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| Patent # | Description |
|---|---|
| US-4,264,186 |
Electrophotographic copying apparatus An electrophotographic copying apparatus has a drum with an endless photoconductive material on its periphery and has arranged around the periphery of the... |
| US-4,264,185 |
Two color electrostatographic apparatus An imaging unit forms a bipolar electrostatic image of a two color original document on a photoconductive drum (12). A first developing unit (13) applies a toner... |
| US-4,264,184 |
Ozone removing device for electrographic apparatus An ozone removing device for electrographic apparatus comprising a photosensitive screen and a corona discharge device for producing a harmful ozone is... |
| US-4,264,183 |
Duplex copying apparatus and method The duplex copying of two-sided originals onto two sides of a copy sheet is accomplished by interspersing images from two successive documents on a multi-image... |
| US-4,264,182 |
Electrographic apparatus having improved development structure An electrographic development apparatus, particularly suited for single component developer, provides an electrographic imaging member mounted in a tensioned... |
| US-4,264,181 |
Metal-filled nucleophilic addition cured elastomer fuser member A fuser member and method of fusing or fixing thermoplastic resin powder images to a substrate in a fuser assembly of the type wherein a polymeric release agent... |
| US-4,264,180 |
Processing apparatus An apparatus for processing photosensitive strip material including a developing station, a fixing station, a washing station, and a stabilizing station. The... |
| US-4,264,179 |
Arrangement for opening and closing a film sheet cassette and a film
sheet cassette provided therewith An arrangement for opening and closing a film sheet cassette having a bottom element and a top element movable relative to the bottom element between open and... |
| US-4,264,178 |
Diaphragm device of a photographic lens This specification discloses the diaphragm device of a photographic lens in which the stop-down operating performance over the entire area from the maximum... |
| US-4,264,177 |
Blade mechanism for use in a focal plane shutter A focal plane shutter for a camera of the type wherein an image is viewed through the photographing lens by use of a viewfinder arranged on top of the camera... |
| US-4,264,176 |
Exposure control device for camera A device for preventing erroneous operation of a camera is disclosed. The device includes an electromagnet for closing the camera shutter. Current supply... |
| 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-4,264,174 |
Mechanism for retracting and extending the lens carrier of a camera Apparatus for retracting and extending the lens carrier of a camera comprises epicyclic gearing having a planetary gear mounted on a web and a driving pin... |
| US-4,264,173 |
Lens tube guide frame for use in lens tube retractable type camera A lens tube guide frame holds a retractable lens tube in the body of the camera and also holds a lens and a film surface in their respective correct positions... |
| US-4,264,172 |
Camera The camera includes a lens tube which is slidable relative to a body of the camera between a photographing position and a retracted position. The lens tube is... |
| US-4,264,171 |
Single-lens mirror reflex camera and release mechanism therefor A release mechanism is provided for the viewfinder mirror, which is held in the viewfinder position, of a single-lens mirror reflex camera having a ... |
| US-4,264,170 |
Mirror shock absorbing device in single lens reflex camera A shock absorbing device for a mirror in a single lens reflex camera having a shock absorbing lever with a stopper portion adapted to set the lower position of... |
| US-4,264,169 |
Photographic film unit and cartridge assembly A photographic film unit comprising a preferably disk-shaped photographic film sheet that is attached to a central hub and which may be incorporated in a compact... |
| 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-4,264,167 |
Adapter for coupling a camera with a viewing device An adapter by which a self-contained camera having an objective lens can be optically and mechanically coupled with a well-known endoscope of the type having an... |
| US-4,264,166 |
Photographic film cassette, cassette holder and system A photographic system is particularly adapted for use in a check security system and offers novel features and advantages for such systems. Such system includes a... |
| US-4,264,165 |
Film exposing equipment utilizing a succession of diodes for a luminous
display device A film exposing equipment such as motion picture cameras and still cameras is equipped with photometric devices measuring the quantity of light falling upon the... |
| US-4,264,164 |
Memory holding device in a single lens reflex camera In a single lens reflex camera having a movable mirror, a metering circuit, a circuit for operating a proper exposure value in accordance with the metering... |
| US-4,264,163 |
Exposure control apparatus with compensation for film reciprocity failure A camera includes a photographic film having a given film speed which decreases when the film is exposed to light which varies from a given illumination level. A... |
| US-4,264,162 |
Drive system for electromagnetically driven shutter In the drive system disclosed, a first power source supplies a driving current to drive a moving member of an electromagnetic shutter driving device in one... |
| US-4,264,161 |
Motion detecting device in exposure control system for optical
instruments The present invention relates to a motion detecting device for detecting the relative motion rate or velocity between an object and an optical instrument in an... |
| US-4,264,160 |
Focus indicating device in a camera A focus indicating device in a camera employing a photoelectric transducer for scanning the image of an object to output a time series signal equivalent to the... |
| US-4,264,159 |
Control system for single lens reflex camera An automatic exposure control system for a single lens reflex camera, of the type wherein diaphragm blades defining a diaphragm aperture are driven in response... |
| US-4,264,158 |
Picture changer for large-scale picture projector A picture plate changer for changing pictures projected with a large scale picture projector, e.g., overhead type projectors projecting a single picture from an... |
| US-4,264,157 |
Method and apparatus for manufacturing masked motion picture film for
simulated target practice A scene containing one or more targets for simulated target practice is pographed in a special motion picture camera such that only one half of each frame is... |
| US-4,264,156 |
Composite glass-plastic lens blanks resistant to shaling fracture A glass-plastic laminated lens blank, and a molding assembly for providing such a blank by direct casting, are described, wherein the incidence of blank shaling... |
| US-4,264,155 |
Collagen contact lens Improved soft contact lenses are made from collagen gels to which water-soluble organic polyhydroxy polymers are added, e.g. mucopolysaccharides, polyvinyl... |
| US-4,264,154 |
Apparatus for automatically controlling transmission of light through a
lens system An electromagnetic actuator has a motor that indexes an armature element repeatedly by one step from a rest position, and has an electromagnetic clutch coupled... |
| US-4,264,153 |
Eye fundus inspection device capable of high speed focusing The disclosed eye examination device focuses on the fundus of an eye. A transparent plate with a black line or a plate with a slit is illuminated and the image... |
| US-4,264,152 |
Visual stimulus deflector A deflector, through which a subject views a target or visual stimulus, can independently move the visual stimulus horizontally and vertically to stimulate or... |
| US-4,264,151 |
Optical adaptor for movie and television cameras An optical adaptor is provided to permit objective lenses designated for a certain image format to be used on optical devices having a smaller image format.... |
| US-4,264,150 |
Electrochromic display with lyophilic treatment separator A porous separator used for an electrochromic display cell is treated by lyophilic methods so as to be impregnated by an electrolyte. The lyophilic treatment... |
| US-4,264,149 |
Liquid crystal display device In a liquid crystal matrix display device in which the bistability effect of a cholesteric liquid crystal is used, the number of lines to be driven is increased... |
| US-4,264,148 |
Liquid crystal display devices having an induced cholesteric phase An operable liquid crystal display device having threshold energy fields dependent on a finite temperature operating range is provided with a layer of a liquid... |
| US-4,264,147 |
Indicator device having electro-optical light valve unit An indicating device having an electro-optical light valve unit such as in a liquid crystal cell arranged behind a plate containing fluorescent particles... |
| US-4,264,146 |
Folding laser mirror A laser mirror adapted to prevent astigmatism of reflected laser beams where the mirror is used for "folding" the laser beam such that the incident laser beam... |
| US-4,264,145 |
Invertible apparatus for the reflection of solar radiation Apparatus for reflecting light including a head carrying a reflecting panel and mounted for rotation on a column, said head including a mechanism for rotating... |
| US-4,264,144 |
Rearview mirror A rearview mirror for passenger vehicles has a primary viewing surface that is substantially flat. This surface curves to the rear of the mirror, with a... |
| US-4,264,143 |
Device for adjusting a rear view mirror The invention relates to a device for adjusting a rear view mirror, particularly for a vehicle, comprising a support member fixed on the gusset plate of a door... |
| US-4,264,142 |
Setting or adjusting means for rearview mirrors of motor vehicles A setting or adjusting device for rearview mirrors with a mirror plate secured to an arm which is pivotal both about a substantially vertical axis and about a... |
| US-4,264,141 |
Method and arrangement of apparatus for frequency shifting a
monochromatic narrow bandwidth light beam Arrangement for frequency shifting a monochromatic narrow-bandwidth light beam, in particular a laser beam, based upon the Doppler effect due to reflection from... |
| US-4,264,140 |
Low reflection coatings for windows A low reflection coating for windows. A coating of silicone rubber is applied on one surface of the window and preferably also on the other surface. Each coating... |
| US-4,264,139 |
Lens system for facsimile A lens system for facsimile comprising a first positive lens component, a second biconcave lens component and a third lens component consisting of a negative... |
| US-4,264,138 |
Photographic lens system A photographic lens system having five lens components in which separation of a cemented lens of the second lens component of the Biometer type lens system has... |
| US-4,264,137 |
Compact retrofocus type lens system A compact retrofocus type lens system having a first lens component of a positive meniscus lens with its convex surface facing the object side, second and third... |
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