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Patent # Description
US-4,699,501 Image forming apparatus with an operation panel control function
An image forming apparatus with an operation panel control function, the apparatus has a housing including an original scanning section for optically scanning an...
US-4,699,500 Electrographic copier with three development stations
An electrographic apparatus has a photoconductor in the form of an endless web, and latent images are formed on one side of the web. The photoconductor is...
US-4,699,499 Image forming apparatus
An image forming apparatus includes an image bearing member on which a toner image is formed. The toner image is transferred onto a transfer material by...
US-4,699,498 Image projector with liquid crystal light shutter
In an improved image projector with liquid crystal light shutter, a layer of ferroelectric liquid crystals contained in a liquid crystal light shutter at which...
US-4,699,497 Illumination lamp assembly for a document scan system
An illumination lamp assembly is provided for scan/illuminating a document during a document scan mode. The assembly includes an elongated lamp partially...
US-4,699,496 Contact pressure mechanism for a web-shaped image receiving material
The invention relates to a contact pressure mechanism for pressing or lifting a web-shaped image receiving material against or off from a drum-shaped image...
US-4,699,495 Electrographic development apparatus having coordinated gate mechanism and wiper
A development station for electrographic apparatus has a magnetic brush which receives developer material from a sump and applies it to a latent image on a...
US-4,699,494 Process unit and image forming apparatus using such unit
The present invention solves the problem arising when a photosensitive medium and some or all of means for forming a latent image on the photosensitive medium...
US-4,699,493 Focus detecting device
A device for detecting the focused state of an objective lens comprises a re-imaging lens unit arranged to distribute light from a primary image formed by the...
US-4,699,492 Photographic information input device for camera
A photographic information input device for a camera in which a correction effectiveness variable switch for controlling the effectiveness-ineffectiveness of a...
US-4,699,491 Camera accessory with encoder adjusting device
A camera accessory such as an exchangeable lens or an electronic flash device, selectively attached to a camera and having a driven member and an encoder for the...
US-4,699,490 Diaphragm control device for cameras
A diaphragm control device for a lens exchangeable type camera includes diaphragm driving means providing a uniform speed over the entire diaphragm control...
US-4,699,489 Film winding member
A film winding member for a camera includes a lower disposed portion of widened diameter for initial contact with the leading end of the film. Both the widened...
US-4,699,488 Motorized drive device for camera
A motorized drive device for a camera comprising an electric motor and a transmission system operating with selection of at least two speed change ratios. The...
US-4,699,487 Mode setting device for camera
A camera operating with selection of a plurality of automatic drive modes for setting single shooting and continuous shooting respectively, and with selection of...
US-4,699,486 Camera with openable and closable grip
A structural arrangement for members to be operated for control over varied functions of a camera, such as operation buttons, terminals for connection with...
US-4,699,485 Method and camera system for the inspection of boiler tubes
In a fire tube boiler, combustion takes place in elongated boiler tubes, which are subject to corrosion, wear, deposition build-up and color changes. A...
US-4,699,484 Rail mounted camera system
A camera system which has a wheeled rail car (20) with running gear (26) front and back connected to a chassis (40) containing a movable panning head (46) on the...
US-4,699,483 Device for adjusting a video tape camera shutter mechanism
A focal plane shutter for a video camera has a pair of disks rotated in the same direction about a common axis in synchronism with the raster scan blanking...
US-4,699,482 Opthalmoscopic system
An ophthalmoscopic system having in combination, a intraocular illumination light source, a multitude of light transfer fibre optics regularly arranged in...
US-4,699,481 Stereoscopic microscope
A stereoscopic microscope comprises a first index to be projected to a cornea of an eye under inspection, a pair of observation optical systems for observing a...
US-4,699,480 Surgical ophthalmoscopes
A surgical ophthalmoscope for observing the fundus of a patient's eye, the ophthalmoscope having a left eyepiece and a right eyepiece, a light source for...
US-4,699,479 Eyeglass frame structure and method of assembling same
Disclosed is an eyeglass frame and method of assembling the same in which a temple includes a pair of parallel ears which extend from one end of the temple. Each...
US-4,699,478 Self-cleaning rearview mirror
An object of the present invention is to provide a self-cleaning rearview mirror, attached to the outside of many different kinds of vehicles. An advantage of...
US-4,699,477 Projection lens system
A lens system is provided which is suitable for back-projecting an enlarged image of a TV cathode ray tube (CRT). To achieve a compact cabinet design 1 for such...
US-4,699,476 Projection lens system
A lens system is provided which is suitable for back-projecting an enlarged image of a TV cathode ray tube (CRT). To achieve a compact cabinet design 1 for such...
US-4,699,475 Zoom lens including a wide angle of view
A zoom lens including a wide angle of view has, in succession from the object side, a first lens group of positive refractive power, a second lens group of...
US-4,699,474 Compact zoom lens
A zoom lens for a color video camera in which zoom ratio is 6 and F number is approximately 1.4. The zoom lens comprises a positive first group for focusing, a...
US-4,699,473 Trifluoromethyl substituted spirooxazine photochromic dyes
The organic photochromic composition of this invention comprises trifluoromethyl substituted spiro (indoline-2,3'-(3H) napth-(2,1-b)(1,4)oxazine) (SO) dyes. This...
US-4,699,472 Polarization controlling device and method
An unpolarized light beam is split into two orthogonal polarized beams. Each polarized beam is attenuated by passing it through the sequence of a first...
US-4,699,471 Electrochromic display device
An electrochromic light transmission control device in which the electrochromic film is operated under control not to reach the color saturation condition,...
US-4,699,470 NCAP liquid crystal apparatus incorporating a control means and an electrode means thereof incorporating a...
A liquid crystal apparatus comprising a nematic curvilinearly aligned phases liquid crystal material located between two electrodes wherein a control element is...
US-4,699,469 Liquid crystal display
A high content LCD includes, a glass plate; a polysilicon deposited substrate supporting a matrix of electrodes; each of the electrodes defining a picture...
US-4,699,468 Liquid crystal modulator for the transmission of information, including speech, in the visible and infrared range
A liquid crystal light modulator is constructed for the transmission of sch signals modulated onto a light carrier passing through gaseous, liquid, and solid...
US-4,699,467 Arrangement for illuminating a room with daylight
The daylight enters the room through at least one inner light port which is limited at the top by a flat upper reflector and at the bottom by a parabolic lower...
US-4,699,466 Optical RF filtering system
An optical notching filter in which a band of radio frequencies such as the RF input of a radio receiver is an input signal. The input signal modulates a laser...
US-4,699,465 Laser diode array with phase correction
A laser diode array produces one set of beams that are out of phase with those of another set of beams, with the beams of one set alternating with those of the...
US-4,699,464 BeF.sub.2 -based optical fibers
Disclosed is BeF.sub.2 -based optical fiber. Such fiber can have, in addition to low loss, other advantageous properties. For instance, BeF.sub.2 -based...
US-4,699,463 Multidirectional viewing borescope
An elongated, tubular inspection instrument characterized as having a control head at its proximal end and an objective assembly at its distal end. Flexible...
US-4,699,462 Fiber optic cable termination and method for forming same
A method is disclosed for forming a termination between a fiber optic cable having a centrally positioned optical fiber and a plurality of surrounding ...
US-4,699,461 Overhead flexible electric conductor
An overhead electric conductor comprises a central tubular metal core, at least one layer of helically wound bare metal wires surrounding the core and, loosely...
US-4,699,460 Method and apparatus for repairing fiber optic cable
Disclosed is a method and apparatus for quickly joining one set of optical fibers to another set followed by permanent repair. The basic apparatus comprises two...
US-4,699,459 Joint for optical fiber submarine cables
Joints for optical fiber, submarine cables in which the tensile resistant element is centrally located in the cables, rather than at the exterior of the cables,...
US-4,699,458 Fiber optic connector
A fiber optic connector, especially for multiple-core fiber optic cables, in which a ferrule (2), mounted in a ferrule insert (3), and adapted to receive the...
US-4,699,457 Optical fiber switch and method of making same
An inexpensive and efficient switching device for use with optical fibers is disclosed wherein at least three optical fibers are mounted in the switching device...
US-4,699,456 Hermetic fiber seal
Disclosed is an assembly for hermetically sealing lightwave component packages and aligning optical fibers. The fiber is fed through a tube and soldered at one...
US-4,699,455 Fiber optic connector
A connector for coupling an optical cable including at least one optical fiber terminated in an optical contact to a phototransducer device is disclosed. A...
US-4,699,454 Fiber optic connector
Disclosed is an electro-optical component package (12), arranged as a dual in-line pin (DIP) package, and a socket (13) therefor. Connector pins (17) extending...
US-4,699,453 Monolithic fiber optic coupler having total internal reflecting surface
A coupler for light between the termination of an optical fiber and one or more detector or emitter elements in which the optical path between the termination...
US-4,699,452 Optical communications system comprising Raman amplification means
An optical fiber communications system with Raman amplification of the signal radiation comprises a broadband pump radiation source, or, preferably a...
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