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4120578 |
Continuously variable reduction scanning optics drive
A continuously variable reduction scanning optical system wherein a preferred embodiment is disclosed with mechanisms for continuously adjusting the magnification ratio, the total conjugate length,...
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4118118 |
Electrostatic copier machine with selectable magnification ratios
A xerographic copier machine capable of producing copies of an original document in a selectable magnification ratio. The machine includes an object mirror and a light source forming a scanning...
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4116554 |
Optical reduction system featuring the provision of borders
The optical system disclosed is incorporated in a copying machine and has provision for changing magnification of original documents of diverse sizes while maintaining a common image plane...
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4116562 |
Optical system featuring change in magnification by combined lens and mirror motion
The optical system disclosed is incorporated in a copying machine and has provision for changing magnification of original documents of diverse sizes while maintaining a common image plane...
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4110030 |
Electrostatic copying apparatus
In a copying apparatus, a sheet original exposure unit is provided which has an exposure window for exposing a sheet original therethrough, and a transport device for transporting the sheet...
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4101218 |
Electronic copying apparatus
An electronic copying apparatus comprises a movable optical unit with a mirror lens defining a first light path between an original and the mirror lens and a second light path between the mirror...
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4095880 |
Extended range variable magnification reproduction machine
A document reproduction machine having an extended range of magnifications employs a scanning optical system which is controlled as to scanning speed and distance of travel by the selected...
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4093374 |
Multiple range variable magnification reproduction machine
A document reproduction machine having a multiple range of magnifications employs a scanning optical system which is controlled as to scanning speed and distance of travel by the selected...
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4080062 |
Variable magnification optical mechanism
The disclosure describes a variable magnification optical mechanism in an image forming apparatus in which a varied image at a selected magnification of an original image is formed. A...
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4077715 |
Adjustable optical cam
An automatically focusing optical system for copiers, duplicators and other reproduction equipment having a variable magnification capability. The auto-focusing mechanism comprises a camming means...
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4068944 |
Microfilm viewer having enlarged copy production attachment
A microfilm viewer has an attachment for producing enlarged copies of microfilm, the viewer being of a typical construction and modified as having a cabinet opening beneath the area containing a...
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4047811 |
Available light marginal illumination system
A reproducing apparatus including an optical system for viewing an object such as a document and for projecting an image thereof onto a photosensitive surface selectively at a first copy image...
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4033691 |
Variable magnification reproducing apparatus
A reproducing apparatus for producing copies of a document selectively at one of a plurality of copy image magnifications. A photosensitive surface is arranged for movement at a given velocity. A...
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3999850 |
Optical system for an electrophotographic device
An optical system for an electrophotographic machine utilizing a photosensitive member, wherein a reflecting mirror and an in-mirror lens are integrally pivotable for adjusting a light path between...
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3998540 |
Repositioning system for viewing and projection elements of a reproducing apparatus
A multi-mode reproducing apparatus having an improved system for positioning the viewing and projection elements therein for purposes of moving original exposure. Variable magnification copying is...
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3972056 |
Varifocal lens assembly
A varifocal lens assembly of a type including at least two lens groups, a first lens group being axially movable parallel to the optical axis of the varifocal lens assembly for varying the focal...
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3967896 |
Variable edge fadeout apparatus for electrostatic reproduction machines
An imaging lens system for electrostatic type reproduction machine or copiers utilizing a zoom lens effective to provide, within the magnification limits of the lens, infinitely variable image...
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3963343 |
Camming systems
A cam system to drive an oscillating mirror used to keep the movement images projected onto the moving drum of a xerographic reproduction machine in register. The cam system uses a cam, a cam...
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3947188 |
Variable conjugate optical system
An optical system for projecting an image of an object, operating between fixed object and image planes. Both the object conjugate and the image conjugate are variable to vary the magnification in...
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3946222 |
Automatic focus with variable magnification
A system for automatically focusing images of different magnifications to be reproduced onto a light sensitive medium. First and second optical patterns of a wavelength to which the light sensitive...
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3917393 |
Varioslit
An optical apparatus comprising an image-forming arrangement for projecting an image of an illuminated object onto an image plane, the image-forming arrangement having a plurality of magnification...
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3901593 |
Copying machines of the variable magnifying power type
In a copying machine of the type comprising an original supporting member, and a variable magnifying power type optical system including a projection lens for projecting the light image of an...
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3901586 |
Device for varying magnification produced by an optical system
A device comprising a lens movable in the direction of its optical axis, and a reflector disposed in an inclined position on the optical axis of the lens and movable therealong, the lens and the...
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3897148 |
Optical scanning system
A multiple carriage optical scanning system scans a stationary planar object onto a moving photoreceptive surface at a selected one of a plurality of magnification settings and locates the image at...
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3865482 |
ELECTROSTATOGRAPHIC COPYING MACHINE
An electrostatographic reproduction machine for producing permanent copies of engineering drawings or the like. A photoconductive drum is rotated past various processing stations including a...
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3837743 |
DUPLICATION MAGNIFICATION VARIABLE DEVICE FOR USE IN A DUPLICATOR
The device comprises a movable mirror which forms part of an optical system, light path changing mirrors adapted to integrate reflected light from the movable mirror, and a lens disposed in a light...
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3833296 |
OPTICAL SCANNING SYSTEM FOR PHOTOCOPYING
An electrophotographic copying apparatus having a movable mirror system for stripwise scanning an original laid on a support and directing the resulting light image stripwise via a stationary...
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3829209 |
IMAGE REGISTRATION IN A MULTIPLE MAGNIFICATION PHOTOCOPYING SYSTEM
A xerographic machine with multiple magnification capabilities employs a multiple focus lens system designed to operate under fixed overall conjugate conditions. The lens system is supported for...
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3778147 |
ELECTROSTATIC REPRODUCTION MACHINE HAVING SELECTABLE MAGNIFICATION RATIOS
Apparatus for regulating the magnification ratio between a copy produced by an electrostatic reproduction machine and the original document from which the copy is produced is provided in accordance...
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3733128 |
ELECTROPHOTOGRAPHIC MICROFILM RE-ENLARGING APPARATUS
This invention relates to an electrophotographic microfilm re-enlargement apparatus comprising, for optical projection of a negative, an optical system including a plurality of lens means...
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3728020 |
APPARATUS AND METHOD OF COPYING ON A PLURALITY OF DIVERSE COPY MEDIA
Apparatus and method of copying original documents in which the document to be copied is transported along a document feed path to a position for exposure. Different type copies are produced on...
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3711199 |
VARIABLE FOCAL LENGTH OPTICAL SYSTEM FOR PHOTOCOPYING MACHINE
A variable magnification optical system for a photocopying machine wherein a variable lens interposed between an original holder and a copy paper holder spaced apart from the original holder by a...
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3709602 |
OPTICAL PATH LENGTH COMPENSATION IN A COPIER
An original placed on a transparent flat base is scanned by a rotary reflection mirror which directs light via a focusing lens and a second reflection mirror onto a photosensitive material. The...
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3703334 |
ELECTROPHOTOGRAPHIC APPARATUS
The system includes a first mirror for reflecting light images onto the photosensitive member in first magnification and a second mirror selectively movable from an inoperative to an operative...
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3689143 |
REPRODUCING MACHINE
An improved continuous and automatic xerographic reproducing machine that is adapted to create copy on sheet material of one of several sizes. The machine has a plurality of sensing devices...
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3689133 |
OPTICAL SYSTEM HAVING LENS AND TWO MOVABLE MIRRORS
An optical system for photocopiers to project an image from an object plane to an image plane is provided. The optical system includes a lens system and a two-mirror reflecting system embodying two...
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3625608 |
PHOTOGRAPHIC REPRODUCTION APPARATUS WITH AUTOMATIC FOCUSING
Photographic reproduction apparatus with automatic focusing includes a mobile model-carrier member and a mobile image-carrier member, a rigid pivoted coupling lever continuously coupling said both...
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3619052 |
MICROFILM READER PRINTER
This invention is a low-cost microfilm reader printer which uses sheet form print material. The invention utilizes a sheet-feeding mechanism having a compressible dispensing roll in contact with...
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3604795 |
IMAGE PROJECTION SYSTEM
Apparatus is disclosed for projecting an image onto a display surface with varying degrees of magnification and having the capability of selectively projecting various portions of the image. This...
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3598489 |
PROJECTION SYSTEM
A photographic system for projection of images on a continuous flow basis between a medium carrying images and a medium being exposed to them and providing for adjustable magnification or reduction...
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3591283 |
ELECTROPHOTOLUMINESCENT PRINTING PROCESS
Systems employing electrophotoluminescent panels to obtain reproductions of originals, which systems include the steps of exciting a layer of an electrophotoluminescent material optically and with...
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3576368 |
IMAGING SYSTEM
An imaging system having moving optical apparatus for imaging an object on an image receptor, one of which, i.e. the object or the receptor, is also moving and the other is stationary during the...
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3572924 |
COPYING APPARATUS
A copying apparatus including an optical system for reproducing an original on a copying paper, each of the original and the copying paper having its one edge located at a definite position. The...
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3545857 |
VARIABLE MAGNIFICATION EXPOSURE DEVICE FOR A REPRODUCTION APPARATUS
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3507576 |
SYSTEM FOR PROVIDING DIFFERENT MAGNIFICATION RATIOS IN PHOTOGRAPHIC COMPOSING APPARATUS
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3498712 |
ELECTROSTATIC IMAGING
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3437410 |
PHOTOCOPYING APPARATUS
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3421815 |
STRUCTURE FOR AUTOMATICALLY FOCUSING A PROJECTOR
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3387534 |
Automatic focusing device
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3364815 |
Automatic focus system
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