Laser Type Patents (Class 362/259)
  • Patent number: 5524984
    Abstract: Method and apparatus are provided for visibly outlining the energy zone to be measured by a radiometer. The method comprises the steps of providing a laser sighting device on the radiometer adapted to emit at least one laser beam against a surface whose temperature is to be measured and positioning said laser beam about the energy zone to visibly outline said energy zone. The apparatus comprises a laser sighting device adapted to emit at least one laser beam against the surface and means to position said laser beam about the energy zone to visibly outline said energy zone.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: June 11, 1996
    Inventors: Milton B. Hollander, W. Earl McKinley
  • Patent number: 5490128
    Abstract: An optical head of this invention includes: a light source emitting a plurality of beams from a plurality of emitting points; an optical system for focusing the plurality of beams on a recording medium; and an adjusting means for adjusting distances from the plurality of emitting points to the optical system, wherein the adjusting means includes a first member for supporting the light source and a second member for supporting the first member; the first member is rotatable around a central axis which is vertical to the plane including an optical axis of the optical system and the plurality of emitting points and passes through a point on the optical axis; and the second member is movable along a reference plane vertical to the optical axis.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: February 6, 1996
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Daisuke Ogata
  • Patent number: 5477436
    Abstract: An illuminating device for motor vehicles has a plurality of light sources formed as semiconductor light sources, each of the semiconductor light sources emitting light of only one color and light colors emitted by different semiconductor light sources are different. The semiconductor light sources include several semiconductor light sources which emit light of a same color. The semiconductor light sources are distributed so that the lights emitted by all semiconductor light sources produce a light of a uniform color which exits the illuminating device.
    Type: Grant
    Filed: July 9, 1993
    Date of Patent: December 19, 1995
    Assignee: Robert Bosch GmbH
    Inventors: Johannes-Gerhard Bertling, Doris Boebel, Peter Schoettle
  • Patent number: 5477438
    Abstract: A light source unit of the present invention is provided with a plurality of semiconductor lasers each emitting one laser beam, a bar body to which the semiconductor lasers are attached so that p-n junctions planes of respective semiconductor lasers are arranged in the same direction, and a beam restricting plate where holes for passing a part of the beam from the semiconductor laser are formed so as to correspond to the semiconductor lasers. With this feature, a plurality of laser beams of uniform optical power can be emitted at predetermined spaces.
    Type: Grant
    Filed: March 12, 1993
    Date of Patent: December 19, 1995
    Assignees: Rohm Co., Ltd., Dainippon Screen Mfg. Co. Ltd.
    Inventors: Naotaro Nakata, Naofumi Aoki
  • Patent number: 5465493
    Abstract: A pipe alignment system and method is provided for positioning a pipe line along a predetermined path. A light transmitter generates a reference light beam along which the pipe line is to be positioned. The light beam has wavelengths substantially in the green portion of the optical spectrum. An optical target is positioned at one end of each pipe section to assist in alignment thereof. Preferably, the optical target has a green tint which filters the green light from ambient light. The optical target may also have reference indicia thereon to assist in aligning the target with the reference beam of light.
    Type: Grant
    Filed: June 2, 1994
    Date of Patent: November 14, 1995
    Assignee: Spectra-Physics Laserplane, Inc.
    Inventors: Mark D. Sobottke, Daniel R. Klemer
  • Patent number: 5463534
    Abstract: An optical system for producing a high power light source comprises a number of laser diodes, or similar sources, which emit light from an emission stripe 8 having a long dimension a (x-axis) and a short dimension b (y-axis) and which have a higher numerical aperture in the y-axis than in the x-axis. The laser beams 9 are collimated by a lens 10 and focused onto an optical fiber by a further lens 20. Prior to the focusing, the collimating beams 11 are anamorphically expanded/reduced by beam shaping means 12 so that the width of each beam 11 in the x-axis is increased in relation to the width in the y-axis. The images 21 produced on the fiber end are thus anamorphically magnified so that thte anamorphic ratio between the magnification of the stripe 8 in the y-axis and in the x-axis is greater than one.
    Type: Grant
    Filed: March 24, 1994
    Date of Patent: October 31, 1995
    Assignee: Diomed Limited
    Inventor: Anthony Raven
  • Patent number: 5463497
    Abstract: An illumination device includes a radiation source; an optical integrator having an array of lenses disposed along a plane perpendicular to an optical axis of the device; a first optical system for amplitude-dividing a coherent beam from the radiation source and producing plural beams which are substantially incoherent with each other, the first optical system also being effective to project the beams to the optical integrator in different directions and to superpose the beams upon one another on the optical integrator; and a second optical system for directing beams from the lenses of the optical integrator to a surface to be illuminated and for superposing the beams upon one another on the surface to be illuminated.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: October 31, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masato Muraki, Akiyoshi Suzuki, Shunzo Imai
  • Patent number: 5450148
    Abstract: A laser pointer for projecting a laser beam with a selectable pointer pattern onto a projected screen during presentations comprising a shell body, a laser beam generating device, and a pointer pattern selector; the laser beam generating device is disposed in the front portion of the shell body and the pointer pattern selector is disposed in the rear portion of the shell body. The pointer pattern selector comprises a plurality of pointer patterns of varying geometric shapes and/or sizes, and the user can place one of the pointer patterns in the laser beam path using a rotational assembly or a horizontal shifting method so as to project a laser beam having the desired pointer pattern onto the projected screen. A magnifying lens is placed before each pointer pattern to enlarge the cross-sectional area of the laser beam to be projected through the selected pointer pattern. The magnifying lens can be in the form of a cylindrical lens so as to project a line-shaped pointer pattern.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: September 12, 1995
    Assignees: Yu S. Lin, Ray-Ing Ni, Fang-Ing Lin, Wei-Chang W. Liauh
    Inventors: Lin Y. Shu, Ray-Ing Ni
  • Patent number: 5446635
    Abstract: A laser marker including a laser marker body to hold a battery power supply and a control circuit, a laser module pivotably connected to the laser marker body and controlled by a push-button switch of the control circuit board to emit a laser beam, a set of laser firing caps alternatively mounted on the laser module to refract the laser beam by a respective plano-convex length of different focal length for marking a line of light on a workpiece for guiding a cutting tool to cut the workpiece. The laser module can be turned on laser marker body around the X-axis; the laser firing cap can be turned on the laser module around the Y-axis.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: August 29, 1995
    Assignee: Quarton, Inc.
    Inventor: E. F. Jehn
  • Patent number: 5437104
    Abstract: A laser sight mounting device including a mounting block, which has a mounting foot at the bottom for fastening to the flash attachment of a camera, a flash attachment at the top for mounting an electronic flash, a longitudinal center through hole, which receives the laser module of a laser sight, a longitudinal mounting groove inside the longitudinal center through hole, and a side screw hole; a first spring plate mounted inside the longitudinal mounting groove; a second spring plate mounted within the flash attachment of the mounting block to hold down the electronic flash; and a tightening up screw threaded into the screw hole to press the first spring plate causing it to hold down the laser module.
    Type: Grant
    Filed: August 4, 1994
    Date of Patent: August 1, 1995
    Assignee: Simpatico Industries Co., Ltd.
    Inventor: Yen-Jen Chien
  • Patent number: 5418700
    Abstract: A light source module for generating collimated laser light wherein a solid-state laser light source is mounted within the bore of an optical mounting tube at a preselected distance from the light output end of the tube, and a convergent glass lens within a metal lens mounting is permanently attached to the output end of the tube, lens attachment being at a location insuring permanent and accurate alignment of the collimated light output from the laser with the bore axis of the mounting tube, and a method for making it, are described.
    Type: Grant
    Filed: July 22, 1992
    Date of Patent: May 23, 1995
    Assignee: Corning Incorporated
    Inventors: Jeffery A. Demeritt, Mark L. Morrell
  • Patent number: 5409480
    Abstract: An endoscope laser system console including a chassis having a front wall, a rear wall, and a first side wall connecting the front and rear walls; an interior wall connected to the rear wall and positioned substantially perpendicular to the rear wall, the interior wall extending forward to approximately midway between the front and rear walls, a first rear channel zone on a first side of said interior wall, a second rear channel zone on a second side of said interior wall, and a front area zone in communication with the first and second rear channel zones; a laser assembly positioned within the first rear channel zones; a system electronics assembly positioned within the second rear channel zone; a lamp assembly positioned within the front area zone; a camera assembly positioned within the front area between the front wall and the lamp assembly; an intake fan mounted on the rear wall for supplying air into the first rear channel zone over the laser assembly; an exhaust fan mounted on the rear wall for forcing
    Type: Grant
    Filed: September 3, 1993
    Date of Patent: April 25, 1995
    Inventor: Martin Uram
  • Patent number: 5404002
    Abstract: A backup method for a multiple source optical scanner which alerts an operator when one of the sources has failed. A controller monitors the operation of each source and flags the failed sources. In the case of a scanner having dual full-time channels, the controller removes power from the failed source and disregards the signal from the failed source. In the case of a scanner having non-simultaneously operating sources, the controller switches the remaining source of the scanner to full-time operation. If both sources have failed, power to the failed sources is turned off.
    Type: Grant
    Filed: May 17, 1993
    Date of Patent: April 4, 1995
    Assignee: AT&T Global Information Solutions Company
    Inventor: Hong Tang
  • Patent number: 5368392
    Abstract: Method and apparatus are provided for visibly outlining the energy zone to be measured by a radiometer. The method comprises the steps of providing a laser sighting device on the radiometer adapted to emit at least one laser beam against a surface whose temperature is to be measured and positioning said laser beam about the energy zone to visibly outline said energy zone. The apparatus comprises a laser-sighting device adapted to emit at least one laser beam against the surface and means to position said laser beam about the energy zone to visibly outline said energy zone.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: November 29, 1994
    Assignee: Omega Engineering, Inc.
    Inventors: Milton B. Hollander, W. Earl McKinley
  • Patent number: 5365413
    Abstract: A vehicle lighting system having a central light producing unit and bundles of optical fibers for the transport of light to lighting fixtures is provided. The central light-producing unit has a defined axis and at least one light source for producing light. The central light producing unit includes means for rotating the at least one light source about the axis. The light system further includes at least one light guide for receiving and guiding light produced by the at least one light source to at least one lighting fixture. The at least one light source is preferably rotated about a support collar which has at least one light guide, but preferably a plurality, connected to the collar. The light guides are preferably equally spaced about the periphery of the collar and which light guides receive and transport the light to light fixtures appropriately arranged in or on the vehicle.
    Type: Grant
    Filed: March 8, 1993
    Date of Patent: November 15, 1994
    Assignee: Zizala Lichtsysteme GmbH
    Inventor: Gert Krammer
  • Patent number: 5359458
    Abstract: A scanner comprising a light source, having non-uniformities, for transmitting light through an input sample, and a cassette for holding the input sample, wherein a distance from the light source to the cassette is long enough to cause the effects of the non-uniformities to be substantially reduced.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: October 25, 1994
    Assignee: Scitex Corporation Ltd.
    Inventors: Haim Z. Melman, Eran Elizur
  • Patent number: 5343376
    Abstract: A laser pointer is disclosed including a laser module fitted into a conductive cylindrical casing and attached with a laser firing lens assembly and connected to a battery set and controlled by a switch to fire a laser beam for pointing, the laser module including a focus adjusting element threaded into the inner thread on the cylindrical shell thereof, whereby rotating the focus adjusting element on the cylindrical shell in either direction causes change of distance between the lens of the laser firing lens assembly and the laser diode of the laser module so that the focus is adjusted. The switch has a switching control press rod for switch control, and for fastening to the pocket as the laser pointer is not in use.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: August 30, 1994
    Inventor: Chao C. Huang
  • Patent number: 5335150
    Abstract: A laser pointer is disclosed consisted of a laser module, a housing, a toggle switch, a push button, a constant power output control circuit, a ballpoint pen, a battery set, and a rotary cap, wherein the housing has chambers to hold the laser module, the battery set, and the push button ballpoint pen, and a clip for hanging; the toggle switch has a press rod controlled by a button to press a leaf spring on a PC board so as to electrically connect the battery set to the laser module in driving the laser module to emit a laser beam for pointing to things.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: August 2, 1994
    Inventor: Chao C. Huang
  • Patent number: 5319528
    Abstract: An optical system for producing a high power light source comprises a number of laser diodes, or similar sources, which emit light from an emission stripe 8 having a long dimension a (x-axis) and a short dimension b (y-axis) and which have a higher numerical aperture in the y-axis than in the x-axis. The laser beams 9 are collimated by a lens 10 and focused onto an optical fibre by a further lens 20. Prior to the focusing, the collimating beams 11 are anamorphically expanded/reduced by beam shaping means 12, so that the width of each beam 11 in the x-axis is increased in relation to the width in the y-axis. The images 21 produced on the fibre end are thus anamorphically magnified so that the anamorphic ratio between the magnification of the stripe 8 in the y-axis and in the x-axis is greater than one.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: June 7, 1994
    Assignee: Diomed Limited
    Inventor: Anthony Raven
  • Patent number: 5309339
    Abstract: An optical concentrator increases the power density from diffuse optical energy remitted by an optically diffusing surface by at least partially recollimating the diffuse optical energy. The concentrator includes an optical diffuser element illuminated at a first point by optical input energy and remitting incident optical energy. A reflective element has a reflective surface with a concentration point located at the first point and the reflective surface reflects diffuse optical energy incident on it from the diffuser element. At least one aperture is provided for the transmission of an output beam formed by a portion of the diffuse optical energy from at least the diffuser element.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: May 3, 1994
    Assignee: The Schepens Eye Research Institute, Inc.
    Inventor: Robert H. Webb
  • Patent number: 5307253
    Abstract: A laser pointer is disclosed consisted of a laser module, a housing, a toggle switch, a push button ballpoint pen, a battery set, and a rotary cap, wherein the housing has chambers to hold the laser module, the battery set and the push button ballpoint pen, and a clip for hanging; the toggle switch has a press rod controlled by a button to press a leaf spring on a PC board so as to electrically connect the battery set to the laser module in causing the laser module to emit a laser beam for pointing to things.
    Type: Grant
    Filed: December 9, 1992
    Date of Patent: April 26, 1994
    Inventor: E. F. Jehn
  • Patent number: 5307207
    Abstract: An illuminating optical apparatus comprises a stable resonator type laser equipped with a wavelength selecting element and a device for vibrating the beam one-dimensionally in a direction crossing the longer direction of the beam cross section at at least one of the entrance side and exit side of a fly's eye lens or optical integrator.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: April 26, 1994
    Assignee: Nikon Corporation
    Inventor: Yutaka Ichihara
  • Patent number: 5268829
    Abstract: A laser pointer comprised of a projector, a light spot controller, a base, a telescopic stick, a telescopic stick supporting spring plate, a concealed microphone, a laser light generating PC board, a sliding switch knob, an upper cover, a switching control spring plate, a switch control hook, and a witch, wherein rotating said projector causes said light spot control to be moved leftward or rightward permitting a small or big projecting hole to be aligned with said projector for passing a laser light beam produced by said laser light generating PC Board; said switching control spring plate keeps said switch to be maintained off before pressing down said sliding switch knob so as to prevent error triggering.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: December 7, 1993
    Inventor: Tien L. Lo
  • Patent number: 5255167
    Abstract: A finger mounted laser spotlight is constructed of a near-infrared continuous wave laser diode powered by a miniature power supply powered in turn by a nine volt battery. The laser diode is mounted inside a cylindrical heat sink housing which includes a focusable lens assembly. A momentary switch is connected in-between the power supply and battery. Cables interconnecting the components are sized to preselected lengths so that, when the power supply and battery are positioned over a wrist or other portion of the arm behind the fingers, the laser diode and housing are positioned over an index finger and the momentary switch is positioned between a thumb and index finger. In use, the momentary switch is pressed and held to provide a beam of near-infrared light.
    Type: Grant
    Filed: December 17, 1992
    Date of Patent: October 19, 1993
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Gregory J. Toussaint, Gregory R. Lynch, Robert J. Feldmann
  • Patent number: 5253110
    Abstract: An illumination optical arrangement which uses a laser light source to produce a uniform illumination which is high in brightness and substantially free of interference patterns. The illumination optical arrangement includes light source means for emitting a coherent light beam, optical illuminance distribution uniformizing means for making substantially uniform the intensity distribution in a beam cross-section of illumination by the coherent light beam on a plane to be illuminated, and optical polarizing means for producing from the coherent light beam a plurality of polarized light components which are different in polarized state from each other in such a manner that wavefronts of incident light beams of the polarized light components to the optical illuminance distribution uniformizing means are inclined relative to each other whereby interference patterns produced by the polarized light components are relatively shifted in position in the illuminated plane.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: October 12, 1993
    Assignee: Nikon Corporation
    Inventors: Yutaka Ichihara, Yuji Kudo
  • Patent number: 5212709
    Abstract: This invention relates means for illumination of sealed bulbs containing an predetermined inner gaseous environment to be excited to a spontaineous emission predominately by frequency modulated photon pumped into sealed bulb through a fiber-optic waveguide by a laser, said waveguide being clad where is extends from laser and is coupled to sealed bulb and unclad where it extends through sealed bulb, and further has an intragally formed reflective end section for provisions of feedback of frequency modulated photons through the waveguide core at the output end, thereby producing counter-travelling photons within the waveguide causing said photons to collide at a variety of incident angles as to cause photons to be emitted from the unclad waveguide within sealed bulb therefore stimulating the inner gaseous environment to a spontaineous emission which in turn stimulates a frequency modulated fluorescent photon interaction coating source which creates visible light.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: May 18, 1993
    Inventor: Daniel C. Mihm
  • Patent number: 5211473
    Abstract: A glare control lamp and reflector assembly and method for glare control which includes a lamp and reflector for providing a controlled light beam to a target area. The reflector can be altered to alter the controlled light beam. Also, light controlling devices can be positioned on or in the reflector to control light.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: May 18, 1993
    Assignee: Musco Corporation
    Inventors: Myron K. Gordin, Jim L. Drost
  • Patent number: 5195821
    Abstract: A mounting apparatus for mounting an electronic component on a circuit board, which apparatus has a pickup head with a suction nozzle arranged to be movable on a horizontal plane and further movable vertically with respect to the horizontal plane, thereby picking up and carrying the electronic component to the circuit board. The apparatus is also equipped with a laser monitoring section for monitoring the electronic component picked up by the pickup head. The laser monitoring section includes a laser illuminating device for emitting a laser light beam to the electronic component placed at a monitoring position and for receiving light reflected from the electronic component to obtain information indicative of a state of the electronic component. The laser illuminating device is encased within a cover device arranged to be openable and closable to receive the picked-up electronic component and cover the electronic component when reaching the monitoring position.
    Type: Grant
    Filed: March 5, 1992
    Date of Patent: March 23, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventor: Shigeru Eguchi
  • Patent number: 5163747
    Abstract: A desk lamp comprising a lamp socket having a radially slotted diffuser connected to an elongated socket body thereof supported on a speaker above a spherical ceramic sound chest and covered with a lamp shade to hold a lamp bulb. Output sound waves from said speaker are guided by a spherical rod and evenly distributed through the radial slots on said diffuser.
    Type: Grant
    Filed: March 26, 1992
    Date of Patent: November 17, 1992
    Inventor: Wei-Kwang Cheng
  • Patent number: 5144524
    Abstract: A surface analysis scanner system includes calibration targets, which include a target substrate and a film covering the surface of the target substrate which is scanned by the surface scanner. The film is antireflective to the particular scanned light. Particles which contaminate the antireflectance film on the substrate do not scatter sufficient light to be detected by the surface analysis scanner detectors and thus do not interfere with the calibration of the scanner. The calibration targets may include reference features which are etched into the substrate surface or deposited on the antireflectance coated substrate surface which scatter light in a manner similar to particles on a surface. The reference features may also be embedded in a transparent material supported by the antireflectance coated substrate with a second antireflectance film coating the upper surface of the transparent material.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: September 1, 1992
    Assignee: Hewlett-Packard Company
    Inventors: Barclay J. Tullis, James B. Kruger
  • Patent number: 5142462
    Abstract: The illuminating optical system comprises a light source for emitting a light beam having an elongated sectional shape in parallel with the optical axis thereof, and a condenser lens for focusing said light beam onto a sample. This illuminating optical system permits easily correcting aberrations in the lens system thereof, assures little loss of light amount, has high operability and can easily be manufactured.
    Type: Grant
    Filed: April 27, 1990
    Date of Patent: August 25, 1992
    Assignee: Olympus Optical Co., Ltd.
    Inventor: Shingo Kashima
  • Patent number: 5132887
    Abstract: A multi-articulation type robot for a laser operation by emitting a beam of laser into a desired position in a three-dimensional space, and provided with a first hollow robot arm (16) swingably pivoted to an upper end of a robot swivel body (14) mounted on a robot base (12), a second hollow robot arm (18) swingably pivoted to a front end of the first robot arm (16) and rotatable about a central axis of the second robot arm per se, and a robot wrist (20) mounted on a front end of the second robot arm (18) and provided with a laser beam collecting unit (22) having a laser beam emitting outlet (22a), the robot wrist (20) being provided with motion transmitting mechanisms for converting first and second rotative inputs transmitted by a first and second hollow rotatable drive shafts (30a and 30b) arranged inside the second robot arm (18) into motions by which the laser beam collecting unit (22) is rotated about an axis orthogonal to an axis along which a laser beam is emitted, and to move the unit (22) forward and
    Type: Grant
    Filed: June 15, 1990
    Date of Patent: July 21, 1992
    Assignee: Fanuc Limited
    Inventors: Nobutoshi Torii, Susumu Ito, Akihiro Terada, Yasuo Sasaki
  • Patent number: 5107409
    Abstract: An optical head for use in an optical information recording/reproducing apparatus includes an optical system comprising a plurality of optical elements including a light-emitting element, and a casing which securely mounts at least part of the optical elements. The casing is provided with a vibration damping material which is effective to damp vibrations of the casing.
    Type: Grant
    Filed: February 13, 1990
    Date of Patent: April 21, 1992
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Michihiro Tadokoro, Kazuo Okada
  • Patent number: 5095629
    Abstract: A laser beam target for use with a projector capable of providing a reference laser beam of light traveling in a predetermined path is provided and includes a main body portion having first and second surfaces. A plurality of projections are provided on at least one of the first and second surfaces for directing at least a portion of the reference beam of light into a specific range of vertical viewing angles away from the path of the beam as the light passes from the body, thereby permitting a worker viewing the target to more easily determine when the reference beam of light is in alignment with appropriate reference indicia on the target.
    Type: Grant
    Filed: January 31, 1991
    Date of Patent: March 17, 1992
    Assignee: Spectra-Physics Laserplane, Inc.
    Inventors: Daniel R. Klemer, Mark D. Sobottke, Ted L. Teach
  • Patent number: 5072338
    Abstract: An inspection/detection system for use in forensic applications includes a carrying case, a high intensity lamp assembly and a plurality of notch filters. The carrying case has a cover-lid and is a rectangular box with a closed end and an open end to which the cover-lid is hingedly coupled. The high intensity lamp assembly generates light energy of multiple wavelengths within the visible spectrum and infrared spectrum. The high intensity lamp assembly has an output aperture and is mounted within the carrying case. A power supply unit is mounted within the carrying case and energizes the high intensity lamp assembly in order to generate light energy therefrom. An optical connector is optically coupled to the output aperture of the high intensity lamp assembly. A flexible optical fiber cable is optically coupled to the optical connector.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: December 10, 1991
    Inventors: William F. Hug, Edwin A. Reed, Ray D. Reid
  • Patent number: 5056097
    Abstract: Devices for illuminating a target with a beam of coherent energy. The device has a number of applications. In one, it is employed with a night vision system to make available additional energy which can be utilized by an image intensifier in the night vision system in prodcing a visual image of a target acquired by the night vision system.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: October 8, 1991
    Inventor: Brad E. Meyers
  • Patent number: 5036517
    Abstract: Devices for illuminating a target with a beam of coherent energy. The device has a number of applications. In one, it is employed with a night vision system to make available additional energy which can be utilized by an image intensifier in the night vision system in producing a visual image of a target acquired by the night vision system.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: July 30, 1991
    Inventor: Brad E. Meyers
  • Patent number: 5029975
    Abstract: The invention comprises a method and apparatus for decohering coherent light projected onto a screen by transmitting the coherent light through a series of light conducting optical fibers, preferably of varying length.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: July 9, 1991
    Assignee: The Mitre Corporation
    Inventor: Richard W. Pease
  • Patent number: 5029970
    Abstract: An adapter is disclosed which is suitable for connecting a light guide end piece to a coupling device of a light source of high intensity, particularly of a medical laser apparatus. The adaptor has a first section 2 which can be fixed in the coupling device 11 as well as a second section 3 which can be axially slid with respect to the first section 2. The second section 3 carries an input lens system 4 and, when the light guide end piece 20 is pushed in, is axially displaced from the first I to a second II position and locked there. Safety devices of the laser apparatus which prevent a start of the operation without any inserted light guide are switched only in the second position II.
    Type: Grant
    Filed: January 31, 1990
    Date of Patent: July 9, 1991
    Assignee: Messerschmitt-Bolkow-Blohm GmbH
    Inventors: Thomas Hengst, Andreas Hahn
  • Patent number: 5016149
    Abstract: An illuminating method and an illuminating apparatus for use in combination, for example, with an exposure apparatus. The illuminating apparatus comprises amplitude distribution control means for converting the intensity distribution of a light beam emitted by a highly directional light source into a substantially linear intensity distribution, beam splitting means for splitting the light beam into a plurality of component beams, and superposing means for superposing the component beams in a desired area on an object, such as a reticle, in an uniform illuminance distribution.
    Type: Grant
    Filed: November 20, 1989
    Date of Patent: May 14, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Minoru Tanaka, Yoshitada Oshida, Yasuhiro Yoshitake, Tetsuzo Tanimoto
  • Patent number: 4939863
    Abstract: A laser aiming device having a plasma tube encased by a cylindrical member upon which windage and elevation adjustments act. Resilient ring members separate the cylindrical member from the plasma tube. Another resilient member located between the cylindrical member and an outer housing member cavity wall provides counterforces against which the windage and elevation adjustments act.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: July 10, 1990
    Assignee: Emerging Technologies, Inc.
    Inventors: James R. Alexander, Acie G. Johnson, Glenn W. Prentice
  • Patent number: 4933816
    Abstract: An inspection/detection system is for use in forensic applications. The inspection/detection system includes a carrying case which has a cover-lid, a light module and a power supply module. The carrying case is a rectangular box with a closed end and an open end to which the cover-lid is hingedly coupled. The light module is mounted within the carrying case and has an output aperture. The light module may be an argon laser head. The power supply module is disposed within the carrying case and energizes the light module to generate light energy therefrom. The inspection/detection system also includes an optical connector and a shutter assembly. The optical connector is optically coupled to the output aperture. The shutter assembly is optically coupled to the optical connector. The inspection/detection system further includes a flexible optical fiber, a remote control handpiece and a heat exchanger. The flexible optical fiber cable is optically coupled to the optical connector.
    Type: Grant
    Filed: May 19, 1988
    Date of Patent: June 12, 1990
    Inventors: William F. Hug, Edward A. Reed, Ray D. Reid
  • Patent number: 4932747
    Abstract: An apparatus and method are provided to homogenize the intensity profile of the beam emitted by an excimer laser. The excimer laser beam is collected by a closely packed ultraviolet-grade optical fiber bundle array having its individual fibers intermingled in a random or preconceived format to result in an intermixing of the light from the individual fiber cores to produce a uniform intensity profile. The output ends of the fibers are gathered or fused, and optionally tapered. before being cleaved to provide an output face that is custom shaped for a desired illumination pattern. The flexible nature of the fiber bundle allows for remote materials processing applications.
    Type: Grant
    Filed: September 7, 1989
    Date of Patent: June 12, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Stephen D. Russell, George P. Imthurn
  • Patent number: 4916579
    Abstract: A gradient index zoom illuminator which may be used for visible or infrared illumination comprises a housing which has a light exit opening in it. A point or collimated light source is mounted in the housing. A gradient index lens, having a central axis, also is mounted in the housing between the light source and the light exit opening in the housing; and the light source is located on the axis of the lens. Focusing of the light exiting from the light exit opening of the housing is accomplished by changing the relative distance between the light source and the gradient index lens to vary the beam of emitted light from a maximum divergence to to a narrow collimated beam.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: April 10, 1990
    Assignee: Murasa International
    Inventor: Robert A. Simms
  • Patent number: 4911532
    Abstract: A laser optical system is disclosed which has light source units disposed on a substrate for an assembly incorporating therein a receiving medium such as a photosensitive film. One collimating lens unit and a plurality of semiconductor lasers for emitting laser beams of mutually different wavelengths are attached to the base of the light source unit. The laser beams are superposed one on top of another through the medium of dichroic prisms of dichroic mirrors and the superposed laser beams are caused to impinge on the collimating lens. By fine adjusting units, the laser beams can be moved for fine adjustment in three-dimensional directions. By adjusting the positions of the semiconductor lasers with the finely adjusting means relative to the collimating lens unit, the positions of the optical axes of the laser beams and the diameters of the beams can be easily adjusted.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: March 27, 1990
    Assignee: Minolta Camera Kabushiki Kaisha
    Inventor: Shinobu Hidaka
  • Patent number: 4887197
    Abstract: Methods and apparatus are disclosed for reflecting a laser beam so that it traverses a path on a display surface defining a visible display pattern responsive to an audio frequency input signal. The input signal is provided to a speaker, and the laser beam reflects off a front surface mirror, mounted onto the speaker so that the mirror vibrates responsive to the input signal.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: December 12, 1989
    Assignee: O'Ryan Industries
    Inventor: Mark A. Effinger
  • Patent number: 4858090
    Abstract: An ellipsoidal reflector system concentrating energy utilizing two effects- one being that light passing through one focus of an ellipse will tend to line up with the major axis after each reflection, combined with the other in the properties of ellipses rotated off-axis having one distributed focus and one point focus. After a few reflections light having originally passed through one focus is, for practical purposes, running along the major axis even though the major axis is approached as an asymptote. This energy concentration system would be quite useful as a source of highly collimated light such as would be more practical for field surveying work than, for example, lasers, for optical alignment, and fiber-optic carrier media input. In addition to light some of these ellipsoidal reflector systems for concentration of energy are also effective for ultrasonics and/or shock waves.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: August 15, 1989
    Inventor: James W. Downs
  • Patent number: 4851978
    Abstract: An illumination device forms a secondary light source having N spots by vibrating a laser beam having a wavelength .lambda. emitted from a pulsed laser by a vibration mirror having a swing angle .theta..sub.0, and irradiates an object to be illuminated through a plurality of lens elements arranged at a spacing d. Those elements meet relations ofd=m.(.lambda./.theta..sub.0)N.(.lambda./.theta..sub.0)>M.dwhere M is the number of lens elements in a predetermined array direction of the plurality of lens elements included in at least a spatial coherent area and m is any integer. Light intensity of the pulsed laser illumination is adjusted such that a total light intensity of the laser beam having pulses satisfying the above relations is equal to a light intensity required for the object to be illuminated.
    Type: Grant
    Filed: December 21, 1987
    Date of Patent: July 25, 1989
    Assignee: Nikon Corporation
    Inventor: Yutaka Ichihara
  • Patent number: 4787013
    Abstract: An optical projection apparatus is disclosed for generating a planar light beam of substantially uniform intensity from a nonplanar multi-element light source 10 projecting a beam having a generally Gaussian intensity distribution. Light from the source 10 passes through an optical integrator rod 52 having a faceted entrance face 54 and a spherical exit face 50. The spherical exit face 50 is designed to move the image 42 of the rod entrance face that would otherwise be created between the objective lens 14 and output plane 40 to a position 48 between the lens 14 and the exit face 50. In such manner, localized hot spots which may be created by the image 42 of the entrance face are substantially eliminated thereby ensuring that the entire length of the beam between the lens 14 and output plane 40 has a substantially uniform intensity distribution.
    Type: Grant
    Filed: November 30, 1987
    Date of Patent: November 22, 1988
    Assignee: Santa Barbara Research Center
    Inventors: Paul S. Sugino, Leland V. Gardner
  • Patent number: 4744615
    Abstract: A coherent laser beam having a possibly non-uniform spatial intensity distribution is transformed into an incoherent light beam having a substantially uniform spatial intensity distribution by homogenizing the laser beam with a light tunnel (a transparent light passageway having flat internally reflective side surfaces). It has been determined that when the cross-section of the tunnel is a polygon (as preferred) and the sides of the tunnel are all parallel to the axis of the tunnel (as preferred), the laser light at the exit of the light tunnel (or alternatively at any image plane with respect thereto) will have a substantially uniform intensity distribution and will be incoherent only when the aspect ratio of the tunnel (length divided by width) equals or exceeds the contangent of the input beam divergence angle .theta. and whenW.sub.min =L.sub.coh (R+(1+R.sup.2).sup.1/2)>2RL.sub.coh,where W.sub.min is the minimum required width for the light tunnel, L.sub.
    Type: Grant
    Filed: January 29, 1986
    Date of Patent: May 17, 1988
    Assignee: International Business Machines Corporation
    Inventors: Bunsen Fan, Raymond E. Tibbetts, Janusz S. Wilczynski, David F. Witman