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"Transmission of documents via telephone wires is possible in principle, but the apparatus required is so expensive that it will never become a practical proposition."
Dennis Gabor, British physicist
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| Number | Title | Issue Date |
| 7880805 | Method of calculating ratio of visible light component and image pickup apparatus using same An image pickup apparatus in which color signals are generated and extracted from a picked-up image signal for a plurality of regions in a screen, a wavelength component ratio is detected and calculated based on the extracted color signals for each of the plurality ... | 02/01/2011 |
| 7855746 | Lens barrel, camera, and mobile information terminal A lens barrel including a plurality of lens groups; a plurality of lens retaining frames; a telescopic cylinder retained by a fixed base member and configured to retain a portion of the plurality of lens retaining frames inside of the telescopic cylinder; and a lens... | 12/21/2010 |
| 7852400 | Image pickup apparatus having a movably controllable neutral-density filter An image pickup apparatus which is capable of preventing light diffraction from being caused by a density step or a thickness step of a filter, thereby preventing degradation of resolution during still image shooting, and securing the dynamic range of exposure contr... | 12/14/2010 |
| 7800686 | Electronic camera having a light reduction device An electronic camera includes: a luminance detection device that detects a luminance of a photographic field; an image sensor that captures an image of a photographic subject; a light reduction device that changes over between reducing an amount of light from the ph... | 09/21/2010 |
| 7656455 | Image pickup device having improved precision An image pickup device is provided with an optical low pass filter capable of advancing into and retreating from between an optical system and a photoelectric conversion element array in accordance with a selected mode, wherein the optical low pass filter is advance... | 02/02/2010 |
| 7619680 | Vehicular imaging system with selective infrared filtering and supplemental illumination An imaging system for use in an exterior or interior of a vehicle comprises a camera having an image sensor with an associated optical path and viewing area and an infrared filter associated with the image sensor for automatically selectively attenuating infrared ra... | 11/17/2009 |
| 7423684 | Image pickup apparatus and image pickup system At least one exemplary embodiment is directed to an image pickup apparatus configured to switch between a color and a black & white photographing modes, which includes an image pickup optical system, an image pickup element that receives a light through the image pi... | 09/09/2008 |
| 7411625 | Auto focus lens system An auto focus lens for digital cameras comprises a coil base, a lens barrel, and an elastic component. The coil base which has a coil wounded around in a specific direction and which has an accommodation hole whose bottom is provided with a stopper. The surface of t... | 08/12/2008 |
| 7365791 | Image pickup apparatus having iris member and filter units An image pickup apparatus capable of preventing a decline of resolution of a still image while keeping a dynamic range of exposure control. The image pickup apparatus capable of photographing with changing over a moving image and a still image, includes an iris mech... | 04/29/2008 |
| 7330607 | Apparatus and method for controlling an auto-zooming operation of a mobile terminal An apparatus and method for controlling an auto-zooming operation of a mobile terminal. The apparatus and method for controlling an auto-zooming operation of a mobile terminal can automatically adjust the size of a target subject captured by an image capture device ... | 02/12/2008 |
| 7301577 | Digital camera with a collapsible lens barrel A digital camera can retain its optical performance and has a particularly slim closed status. The digital camera (1) includes two lens groups (51, 52) installed in a collapsible lens barrel (3a), a focus lens (44), and a CCD (4... | 11/27/2007 |
| 7236202 | Movement control system and method A movement control system useful for an apparatus comprising a movable member movable between two positions, a motor and a sensor device for producing an output value which changes during the movement of the movable member. The control system drives the motor in a f... | 06/26/2007 |
| 7193651 | Camera system, lens apparatus and camera A camera system has a camera with a photosensitive member that records optical images; and a lens apparatus removably mounted on the camera and forming an optical image with an image taking optical system including a focus lens. Focus control of the focus lens is ch... | 03/20/2007 |
| 7151570 | Imaging apparatus with interchangeable lens apparatus, the lens apparatus having a memory for storing optical performance data of the lens apparatus An optical apparatus including an imaging apparatus and a lens apparatus each having a communicating portion performing communications is disclosed. The optical apparatus is provided with: an imaging optical unit; a memory in which information of an optical performa... | 12/19/2006 |
| 7035021 | Lens apparatus A selection device which permits or prohibits serial communication is provided in a lens apparatus capable of performing serial communication to suppress the serial communication although a camera body can perform the serial communication. Thus, a safe operation of ... | 04/25/2006 |
| 6870566 | Image sensing system for sensing an image and converting the image into image signals with a controlled operating rate In an image sensing apparatus using an image sensing device, such as a CCD, to be used by connecting to an external device, such as a computer, an operating rate of the CCD is changed in accordance with a rate at which the computer receives image signals from the im... | 03/22/2005 |
| 6867810 | Lens device for a camera with a stepping motor drive optimized for speed and power saving A lens unit consists of a plurality of lens frames, a stepping motor, and a driving control unit. The plurality of lens frames for holding an imaging optical system lies in a lens barrel and moves over a stowage interval and a zoom interval. The stowage interval is ... | 03/15/2005 |
| 6817788 | Diaphragm device To aim at achieving reduction in size and weight of a diaphragm device provided with an optical filter insertable into and retractable from a light path, so that the diaphragm device can be easily installed into a lens tube of a CCTV camera. The diaphragm dev... | 11/16/2004 |
| 6734912 | TV lens system In a TV lens system including a TV lens apparatus and a control unit, CPUs of the TV lens apparatus and the control unit monitor intervals between received data in serial communication in a digital control mode. If the data transmission stops for a predetermined tim... | 05/11/2004 |
| 6714247 | Apparatus and method for inputting reflected light image of a target object An area image sensor outputs the difference between charges received by light-receiving cells arranged in an array pattern. A system controller generates a timing signal for generating a pulse or modulation signal. A control signal generator generates a control sign... | 03/30/2004 |
| 6580459 | Digital image sensing apparatus, image processing system, and digital image sensing method A digital camera is provided with an optical filter unit 43 which is movable in the slide direction SL in front of the CCD 41, and infrared light emitters 25 and 32 for emitting near-infrared light. The optical filter 43 has an infrared cut filter 45 for ... | 06/17/2003 |
| 5969761 | Image sensing device The image sensing device adapted to compose an appropriate single picture from a plurality of pictures of different exposures obtained from the same subject, wherein the camera operation is controlled using as a reference the signal of one of said plurali... | 10/19/1999 |
| 5434621 | Object tracking method for automatic zooming and the apparatus therefor An object tracking apparatus for an automatic zoom lens control in a video camera includes a memory for storing data for zoom track lines showing the relationship between the distance variation of a zoom lens and the distance variation of a focus lens whi... | 07/18/1995 |
| 5373320 | Surveillance system having a microchannel image intensifier tube A camera attachment converts a standard day-light video camera into a day/night-vision video camera. The attachment device has a threaded input and output to physically and optically interconnect an auto-iris lens to a video camera. The attachment device ... | 12/13/1994 |
| 5070407 | Filter changing mechanism for a video camera In a video camera using a silicon diode tube or a similar acting light sensitive solid state pickup element as a light image sensing device, a light control device which detects light in the visual spectrum and upon receipt of visual spectrum light operat... | 12/03/1991 |
| 5016091 | Automatic optical filter displacing circuit An automatic optical filter displacing circuit for optimizing the white balance of video cameras is disclosed which comprises a buffer means; a sample and holder means for producing average values of the buffered luminance signals and for carrying out a s... | 05/14/1991 |
| 5003399 | Camera with exchangeable lens device A video camera has a body with an imager therein for providing a video signal in response to the projection of a light image thereon by a selected exchangeable lens device removably mounted on the camera body, and first and second computers in the camera ... | 03/26/1991 |
| 4967281 | Camera with exchangeable lens device removably mounted on a camera body A camera has a main camera body containing a main microprocessor, and exchangeable lens devices interchangeably mountable on the camera body and each containing an auxiliary microprocessor storing information identifying the respective exchangeable lens d... | 10/30/1990 |
| 4771343 | Device for printing and for recording electrical image signals of photographic pictures A device for recording image signals of photographic pictures, wherein the photographic pictures on a negative film are converted to electrical image signals by a video camera and recorded in a recording medium such as a magnetic disc. This device for rec... | 09/13/1988 |
| 4642700 | Method of and apparatus for producing video signal associated with photographic image Video signals representative of photographic images which are stored in a plurality of substantially equally dimensioned frames in horizontal and vertical positions are produced by picking up the images. A first signal indicative of a horizontal/vertical ... | 02/10/1987 |
| 4472740 | Television camera system A television camera system using any television lens and camera in combination achieves automatic video control. The television camera actually used in the television camera system has an erasable memory having memorized therein optical and/or electrical ... | 09/18/1984 |
| 4067043 | Optical conversion method Disclosed is a method for converting an optical system, employing an electrooptic device in conjunction with a pair of crossed polarizing devices, between an activated mode and a deactivated mode. Embodiments in which the optical system is used as a neutr... | 01/03/1978 |
