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7050716 |
Exposure device
In order to provide an exposure device by which aligning of an exposure pattern is realized when manufacturing a build up wiring board or the like, an exposure device which exposes a photosensitive...
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6832045 |
Exposure device
In order to provide an exposure device by which aligning of an exposure pattern is realized when manufacturing a build up wiring board or the like, an exposure device which exposes a photosensitive...
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6421507 |
Method of producing a screen for a display device, screen for a display device produced by means of said method and display device provided with said screen
A screen having a dotted structure of apertures in a black matrix and electroluminescent material in the apertures is produced on a panel for a color display device. A photosensitive material on...
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5812892 |
Multi-beam image forming system
Disclosed is a multi-beam image forming system, which has a light emitting unit including a plurality of light sources emitting a plurality of beams, and a table carrying a photosensitive film on...
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5664251 |
Method of making an aperture plate for a multibeam pattern drawing apparatus
For an aperture plate to be used to form dot images of a two dimensional aperture pattern by projection through an imaging optical system in a normal direction, a pattern of markings in ideal...
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5589900 |
Virtual drum imagesetter
An imagesetter of the "internal drum" type for producing an image on a flexible section of photosensitive material. The section of material has a first end, an opposite second end and substantially...
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5317338 |
Visual measurement technique and test pattern for aperture offsets in photoplotters
A test pattern including an aperture image and a line image including a plurality of parallel lines, forming a measurement graticule, overlapping the aperture image, permits determination of...
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5168304 |
Exposure apparatus
An exposure apparatus for selectively exposing the peripheral portion of a circular substrate such as wafer for integrated circuit manufacturing purposes. In this exposure apparatus, the spot of an...
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RE33931 |
Laser pattern generating system
In this laser pattern generator, plural laser beams are arranged in a closely spaced, noninterfering array. The beams are concurrently deflected across a region of the target surface by an...
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5051762 |
Production of images using an array of light emitting diodes
Apparatus and imaging method in which an LED exposure apparatus having an array of light emitting diodes stationed in a light exposing relationship to a photosensitive material to be imaged is...
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5017949 |
Table assembly for pattern drawing apparatus
A table assembly that is simple in construction and which yet resists yawing in an effective way and is adapted for use with a scanning pattern drawing apparatus which involves continuous movements...
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4958233 |
Digital and analog image recording apparatus
A multi-mode image recording apparatus which can record on a common photo-sensitive sheet either an analog color image produced by reflecting white light off an original or a digital color image...
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4940641 |
Aperture disc and method of making the same
An indexing system for selectively orienting one of a series of arcuately oriented different sized and/or shaped apertures formed around an aperture disc used in a photohead for exposing upon a...
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4926348 |
Plotting apparatus using a light source moved on a photosensitive surface
A plotting implement for creating a record on a photosensitive surface. The plotting implement includes a contact tip for contacting and for moving between different positions on the surface, the...
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4899175 |
Recording system with illumination means utilizing a plurality of fluorescent substances
An illumination apparatus adapted for illuminating a subject with light comprises a plurality of fluorescent substances each having a different spectral characteristic, a drive device for...
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4866593 |
Photosensitive printing apparatus
A printing apparatus for use in a printer with a photo-sensitive drum. The printing apparatus includes a spotlight source for generating a light provides essentially a point source. A photo-optical...
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4851656 |
Method and apparatus for enhancing optical photoplotter accuracy
A novel method and apparatus for improving the overall accuracy and repeatability of an optical photoplotter which is characterized by a controller which determines an image position error from...
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4849777 |
Lamp driver scheme
A system for projecting a spot of radiant energy includes a lamp for projecting a light spot onto a surface and includes means for providing a selection of differently sized spots. Drive means...
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4841316 |
Photohead system for positioning an aperture wheel and method of making an aperture disc
An indexing system for selectively orienting one of a series of arcuately oriented different sized and/or shaped apertures formed around an aperture disc used in a photohead for exposing upon a...
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4835545 |
Modulating laser intensity in a laser printer proportionately to the velocity of the photoconductive media
A photosensitive, photoconductive media moving in a first direction relative to a laser light beam scanning in a second direction, transverse to the first direction, incurs velocity variations....
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4815721 |
Film loader and unloader mechanism
A loader and unloader mechanism is attached to a standard photoplotter equipment. The mechanism performs a sequence of operations for loading and unloading sheets of film onto and from respectively...
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4816847 |
High resonance drive table and method of making a planar work surface
A highly accurate positioning system used in connection with the photoplotter assembly employing a dual axis drive system having low mass and low inertia components. The drive elements of the...
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4812861 |
Optical laser beam control device for printer
A laser beam control device related to the present invention includes an optical filter in the path of propagation of the laser beam from a laser light source to an image forming surface to form an...
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4809028 |
Photoplotting apparatus
A light pen for converting a conventional graphics plotter into a photoplotter includes a housing containing an electrically powered light source, a battery and a normally open switch. The housing...
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4797696 |
Beam splitting apparatus
An apparatus for splitting radiant energy beams produced by a laser or other light source. The apparatus comprises a plurality of mirrors, each aligned to reflect a beam or plurality of beams from...
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4760412 |
Apparatus and method for exposing lines on a photosensitive surface
In a photoplotting apparatus and method using a flash lamp to expose a line on a photosensitive surface, and wherein the photohead has a number of apertures of different size to vary the width of...
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4757327 |
Photoplotter radiant source output equalization method
A computer controlled photoplotter includes a row of LED's mounted to a light head positioned parallel to the film width. The light head is part of a light head assembly which is moved parallel to...
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4751522 |
Photoplotter mounting head assembly
A computer controlled photoplotter includes a row of LED's mounted to a light head positioned parallel to the film width. The light head is part of a light head assembly which is moved parallel to...
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4748456 |
Photoplotter focus method
A computer controlled photoplotter includes a row of LED's mounted to a light head positioned parallel to the film width. The light head is part of a light head assembly which is moved parallel to...
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4675702 |
Photoplotter using a light valve device and process for exposing graphics
A photoplotter supports a sheet of photosensitive material for exposure by an associated light source. A light valve device interposed between the light source and the sheet has a main face...
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4668080 |
Method and apparatus for forming large area high resolution patterns
A high resolution periodic pattern is formed in a layer of a photosensitive material by means of a beam of light and a lenticular array formed of a plurality of lenslets. The lenticular array is...
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4653882 |
Device for exposing discrete portions of a photosensitive surface by means of a light beam
The device comprises a lamp which directs a light beam to a photosensitive surface through symbols contained on a rotating disc, along a straight axis without changement of direction, the distance...
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4630070 |
Laser beam recording apparatus
A laser beam recording apparatus having a parallel-plane plate, such as a dust proof glass plate or a light controlling filter, which is disposed across the optical path of the laser beam. The beam...
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4620200 |
Scan beam velocity-compensation recording system
A recording medium scanning system includes a light source for generating a scanning light beam, a light modulator for modulating the light beam with a modulating signal, and a scanner for scanning...
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4613877 |
High resolution laser printer
A high resolution laser printer utilizes a first cylindrical lens to focus a laser beam in the sagittal direction prior to the facets of a rotating polygon. The light reflected from the polygon is...
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4589746 |
Dual-axis, single mirror interferometer measuring system
A photoplotter having a photohead that moves in one coordinate direction and a film table movable in another coordinate direction employs a dual-axis, single mirror and reflector interferometer...
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4589745 |
Geometric LED layout for line exposure
A line exposure array of light emitting diodes arranged in spaced apart relationship with respect to each other along the longitudinal axis thereof and geometrically configured to provide a...
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4573779 |
Variable size circular aperture camera
Apparatus is disclosed for exposing circular patterns of light on a photosensitive surface by providing, spaced from the surface, a lengthwise variable light source focusable on the photosensitive...
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4570059 |
Automatic lens focus with respect to the surface of a workpiece
An automatic focus control device for adjusting the height of a lens above a surface of a workpiece used in an exposure apparatus for exposing the sample with a light beam including a first light...
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4566015 |
Image recording apparatus with adjustable mask
In an image recording apparatus of the type responsive to electrical signal input information representative of a select image for line scanning a photosensitive medium with a linear array of...
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4528573 |
Optical print head with removable mounting
An optical printing head for recording graphic and text information line by line, including a plurality of juxtaposed, actuatable optical components, including picture dot elements, from which...
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4516842 |
Aperture wheel
An aperture wheel having a circular base assembly which is adapted to be mounted for rotation about its central axis and a circular disc assembly which is removably and concentrically mounted on...
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4512642 |
Automatic focusing apparatus in optical drawing machine
Automatic focusing apparatus in an optical drawing machine, comprising a drawing optical means having a dichroic mirror which transmits light for drawing and reflects light for detecting the focus...
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4500182 |
Photoplotter
A photoplotter wherein a relative movement is produced between a photosensitive media and a radiant energy pattern generated on the media. The relative movement is in accordance with a desired...
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4465350 |
Method and device for inspecting micromask patterns
Inspection of micromask patterns occurs by both moving an inspecting laser beam relative to a micromask and varying the intensity of said beam in the same manner that occurs during pattern...
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4464030 |
Dynamic accuracy X-Y positioning table for use in a high precision light-spot writing system
A commercial X-Y positioning table is modified, to limit its dynamic X-positioning error to less than ±0.05 micrometer at rates of speed in the Y direction of up to 20 millimeters per second, by...
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4458994 |
High resolution optical lithography method and apparatus having excimer laser light source and stimulated Raman shifting
An optical lithography method and apparatus in which a pulsed excimer laser produces at least one fundamental output which is directed to expose a photosensitive medium. The output is highly...
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4458254 |
Low inertia plotter
A low inertia plotter having a carrier consisting solely of a relatively thin sheet of support material defining a surface for carrying a sheet of plotting media and supported by an air bearing for...
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4452528 |
Optical reproduction method and apparatus
To provide line or strip form illumination of an object or image carrier, such as a drawing, design, or written material, for projection or copy machine purposes, a point source of light such as a...
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4453083 |
Apparatus for the determination of the position of a surface
Apparatus is disclosed for determining the position of a surface in which radiation from an optical radiant source is applied to the surface and, by means of a lens system, an image of the...
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