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Searching: photography





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Patent # Description
US-4,299,904 Photographic image enhancement method employing photoluminescence
A method of enhancing photographic images of low optical density is disclosed which includes use of a luminescent system, the components of which system include,...
US-4,299,463 Display device for camera
In the disclosed system, a camera of the type which manually presets a diaphragm aperture and particularly for a camera which operates with a computer flash...
US-4,298,262 Aperture device of a lens capable of close proximity flash photography
A lens includes a flash unit including a ring-shaped irradiating light source disposed around the lens barrel symmetrically about the optical axis, a diaphragm...
US-4,298,260 Apparatus for endoscopic photography
An apparatus for endoscopic photography includes a camera and a light source unit which may be coupled to an endoscope to permit a picture to be taken of the...
US-4,298,256 Exposure control device for camera
An automatic exposure control device for a camera capable of permitting flash photography includes an exposure computing portion for natural light photography...
US-4,297,434 Photodeformable article having photoionizable groups on a polymer backbone
The invention is directed to polymeric materials which undergo deformation upon exposure to actinic radiation. These polymeric materials contain at least one...
US-4,297,015 Camera automatic focus apparatus
A camera enables normal photographing where automatic focus adjustment and exposure operation are sequentially effected in response to a shutter release...
US-4,295,722 Camera for daylight and flash photography
A flash unit triggering arrangement that cooperates with a shutter control mechanism or circuit of a camera for permitting the firing of a flash lamp of the...
US-4,295,153 Stereoscopic apparatus and method of using same
A light weight, compact, stereoscopic apparatus in the form of a lens assembly that can be removably attached to a conventional still motion picture or...
US-4,295,050 Instrument for positioning an X-ray camera in dental X-ray photography
An instrument for use in odontologic X-ray photography comprises an elongated plate-like bite block extending at right angles to an X-ray film support and...
US-4,294,915 Silver halide developing agents
There are described novel compounds which include a silver halide developing function, a colorless ligand which is a radical of an iminodiacetic acid and a...
US-4,291,979 Device for measuring light under ambient light and/or flash light and a method therefor
A light measuring device for use in photography and a method therefor is disclosed, in which the quantity of light during a time interval when the flash light is...
US-4,291,967 Positive locking adjustable mount for camera and flash
The invention is an anatomically shaped hand grip assembly having a positive locking adjustment capability relative to a baseplate to which a camera may be...
US-4,291,961 Apparatus for endoscopic photography
An apparatus for endoscopic photography enables a picture to be taken of the interior of a coeliac cavity by coupling a camera and a light source unit with an...
US-4,291,944 Auxiliary cylinder for camera
An auxiliary lens holding cylinder has a main cylinder having a lens holder on one end and a camera mounting fixture on the other end and a sub-cylinder having a...
US-4,289,393 Camera supporting device for low angle or close-up photography
A camera supporting device for low angle or close-up photography in which a supporting member having a stay is attached to the lower end of the elevator of a...
US-4,288,517 Toner for electrostatic photography containing resin coated silica particles
A toner composition for electrostatic photography which comprises (A) toner powder comprising a base resin and a coloring agent and having an average particle...
US-4,286,845 Zoom lens barrel capable of close up photography
A zoom lens barrel which is capable of zoom and close up photography includes a generally cylindrical barrel part, one end of which is mountable to a camera...
US-4,285,588 Apparatus and method for minimizing red-eye in flash photography
Apparatus and method for minimizing a red-dot artifact in the eye of a flash photograph subject employs a subject conditioning pre-flash, predeterminedly...
US-4,285,585 Exposure control compensating means for close-up photography
In an automatic exposure control camera in which exposure is controlled based on an output of an arithmetic unit, the F-value information of the taking lens of...
US-4,284,337 Photographic apparatus
A photographic apparatus of the foldable type in which, when in preparation for photography, a front housing carrying a photographic objective lens system...
US-4,283,766 Automatic camera control for creating special effects in motion picture photography
An automated camera control drives a video or motion picture camera along multiple independent axes of movement to position the camera for recording an image of...
US-4,283,135 Close-up photography aid
A photography accessory for taking close-up photographs; the accessory including a base frame made from several arms pivoted together, a camera being mounted on...
US-4,277,559 Novel magenta-forming color couplers and their use in photography
Photographic color elements are described wherein one of the emulsion layers comprise a 4-phenylazo-2-pyrazolin-5-one coupler, the phenylazo group of which...
US-4,276,579 Photographic flash device
In a photographic exposure device of the type comprising a flash section comprising a flash tube which flashes by the energy charged on a main discharge...
US-4,275,954 Automatic focusing apparatus for camera
An automatic focusing apparatus in a camera is provided in which a winding operation for advancing the film and for charging the shutter does not cause the...
US-4,273,423 Zoom lens barrel assembly for constant magnification
A zoom lens barrel is constructed such that the axial movement and rotation of a single operation ring relative to a stationary barrel causes zooming and...
US-4,270,853 Sound-recording instant-printing film and camera therefor
Instant-printing film further comprises a magnetic sound-recording band on one end part thereof, and is installed in an instant-printing camera which has a...
US-4,268,593 Recording material for color photography
Recording material, for color photography, which contains at least one piperidine compound containing one or more alkyl-substituted phenol groups, as the light...
US-4,268,592 Material for color photography
Light-sensitive recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one magenta coupler of the...
US-4,268,591 Material for color photography
Light-sensitive recording material for color photography, which contains, in at least one silver halide emulsion layer, at least one yellow coupler of the...
US-4,268,157 Toner image transfer method and apparatus for electrostatic photography
A photoconductive drum is formed with a photoconductive dielectric layer for producing an electrostatic image and an endless transfer belt is formed with a...
US-4,268,152 Bulb photography control system for camera
A control system for a camera controls a shutter release operation electromagnetically. A signal generating circuit produces a switching signal for operating a...
US-4,268,147 Focal plane shutter device
A focal plane shutter device of the present invention is provided with leading blade braking means arranged near the terminal end of running down movement of the...
US-4,268,139 Camera for daylight and flash photography
A flash unit triggering arrangement that cooperates with a shutter control mechanism or circuit of a camera for permitting the firing of a flash lamp of the...
US-4,266,861 Eye fundus camera
An improved eye fundus camera for photographing the fundus of a patient's eye is disclosed. Three separate energy sources are provided which include a first...
US-4,264,698 Developer for electrostatic photography and process for preparation thereof
A developer for electrostatic photography consisting essentially of a dry blend of (A) substantially spherical fixing magneto-sensitive particles of a...
US-4,264,175 Focusing device in camera equipped with both standard and telephoto lenses
In a camera equipped with both a standard lens and a telephoto lens which may be arbitrarily selected for exposures by manipulating a first control knob, a...
US-4,264,168 Projection device, especially for photography, motion pictures and television
A housing which is adjustable for height and within which is placed an object to be projected onto a screen also contains a light source and a reflecting system,...
US-4,262,997 Exposure information indicating device
An exposure information indicating device for use in photography includes a detecting section for detecting various known information values such as brightness...
US-4,261,495 Bag construction
A shoulder bag such as a photography case adapted to be suspended from a shoulder of a bearer of the same is suspended by means of a strap engaging opposed pivot...
US-4,259,423 Means and method for color photography printing
A color photography printing process prints, a test print on the basis of color intensities of three color ranges transmitted through a small selected area of a...
US-4,256,995 Electronic pre-emission flash device
An electronic flash device capable of emitting a flash light of a regulated level over a considerable duration of time, prior to flash firing for emitting a...
US-4,255,510 Development restrainer precursors for photographic elements
Photographic elements, assemblages and processes for color diffusion transfer photography are described wherein certain azole compounds having at least two...
US-4,255,033 Universal focus multiplanar camera
Conventional cameras and other optical instruments produce images upon one plane only. Objects at differing ranges from the lens of such cameras cannot appear...
US-4,254,201 Pressure sensitive adhesive toner of clustered encapsulated porous particles for use in electrostatic photography
A pressure sensitive adhesive toner for use in electrostatic photography which consists essentially of porous aggregates. Each aggregate consists essentially of...
US-4,252,441 Arrangement for measuring exposure in photography with an electronic exposure meter and adapter
An arrangement for measuring exposure in which an adapter is attached to an electronic exposure meter. The adapter has at least three plugs mating with...
US-4,249,825 Method and apparatus suitable for ocular blood flow analysis
Glaucoma and other diseases may be detected by the analysis of angiograms to determine ocular blood flow. Using rapid sequence photography an ocular image is...
US-4,249,815 Camera with means for allowing photography under low light conditions
A standard camera with means for using non-imaging light for activating the film when taking pictures in low light conditions. The film activating means consists...
US-4,249,805 Composite photography system
A composite photography system of a registered matte type having foreground and background camera optical systems is provided. The respective images from each...
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