifacts in a camera-captured image of a document or image of an object exhibiting document-like content. A mobile device may capture an image and send the image to a cloud computing system for processing. According to a first aspect of the present invention, the mobile device may provide real-time feedback cues to assist in the capture of an image. The mobile device may detect a region-of-interest in the captured image, and a user may refine or confirm the detected region-of-interest. The captured image, information identifying the region-of-interest and a metadata tag, referred to as a region-of-interest modification tag, indicating whether, or not, the region-of-interest was refined by a user may be sent to the cloud.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: February 3, 2015
    Assignee: Sharp Laboratories of America, Inc.
    Inventors: Lawrence Shao-hsien Chen, Richard John Campbell, Ahmet Mufit Ferman
  • Patent number: 8760510
    Abstract: A three-dimensional imaging apparatus is disclosed. The apparatus includes a generated first planar light screen, and a first and second detector offset from the perpendicular plane of the light screen. The first detector is located on a first side of the perpendicular plane, and the second detector is located on the opposite side of the perpendicular plane. The first and second detectors detect the instantaneous projection of the first planar light screen upon an object within the first planar light screen, and to output first and second data corresponding to the detected projection. A velocity sensor determines the instantaneous velocity of the object as the object moves relative to the first planar light screen, and to output third data corresponding to the determined velocity.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: June 24, 2014
    Inventors: Robert T. Aloe, Patrick Flynn
  • Patent number: 8579443
    Abstract: Briefly, in accordance with one or more embodiments, a scanned beam display, comprises a light source to generate a beam to be scanned and a scanning platform to scan the beam into an exit cone. The scanning platform receives the beam at a selected feed angle, and the scanning platform has a surface structure to redirect the exit cone at an exit angle that is less than the feed angle.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: November 12, 2013
    Assignee: Microvision, Inc.
    Inventors: Joshua M. Hudman, Wyatt O. Davis, Mark O. Freeman, Mark P. Helsel, David Roy Bowman, Kelly D. Linden
  • Patent number: 8567957
    Abstract: A laser-based imaging system (200) is configured to reduce perceived speckle in images (201). The imaging system (200) includes one or more laser sources (207), a light modulator (204) configured to produce the images (201) with light (205) from the laser sources (207), and one or more active polarization switches (206) disposed in an optical path of the imaging system (200). The active polarization switch (206) is configured to alternate a polarization orientation of the light in synchrony with an image refresh cycle of the system. The active polarization switch can be clocked in accordance with a clocking angle to optimize speckle reduction. Additionally, one or more light preconditioners (991,992) may be used to help optimize speckle reduction.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: October 29, 2013
    Assignee: Microvision, Inc.
    Inventors: Markus Duelli, Mark O. Freeman, Christian Dean DeJong, Alban N. Lescure
  • Patent number: 8506087
    Abstract: A laser light projector includes a laser beam generated by a laser light source, a scanner associated with the laser light source and having one or more moving mirrors capable of scanning the laser beam along X-Y coordinates, a scan-fail monitor and a safety-lens. The safety-lens includes at least one optical power, and is positioned and arranged for increasing the safety of the projected light within audience areas by increasing beam divergence in the audience, while keeping beam divergence low above the heads of the audience, thus allowing mirror targeting to occur.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: August 13, 2013
    Inventors: William R. Benner, Jr., Jeremy Philip Turner
  • Patent number: 8459799
    Abstract: An optical scanning projector includes: a raster scanning unit that draws an image in a drawing area on a display surface by scanning beams in a first direction on the display surface while scanning beams in a second direction on the display surface that is orthogonal to the first direction; and a vector scanning unit that draws an image by irradiating beams so as to sequentially form segments each connecting two different points positioned on the display surface.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: June 11, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Shuich Wakabayashi, Akihiro Murata, Yasushi Mizoguchi, Takeshi Shimizu
  • Publication number: 20130038741
    Abstract: A method of capturing and processing a multi-spectral image of an object comprises placing the object on a flat-bed scanner (1), using the flat-bed scanner (1) to illuminate the object successively with monochromatic light at a series of wave-lengths to produce a plurality of images together forming a composite multi-spectral image, determining a spectral profile of at least a portion of the multi-spectral image and comparing the spectral profile to a stored spectral profile (22, 24).
    Type: Application
    Filed: March 8, 2011
    Publication date: February 14, 2013
    Applicant: ISIS INNOVATION LIMITED
    Inventor: Alexander Kovalchuk
  • Patent number: 8269836
    Abstract: Embodiments of the present invention enable image capture, alignment, and registration. Certain applications of the present invention are its use in various embodiments of a system for inspection of a printed circuit board (“PCB”) substrate. In embodiments, an image capture system comprising a camera and a two-dimensional surface supporting an image may be calibrated based on configuration parameters of an image to be captured and of a simulated reference bitmap based on the image. In embodiments, the position of the image to be captured on the two-dimensional surface is determined based on calibration parameters. In embodiments, a sequence of images may be captured of sections of an image that cannot be captured in a single scan. A scan path across the image may be determined that is based in part on calibration parameters.
    Type: Grant
    Filed: July 24, 2008
    Date of Patent: September 18, 2012
    Assignee: Seiko Epson Corporation
    Inventors: Ali Zandifar, Kar-Han Tan, Jing Xiao
  • Patent number: 8265335
    Abstract: In a multi-functional peripheral as an embodiment of the present invention, reading operation of an original is performed and form recognition processing is performed. Here, original image data is compared with form data held in advance and it is determined whether there is some that correspond to each other. In a case of not success in the form recognition, normal processing, that is, OCR processing is performed for entire region of original image data, and OCR result is embedded in the original image data as transparent character data. In a case of success in the form recognition, and further when there is a field in which protected attribute is set in the form data, embedding transparent character data for the protected attribute field is prohibited, and for only other region, embedding transparent character data is performed.
    Type: Grant
    Filed: January 20, 2010
    Date of Patent: September 11, 2012
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Ryoh Hamada
  • Patent number: 8218014
    Abstract: Briefly, in accordance with one or more embodiments, a scanner for a scanned beam display may comprise a scanning platform having a mirror disposed thereon to reflect a beam of light impinging on the mirror, a drive coil disposed on the scanning platform to scan the reflected beam of light in response to a drive current applied to the drive coil. The drive coil has coil winding segments having a narrower width in one or more regions of the drive coil, and has coil winding segments having a greater width in one or more other regions of the drive coil to provide a the drive coil with a reduced electrical resistance.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: July 10, 2012
    Assignee: Microvision, Inc.
    Inventors: Jason B. Tauscher, Dean R. Brown, Matthew Ellis, Wyatt O. Davis, Mark P. Helsel
  • Patent number: 7986340
    Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern of scan lines to be illuminated to produce an image of high resolution in color. The direction of scanning of the scan lines is switched between alternate frames, and the resulting image is the superposition of successive frames integrated for viewing by the human eye.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: July 26, 2011
    Assignee: Microvision, Inc.
    Inventors: Duanfeng He, Dmitriy Yavid, Askold Strat
  • Patent number: 7864211
    Abstract: An apparatus, system or method for increasing quality of digital image capture is provided. Imaging and, more particularly, capturing visuals to provide image manipulation options are provided to increase resolution of the subject images.
    Type: Grant
    Filed: October 16, 2006
    Date of Patent: January 4, 2011
    Inventor: Craig P. Mowry
  • Patent number: 7859567
    Abstract: A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern of scan lines to be illuminated to produce an image of high resolution in color. The direction of scanning of the scan lines is switched between alternate frames, and the resulting image is the superposition of successive frames integrated for viewing by the human eye.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: December 28, 2010
    Assignee: Microvision, Inc.
    Inventors: Duanfeng He, Dmitriy Yavid, Askold Strat
  • Patent number: 7646371
    Abstract: A driver circuit includes an operational amplifier OPC1 which drives a data line by a rail-to-rail operation or a non-rail-to-rail operation based on a grayscale voltage corresponding to one of first to Pth (P is an integer of four or more) grayscale values, and an operational amplifier control section OPCC1 which causes the operational amplifier OPC1 to perform the rail-to-rail operation or the non-rail-to-rail operation based on grayscale data.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: January 12, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Katsuhiko Maki
  • Patent number: 7572015
    Abstract: A displaying optical system is disclosed, which is capable of reducing a speckle noise. The displaying optical system comprises a light source emitting coherent light, a scanning device scanning the light, a first optical system causing the light from the scanning device to form an intermediate image, a second optical system causing the light from the intermediate image to form an image on a real display surface, and an optical element arranged between the first and second optical systems. The optical element widens the divergence angle of the light emerged from the optical element toward the second optical system more than the incident angle of the light on the optical element from the first optical system.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: August 11, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Kobayashi, Keiichiro Ishihara, Ryuichi Sakaguchi
  • Patent number: 7497578
    Abstract: Crosstalk between a drive coil and a primary feedback coil is eliminated by positioning a secondary feedback coil in proximity with the drive coil for contamination by the crosstalk to the same extent as the primary feedback coil, and by processing feedback signals generated by the feedback coils to cancel the crosstalk. The drive coil is used to oscillate a scan mirror employed in an image projection arrangement or an electro-optical reader.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: March 3, 2009
    Assignee: Symbol Technologies, Inc.
    Inventor: Frederick F. Wood
  • Patent number: 7456842
    Abstract: A method and system for determining surface topology of a three-dimensional (3D) structure, based on a structured pattern that is projected onto the surface structure, and images of the pattern superposed on the structured surface are analysed to provide surface coordinates of the structure. The pattern comprises a plurality of unique color edges defined between pairs of differently-colored stripes, which substantially overcomes ambiguity problems. In one embodiment, a calibration method is provided enabling the surface coordinates to be obtained from a single image of the structure.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: November 25, 2008
    Assignees: C.M.D. Controlled Micro Devices Ltd., Cyber Vision (2004) Ltd.
    Inventor: Samuel Kosolapov
  • Patent number: 7443508
    Abstract: A spectrophotometric scanner suitable for producing spectral reflectance images of surfaces of samples for a plurality of wavelength bands is disclosed. The spectrophotometric scanner comprises a scanner head for collecting spectral reflectance data, a positioning mechanism for positioning the scanner head in relation to a surface, and a computing device for controlling the mechanism and recording and analyzing the spectral reflectance data. The computing device directs the positioning mechanism to position the scanner head on a row of locations in a grid of locations of the surface; directs the scanner head to measure spectral reflectance data for each location in the row of locations; records and analyzes the spectral reflectance data; and produces spectral reflectance images from the spectral reflectance data. A light source in the scanner head comprises a plurality of sequentially controllable LEDs, each producing light in a different wavelength band.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: October 28, 2008
    Assignee: VIE Group, LLC
    Inventors: Michael J Vrhel, Victor L Iseli
  • Publication number: 20080055414
    Abstract: For a television scanning element with a scanning area, a method of scanning a television image comprises the steps of: scanning the scanning area at a predetermined fine detail picture scanning rate; imaging a fine detail picture of the television image onto a portion of the scanning area; and imaging more than one coarse detail picture of the television image adjacent to the fine detail picture, each coarse detail picture having a size less than the fine detail picture; wherein the imaging combination produces a fine detail image with the fine detail scan rate and a coarse detail image with a coarse detail scan rate, the coarse detail scan rate being a multiple of the fine detail scan rate equal to the number of imaged coarse detail pictures.
    Type: Application
    Filed: September 4, 2007
    Publication date: March 6, 2008
    Inventor: Stephen George Mican
  • Patent number: 7018055
    Abstract: The present invention provides an image projecting device for projecting projecting light corresponding to image information by projecting means. The image projecting device includes at least scanning monitoring means for monitoring entrance of an entering object into a projecting area on which the projecting light is projected. The scanning monitoring means monitors at least a part of outer edges of the projecting area on which the projecting light from the projecting means is projected.
    Type: Grant
    Filed: June 29, 2004
    Date of Patent: March 28, 2006
    Assignee: Sony Corporation
    Inventor: Toru Suzuki
  • Publication number: 20030007073
    Abstract: A scanning laser microscope is configured to include: a scanner unit for performing two-dimensional scanning on a specimen using a light beam; a photodetector unit for detecting a light from the specimen; an A/D converter for converting an output signal from the photodetector unit into a digital signal; a CPU for controlling the scanner unit and generating image data of the specimen from the digital signal output from the A/D converter; a display unit for displaying the image data; an external device for outputting an external signal; and a data storage unit, connected to the external device, for recording the time when the external signal is output. With the configuration, the data stored in the data storage unit can be read by the CPU.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 9, 2003
    Applicant: OLYMPUS OPTICAL CO., LTD.
    Inventor: Nobuhiro Takamizawa
  • Publication number: 20020180868
    Abstract: A display apparatus includes a scanning assembly that scans about two or more axes, typically in a raster pattern. A plurality of light sources emit light from spaced apart locations toward the scanning assembly such that the scanning assembly simultaneously scans more than one of the beams. The scanning assembly includes a plurality of mirrors that sweep their respective beams through respective regions of an image field. The regions are immediately adjacent so that an overall image is produced by “tiling” of the regions. Because sweeps of the scanning assembly scan a plurality of tiles simultaneously the resolution and/or field of view of a display for a given scan angle and mirror size is increased relative to a single mirror sweeping a single beam. In alternative embodiments, tiling is used for imaging. Also, various approaches to controlling the frequency responses of the various scanners are described, including active control of MEMs scanners and passive frequency tuning.
    Type: Application
    Filed: June 29, 2002
    Publication date: December 5, 2002
    Applicant: Microvision, Inc.
    Inventors: Thomas M. Lippert, Clarence T. Tegreene
  • Publication number: 20020030743
    Abstract: The invention provides an image outputting apparatus for outputting an image through execution of jobs, a control method for the image outputting apparatus, an image outputting system, and a storage medium product. When a job generated upon an output request is not executable, job information of at least one of other image outputting apparatuses is acquired and the job is transferred to at least one of the other image outputting apparatuses in accordance with the acquired job information.
    Type: Application
    Filed: September 12, 2001
    Publication date: March 14, 2002
    Inventor: Masanobu Inui
  • Patent number: 6271879
    Abstract: An apparatus and method for controlling and detecting the alignment of a color frame phase from a composite analog video signal decodes the composite analog video signal to produce a component digital video signal and to generate a color frame signal that represents the start of each color frame for the composite analog video signal. Based upon the color frame signal a flag signal is inserted into the component digital video signal. The component digital video signal is captured by an analyzer based upon the flag signal so that the captured component digital video signal is in color frame phase with a stored reference component digital video signal. Preferably the stored reference component digital video signal represents a test sequence having an integer number of color frames plus or minus one video frame.
    Type: Grant
    Filed: April 3, 1998
    Date of Patent: August 7, 2001
    Assignee: Tektronix, Inc.
    Inventor: Michael S. Overton
  • Patent number: 6233014
    Abstract: A camera shoots an image of a two-dimensional object by a line sensor for main scanning and a rotation scanning mechanism for secondary scanning. The image pickup angle range in the secondary scanning direction is altered according to modification of the focal length of the objective lens by a zooming mechanism. The angular velocity of secondary scanning is altered according to the angular position of subscanning and the focal length so that the image pickup range on the object plane of one line is substantially equal over the entire area of the image pickup angle range. Thus, a line sensor camera is provided that can photograph an image with no distortion in the secondary scanning direction.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: May 15, 2001
    Assignee: Minolta Co., Ltd.
    Inventors: Keizou Ochi, Hideaki Nakanishi, Takashi Kondo
  • Patent number: 6091461
    Abstract: A projection display device wherein a modulated laser beam is scanned across a viewing surface by a system of rotating mirrors. A correcting mirror is provided for introducing small variations in the path of the beam. An instantaneous position of the beam on the viewing surface is monitored and a deviation between the actual pattern traversed by the beam and a predetermined scanning pattern is detected. The angular position of the correcting mirror is adjusted to reduce the deviation between the actual scanning pattern and the predetermined scanning pattern.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: July 18, 2000
    Assignees: Sony Corporation, Sony Corporation of America
    Inventor: George S. Bardmesser
  • Patent number: 5502490
    Abstract: A display unit includes a light-emitting element array having a plurality of linearly arranged light-emitting elements drivable by a time sequential image information signal to emit beams of light in accordance with pieces of information allotted to the corresponding picture elements, a deflector such as a polygon mirror for deflecting the light beams simultaneously in a direction perpendicular to the longitudinal direction of the light-emitting element array, and a light-to-light conversion element including a photoconductive layer and a photo-modulation layer, the light beams being imaged on the photoconductive layer.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 26, 1996
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Itsuo Takanashi, Shintaro Nakagaki, Ichiro Negishi, Tetsuji Suzuki, Fujiko Tatsumi, Ryusaku Takahashi, Keiichi Maeno
  • Patent number: 5497960
    Abstract: The present invention relates to a device for a motorized aircraft, said device having a room for containing an inspection apparatus, said device comprising at least two elements, a first element absorbing essentially vibrations with a frequency higher than a specific frequency, while the second element absorbs essentially vibrations with a frequency lower then said specific frequency, said first and second elements being linked together and placed the one with respect to the other, so that the .second element is adjacent to the said room. The invention relates also to an aircraft, such as a helicopter, with a camera placed in such a device.
    Type: Grant
    Filed: September 14, 1993
    Date of Patent: March 12, 1996
    Inventor: Emmanuel E. Previnaire
  • Patent number: 5463468
    Abstract: A display unit includes a light-emitting element array having a plurality of linearly arranged light-emitting elements drivable by a time sequential image information signal to emit beams of light in accordance with pieces of information allotted to the corresponding picture elements, a deflector such as a polygon mirror for deflecting the light beams simultaneously in a direction perpendicular to the longitudinal direction of the light-emitting element array, and a light-to-light conversion element including a photoconductive layer and a photo-modulation layer, the light beams being imaged on the photoconductive layer.
    Type: Grant
    Filed: March 16, 1994
    Date of Patent: October 31, 1995
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Itsuo Takanashi, Shintaro Nakagaki, Ichiro Negishi, Tetsuji Suzuki, Fujiko Tatsumi, Ryusaku Takahashi, Keiichi Maeno
  • Patent number: 5444479
    Abstract: A support frame is coupled to a counterweight frame to form a mechanical oscillator in which oscillations of adjustable amplitudes are induced to produce parallax, oscillatory scanning motion of a camera rotatable mounted by the support frame. A spring assembly, acting on the support and counterweight frames, establishes an effective spring constant to tune the resonator to a particular resonate frequency. Rotatable motion of the camera relative to the support frame consistently directs the optical axis of the camera to a signal convergence point in the scene being photographed. Separate motors are selectively energized by a control system to regulate the amplitudes of resonator oscillation to a desired disparity setting, to tune the resonator to a desired resonant frequency setting, and to direct the camera to a desired convergence point setting.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: August 22, 1995
    Assignee: Vision III Imaging, Inc.
    Inventors: Leo M. Fernekes, Stefan J. Rublowsky
  • Patent number: 5436655
    Abstract: Arranged within a measuring-light generating unit of an endoscope apparatus for three dimensional measurement, according to the invention, are measuring means, a lamp for outgoing a normal illuminating light, and a laser for outgoing a measuring light. Connected to the measuring means is a signal line which is connected to a CCD. Further, an illuminating light outgone from the lamp is condensed by a condenser lens, and is incident upon an incident end surface of a light guide. Furthermore, the measuring light outgone from the laser is condensed by the condensing lens, and is incident upon the incident end surface of the image guide. Moreover, the incident end of the image guide is connected to scanning means formed by a piezo-electric element, a speaker (voice coil) or the like through a connecting element. The scanning means is operated whereby the incident end of the image guide is reciprocally moved in a direction perpendicular to an optical axis of the measuring light.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: July 25, 1995
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Keiichi Hiyama, Masahide Kanno, Shinichiro Hattori
  • Patent number: 5410353
    Abstract: A device for reading identification marks on an electrical cable (1), including at least one group of signs written longitudinally one after the other on the external surface of a longitudinal portion of the sheath (4) of the cable, includes a lighting assembly (30) and a camera (25) which are capable of forming the image of a longitudinal line of the external surface of the longitudinal sheath portion in order to form, longitudinal line by longitudinal line, the complete peripheral image of the external surface of the longitudinal sheath portion.
    Type: Grant
    Filed: January 21, 1993
    Date of Patent: April 25, 1995
    Assignee: Societe Anonyme dite : Eurocopter France
    Inventor: Leon G. Cerda
  • Patent number: 5391867
    Abstract: A wide format scanner moves a substrate to be scanned along a first axis and at a first predetermined speed, and moves a scanning head across the substrate obliquely with respect to the first axis at an angle and at a speed coordinated with the first predetermined speed so as to provide a scan trace perpendicular to the first axis.
    Type: Grant
    Filed: February 24, 1993
    Date of Patent: February 21, 1995
    Inventor: Manfred Grumberg
  • Patent number: 5299042
    Abstract: A display unit which can be used with various sources of information includes a light-to-light conversion element composed of first and second stripe electrodes arranged to jointly form a matrix electrode, and a photoconductive layer and a light modulation layer disposed between the first and second stripe electrodes, the impedance of the photoconductive layer changes with information written to the light-to-light conversion element. The photoconductive layer is irradiated with a linear light beam deflected in a direction to intersect first stripe electrode, while at the same time successive pieces of information to be inputted to corresponding picture elements are supplied to respective stripe electrode elements of the first stripe electrode. With the use of the matrix electrode, information can be written to and read out from the light-to-light conversion element at a higher response rate with high resolution.
    Type: Grant
    Filed: May 30, 1991
    Date of Patent: March 29, 1994
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Itsuo Takanashi, Shintaro Nakagaki, Ichiro Negishi, Tetsuji Suzuki, Fujiko Tatsumi, Ryusaku Takahashi