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Motion picture camera with a built in color conversion filter
The present invention relates to a motion picture camera which includes a color conversion filter for adapting the tungsten type film to the daylight...
Selective image area control of x-ray film exposure density
A system for accurately determining the exposure density required for x-ray photography of a particular area of interest is provided. The light received from an...
Photographic material containing 3-anilino-5-pyrazolylalkylcarbonate or
3-Anilino-5-pyrazolyl alkylcarbonates and arylcarbonates are described for use in silver halide color photography as color coupler precursor compounds containing...
Photographic material containing 2-acyl-2-pyrazolin-5-on-couplers
2-Acyl-3-pyrazolin-5-one couplers are provided for use in color photography which upon color development form 2-pyrazolin-5-one couplers capable of coupling with...
Electronic photography system
A completely electronic system for recording and subsequently displaying still life pictures includes an optical-electronic transducer for generating electronic...
Lippmann film with reflective layer
A film for use in Lippmann photography is formed with a photosensitive emulsion on a transparent base and a separable reflective layer adhering to the emulsion....
Illumination light-source device for an endoscope or the like
A light source for an endoscope includes a lamp for providing conventional illumination, a cold mirror for condensing the conventional illumination onto a light...
Versatile light diffuser
A uniquely configured and constructed light diffuser device which is versatile in the sense that it is easily associated with various light sources ubiquitously...
Photographic silver halide emulsion containing 2-equivalent cyan coupler
Cyan couplers of the 2-equivalent type, useful in photography are described. These compounds are characterized in that they have at least one divalent group of...
Motion picture camera
A motion picture camera having a film transport mechanism driven by an electric motor having an electronic speed control circuit which may be controlled by the...
Photographic camera with built-in strobo flash light device
In a photographic camera provided with a built-in strobo flash light device, the distance from the strobo flash tube to the optical axis of the taking lens of...
Flash photographing device
In a flash photographing device which comprises a camera body and a flash gun adapted to be connected to the camera body during photography, there is provided a...
Electronic flash unit serving both as transmitter of a remote control
and flash unit for flash photography
In an electronic flash unit serving both as the transmitter of a remote control device and a flash unit for flash photography, there is provided a power source,...
Method of coating multi-layer graphic film
In a coating method for preparing a multi-layer material for use in the graphic arts or in X-ray photography in which a web of a polyester film support has...
Single lens reflex camera
A single lens reflex camera system includes multiple replaceable mirrors, each designed to accomplish a specified function for different conditions of photography.
Process for preparing p-benzoquinone diketals
P-Benzoquinone diketals of the formula ##STR1## wherein R is H, an alkyl group having from 1 to 4 carbon atoms or a halogen atom, preferably H, CH.sub.3, Cl...
Stopping device for bellows and close photography ring
A stopping device is provided for stopping at an optional predetermined position the stop of a phototaking lens which has been in the fully open position when...
Light-absorbing dye for use in photography
Dyes are described corresponding to the following formula for use as light-absorbing dyes in silver halide photographic material: ##STR1## wherein: Z...
Silver halide emulsion containing two equivalent type coupler for use in
This invention relates to a method for developing an exposed silver halide color photosensitive material which comprises conducting the development in the...
Photographic exposure setting device
Photographic exposure setting device comprising an exposure time setting unit and two units for indicating insufficient and excessive illumination intensity...
Camera cradle tilt mechanism
A camera cradle tilt mechanism for professional motion picture photography employs a flexible toothed belt having its ends fixed to an arcuate undersurface of...
Method and apparatus for making stereoscopic pictures
The invention relates generally to stereo photography and particularly to a simple method and apparatus which enables an unskilled individual to produce...
Image-receiving material for color diffusion transfer comprising PVA and
An image-receiving element for color diffusion transfer photography for use with a photographic element containing at least one silver halide emulsion layer...
Hot stamping machine with rotatable head
The present disclosure is directed to a hot stamping machine with a rotatable head for imprinting information on each individual frame of a roll of negatives or...
Exposure meter circuit of camera with matching network for flash device
The present invention relates to an exposure meter circuit of a camera with a matching network for a flash device with which camera auxiliary light photography...
1,3-Disulfonylcycloalkanes substituted in the 2-position with at least one hydrogen atom are employed as silver halide complexing agents in both conventional and...
Liquid developer for use in electrostatic photography and preparation of
Liquid developers for use in electrostatic photography in which toner particles comprising pigment and specific polymer mixes having a particle size of from 0.2...
Sound recording and reproducing system for sound motion picture
A sound recording and reproducing system comprising a motion picture camera in which there is a synchronization system for recording segments of sound from a...
Lens attachment for flash-light photographing
In an automatic flash camera having a lens with a rotatable focusing ring, a lens attachment coacts with the focusing ring to control the camera. In the...
Novel chemical compounds
The present invention relates to photography and, more particularly, to a novel spectrally (optically) sensitized radiation recording photographic element which...
Electrophotographic film, method of making the same and photoconductive
coating used therewith
An electrophotographic film which is not only capable of being utilized for the same purposes as conventional xerographic and electrofax members but it also...
Retro-focus type wide angle objective lens
A retrofocus type wide angle objective lens comprising a negative lens group N and a positive lens group P having a diaphragm therein arranged in this order from...
Wide angle fundus illumination and photography apparatus
A wide angle instrument for illuminating, observing and photographing the fundus of the eye is provided. The instrument has a focus tube containing spaced...
Flash light photographic system for camera
The present invention relates to the flash photographic system for camera which is characterized in that the system presents a safety device for preventing...
This invention relates to styrene polymers containing pendant aminoethanethiol moieties which are useful as complexing agents for silver ions and/or soluble...
Method of dispersing organic compounds useful in photography
A method for dispersing organic compounds which are substantially insoluble in water and are used in photographic materials, such as chemical sensitizers (except...
Diffusion transfer processing solutions with carboxymethyl hydroxyethyl
The present invention relates to photography and, more particularly, to diffusion transfer process photographic film units which comprise a photosensitive...
Lighting device for photograph or motion-picture photography
In a device for the front lighting of a subject around a camera lens comprising a reflector, the summit of the reflector is truncated and provided with an...
Infra red photography with silver halide films using infrared and
visible light exposures
A process for photographing infra red events onto silver halide film including the steps of focusing the infra red radiation directly onto the film to alter the...
Composite photography apparatus and method utilizing a polarizing beam
A special polarizing beam splitting unit is employed in a composite photography system which utilizes an autocollimating screen having the capability of...
Apparatus for retinal photography
Apparatus for retinal photography comprising an energy supply unit, a hand lens, a foot-operated control unit, and headgear comprising an indirect ophthalmoscope...
Exposure control system for flash photography
A flash photographic exposure control system for a camera having an electrically timed shutter is provided with an additional electronic or mechanical timing...
Apparatus for stereoscopic photography
Photographic apparatus employing a single color filter for use in conjunction with a camera to produce a decodable composite image of a scene, which image has a...
N-(lower alkyl sulfonyl-methyl sulfonyl)-piperazines
This application is directed to compounds of the formula ##STR1## wherein R.sup.1 is lower alkyl; R.sup.2 is hydrogen, lower alkyl or --CH.sub.2 ).sub.m...
Fogged, direct-positive silver halide emulsion containing a gallium
The present invention relates to photography and, more particularly, to a novel radiation recording photographic element which comprises a direct positive...
Electronic composite photography with color control
Improved electronic compositing procedures and apparatus are described, ed typically on the blue screen process and suitable for processing motion pictures of...
Electrical system having a photoelectric converter to be used in
An electrical system to be used for photographic purposes. The electrical system has an input circuit for providing a given input signal as well as an output...
An illumination system for photomicrography includes direction of the light for illumination of the object through a fiber optic, the exit end of which replaces...
Alkylsulfonyl methyl-substituted pyridine N-oxides
This invention is concerned with pyridine N-oxides substituted in the ortho and/or para position with an alkylsulfonylmethyl group which find utility in...
Exposure control system for flash photography
A photographic flash exposure control system for a camera associated with a flash device. In conformance with a preselected shutter interval, an effective...