Easy To Use Patents Search & Patent Lawyer Directory

At Patents you can conduct a Patent Search, File a Patent Application, find a Patent Attorney, or search available technology through our Patent Exchange. Patents are available using simple keyword or date criteria. If you are looking to hire a patent attorney, you've come to the right place. Protect your idea and hire a patent lawyer.

Searching: photography





Search by keyword, patent number, inventor, assignee, city or state:




Patent # Description
US-4,191,460 Camera with automatic focus adjustment device
A camera having a zoom lens with a focusing range changeover device for selectively permitting photography in either one of the ordinary zoom and macro-zoom...
US-4,187,225 Novel synthesis of bis pyrazolone oxonol dyes
In one embodiment, this application is directed to an improved method of synthesizing certain bis-pyrazolone oxonol compounds useful as antihalation dyes in...
US-4,187,017 Motor drive device in a camera
In a motor drive device capable of being coupled to a camera having an automatic exposure control circuit for determining the aperture value and/or the shutter...
US-4,186,305 High-temperature microscope
The present invention relates to a high-temperature microscope. According to this invention, a specimen is held in vacuum with one side of it heated through...
US-4,184,872 Additive system of color photography based on iridescent pigments
An inorganic system of color photography in which colored images are recorded with compositions comprising a mixture of an iridescent pigment of the type...
US-4,184,759 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-4,182,918 Process for the preparation of polyhydric phenols
A process has been invented for the preparation of dihydric substituted phenols which comprises reacting a solution, which is essentially anhydrous and free from...
US-4,182,917 Process for the preparation of polyhydric phenols
A process has been invented for the preparation of pyrocatechol and hydroquinone which comprises reacting a solution which is substantially anhydrous and free...
US-4,182,573 Exposure meter
An exposure meter for use in photography which includes means for measuring brightness at a plurality of places in a scene to be measured for exposure, means for...
US-4,182,557 Single lens reflex camera capable of high speed continuous photography
A single lens reflex camera capable of the high speed continuous photographing. It achieves high speed continuous photography by means of an automatic winding up...
US-4,181,297 Positioning device for human limbs and the like
A positioning device for holding a human limb in a fixed position on a table for examination and/or X-ray photography. The device secures the limb against...
US-4,179,290 Photoelectrophoretic photography process involving dual corona treatments of opposite polarity
A photoelectrophoretic image-forming process utilizing a pair of electrodes with at least one of the electrodes being transparent and at least one of the...
US-4,178,447 Novel synthesis of 3,3-substituted dihydrobenzisothiazole-1,1-dioxides and...
This invention relates to a method of synthesizing certain 3-(carbocyclic aryl)-3-(4'-OP-carbocyclic aryl)-2,3-dihydrobenz[d]isothiazole-1,1-dioxides (and ...
US-4,178,181 Interference film photography
This invention concerns improvements in interference film photography.
US-4,178,090 3-Dimensional camera device
This invention relates to a reflex camera device having a single lens for the photography of right and left images from an object space transmitted as first and...
US-4,175,829 3-Dimensional camera device
This invention relates to a reflex camera device having a single lens for the photography of right and left images from an object space transmitted as first and...
US-4,174,162 Aerial camera mounting means
An improved apparatus is disclosed for adjustably mounting an aerial photaphy camera externally of an aircraft, including a support adapted for attachment to...
US-4,169,666 Foreground stabilization system for use in composite photography
In a composite photography system of the type wherein a foreground camera photographs life-size actors and objects while a background camera photographs scenery...
US-4,168,891 Camera for daylight and flash photography
A camera having an electronic flash unit either incorporated therein or removably attached thereto is provided with a flash mode selector and a flash energy...
US-4,168,338 Transfer sheet with toner-receiving layer of thermoplastic and thermosetting polymers
A transfer sheet for electrostatically transferring thereon an electrically conductive or electrically semi-conductive toner in electrostatic photography or...
US-4,166,681 Camera incorporating an electronic flash device
A camera incorporating an electronic flash device includes a flash emitting portion which is urged by a spring toward a projecting position and is normally...
US-4,164,370 Shutter device in a camera
A shutter device in a camera which effects photography with shutter curtains maintained open for a predetermined time comprises a rotatable member for normal...
US-4,163,256 Electronic photography system
A completely electronic system for recording and subsequently displaying still life pictures includes an optical-electronic transducer for generating electronic...
US-4,162,838 Camera viewfinder
Photographers frequently want to obtain pictures of unposed subjects or pictures taken from an unusual angle. The concept presented in this application is an...
US-4,162,776 Aerial photography camera mount assembly for a helicopter
An assembly for mounting, supporting, and releasably holding an angularly adjustable aerial photography camera that is to be used to take aerial reconnaissance...
US-4,158,155 Ignition circuit for extinguishing tubes in electronic flash equipment
An ignition circuit is provided for extinguishing tubes in electronic flash equipment for photography. The second winding of an ignition transformer is arranged...
US-4,156,034 Liquid developer for electro photography
A liquid developer for electro photography which comprises a coloring agent, a coating agent, a resistivity controlling agent and a carrier liquid which...
US-4,153,356 Light source apparatus for endoscope
A light source apparatus for endoscopes is provided which automatically controls an illuminating source used in an endoscope for photography. The apparatus...
US-4,150,882 Identification code generator for high speed motion picture photography
A method and apparatus for generating a variable pulse width code of at lt three binary coded decimal digits at a rate sufficiently greater than the film speed...
US-4,150,306 Blocking converter for flash equipment
A blocking converter is provided having a switching transistor controlled via a triggered monoflop with a defined on-time RC circuit which insures that the same...
US-4,149,887 Photography utilizing micro-capsular materials
A micro-capsular material for use as a photographic reproducing medium includes a plurality of micro-capsules distributed over a given surface. Each of the...
US-4,146,394 Filter pack correction method in color photography
A method of predicting the filter pack correction required to print a color ilm that has been exposed at any illuminant color temperature is provided without the...
US-4,141,176 Posable doll, means for movably mounting same and toy camera
In an apparatus for posing a doll, a platform is provided for supporting the legs of a doll and providing relative movement between the so-supported legs, the...
US-4,139,291 System and method for obtaining wide screen Schlieren photographs
A system for use in Schlieren photography including a large grating, a viewing screen adjacently related to the large grating, a small grating disposed in spaced...
US-4,139,097 Stackable container tray for storing and displaying flat objects
A semi-transparent, tray-like container having a flat bottom and substantially vertical side and end walls defining a storage space has flange-like projections...
US-4,138,264 Silver halide emulsion containing two equivalent type coupler for use in photography
A novel two-equivalent naphthol or phenol type cyan coupler is disclosed wherein the active position thereof has a split-off group which contains a bonding group...
US-4,137,188 Magnetic toner for electrophotography
An insulating magnetic toner useful as a one component developer for electro-photography consisting essentially of a ferro-magnetic material, a resin and a...
US-4,136,613 Fixing apparatus for electrostatic photography
A copy sheet is fed between a heated fixing roller and a nip roller to fix a toner image to the sheet. An applicator applies an offset preventing liquid to a...
US-4,134,767 Silver halide photosensitive material for color photography
A method of bleaching an imagewise exposed and then developed silver halide photosensitive material for color photography wherein said material contains a red...
US-4,134,766 Dye image forming process
Cyan couplers of the 2-equivalent type having the formula ##STR1## wherein C.sub.p, R.sub.1 -R.sub.6, Z, n, p and q are herein defined are described. These...
US-4,134,644 3D Color pictures with multichrome filters
This invention relates to a system for photographing, presenting and viewing 3D images, in which a set of mutually extinguishing multichrome A and B filters in...
US-4,133,602 Method for producing color structure change through interaction of light sources and application to improved...
Apparatus for controlling the interaction of light sources to produce a decodable composite image which image may have three dimensional characteristics and...
US-4,131,797 X-ray diagnostic installation for fluoroscopy and photography
In an illustrated embodiment, a switch control handle is shiftable from an upper position to a lower position to disconnect the fluoroscopic x-ray voltage and...
US-4,129,369 Parallax compensating device for the view finder in a camera
A camera which incorporates a supplemental lens that may be selectively used in combination with a normal picture-taking lens by moving a selector device...
US-4,128,324 Three-dimensional photography using incoherent light
A recording medium comprises a photographic plate and an aperture-raster plate parallel to but spaced from the photographic plate. The aperture-raster plate is...
US-4,126,877 Safety device for an exposure amount control equipment
The present invention relates to a safety device for exposure amount control equipment consisting of a camera and an electronic flash device, including a...
US-4,126,459 Thioether substituted silver halide solvents
Difunctional compounds wherein one of said functions is a hard or soft atom that ionizes to the corresponding anion in alkaline solution to combine with silver...
US-4,125,849 Three dimension camera having a film holder
A photographic camera for three dimension photography. A housing has an opening to the interior for light rays. Photosensitive material is located in...
US-4,124,291 Control of depth of field in three dimensional photography
In a camera for taking stereoscopic photographs, wherein a lenticular screen and photosensitive film are exposed to an object field through a wide effective...
US-4,124,276 Soft focus lens system
A variable soft focus lens system particularly adapted for photography is provided. The soft focus lens system includes at least two lens groups defining a...
← Previous | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | Next →

File A Patent Application

  • Protect your idea -- Don't let someone else file first. Learn more.

  • 3 Easy Steps -- Complete Form, application Review, and File. See our process.

  • Attorney Review -- Have your application reviewed by a Patent Attorney. See what's included.