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Document Title |
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4895769 |
Method for preparing light polarizer
A stainable polymeric sheet material adapted to the production of a light polarizer therefrom is provided by a method, according to which, a support sheet of amorphous polymeric material is...
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4427748 |
Planar battery comprising a terminal plate having gas venting orifice covered with a layer of gas permeable material
A relatively thin, flat or planar battery is disclosed which includes one or more cells in series relationship each comprising a planar anode in superposed relationship with a planar cathode and a...
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4424326 |
Copolymeric mordants
Copolymeric mordant materials containing recurring units according to the following formula are disclosed: ##STR1## In such copolymers, each of R 1 , R 2 and R 3 can independently be alkyl;...
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4366235 |
Photosensitive element and method of preparing same
A photosensitive element comprising a support carrying photosensitive silver halide grains in a substantially predetermined spaced array and methods for forming such photosensitive elements.
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4352874 |
Method for forming a photosensitive silver halide element
A fine-grain emulsion in a plurality of predetermined spaced depressions is coalesced to form, in situ, a plurality of single effective silver halide grains in a predetermined spaced array by the...
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4329411 |
Multicolor diffusion transfer products
The sensitometric properties of multicolor diffusion transfer film units may be modified after the photosensitive element has been coated. Sensitometric modification is effected by a photoexposure...
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4322489 |
Copolymeric mordants and photographic products and processes utilizing same
Copolymeric mordant materials containing recurring units according to the following formula are disclosed: ##STR1## In such copolymers, each of R 1 , R 2 and R 3 can independently be alkyl;...
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4298674 |
Color transfer film and process
Diffusion transfer films and processes are disclosed wherein the processing composition includes a light-reflecting pigment and a pH-sensitive optical filter agent, and the image-receiving element...
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4291964 |
Strobe switch with camera control feature
An electronic flash adaptable for releasable connection to a camera of the type having an exposure control circuit automatically switchable from an ambient mode of operation to a flash mode of...
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4214285 |
Sound motion picture system having concentrated audio system
An audio system having an audio tape drive system and transducer intercoupled in a single unit of concentrated mass with tape contact confined to a short length of one side of the magnetic tape. A...
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4198152 |
Method and apparatus for eliminating undesirable blemishes in coating of processing fluid
Method and apparatus for avoiding undesirable wakes or blemishes in a coating of processing fluid deposited on a moving run of an exposed film strip. Such apparatus includes a doctoring surface...
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4194061 |
Compact high voltage battery
A high voltage, low impedance laminar battery comprising a stack of series connected cells confined under pressure in a housing. The cells comprise laminar anodes, cathodes and separators. The...
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4186015 |
Silver diffusion transfer receiving layer comprising gelatin and polyvinyl alcohol
A receiving element for use in a photographic silver diffusion transfer process which comprises a transparent support carrying a layer comprising gelatin, polyvinyl alcohol and noble metal...
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4186013 |
Silver diffusion transfer receiving layer comprising HEC and gelatin
A receiving element for use in a photographic silver diffusion transfer process which comprises a transparent support carrying a layer comprising gelatin, hydroxyethyl cellulose and noble metal...
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4185903 |
Camera having spatially stabilized photocell
A system for spatially stabilizing the field of view of a photocell on a camera includes a ring mounted for pendulous movement about its central axis, parallel to the optical axis of the camera...
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4184756 |
Strobe without primary storage capacitor
An electronic flash device is powered from a high voltage, low internal impedance battery which may be connected directly across a flash discharge tube to provide a flash discharge current through...
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4184745 |
Translucent screen
Translucent screens are provided comprising a dispersion of starch particles in a continuous polymeric phase.
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4182561 |
Fast charging electronic flash device
An electronic flash device is preferably powered by a high voltage, generally planar multicell battery having a low internal impedance and a high current discharge capability to enable a flash...
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4181778 |
Novel battery anode
A relatively thin, flat or planar battery which includes one or more cells, each cell having a planar anode in superposed relationship with a planar cathode and a separator disposed intermediate...
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4179199 |
Combination motion picture camera and viewing apparatus
Apparatus is provided for permitting viewing of images carried by a motion picture film strip contained within a film cassette, of the type having a permanent prismatic reflective element at its...
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4172640 |
Movie camera having supplemental exposure
A motion picture camera having an in-camera supplemental exposure system in which a light source within the camera is energized in synchronization with the shutter opening to provide a low-level,...
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4168166 |
Photographic processing composition comprising borate
A processing composition adapted for use in a silver diffusion transfer film unit which includes an alkali soluble borate compound.
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4165153 |
Translucent screen
Translucent screens are provided comprising a dispersion of low index of refraction particles dispersed in a continuous polymeric phase of a higher index of refraction material.
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4161815 |
Methods for making electrical cells and batteries
A laminar battery comprising subassemblies made by laminating cellophane to a sheet of conductive plastic on which a series of metallic electrodes have been formed in a series of regions within the...
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4125684 |
Electrical cells and batteries
Laminar electrical cells in which one electrode comprises a thin layer of active electrode particles adhered to a central region of a conductive plastic substrate and in contact with a central...
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4124742 |
Electrical cells and batteries and methods and apparatus for making the same
A laminar battery comprising subassemblies made by laminating cellophane to a sheet of conductive plastic on which a series of metallic electrodes have been formed in a series of regions within the...
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4119770 |
Electrical cells and batteries
A thin flat battery comprising a plurality of cells separated by intercell connectors comprising conductive carbon in a thermoplastic resin, in which each cell consists of a cathode comprising a...
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4099858 |
Variable light transmission ophthalmic device
An ophthalmic device comprising superposed pairs of light polarizing elements, one pair of such elements being fixed and the other pair being rotatable with respect to the fixed pair to provide a...
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4096492 |
Camera with detachable electronic flash unit and exposure control system therefor
A camera with a detachable electronic flash unit. The camera includes apparatus effective when the flash unit is detached for making an automatically controlled exposure under ambient light...
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4093696 |
Method of making a flanged fluted self-coiling sheet
A method for making a self-retracting imbibition chamber by cutting a sheet, folding the sides into flanges, fluting the flanges followed by coiling and curing the material into a spring-like state.
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4091400 |
Multiple battery camera
A first battery powers the electrical system of an automatic photographic camera throughout each cycle of operation. A second camera battery is normally electrically isolated, and is connected with...
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4072968 |
Self-retracting imbibition chamber for cameras and method of making the same
A compact, self-retracting imbibition chamber for cameras in which the film is ejected just after exposure and passed through processing units which distribute processing fluid throughout the film...
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4047213 |
Method and apparatus for heating cassette contained film strip during processing
A film strip heating method and apparatus for use in photographic systems of the type in which a film strip, contained in a multi-purpose cassette during exposure, processing and projection, is...
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4046457 |
Polymeric film base carrying fluoropolymer anti-reflection coating
Transparent elements useful as supports for photographic image-carrying and/or image-recording layers are provided comprising a polymeric film base having an anti-reflection coating on one surface....
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4042760 |
Flat battery
A planar primary battery particularly suited for a photographic application characterized in exhibiting high current drain capacities and improved manufacturability. The battery structure...
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4038077 |
Process comprising diffusion transfer silver image removal
This application relates to procedures wherein a photographic image in silver prepared by diffusion transfer is treated in such a manner as to provide a printing plate or inking master useful in...
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4007472 |
Flat battery with dry cathode strata and slurry cathode strata
A planar primary battery particularly suited for photographic applications characterized in exhibiting high current drain capacity. The battery structure includes positive active components...
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4007471 |
System for mounting photographic accessories on a camera
A system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The system includes an accessory...
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4007470 |
Battery operated camera having a handle thereon formed in part by an external battery
A battery operated camera includes a carrying strap having members thereon for receiving the opposite ends of a battery for powering electrical components of the camera. The battery includes...
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4007469 |
Photographic apparatus with plurality of selectively determinable operational modes
A camera is provided with a built-in electronic flash unit, a viewfinder for simultaneously framing an image and for selectively displaying a number of indications, a circuit for sensing the state...
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3996050 |
Whitening agents in color diffusion transfer film units
This invention relates to photographic film structures for forming color transfer images viewable by reflected light without separation of the photosensitive and image-receiving components and to...
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3994008 |
Camera accessory mount
An accessory mount for use in a system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The...
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3990898 |
In-process color balance adjustment of photographic film using filter dyes
The color speeds of a multicolor photosensitive element are balanced during the manufacture thereof by continuously introducing into said element optical filter means adapted to modulate the...
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3990895 |
Silver halide, color screen elements and their use in forming negative color images and diffusion transfer positive silver images
Color photographic products and processes are disclosed which provide a silver image in registration with a light-transmitting screen composed of minute optical elements, such as an additive color...
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3976486 |
Diffusion transfer color products and processes with substituted halide silver halide emulsions
Multicolor diffusion transfer processes and products for use in performing such processes are disclosed employing dye developers and red-, green- and blue-sensitive silver halide emulsions, at...
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3958261 |
Reflex camera and viewing device and attachment therefor
A compact folding camera and viewing device and an apertured flexible mask removably attachable to the viewing device over the eye lens thereof. The mask folds flat within the viewing device in a...
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3882517 |
SYSTEM FOR MOUNTING PHOTOGRAPHIC ACCESSORIES ON A CAMERA
A system for mounting accessories, e.g., filters, supplementary lenses, lens shades, etc., on a compact camera housing including a flash unit receiving socket. The system includes an accessory...
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3853562 |
CONTAINER FOR DIFFUSION TRANSFER FILMS WITH WHITENING AGENT CONTAINING PROCESSING SOLUTION
This invention relates to photographic film units adapted for forming color transfer images viewable by reflected light and to diffusion transfer processes employing these film units wherein a...
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3833427 |
PLANAR BATTERY, PROCESS OF MANUFACTURE THEREOF AND FILM CASSETTE INCLUDING THE SAME
A relatively thin, flat or planar battery which includes one or more cells in series relationship which comprise a planar anode in superposed relationship with a planar cathode and a separator...
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3833368 |
PHOTOGRAPHIC PRODUCTS INCORPORATING ANTI-REFLECTION COATINGS
Photographic images, particularly multicolor images, viewed through a transparent support have an anti-reflection coating on the outer surface of said support. The anti-reflection coating comprises...
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