Quotables
"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7561792 | Camera, aperture controlling method and apparatus, lens controlling method and apparatus, and edging amount controlling method and apparatus Maximum and minimum aperture sizes are regulated with regard to a diaphragm in order to secure predetermined optical capability in an optical unit which includes a taking lens and the diaphragm. In a normal taking, the diaphragm is used within a normal taking range ... | 07/14/2009 |
| 7148920 | Solid state image pickup device capable of distinguishing between light sources and image pickup apparatus using such solid state image pickup device There are photographing scenes which are difficult, for a conventional image pickup apparatus having a solid state image pickup device with primary color filters, to correctly judge whether an illumination light source is the sun or a fluorescent lamp. The solid ima... | 12/12/2006 |
| 7145597 | Method and apparatus for image processing The image processing method and apparatus capture image data of a photographing scene in which a subject is photographed with a camera, as well as, capture camera information acquired or input in the camera when the subject is photographed, further optionally obtain... | 12/05/2006 |
| 6926013 | Apparatus and methods for shielding high-pressure fluid devices A high-pressure device has a drill stem (242) with a drill head (244) delivering a high-pressure fluid jet. A shield (246) is movably coupled to the device, wherein the drill head (244) is at least partially enclosed by the shield (246... | 08/09/2005 |
| 6597866 | Camera for taking a picture in a good focus condition A camera uses a program shutter as a shutter device. When an exposure value becomes larger than EV9, a stop of the camera is closed down so as to increase an f-number. In a case that the camera is loaded with a photographic film having film sensitivity of... | 07/22/2003 |
| 6389232 | Method and apparatus for controlling exposure of camera An exposure control method and apparatus for a camera having a two-area divided brightness measurement system. A central light value is determined based on a central area brightness of a photographic scene, and a peripheral light value is determined based... | 05/14/2002 |
| 6314243 | Electronic flash light-emission controlling method and apparatus and camera In a camera with a shutter that also works as a diaphragm and adjusts an aperture of a lens and a shutter speed by controlling an opening shape, a first opening value for obtaining a target exposure is found according to a subject distance, a guide number... | 11/06/2001 |
| 6108496 | Exposure control system for camera An exposure control system for a camera, which is provided with a strobe, includes a photometry system that measures brightness of an object; an exposure parameter determining system that determines exposure parameters in accordance with the brightness de... | 08/22/2000 |
| 6101333 | Method and apparatus for acquiring electronic and/or photographic images A method and apparatus are disclosed whereby generally matched exposures for at least first and second photoresponsive materials generally concurrently can be obtained, wherein the first photoresponsive material is more photoresponsive than the second.... | 08/08/2000 |
| 5953545 | Exposure controlling device for camera An exposure controlling device comprises, a controlling unit that controls, at the time of an exposure, the DC motor to rotate forward to open the shutter blades and then to rotate reversely to close the shutter blades, a calculating unit that calculates ... | 09/14/1999 |
| 5881326 | Shutter apparatus and camera apparatus A shutter apparatus is provided wherein openings for defining a secondary aperture are formed in respective shutter blades, such that an amount of light transmitted through the secondary aperture is detected, and the drive force for driving the shutter bl... | 03/09/1999 |
| 5799215 | Camera system A camera system comprises a brightness measuring circuit, a exposure line choosing circuit, an operable switch, a film driver and a film driving mode selector. The brightness measuring circuit measures brightness of a photographic scene to send a brightne... | 08/25/1998 |
| 5396310 | Camera A camera includes a light measuring circuit for performing measurement of a luminance of a subject, a computing circuit for performing a computation on an aperture value and/or a shutter speed by using a result of the measurement performed by the light me... | 03/07/1995 |
| 5134434 | Photographic camera A photographic camera for use with a detachable IC card, including circuitry for detecting a data relating to a characteristic of a color of light source which illuminates an object to be photographed and a memory for storing the data detected by said det... | 07/28/1992 |
| 5128708 | Light source discriminating device for a camera A light source discriminating device for use with an image taking apparatus, e.g. a photographic camera, judges whether a bright line having a particular wavelength exists in the light source illuminating a scene to be taken, in order to judge whether the... | 07/07/1992 |
| 5087936 | Camera A filter is provided which can pass therethrough only a signal component having a frequency corresponding to a secondary higher harmonic frequency component (200-240 Hz) of the fluorescent light of the output signal from a light-receiving element for rece... | 02/11/1992 |
| 5051769 | Flash system An aperture value determining apparatus in taking photographs with flash light in accordance with the present invention receives a full open aperture value of a taking lens employed, information in association with object distance, information in associat... | 09/24/1991 |
| 4941011 | Single integrator system with dual photocells An exposure control circuit for a photographic apparatus that senses visible and infrared scene light with separate light sensing photodiodes employs a single integrator and a separate capacitor for the storage of each scene light integration to sequentia... | 07/10/1990 |
| 4779115 | Exposure control device for a camera An exposure control device for flash photography having a first program mode wherein an exposure time is fixed at the flash synchronizable shutter speed and a diaphragm aperture value is changed at a high brightness region according to the brightness of a... | 10/18/1988 |
| 4771309 | Strobe control circuit for flash photography A strobo control circuit for a program shutter which opens or closes sectors by means of a stepping motor, wherein a data ROM (read-only memory) is accessed in accordance with a value obtained by computing a code representative of a distance to a subject,... | 09/13/1988 |
| 4730202 | Camera The present invention relates to the improvement of an exposure control means in a camera having a centralized control system that has a built-in control circuit such as a microprocessor etc. and employing a shutter wherein an optimum exposure is obtained... | 03/08/1988 |
| 4653893 | Camera exposure calculating device An exposure calculating device, for use in a camera having a programmed exposure control mode which automatically calculates a shutter speed and a diaphragm aperture value in a programmed manner, is further capable of modifying the combination of calculat... | 03/31/1987 |
| 4630917 | Exposure control device of a camera A camera in which the exposure of a film is controlled includes means for making a digital signal, converting means for converting the digital signal from the making means into an analog signal and putting out the analog signal, means for detecting the br... | 12/23/1986 |
| 4550996 | Flash photography system A flash photography system using a first aperture value output calculated from a desired diaphragm aperture value for flash light photographing with data obtained from ambient light, film sensitivity and the exposure data, a second aperture value output i... | 11/05/1985 |
| 4542973 | Dynamically controlled scene radiation leakage for exposure control Method and exposure control apparatus are disclosed for generally simultaneously evaluating preselected different frequencies during a portion of the exposure cycle for controlling exposure. Included is an arrangement responsive to movement of the shutter... | 09/24/1985 |
| 4530585 | Automatic strobe apparatus An automatic strobe apparatus for use with a diaphragm-shutter of the type having a programmed mode of operation operates to automatically control the amount of light provided therefrom. The automatic strobe apparatus provides the maintained proportion of... | 07/23/1985 |
| 4514074 | Exposure control circuit for TTL automatic electronic flash An exposure control circuit associated with TTL automatic electronic flash includes a diaphragm control circuit. When the electronic flash is mounted on a TTL direct photometry camera capable of photometry of reflection from a film surface in order to tak... | 04/30/1985 |
| 4497562 | Exposure control device for flash photography An exposure control device for flash photography using a first program signal circuit 5 for generating signals representative of a shutter speed and a diaphragm aperture value for flash photography and which is determined in accordance with the output of ... | 02/05/1985 |
| 4496230 | Exposure control device for cameras A flash photography system for a camera which is adapted to be used with an electronic flash device which supplies a control signal when the device is a ready condition. The camera includes a diaphragm control circuit which automatically control the diaph... | 01/29/1985 |
| 4491406 | Method and apparatus employing dual photocells for removing spectral filter during strobe pulse Method and apparatus for automatically switching between alternate ones of a pair of light sensing photocells having different photoresponsive characteristics in an exposure control system usable with a photographic apparatus. Included in the system is a ... | 01/01/1985 |
| 4460263 | Apparatus for calculating and displaying and/or controlling exposure parameters for photographic pictures A camera control device (21) with means for electrically controlling the shutter of a camera and for setting and displaying exposure time and aperture is electrically connected to an electronic exposure computer (22). The latter contains electronic circui... | 07/17/1984 |
| 4444479 | Photographic system with slow burn flash bulb A photographic system for minimizing exposure tracking error under flash illumination using a low-cost camera in which an automatic shutter system constitutes the sole control of exposure illumination passed to the film. The source of flash illumination i... | 04/24/1984 |
| 4431286 | Photographic exposure control system having selectable ambient and flash modes A photographic exposure control system of the type embodying scanning shutter blade elements includes a control blade selectively actuatable in accordance with whether the photographic apparatus is utilized in an ambient or artificial scene-lighted mode o... | 02/14/1984 |
| 4371243 | Photographic mode selector system A camera detects which of a number of operating modes is dialed into a flash unit by sensing the current level produced by a source. In response to dialing of a daylight EE mode, the camera measures the brightness of the object to be photographed and conf... | 02/01/1983 |
| 4173400 | Photographic camera apparatus An automatic camera of the type having distinct ambient and flash exposure modes of operation is provided with a scene light detecting apparatus which provides an electrical output signal that is utilized to control exposure under both ambient and flash i... | 11/06/1979 |
| 4147418 | Photographic exposure control system with independent ambient and artificial illumination control modes An exposure control system of the type embodying scanning type shutter blades includes two separate sets of photocell sweep secondary apertures in the shutter blades together with a single photoresponsive element wherein each set of secondary apertures ma... | 04/03/1979 |
| 4130355 | Photographic camera with an automatic exposure control adapter unit detachably mounted thereon An automatic exposure control system permitting for a photographic camera to make an exposure in either of the shutter preselection automatic exposure range and the diaphragm preselection automatic exposure range is established by combination of an adapte... | 12/19/1978 |
| 4127325 | Automatic exposure control camera A self-adjusting electronic flash is attached to an interchangeable lens camera having a shutter-priority exposure control. For flash operation, aperture information suitable for electronic flash and the film sensitivity is automatically conveyed to the c... | 11/28/1978 |
| 4126872 | Aperture setting device for camera In the disclosed arrangement, an energy storage device such as a capacitor is discharged through a flash lamp. A sensing device produces a signal when the storage voltage is sufficient to fire the lamp. A switchover device normally permits the shutter and... | 11/21/1978 |
| 4104653 | Scanning shutter blade arrangement with ambient and flash ranges An exposure control for a camera of the type having scanning type shutter blade elements driven by a walking beam to provide a progressive variation in effective exposure and light sensing apertures. A control is provided so that in an artificial scene li... | 08/01/1978 |
