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-4,544,254 Camera with a display device for displaying both object distance informations and coupling range informations
A camera provided with a display device that displays changing of the coupling range of a strobe as the amount of charge stored on a main capacitor in the strobe...
US-4,542,975 Camera flash light control circuitry
In a flash photography system including an electronic flash device adapted to be combined with a camera which is adapted to transmit first and second signals to...
US-4,542,974 Flash photography apparatus
In the disclosed flash unit, a preliminary flash for evaluating a proper exposure precedes a main flash. A flash exposure control apparatus respond to tilting of...
US-4,542,959 Color correction filter and method of taking underwater photographs therewith
A color correction filter is disclosed, which is especially adapted for use in underwater photography. The filter has a transparent element which passes...
US-4,541,702 Automatic focus adjusting device
Automatic focus adjusting device comprising a range finding means which generates a signal corresponding to a distance to an object to be photographed; means for...
US-4,541,021 Electronic still camera
An electronic still camera which is capable of taking a still picture purely electronically. Such a camera employs a magnetic tape recorder of audio grade but is...
US-4,536,848 Method and apparatus for colored computer graphic photography
Method and apparatus for making and photographing computer graphic colored images by defining each computer graphic colored image as a plurality of constant...
US-4,534,638 Exposure control device for camera
The disclosed camera has shutter blades which also serve as diaphragm blades and an auxiliary light-metering aperture arranged, upon operation of the shutter...
US-4,532,202 Coupler for photography
There is disclosed a coupler for photography represented by the formula: ##STR1## wherein R.sub.1 represents a branched alkyl group having 3 to 5 carbon ...
US-4,529,301 Color print system
A system for optimizing the printing of photographs. For color prints, a piece of photography paper is progressively and sequentially exposed to varying amounts...
US-4,525,054 Camera
The disclosed camera permits selection of one exposure control mode along one program line based on brightness and at least another control mode along another...
US-4,519,684 Photo flash lamp
An improved photo flash lamp, especially suited for medical photography includes a housing having a viewing tube extending therethrough and protruding...
US-D278,913 Combined clamp and table stand for photography
US-4,516,157 Portable electronic camera
A video recording device is arranged to be worn by the user like a pair of spectacles. In the recording mode, the scene in front of the user is recorded on a...
US-4,512,644 Flash device
In the disclosed flash device, a flash portion is shiftable from an ordinary flash position to a bounce flash position. Automatically controlling the...
US-4,511,233 Charge control device in a flash device for a camera
A flash device for photography includes a DC/DC converter for boosting a DC power source voltage and applying a voltage to a main capacitor for supplying an...
US-4,510,525 Stereoscopic video imagery generation
Flying spot scanner technology is combined with stereo photography in motion to produce two channels of video imagery which can be optically combined to produce...
US-4,507,386 Silver halide photographic emulsion
A silver halide photographic emulsion containing a coupler for photography, comprising silver halide particles in said emulsion consisting essentially of 2 mole...
US-4,505,566 Range focusing system for a camera
A camera provided with a fixed focusing lens as a main photographic wherein a range finder is provided for setting at two distances, an oscillating lever is...
US-4,504,142 Photography printing frame
An improved contact photo vacuum frame includes a specially constructed inflatable bladder which backs up the pressure blanket. The bladder is divided into a...
US-4,504,129 Photography adaptor assembly for a slit lamp examination unit
An assembly for adapting any of several different models of commercially-available slit lamps (10) into an optic examination unit capable of being used for...
US-4,502,771 Camera with a voice transmitting device
A camera with a voice transmitting device able to detect necessary informations for judging various states of the camera at the time of photography and to make a...
US-4,501,481 Flash photographing system
A flash device for a photographic camera either inhibits a flashing action or shifts the control mode of the camera from flash photography to daylight...
US-4,500,191 Photography modes switchable camera
A camera including an objective lens device whose focal length is manually changeable, is automatically switched from a natural light photography mode to a flash...
US-4,500,190 Camera system including flash and status indicating control circuit
A camera flash device is provided for photography requiring the use of a flash by transmitting plural information from the flash side to the camera side. The...
US-4,497,562 Exposure control device for flash photography
An exposure control device for flash photography using a first program signal circuit 5 for generating signals representative of a shutter speed and a diaphragm...
US-4,496,230 Exposure control device for cameras
A flash photography system for a camera which is adapted to be used with an electronic flash device which supplies a control signal when the device is a ready...
US-4,495,268 Electrophotographic process using transfer-type one-component magnetic developer
Disclosed is a transfer-type one-component dry magnetic developer which comprises a binder medium having a high electric resistance and particles of triiron...
US-4,494,864 Apparatus for stereoscopic photography
An apparatus and method of producing a parallax stereogram, i.e., free vision stereogram, and particularly for the accurate registration of a plurality of film...
US-4,494,851 Display unit for flashlight photography
In a flashlight emission system, apparatus for lighting a flash tube to illuminate an object and for controlling the quantity of emitted light from the flash...
US-4,494,850 Flash photographing system
The disclosed flash photography system operates in a first mode by controlling the flash on the basis of the distance information signals, and in a second mode...
US-4,494,828 Zoom lens system of relatively high zoom ratio ranging to wide angle photography
A zoom lens system of a relatively high zoom ratio ranging from a telephoto to a wide field angle is provided. The zoom lens system comprises from the object to...
US-4,493,098 X-Ray collimator
The invention relates to a collimator employed in X-ray equipment, which collimator comprises three or more perforated collimator plates. The purpose of the...
US-4,491,405 Camera suitable for flash photography
The present invention has two photometric circuits, namely photointegrating circuits, one of them is for day light photography and other is for flash ...
US-4,491,404 Flash photography system
There is provided a flash photography system which allows control of a relation between a light emission duration of a flash device and a full-open time of an...
US-4,484,801 Panoramic lens
A panoramic lens grouping utilizes a number of negative and positive power enses to provide 360.degree. photography and projection capabilities. The lens grouping...
US-4,480,896 Optical filter suitable for portrait photography
An improved soft focus optical filter is provided and comprises a plurality of effective filter areas on a transparent substrate. The filter areas are designed...
US-4,480,893 Optical and viewing system for stereoscopic photography
A stereoscopic optical system for use in a camera to simultaneously photograph two separated views of a three-dimensional scene with lenticular type film and a...
US-4,478,928 Application of activated arylhydrazides to silver halide photography
The use of sulfinic acid radical substituted arylhydrazides in producing images in silver halide photographic elements is disclosed. The sulfinic acid radical...
US-4,478,639 Method for stereoscopic photography
An apparatus and method of producing a parallax stereogram, i.e., free vision stereogram, and particularly for the accurate registration of a plurality of film...
US-4,478,493 Apparatus having liquid crystal finder optical system
The disclosed apparatus includes a finder optical system with a liquid crystal display having a plurality of strips of transparent conductive material arranged...
US-4,477,554 Diffusion transfer material and process
A photographic material for diffusion transfer photography containing a quinonoid compound, which is capable in reduced state and under alkaline conditions of...
US-4,477,170 Annunciator for flash photographing system
A flash photography system including a computer type electronic flash device and a camera controlling the exposure value by using the light coming from an object...
US-4,475,801 Flashlight photography preparing device of a camera
In a camera provided with a flash unit, a device for limiting the preparatory operation for flashlight emission of said flash unit comprises metering means for...
US-4,475,798 Camera for stereoscopic photography
A photographic camera for providing a plurality of film images in order to produce a stereogram. The camera has a plurality of objectives which are independently...
US-4,475,146 Front lighting system for photography
A special front lighting system for use in a relatively narrow room in which a large track mounted camera photographs subjects held on a subject holder. A pair...
US-4,472,496 Process for preparing silver halide emulsion
There is disclosed a process for producing a silver halide emulsion comprising sulfur sensitizing a silver halide emulsion for photography containing a chloride...
US-4,471,969 Combination folding stool and dolly
A combination portable dolly and collapsible stool for transporting photography equipment and the like, and for providing an elevated platform for taking...
US-4,470,685 Intermediate adapter
Disclosed is an intermediate adapter to be used between the camera body and the photographing lens during close-up photography. A light beam splitter in the...
US-4,470,684 Energy efficient charging apparatus for an electronic flash
A camera having electronic flash apparatus for flash photography includes a rangefinder for measuring distance to a subject to be photographed, and circuitry for...
← 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.