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| Number | Title | Issue Date |
| 7510289 | Light emitting diode and light emitting control system using same A light emitting diode comprises light-emitting elements inside a cup structure and a lens part that condenses the light from these elements. Light-emitting element placed at the center along the optical axis of the lens emits an outgoing beam of light with a narrow... | 03/31/2009 |
| 7372210 | Method and apparatus for lamp heat control A lamp drive circuit includes an electronic switch in series with the lamp and a source of DC voltage, a control input of the switch being pulse-width-modulated by a control circuit which includes a temperature-sensing circuit for reducing the pulse-width-modulation... | 05/13/2008 |
| 7332870 | Driving voltage controller for light-emitting source An initial driving voltage fixing a desired luminance of a light-emitting source is set at a voltage lower than that of a power supply; the light-emitting source is driven by applying a light-emitting source driving voltage at the initial driving voltage; and then, ... | 02/19/2008 |
| 7303308 | Lighting apparatus Lighting apparatus for an image-gathering device, includes a light frame supporting a plurality of light emitting diode lamps configured to emit light at a tungsten balanced colour temperature, and a focussing frame comprising a plurality of light focussing lenses c... | 12/04/2007 |
| 7248795 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus Image projection apparatus wherein, a focusing lens is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit is supplied to an auto focusing detection circuit, may become maximum. A ... | 07/24/2007 |
| 7035536 | Flash control mechanism A flash case, in which a flash is provided, is automatically moved to an up position, when a user selects a flash mode in a state where the flash case is at a down position, when a user begins to forcibly raise the flash case by hand in a state where the flash case ... | 04/25/2006 |
| 7012354 | Method and structure for a pusher-mode piezoelectrically actuated liquid metal switch A method and structure for an electrical switch. According to the structure of the present invention, a liquid-filled chamber is housed within a solid material. A plurality of switch contacts within the liquid-filled chamber are coupled to the solid material, while ... | 03/14/2006 |
| 6993255 | Method and apparatus for providing adaptive illumination An illumination system (20, 72, 110, 142) for illuminating a scene comprising: an illuminator (24, 74, 116) having a plurality of substantially contiguous independently controllable light (26, 76) providing regions each of which provides light t... | 01/31/2006 |
| 6973263 | Image projection apparatus, projection image pattern, laser drive apparatus, camera apparatus Image protection apparatus wherein, a focusing lens is controlled when a shutter is operated so that a contrast signal, obtained when a luminance signal from a camera signal processing circuit is supplied to an auto focusing detection circuit, may become maximum. A ... | 12/06/2005 |
| 6945666 | Illumination device with removable power pack A portable, cable free, industrial troubleshooting stroboscope includes a housing having a light source, a control circuitry, a display and a user control mechanism. A pair of power terminals internal to the housing connect to a removable power pack. One or more eas... | 09/20/2005 |
| 6925223 | Pressure actuated optical latching relay A pressure actuated optical relay containing a transparent mirror housing, located at the intersection of two optical paths. A liquid metal slug is moved within a channel passing through the transparent mirror housing by the action of pressure exerted by an actuatio... | 08/02/2005 |
| 6909236 | Method for automatically controlling lighting devices and device for carrying out the method In a method for the automatic control of lighting devices, particularly of a motor vehicle, and a device for implementing the method, the brightness in a specific direction being detected by at least one directional sensor which emits direction signals to a control ... | 06/21/2005 |
| 6903493 | Inserting-finger liquid metal relay An electrical relay comprising having two wettable electrical contacts supporting a conducting liquid. A non-wettable switch finger is moved between first and second positions between the electrical contacts by action of an actuator. In the first position the switch... | 06/07/2005 |
| 6903490 | Longitudinal mode optical latching relay A piezoelectric optical relay array having one or more array elements. Each array element contains a transparent mirror housing, located at the intersection of two optical paths. A liquid metal slug is moved within a channel passing through the transparent mirror ho... | 06/07/2005 |
| 6172598 | Vehicle motion indicator A vehicle motion indicator having a base; a shaft rotatably attached to the base; at least one winder having a hub attached to the shaft; a motor for rotating the shaft to rotate the winder; and switch means responsive to the brake system in the vehicle, ... | 01/09/2001 |
| 5994844 | Video lighthead with dimmer control and stabilized intensity A video lighthead mountable to a video camera and having a dimmer control that varies the intensity of the light output from the lighthead using pulse width modulation techniques. A photo sensor measures the intensity of light reflected from a subject in ... | 11/30/1999 |
| 5835794 | Electronic flash module The disclosure is concerned with an electronic flash module comprising a plurality of flash subunits to illuminate a photographed scene in flash photography. Each flash subunit comprises a flash-tube and associated charging and triggering circuits; a mode... | 11/10/1998 |
| 5471370 | Strobe control apparatus of camera A strobe control apparatus for a strobe-incorporated camera. A light emitter is supported in a camera body by a supporting mechanism so as to move between a retracted position and an operative position. A drive mechanism moves the light emitter between th... | 11/28/1995 |
| 5394063 | Video light apparatus A reed switch is provided between a video camera and a battery pack circuit section. A current flowing when the video camera operates is detected by the reed switch. A video light is turned on or off on the basis of the detected current value. When the po... | 02/28/1995 |
| 5191369 | Photographing light quantity controller for endoscope A photographing light quantity controller for an endoscope, which is used to control the quantity of illuminating light when a photograph is to be taken through the endoscope. The photographing light quantity controller comprises a device for supplying li... | 03/02/1993 |
| 5115261 | Photographing light quantity controller for endoscope A photographing light quantity controller for an endoscope, which is used to control the quantity of illuminating light when a photograph is to taken through the endoscope. The controller includes a device for photoelectrically converting a brightness lev... | 05/19/1992 |
| 5012392 | Automatic battery powered video light An automatic battery powered video light (10) is supplied power by a d.c. battery (16). A light (20) is connected between a first terminal of the battery (16) and a MOSFET switch (46), which is connected to a second terminal of the battery (16). A control... | 04/30/1991 |
| 4959755 | Automatic battery powered video light An automatic battery powered video light (10) is supplied power by a d.c. battery (16). A light (20) is connected between a first terminal of the battery (16) and a MOSFET switch (46), which is connected to a second terminal of the battery (16). A control... | 09/25/1990 |
| 4666280 | Flash shot control device for camera A flash shot control device for a camera in which the angle of flash lighting is controlled in accordance with the output of a backlight detector. On assumption that a subject of principal photographic interest takes its place at the center of the field o... | 05/19/1987 |
| 4450506 | Automatic light-quantity-control speed light An automatic light-quantity-control speed light which is capable of operating in a direct or an indirect illumination mode incorporates a device for indicating, prior to an exposure, whether or not light quantity control is possible in the direct illumina... | 05/22/1984 |
| 4435156 | Subminiature array with normally closed and normally open switches A miniaturized multilamp photoflash array having a plurality of flashlamps affixed to a printed circuit on the inner surface of a circuit board with a continuous strip of switching material forming a plurality of normally closed (N/C) switches coupling th... | 03/06/1984 |
| 4382666 | Indicating device for computer type electronic flash apparatus An indicating device of computer type electronic flash apparatus has a plurality of display members representing respective limited distance ranges for correct exposure of an object to be photographed. Each of the display members corresponds to a respecti... | 05/10/1983 |
| 4366529 | Optical source unit for an endoscope An illumination device for photographing a portion of the body cavity to be examined with an endoscope having a light source using a discharge tube circuit for illuminating the portion to be examined and a mechanical shutter arranged in the optical path o... | 12/28/1982 |
| 4336570 | Radiation switch for photoflash unit A photoflash unit having a plurality of flashlamps mounted on a printed circuit board containing circuitry for sequentially igniting the flashlamps in response to successive firing pulses applied thereto. The circuitry includes a plurality of solid-state ... | 06/22/1982 |
| 4330821 | Radiation switch for photoflash unit A photoflash unit having a plurality of flashlamps mounted in a planar array on a printed circuit board containing circuitry for sequentially igniting the flashlamps in response to successive firing pulses applied thereto. The circuitry includes a plurali... | 05/18/1982 |
| 4298907 | Flash attachment with extendable head A flash attachment for a hand held camera having a flash head pivotally mounted on an extendable member. A main unit together with a plurality of modular auxiliary units which may be used to construct the attachment are shown. One embodiment shows a plura... | 11/03/1981 |
| 4268141 | Photo-detection adapter for an automatic flash device A photo-detection adapter for an automatic strobe comprising a mounting means attachable to a barrel of a photographic lens, an external photo-detection part supported by the mounting means so as to change a detection direction for properly receiving a re... | 05/19/1981 |
| 4205907 | Calculator for electronic flash A calculator device for an electronic photoflash system in which a photosensor receives light reflected back from the scene being photographed and generates an electrical signal for providing termination of the flash upon sensing a predetermined amount of... | 06/03/1980 |
| 4190880 | Photographic flash device A photographic flash device comprising a first mechanism for varying the angle of divergence of a flashed light and a second mechanism for varying the direction of the flashed light. The first variable mechanism is provided with a first body having a ligh... | 02/26/1980 |
| 4171572 | Light control apparatus for a dental handpiece An apparatus for controlling the actuation of a light for illuminating the work zone adjacent the operative end of a dental handpiece. The apparatus includes (a) switch for actuating a light source when a signal is transmitted to the actuating switch from... | 10/23/1979 |
| 4133631 | Photoflash lamp array circuit board having radiation sensitive fuse elements Fuse elements are used with a circuit board to provide more reliable sequential firing in a flash lamp array. The circuit board includes the lamp firing circuitry along with radiation switches connected in said circuitry and the fuse elements cooperate wi... | 01/09/1979 |
| 4107706 | Camera apparatus An exchangeable lens barrel for use in a photographic camera is provided with a light sensitive element which, when the exchangeable lens barrel has been exactly fitted to the camera, receives the light which is reflected from the light sensitive film sur... | 08/15/1978 |
| 4100590 | Scene-brightness-dependent control of flashbulb flash duration An apparatus is described for effecting scene-brightness-dependent control of the duration of the flash produced by a flashbulb flash unit having at least one flashbulb. The apparatus includes a housing so configured and dimensioned that it can be pushed ... | 07/11/1978 |
| 4078240 | Photographic flash device An automatic photographic flash device wherein the amount of light of the flash tube is automatically controlled in response to intensity of light from the direction of the photographic object by means of an electric circuit A flash tube part is movably i... | 03/07/1978 |
| 4064431 | Last-flash indicator for photoflash array A multiple lamp photoflash array of the FlipFlash type having flash-sequencing circuitry for causing the lamps to flash one at a time in response to firing pulses applied to the array. A radiation switch associated with the last lamp to be flashed causes ... | 12/20/1977 |
