Gun, Flashlight Or Battery Operated Type Patents (Class 353/43)
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Patent number: 11874587Abstract: Embodiments of the present disclosure, provide a projection image anti jitter method and apparatus, and a projector. With the projection image anti jitter method, jitter data of a projection lens is captured; jitter characteristic information and offset data are acquired by calculation; and the projection image is adjusted based on the offset data.Type: GrantFiled: November 19, 2021Date of Patent: January 16, 2024Assignee: IVIEW DISPLAYS (SHENZHEN) COMPANY LTD.Inventors: Ziguang Zhou, Steve Yeung, Zhiqiang Gao, Augustus Yeung, Mingnei Ding
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Patent number: 11757250Abstract: A portable lighting apparatus is provided with a gallium-and-nitrogen containing laser diode based white light source combined with an infrared illumination source which are driven by drivers disposed in a printed circuit board assembly enclosed in a compact housing and powered by a portable power supply therein. The portable lighting apparatus includes a first wavelength converter configured to output a white-color emission and an infrared emission. A beam shaper may be configured to direct the white-color emission and the infrared emission to a front aperture of a compact housing of the portable lighting apparatus. An optical transmitting unit is configured to project or transmit a directional light beam of the white light emission and/or the infrared emission for illuminating a target of interest, transmitting a pulsed sensing signal or modulated data signal generated by the drivers therein. In some configurations, detectors are included for depth sensing and visible/infrared light communications.Type: GrantFiled: December 23, 2019Date of Patent: September 12, 2023Assignee: KYOCERA SLD Laser, Inc.Inventors: James W. Raring, Paul Rudy
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Patent number: 10884167Abstract: A handheld projector for visually defining an event zone on a grid mat of a tabletop game to obviate the need to manually make proximity calculations during game play to determine whether players indicated on a game board are located in sufficient proximity to a virtual event to be effected.Type: GrantFiled: July 17, 2018Date of Patent: January 5, 2021Inventors: Clifford Newman, Chris Canfield
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Patent number: 10156341Abstract: A lighting device for motor vehicle comprising a light source configured to emit light rays; an optical system optically coupled to a first portion of said light rays and configured to output said first portion of the light rays to provide a vehicle lighting function; and a mask optically coupled to a second portion of said light rays. The mask is configured to pass a projecting part of said second portion of the light rays and to cut off passage of a blocked part of said second portion of the light rays such that the second portion of the light rays forms a pattern of light and shadows on a surface.Type: GrantFiled: June 19, 2017Date of Patent: December 18, 2018Assignee: Valeo North America, Inc.Inventor: Robert King
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Patent number: 9841822Abstract: The disclosure provides a method and device detecting a moving signal indicative of a movement of a mobile terminal by a vibration sensor embedded in the mobile terminal and executing a conditional assembly operation on a touch screen of the mobile terminal in response to detection of the moving signal.Type: GrantFiled: December 30, 2013Date of Patent: December 12, 2017Assignee: Guangzhou UCWEB Computer Technology Co., Ltd.Inventor: Jie Liang
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Patent number: 9539936Abstract: The present invention provides an automobile lamp having a floating lighting image, including: a light pattern which is configured by an assembly of light sources; a lens which is provided with an interval from the light pattern; and an image object which is provided between the light pattern and the lens.Type: GrantFiled: October 22, 2014Date of Patent: January 10, 2017Assignee: HYUNDAI MOBIS CO., LTD.Inventor: Young Ki Min
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Patent number: 9122123Abstract: A projector includes: a judging section that judges whether or not an event representing an instruction to project a message image containing a character string has occurred; a projection distance information generating section that generates projection distance information representing a projection distance when the event has occurred; a focus adjusting section that carries out focus adjustment for projection based on the projection distance information; and a projecting section that projects the message image after the focus adjustment is started.Type: GrantFiled: June 11, 2010Date of Patent: September 1, 2015Assignee: Seiko Epson CorporationInventor: Tadao Takahashi
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Patent number: 9097413Abstract: A light emitting diode night light system can include: a tube housing; a light emitting diode positioned at one end of the tube housing, the light emitting diode for providing a visible light beam; a lens positioned at a different end of the tube housing from the light emitting diode; and an optical component positioned within the tube housing, the optical component positioned between the light emitting diode and the lens, and the optical component arranged perpendicularly to the visible light beam and configured to create an image from the visible light beam.Type: GrantFiled: February 13, 2015Date of Patent: August 4, 2015Inventor: Tseng-Lu Chien
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Patent number: 9081269Abstract: A lighting device equipped with means for receiving and delivering multimedia content is described. Such a device can be mounted on any type of pre-existing standard lamp-holder so as to transform it into a sophisticated system for providing adjustable lighting and for delivering multimedia content that can be updated as desired by the user, thus being able to be integrated in a simple and cost-effective way into the room furniture without requiring the addition of other elements or the replacement of any pre-existing lighting system.Type: GrantFiled: December 23, 2010Date of Patent: July 14, 2015Assignees: AIDILAB S.R.L., SECO S.R.L., SOFTEC S.P.A.Inventor: Daniele Conti
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Patent number: 8955976Abstract: An image animation system having a plurality of individual image projectors focused onto a single focal area on a projection surface or medium. Angled optics, or a prism, may be used to direct the projections onto the single focal area. Individual still images are projected in a sequence to created a projected motion animation.Type: GrantFiled: August 30, 2013Date of Patent: February 17, 2015Assignee: Fishco Innovation LLCInventor: Troy Fischer
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Patent number: 8896899Abstract: A laser marker/pointer for projecting circular or elliptical laser beam patterns onto a target surface such as a portion of a presentation screen or to assist in the aiming of a firearm, comprises a handheld shell body in which is mounted a laser light source, a rotating optical mirror driven by a motor, and an electronic drive circuit, whereby the aspect ratio of the marking pattern is determined by the geometric relationship of the motor shaft axis, the laser beam, and the mirror surface. The motor drive circuit when initially powered (along with the laser diode), applies full power (a continuous DC voltage to the motor to overcome inertia), followed by a pulsed voltage to lower the duty cycle of the motor, increase battery life, and reduce rotational noise.Type: GrantFiled: May 15, 2013Date of Patent: November 25, 2014Inventor: Zhen Tang
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Patent number: 8740395Abstract: A projection unit comprises a first light source outputting light that is used to project an image during normal projection unit use, and a second light source outputting light of a different intensity that is used to project an image outside of normal projection unit use.Type: GrantFiled: April 1, 2011Date of Patent: June 3, 2014Assignee: SMART Technologies ULCInventors: Douglas Blair Hill, Jackson Chan
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Patent number: 8641198Abstract: Herein featured is a Night Light which can be held by a user that displays three dimensional projected images. The Night Light also equipped with an additional 3-D lens attachment allows the user added viewing fun of the projected images. The all light calm mode feature allows the user to illuminate the Night Light in the event that a user needs illumination quickly or as a stand alone Night Light.Type: GrantFiled: June 7, 2011Date of Patent: February 4, 2014Inventor: Marcos T. Feliciano
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Patent number: 8567961Abstract: A low cost, light projection and sensing system that projects an image onto a display surface using an array of light emitters. The system or device has an integral sensing capability of the display surface using light sensors. Both the emitters and sensors are coupled to a control unit. The device modifies the light-projected image and sensor view region with its control unit. The device projects an animated overlaid image or large tiled image of photographic resolution. In at least one embodiment, a projection device may create smooth animation of its projected image by varying the brightness of one or more illuminated images within its generated video frames. Computer implemented methods are utilized for light emitter activation and brightness control.Type: GrantFiled: December 23, 2011Date of Patent: October 29, 2013Inventor: Kenneth J. Huebner
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Patent number: 8297756Abstract: An illumination device is including an illumination body and a hollow sleeve. A light emitting element and a transparent sheet is disposed in the illumination body. A first convex lens is disposed in the hollow sleeve. The light emitting element, the transparent sheet, and the first convex lens are arranged sequentially along a moving direction. When the hollow sleeve is operated to move along the moving direction, the first convex lens is moved with respect to the light emitting element and the transparent sheet, and the projection facula is changed from presenting a light source pattern of the light emitting element to a predetermined pattern of transparent sheet.Type: GrantFiled: May 19, 2010Date of Patent: October 30, 2012Inventors: Chieh Ouyang, Wei Ouyang
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Publication number: 20120154754Abstract: A small projection toy of an incorporation-in-small-article type, the small projection toy configured such that: a small projector including a projection lens barrel and a battery unit can be housed in a small article such as various local specialties, models of animals and vehicles, toys; and an incorporated image film can be watched by projection.Type: ApplicationFiled: February 29, 2012Publication date: June 21, 2012Applicant: Yugen Kaisha RabbitInventors: Takashi Maeda, Nobukazu Maeda, Arisa Miyazato
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Patent number: 8147066Abstract: A portable type information device includes: a projector device that, with illumination light from a light source unit, projects a projection pattern which has been created upon an image pattern generation unit to an exterior of the portable type information device via a projection lens; and a power supply command device that commands the projector device to turn ON only a power supply to the light source unit. The projector device is configured to be utilized as a simple electric torch. In addition, by retracting the image pattern generation unit from an optical path for projection, the illumination light can be irradiated to the exterior effectively.Type: GrantFiled: September 21, 2005Date of Patent: April 3, 2012Assignee: Nikon CorporationInventors: Hirotake Nozaki, Nobuhiro Fujinawa, Akira Ohmura, Tadashi Ohta
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Patent number: 8100540Abstract: A low cost, light projection and sensing system that projects an image onto a display surface using an array of light emitters. Further, the device has an integral sensing capability of the display surface using light sensors. Both the emitters and sensors are coupled to a control unit. Whereby, the device can modify the light-projected image and sensor view region with its control unit. The device can also project an animated overlaid image or large tiled image of photographic resolution. In operation, the device can determine the position and range of a remote object, along with illuminating its touch sensitive housing with a projected image.Type: GrantFiled: May 4, 2009Date of Patent: January 24, 2012Inventor: Kenneth J. Huebner
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Publication number: 20110234986Abstract: A projection image display apparatus includes: a first casing which includes an image projection unit provided therein and a projection window provided at one end side thereof; and a second casing which has one end side coupled with the other end side of the first casing pivotably around a pivot axis. The first casing and the second casing are switchable between a first condition in which one side surface of the first casing and one side surface of the second casing are aligned opposite to each other and a second condition in which the first casing is pivoted from the first condition around the pivot axis within a plane orthogonal to the pivot axis and thus erected relative to the second casing.Type: ApplicationFiled: March 22, 2011Publication date: September 29, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventor: So SUZUKI
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Publication number: 20110188004Abstract: A projection-type image display apparatus includes an imaging light generation portion which generates imaging light, a housing which stores the imaging light generation portion, and a passage region provided in the housing, through which the imaging light emitted from the imaging light generation portion passes. The housing has a movable portion of which dimension in at least one direction varies, and the passage region is stored in the housing by means of the movable portion while imaging light is not projected.Type: ApplicationFiled: January 25, 2011Publication date: August 4, 2011Applicant: SANYO ELECTRIC CO., LTD.Inventors: Makoto MAEDA, Hideyuki KANAYAMA, Takehiko ASANO, Toru KIRIMURA, Satohiro OZAWA, Masanori TANINA, Tatsuya HIROOKA, Masashi ODA, Shinya MATSUMOTO
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Publication number: 20110007496Abstract: The LED or Laser projection light has more than one function to get certain purpose which selected from desire group combination including conventional all kind of light device, 2nd or more other projection light with different light source(s) to project light beam or image or digital datas from digital data storage means, desk top light, floor light, garden light, emergency light, safety light, anti/burglar light, under water light, street light, reading light, night light, light fixture, motion sensor light, power fail light, photo sensing light, dimmable light, spot light, seasonal light, Christmas all kind of light and ornament, licensee products, cartoon character related products, promotion light, commercial light, sign, motion sensor light, blue tooth light, moving device, car light, vehicle light, boat light, aircraft light, all different purpose LED light or Laser for all purpose with rechargeable or non-rechargeable energy storage kits with preferred circuit means, switch means, sensor means, timerType: ApplicationFiled: September 21, 2010Publication date: January 13, 2011Inventor: Tseng-Lu CHIEN
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Publication number: 20100315607Abstract: A MINI PROJECTOR FOR CALENDAR DATA is a pocket size integrated device, combining the ability to render monthly calendar images with the ability to project them on an external surface from an integrated standalone tool. The innovative idea is the combining of the above capabilities into one device comprising independent energy source (battery), embedded calendar rendering application, integrated image projection component (light source), adjustable focus lens and operating control buttons.Type: ApplicationFiled: July 25, 2009Publication date: December 16, 2010Inventor: EMIL MIHAYLOV
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Patent number: 7798656Abstract: A projector device, includes: a projector unit, including a light source and a projection lens whose focal position is variable, that projects an image upon a projection surface with a light flux outputted from the light source that passes through the projection lens; an image-capturing unit, including a photographic lens whose focal position is variable, that captures an image of a subject with a light flux from the exterior that passes through the photographic lens; and a single drive source that generates drive force for changing both the focal position of the projection lens and the focal position of the photographic lens.Type: GrantFiled: November 17, 2005Date of Patent: September 21, 2010Assignee: Nikon CorporationInventors: Hirotake Nozaki, Nobuhiro Fujinawa
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Publication number: 20100195057Abstract: A projection system for displaying information which may include an electronic device and a projector connected to the electronic device. The electronic device and projector can be positioned on an article of clothing and/or an outdoor recreational product to project information therefrom. The article of clothing and/or outdoor recreational device may include a screen to enhance the projected information. The projector may be in connection with a power source.Type: ApplicationFiled: December 17, 2007Publication date: August 5, 2010Applicant: The North Face Apparel Corp.Inventors: Jeff Nash, Winston Shih
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Publication number: 20100141899Abstract: A projection apparatus includes a housing, a connector, a control module, and an optical module. The housing provides a battery chamber. An interface aperture is inside the battery chamber. The connector is disposed in the housing and provides a signal transmitting interface located in the interface aperture inside the battery chamber. The control module includes an error-detecting circuit and a microprocessor. The error-detecting circuit is electrically connected to the signal transmitting interface and the microprocessor, and the microprocessor is electrically connected to the signal transmitting interface through the error-detecting circuit. The optical module is disposed in the housing and electrically connected to the control module.Type: ApplicationFiled: December 2, 2009Publication date: June 10, 2010Applicant: Coretronic CorporationInventors: Wen-Chang Chien, Jui-Chi Chen
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Patent number: 7604355Abstract: Systems and methods are described employing a first lens array and a second lens array that are separated by one focal length that receives a plurality of colors signals from an X-prism and transmits to a condenser for overlapping lenslet images onto a display panel, such as a LCOS or LCD display panel. The first lens array includes a plurality of lenslets where each lenslet in the first lens array corresponds with each lenslet in a plurality of lenslets in the second lens array. The lenslets can be either refractive, defractive, or a combination of refractive and defractive.Type: GrantFiled: December 13, 2005Date of Patent: October 20, 2009Assignee: PhotonEdge Inc.Inventor: Song Peng
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Publication number: 20090244490Abstract: A mobile projector apparatus includes a light source, a modulation unit modulating light of the light source using a picture signal, a projection lens magnifying and projecting the modulated light of the light source, a battery supplying electric power to the light source, an acceleration measuring unit measuring an acceleration applied to the mobile projector apparatus, a usage state detecting unit detecting whether or not the mobile projector apparatus is in an unused state, and an extinguishing unit extinguishing the light source based on outputs of the acceleration measuring unit and the usage state detecting unit.Type: ApplicationFiled: March 26, 2009Publication date: October 1, 2009Applicant: SANYO ELECTRIC CO., LTD.Inventor: Hisashi Nakamura
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Patent number: 7575329Abstract: A compact and portable device uniformly illuminates and magnifies the words, images, or other information on a surface, such as the words on a page of a book, while minimizing the amount of light transmitted beyond or away from the illuminated surface. The device employs a light transmitting body formed of a transparent light conductive material and a magnifying lens. The device also employs a housing with a light source and a power source for powering the light source. To receive and deflect light from the light source onto the underlying surface, the light transmitting body is configured to have a wedge shape tapering from a thicker edge to a thinner edge. The wedge-shaped light transmitting body and the magnifying lens may be integrally formed to allow seamless transmission of light between the light transmitting body and the magnifying lens.Type: GrantFiled: December 19, 2005Date of Patent: August 18, 2009Assignee: LightWedge, LLCInventor: James F. Bennett, Jr.
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Patent number: 7543941Abstract: An apparatus is comprised of a light source radiating into a peripheral forward solid angle and a center forward solid angle. A reflector is positioned to reflect light from the light source from the peripheral forward solid angle into a longitudinal beam about an optical axis of the reflector. A lens is disposed longitudinally forward of the light source for focusing light into a predetermined beam pattern from the center forward solid angle into a skewed beam in a skewed direction with respect to the optical axis of the reflector to project a composite beam of light comprised of the light radiated in the skewed beam and the longitudinal beam.Type: GrantFiled: December 16, 2005Date of Patent: June 9, 2009Assignee: Cooper Technologies CompanyInventors: Ronald G. Holder, Greg Rhoads
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Patent number: 7517088Abstract: A light projector, including an elongate housing assembly and a tubular light chamber assembly that comprises a plurality of tubular components and is coaxially enclosed by the housing assembly, with optical devices positioned within the light chamber assembly.Type: GrantFiled: November 28, 2005Date of Patent: April 14, 2009Inventors: Thomas E. Kretzschmar, John T. Petrick, Richard A. Wolfe
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Patent number: 7497578Abstract: 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: GrantFiled: April 28, 2005Date of Patent: March 3, 2009Assignee: Symbol Technologies, Inc.Inventor: Frederick F. Wood
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Publication number: 20090027620Abstract: A portable multimedia projection device is provided for showing the multimedia information for a plurality of audiences and promoting the sharing quality of the multimedia information. The portable multimedia projection device includes a data storage unit, an image projecting unit, a control circuit, and an independent power. The data storage unit is disposed to store a multimedia data, the image projecting unit is electrically connected to the data storage unit, and disposed to project the multimedia data, the control circuit is electrically connected to the data storage unit and the image projecting unit and disposed to control the operating, transmitting, and broadcasting of the multimedia data, and the independent power is disposed to provide the electric power the portable multimedia projection device needs to operate.Type: ApplicationFiled: November 5, 2007Publication date: January 29, 2009Applicant: MUSTEK TECHNOLOGY CO. LTD.Inventors: Ching-Hua LIN, Wen-Hsing CHANG
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Patent number: 7287862Abstract: 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 to be illuminated to produce an image of high resolution of VGA quality in monochrome, color or gray scale. Edge-emitting light emitting diodes are employed, together with mutually orthogonal cylindrical lenses, to render the module with a short, slim form factor.Type: GrantFiled: February 18, 2005Date of Patent: October 30, 2007Assignee: Symbol Technologies, Inc.Inventor: Dmitriy Yavid
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Patent number: 7077525Abstract: A flashlight that utilizes an array of one or more light-emitting diodes (LEDs) as a light source, and a light pipe as a light homogenizer to generate a light beam capable of forming a uniformized light distribution at a given distance from the flashlight is disclosed. The LEDs may be all the same color, or some or all may be different colors. A switch, coupled to switching electronics coupled to the LED array, is used to change the state of the LED array to create a variety of different types of light beams, each of which provides relatively uniform and bright illumination at a given distance from the flashlight, wherein the given distance is selectable by adjusting an adjustable imaging lens.Type: GrantFiled: March 5, 2004Date of Patent: July 18, 2006Assignee: Optics 1, IncInventors: Robert E. Fischer, Greg Moeller, Simon Prince
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Patent number: 6939009Abstract: A compact work light that generates a light beam having high brightness and high illumination uniformity is disclosed. The work light includes a housing that houses a light source, a light homogenizer and an imaging lens in an operational relationship. The housing is attached to an adjustable mount, which can be attached to a fixed region such as wall, or to a movable support member such as a lamp base. The light source generates light that is uniformized by the light homogenizer. The homogenized light is then imaged by the imaging lens as a highly uniform, bright beam spot having a sharp boundary. The beam spot is formed at a selectable distance from the work light by varying the imaging lens and/or the adjustable mount. The work light is useful for a variety of industrial, professional and personal applications, including but not limited to a reading light, a dentist light, a head lamp, a head light and an optical projector.Type: GrantFiled: July 1, 2004Date of Patent: September 6, 2005Assignee: Optics 1, Inc.Inventors: Robert E. Fischer, Joseph E. Gortych
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Patent number: 6921170Abstract: A small-scale communication and/or data processing apparatus with an indicating device, integrated in the apparatus, which has an image projector.Type: GrantFiled: August 23, 2000Date of Patent: July 26, 2005Assignee: Siemens AktiengesellschaftInventor: Peter Nevermann
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Patent number: 6746124Abstract: A flashlight that generates a flashlight beam to illuminate an object at a selectable distance from the flashlight by imaging a uniformly bright pattern of light onto the object. A light modifying component can be used to manipulate the pattern of light into particular shapes and images. In one embodiment, light from a light source is coupled into a light pipe. The light is homogenized as it travels along the light pipe. The light exits the light pipe with a more uniform intensity than when it entered. The light exiting the light pipe is then reimaged by an imaging lens onto an object. Yet in other embodiments, one or more lens arrays having two or more lenlets are used to homogenize the light originating from the light source.Type: GrantFiled: February 5, 2002Date of Patent: June 8, 2004Inventors: Robert E. Fischer, David Kappel, Greg Moeller
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Patent number: 6623124Abstract: To provide a projection type illuminating device which can clearly form a silhouette, a projected figure or the like at a projecting position by a lighted electric lamp, and is safely used without damaging an eye even when the light accidentally enters the eye of a person.Type: GrantFiled: February 20, 2001Date of Patent: September 23, 2003Assignee: Hal CorporationInventor: Mitsuyoshi Okura
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Publication number: 20020118344Abstract: A method and architecture for homogenizing light generated from a flashlight to produce a uniform pattern of light for projection onto an object. The pattern of light is uniform in brightness. Some embodiments produce a pattern of light with a very sharp edge defining the shape of the pattern. A light modifying component can be used to manipulate the pattern of light into particular shapes and images. In one embodiment, a flashlight light source projects light into a light pipe. The light is homogenized as it travels along the light pipe. The light exits the light pipe with a more uniform intensity than when it entered. The light exiting the light pipe is then reimaged by a lens onto an object. Yet in other embodiments, one or more lens arrays having two or more lenlets are used to homoginze the light originating from the light source.Type: ApplicationFiled: February 5, 2002Publication date: August 29, 2002Inventors: Robert E. Fischer, David Kappel, Greg Moeller
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Patent number: 6431732Abstract: A laser flashlight employs a laser emitter disposed within a housing for emitting a coherent light along an optical axis toward the light emitting end of the housing. A power supply selectively applies electricity from a battery pack disposed within the housing to the laser emitter. An optical system disposed within the housing intermediate the laser emitter and the light emitting end of the housing includes a laser element pumped by the laser emitter, a frequency/wavelength converter, and a resonator, to form the coherent light into a laser beam. A beam expander receives the laser beam, disperses the laser beam, and transmits the dispersed laser beam from the light emitting end of the housing into the ambient environment. The dispersion of the laser beam is such that the laser beam is safe for the human eye at the light emitting end of the housing.Type: GrantFiled: November 7, 2000Date of Patent: August 13, 2002Assignee: LE Systems Inc.Inventors: David C. Brown, Richard J. Nelson, Titus A. Casazza, Jay Kehoe
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Publication number: 20020089650Abstract: A portable slide projector is provided for the portable projection of standard film slides. The projector has a housing of an overall size, shape and function of a flashlight. A rechargeable battery pack provides power to a lamp as controlled through a switch. A standard film slide of the common variety, is inserted into one of a series of aligned projection slots. The projection slots are supported by a linear carousel mechanism advances the aligned film slides into position to be projected.Type: ApplicationFiled: January 10, 2001Publication date: July 11, 2002Inventor: Barry Wendall Stewart
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Patent number: 6206524Abstract: A low cost and yet versatile shadowgraph is described. The shadowgraph has two components, a transparency holder and a point light source with its mounting and energizing structure. The transparency holder is itself transparent and acts as a backing for a transparency whose shadow is to be formed. The point light source is provided by a flashlight bulb and it is mounted on a slidable collar which is, in turn, mounted on a linear post to enable the position of such light to be adjusted along one axis laterally of the projection surface. Movement of the light source along other axes is naturally done manually so as to minimize the expense associated with manufacturing the shadowgraph.Type: GrantFiled: March 1, 1999Date of Patent: March 27, 2001Inventor: Daniel Jacob
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Patent number: 6142650Abstract: A laser flashlight employs a laser emitter disposed within a housing for emitting a coherent light along an optical axis toward the light emitting end of the housing. A power supply selectively applies electricity from a battery pack disposed within the housing to the laser emitter. An optical system disposed within the housing intermediate the laser emitter and the light emitting end of the housing includes a laser element pumped by the laser emitter, a frequency/wavelength converter, and a resonator, to form the coherent light into a laser beam. A beam expander receives the laser beam, disperses the laser beam, and transmits the dispersed laser beam from the light emitting end of the housing into the ambient environment. The dispersion of the laser beam is such that the laser beam is safe for the human eye at the light emitting end of the housing.Type: GrantFiled: July 7, 1998Date of Patent: November 7, 2000Inventors: David C. Brown, Richard J. Nelson, Titus A. Casazza, Jay Kohoe
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Patent number: 6000813Abstract: A portable or stationary light shaping system which can shape a variety of light sources via a series of selectable & moving output specific light shaping optical elements which produces a controlled and precise composite illumination of optical outputs.Type: GrantFiled: August 21, 1997Date of Patent: December 14, 1999Inventor: Mark Howard Krietzman
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Patent number: 5926867Abstract: A device for producing a moving target on the surface of the water in a toilet bowl. The target is an illuminated pattern, words or design visible in all light conditions and emanating form a housing mounted onto the toilet itself or a wall or ceiling above the toilet. The target may change position continuously or discontinuously.Type: GrantFiled: November 21, 1997Date of Patent: July 27, 1999Inventor: Craig Buchanan
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Patent number: 5526076Abstract: A hand-held light projector adapted to create on a remote display screen a light show presenting Lissajous figures whose patterns depend on how the projector is shaken by the operator. The projector includes a light bulb whose rays are focused to form a light beam that is directed onto a first spring-mounted mirror that when the projector is shaken, then oscillates about a horizontal axis, the beam deflected by the first mirror being cast on a second spring-mounted mirror that oscillates about a vertical axis. The beam deflected by the second mirror is cast on and scans the remote screen to produce a light trace thereon whose path is the resultant of the concurrent oscillations of the two mirrors to create on the screen Lissajous figures whose patterns depend on the frequencies and amplitudes of the oscillations.Type: GrantFiled: June 15, 1995Date of Patent: June 11, 1996Inventor: Brian Walker
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Patent number: 5450148Abstract: 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: GrantFiled: April 18, 1994Date of Patent: September 12, 1995Assignees: Yu S. Lin, Ray-Ing Ni, Fang-Ing Lin, Wei-Chang W. LiauhInventors: Lin Y. Shu, Ray-Ing Ni
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Patent number: 5400514Abstract: Various devices are disclosed for projecting a beam of coherent collimated light at a surface for use as reference lines and planes. The devices are also useful for projecting tracings of light in any of various geometric patterns. The devices comprise a pointer unit containing a light source, such as a laser diode. The light source is mounted so as to undergo periodic reciprocating motion in least one dimension, as imparted by any of various possible mechanisms. Combinations of such motions in two dimensions allows production of an infinite variety of geometric tracings. The pointer unit can be detachably mounted perpendicularly to a rotatable shaft provided by a base portion, or used separately as a level or hand-held pointer.Type: GrantFiled: February 22, 1994Date of Patent: March 28, 1995Assignee: Economy Laser, Inc.Inventors: Gary J. Imbrie, Robert H. Niemeyer, III, M. Mark Walker
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Patent number: 5367349Abstract: An amusement projector including an elongated motion rod housing having an axis, a proximal end and an objective end; structure for connecting the proximal end of the elongated motion rod housing to a light source; a continuously rotatable motion rod having a first end and a second end, the continuously rotatable motion rod being connected to the motion rod housing substantially perpendicular to the axis of the motion rod housing; and a dynamic silhouette producing mask mounted on the motion rod.Type: GrantFiled: November 17, 1993Date of Patent: November 22, 1994Inventor: Robert Zeiler
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Patent number: RE36197Abstract: A hand-held light projector adapted to create on a remote display screen a light show presenting Lissajous figures whose patterns depend on how the projector is shaken by the operator. The projector includes a light bulb whose rays are focused to form a light beam that is directed onto a first spring-mounted mirror that when the projector is shaken, then oscillates about a horizontal axis, the beam deflected by the first mirror being cast on a second spring-mounted mirror that oscillates about a vertical axis. The beam deflected by the second mirror is cast on and scans the remote screen to produce a light trace thereon whose path is the resultant of the concurrent oscillations of the two mirrors to create on the screen Lissajous figures whose patterns depend on the frequencies and amplitudes of the oscillations.Type: GrantFiled: February 27, 1998Date of Patent: April 27, 1999Inventor: Brian Walker