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"There is practically no chance communications space satellites will be used to provide better telephone, telegraph, television, or radio service inside the United States."
T. Craven, FCC Commissioner ; 1961
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| Number | Title | Issue Date |
| 7917026 | Shutter and camera module with same A shutter includes a first light-pervious electrode, a second light-pervious electrode, a light-shielding layer sandwiched between the first and second light-pervious electrodes and a voltage supplying system. The light-shielding layer is comprised of an electrostri... | 03/29/2011 |
| 6389235 | Camera having the capability to detect and display insufficient shutter speed A camera includes a shutter unit for limiting the exposure time to a record medium, a shutter time setting unit for setting the shutter time of the shutter unit, a shutter drive and control unit for driving and controlling the shutter unit, a shutter cond... | 05/14/2002 |
| 6325554 | Camera with electrostatic light valve that functions as image reflecting mirror for viewfinder A camera has an objective lens for forming an image of a subject by focusing rays of light on a film plane, and a mirror for a viewfinder which is movable in the way of the light rays between the objective lens and the film plane to reflect the light rays... | 12/04/2001 |
| 5600392 | Position sensor A position sensor for detecting a position by comparing a detected level with a threshold level. This operation is performed without being affected by the characteristics intrinsic to the used sensor means or by power supply variations. Furthermore, the o... | 02/04/1997 |
| 5315344 | Microscope camera Photographic apparatus having both automatic and manual modes of operation is adapted for coupling to a microscope. the apparatus includes a viewfinder for viewing a scene in the microscope and an exposure controlling photometer for measuring the scene br... | 05/24/1994 |
| 5247387 | Method and device for driving electro-optical light shutter A method and device for driving an electro-optical light shutter array including a plurality of shutter elements each having an electro-optical effect to polarize an incident light by setting up an electric field. The device includes a plurality of indivi... | 09/21/1993 |
| 4317623 | Memory used in automatic exposure control mechanism In a through-the-lens, single lens reflex camera wherein light reflected from an object to be photographed is intercepted when a quick-release mirror jumps up in response to the depression of a shutter button to one of a plurality of positions, a system f... | 03/02/1982 |
| 4306788 | Electromagnetically controlled shutter An electromagnetic actuating device for controlling the opening and closing operation of a shutter includes a plurality of plate-like permanent magnets and yokes alternating in layers to form a plurality of magnetic paths, and a moving coil arranged to be... | 12/22/1981 |
| 4297018 | Printed circuit unit for a camera A printed circuit unit for a camera, comprising a photo-sensing means to measure brightness of an object, an integrated exposure operation circuit means to conduct exposure operation based on the photo-sensing output from said photo-sensing means and other exp... | 10/27/1981 |
