Class 396/275 - With color filter

Subclass of Class 396 - Photography
Definition: Subject matter includes a filter in front of the photocell
No. of patents: 54
Last issue date: 02/08/2011

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Number	Title	Issue Date
7885535	Methods and systems for estimation of visible light amount in a light source Methods and systems for estimating the amount of visible light in a light source using an image sensor, e.g., such as an image sensor of the type commonly found in color video cameras. The methods and systems may be implemented to use information about the normalize...	02/08/2011
7881603	Dichroic aperture for electronic imaging device A dichroic filter that for use with an electronic imaging device, such as a camera. The dichroic filter is located in the main imaging lens, and may permit all light to pass through a first portion and be measured by a photosensor, while restricting at least some po...	02/01/2011
7720374	Camera module The present invention relates to a camera module, which comprises a packaged image sensor, an IR filter, a lens and a holder for holding these components and has a reduced overall size and height. A camera module according to the present invention comprises an image...	05/18/2010
7715706	Imaging apparatus, and method and program for controlling an imaging apparatus An imaging apparatus may include an infrared cutoff filter capable of being inserted into and extracted from an incident light path to an image sensing device, and may further include a first detecting unit configured to, when the infrared cutoff filter is off the i...	05/11/2010
7657173	Optical lens system of mobile camera An optical lens system of a mobile camera is provided. The lens optical system includes: an optical lens in which bilaterally symmetrical off-axis lens systems corresponding to the divided view angles are integrally formed and arranged in parallel on the same plane,...	02/02/2010
7349626	Imaging apparatus The imaging apparatus 1 comprises: a semiconductor imaging device 5 which converts incident light to an electrical signal; an optical filter 4 which is opposed to an incident surface of the semiconductor imaging device 5 and transmits lig...	03/25/2008
7340162	Infrared camera systems and methods Systems and methods provide infrared camera techniques that may improve image quality or infrared camera performance over a range of varying conditions. For example, in accordance with an embodiment of the present invention, a system is disclosed that transforms dat...	03/04/2008
7158323	Apparatus for switching optical low pass filters for use in optical instrument Disclosed is an optical filter switching apparatus used in an optical instrument for converting externally input image information into video image information and outputting the video image information. The apparatus comprises: an optical filter holding section hol...	01/02/2007
7075719	Optical filter and optical device provided with this optical filter Light emitted from a taking lens 20 enters a first birefringent plate 1a to be spatially divided along a first direction extending perpendicular to the direction in which the light advances to achieve two separate rays L10 and L20....	07/11/2006
6650474	Optical filter and optical device provided with this optical filter Light emitted from a taking lens 20 enters a first birefringent plate 1a to be spatially divided along a first direction extending perpendicular to the direction in which the light advances to achieve two separate rays L10 and L20. The vibrational planes ...	11/18/2003
6229569	Electronic camera An electronic camera comprises a casing in which a photographing section is accommodated; a rotating member mounted rotably to the casing; a plurality of light amount regulating members for regulating a light amount incident to the photographing section; ...	05/08/2001
6160581	Camera having adaptive object image display facility A camera includes an exposure part arranged to cause a film loaded on the camera to be exposed to light, an image sensor arranged to convert an object image into an electrical signal, a signal processing circuit arranged to carry out predetermined process...	12/12/2000
6052536	Camera In a camera wherein a lens cap is detachably attached there are provided first and second photometric sensors on a lens barrel and the camera main frame, respectively. It is detected in accordance with the photometric values by the first and second photom...	04/18/2000
6046863	Lens control apparatus, image pickup apparatus, and lens control method In a lens control apparatus, the performance does not deteriorate even if a filter is inserted and removed. Correction amounts of a focusing lens position which are necessary to eliminate an out-of-focus that is caused when, for example, a filter is inser...	04/04/2000
5978606	Photometric device and a light receiving section for use in a photometric device A photometric device is provided with a light receiving section including a diffusing member which has a spherical diffusing surface to diffuse incident light to provide a predetermined oblique incidence angle characteristics, and a plurality of light rec...	11/02/1999
5940635	Focus detection optical system in a single lens reflex camera Disclosed is a focus detection optical system of a single lens reflex camera wherein a quick return mirror directs a part of luminous flux incident through a photographic lens system towards an optical sensor unit to detect the focusing state of the photo...	08/17/1999
5740481	Exposure calculation device for camera An exposure calculation device for use in a camera is, provided with a light metering device for effecting light metering in each of plural areas divided in the object field and generating a light metering signal, containing information relating to the co...	04/14/1998
5592221	Photographic camera with rotatable filter assembly having interchangeable filter disks and charge-coupled surface sensor A photographic camera (1) includes a back part (8) attachment that houses a charge-coupled surface sensor (9) and an associated filter system (11 and 13-17). The filter system includes a plurality of filters (13-16) positioned on a carrier (11). A motor (...	01/07/1997
5500708	Focus detection device having infrared filter A focus detection device includes an infrared reduction filter positioned behind the field lens between, the field lens and any secondary imaging lenses. Preferably, the infrared reduction filter is positioned closely adjacent to the field lens, i.e., clo...	03/19/1996
5424798	Color temperature adjusting device A color temperature adjusting device for an auxiliary light source comprises a color temperature metering device for measuring a color temperature of an object field and a color temperature adjuster for adjusting a color temperature of the auxiliary light...	06/13/1995
5371567	Image sensing system An imaging sensing system includes a solid state image device composed of one chip and a controller for controlling the solid state image device. The solid state image device further includes an image sensor of a charge accumulation type for receiving lig...	12/06/1994
5263101	Optical scanner filter screen An optical scanner filter screen for use with an optical scanner, and method for use, comprising a colored optical filter or optical glass placed between the scanning mechanism of the optical scanner and the document to be scanned, for improving the accur...	11/16/1993
5260739	Camera This invention relates to a camera in which the color of a photographing light source is colorimetered to thereby obtain colorimetry information. This invention provides a camera of the above-described type in which provision is made for a sensor for meas...	11/09/1993
5227845	Copying apparatus An apparatus for performing a copying operation contains a photosensitive drum, a focusing optical system for directing reflected light from an original image onto the photosensitive drum, a lamp for lighting the original image, a light quantity sensor fo...	07/13/1993
5172146	Electronically controlled optical color correction system for a camera The present invention covers automatic and manual control of the color of light striking film in a camera by electrically manipulating the color purity of one or more optical color correction filter elements made of clear and dyed dichroic liquid crystals...	12/15/1992
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
4918470	Apparatus for controlling the color balance of a photographic image A selected one of two or more variable density color filters is automatically positioned in the optical axis of a taking lens of a photographic camera, if necessary, prior to an exposure in order to automatically effect a color balanced exposure of a phot...	04/17/1990
4912500	Single lens reflex camera For a single lens reflex camera in which an image bearing beam from the photographic objective is reflected by a movable mirror to the finder system, techniques are disclosed that the mirror is made half-reflective, and the transmitted light of the mirror...	03/27/1990
4746948	Focus detection device A focus detection device for a camera, especially for a single lens reflex camera is disclosed. The focus detection device provides a light measuring means for measuring the color temperature of light beams being incident thereinto and a correction means ...	05/24/1988
4728990	Method of controlling exposure in electrophotography Light passing through an exposure controlling device is made incident on a body which is photosensitive both within and outside a visible range. The method is so designed as to limit the spectroscopic radiation intensity both in a short and long wavelengt...	03/01/1988
4717929	Camera auto sensing system for ISO speed In order to make possible the automatic setting of the sensitivity of a film to be used in an exposure controlling system by a simplified structure manufacturable at a low cost, the camera auto sensing system for ISO speed comprises: a pair of switches re...	01/05/1988
4642413	Power generating optical filter A power generating optical filter specially tuned to (1) transmit at least portions of selected wavelengths of incident light and (2) generate electrical power from absorbed portions of selected wavelengths of incident light....	02/10/1987
4634255	Focus detection apparatus A focus detection apparatus has a field lens on or in a vicinity of an anticipated focal plane of an imaging lens and a refocusing optical system arranged behind the field lens to focus light beams transmitted through different areas in a pupil of the ima...	01/06/1987
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
4541704	Photographic camera with electronic image enhancement A photographic camera apparatus with electronic image enhancement operates to control the exposure of a photosensitive material to scene light received directly from a scene to be photographed in a manner whereby the photosensitive material is exposed to ...	09/17/1985
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
4474441	Method and apparatus for controlling exposure by selective use of blocking visible filter Method and apparatus for automatically controlling exposure of a photographic film by evaluating non-visible spectral scene light frequencies. Particularly for artificially lit scenes, an evaluation of predominantly infrared frequencies is preferred. In o...	10/02/1984
4428654	Method and apparatus for simultaneously evaluating different spectral frequencies from different scene zones A method and an apparatus are disclosed for controlling exposure whereby scene radiation is generally simultaneously evaluated from one zone of the scene in a spectrally different manner from another zone thereof so as to define the exposure in accordance...	01/31/1984
4358186	Method and apparatus for controlling exposure by selective use of blocking visible filter Method and apparatus for automatically controlling exposure of a photographic film by evaluating selected spectral scene light frequencies during certain ambient light portions of an exposure interval and evaluating scene light frequencies exclusive of vi...	11/09/1982
4351593	Method and apparatus for selective positioning of spectral filter during exposure control Method and apparatus usable for automatically controlling exposure of a photographic film by evaluating selected spectral scene light frequencies during certain ambient light portions of an exposure interval and evaluating additional spectral frequencies ...	09/28/1982

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Class 396/275 - With color filter