Symbol Technologies, LLC

Microvision, Inc.

Richard Isaac

Raj Bridgelall

Howard Shepard

Joseph Katz

Duanfeng He

Joel Kahn

Vladimir Gurevich

David Tsi

Boris Metlitsky

Mark Krichever

Sundeep Kumar

Anthony Biuso

Paul Poloniewicz

Paul Dvorkis

Edward D Barkan

Howard M Shepard

Joseph M Katz

Miklos Stern

Simon Bard

Chinh Tan

Frederick F Wood

Mark J Krichever

Dmitriy Yavid

Yajun Li

Ron Goldman

David P Goren

Carl D Wittenberg

Narayan Nambudiri

Vladimir P Gurevich

Daniel R McGlynn

Harold Charych

Jerome Swartz

John Barile

Henry Grosfeld

Askold Strat

Robert A Doran

Henry Grossfeld

Yuri Gofman

Mitch Maiman

Mehul M Patel

James R Giebel

Joseph D Giordano

Glenn S Spitz

Patrick J Wallace

Kevin Cordes

Thomas Mazz

Paul R Poloniewicz

Steven M Chew

Frederic Heiman

Alex Breytman

Anthony D Biuso

Stephen M Osterweil

Ophir Chernin

Avi Korenshtein

Mark E Drzymala

Igor R Vinogradov

Ian R Jenkins

David Tsi Shi

Peter Fazekas

Hal Charych

Joseph Campanelli

Chin-Hung Jwo

William D Snyder

Lisa Courtney

Mark Dryzmala

Thomas F Boehm

Richard Wienecke

Theodore Koontz

Narayan Nambudri

Eugene B Joseph

Emanuel Marom

Bradley S Carlson

Robert Sanders

Philip W Swift

Timothy B Austin

Thomas D Bianculli

Altaf Mulla

Jay Paul White

Michael S Slutsky

Edward Douglas Hatton

Margaret L Hetfield

Brad Carlson

Dmitry Yavid

Ed Barkan

Tsi David Shi

Joseph Boriotti

Alexander Breytman

Vikram Bhargava

Richard A Migliaccio

John Lert

Vincent P Luciano

Lisa Fan

Richard Rizza

Gregg A Marwin

Christina S Barkan

Ralph Rosa

Walter Preuss

Patrick J Salatto

Varl Gurevich

Costanzo Slashed diFazio

Greg Martino

Menashe Benzalel

Jay Greenrose

Robert Fuller

Ralph Thomas

Leonard H Goldner

A laser projection device suitable for displaying full color images is disclosed. The LPD includes a variety of techniques for modulating laser beams produced by one or more lasers with image data to controllably produce the image using a modified raster scan.

Method and apparatus for controllably modulating a laser in a laser projection display

A method and apparatus are provided to provide a laser projection display (LPD).

Color laser projection display

A plurality of image projection modules is operative for causing selected pixels in overlapping raster patterns to be illuminated to produce a large size image of high resolution of VGA quality in monochrome or color. The selected pixels in an overlap region of the patterns are illuminated at a lesser intensity to provide uniform brightness over the image. Multiple single mode lasers, or a multimode laser with an aperture stop, are employed to increase laser output power. Speckle noise is reduced by controlling the optical transmission characteristic of a projection screen. Three-dimensional images are generated by moving the screen. Cross-coupling between drive and feedback mechanisms in image projection is reduced for better image quality.

Large size image projection

A method and apparatus are provided to controllably reduce power of a laser projection display (LPD). Light is scanned from a laser onto a viewing surface to produce an image thereon, and power used by the laser is reduced used while scanning at least a portion of the viewing surface.

Method and apparatus for conserving power in a laser projection display

A laser projection device (LPD) suitable for displaying color images is disclosed. The LPD is used to excite various photoluminescent materials located on a display screen so as to produce multi-color displays. Additionally, the screen may be movably mounted so as to reduce laser speckling.

Method and apparatus for controllably producing a laser display

A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be illuminated to produce an image of high resolution of VGA quality in color.

Color image projection arrangement and method

A method and apparatus are provided for controlling the operation of a Laser Projection Display (LPD). Generally, the LPD is comprised of a laser, an optical system and a controller. The laser is adapted to emit a beam of laser light. The optical system is adapted to scan the beam of laser light on a display surface in a two-dimensional raster pattern. The controller is adapted to control the rate at which the laser beam is scanned to produce regions of varying resolution on the display surface. The controller is also adapted to present laser light onto the display surface within only selected portions of the two-dimensional raster scan pattern so that spaced apart image regions may be created.

Laser projection display

An arrangement for determining light beam position in an electro-optical reader, image projector and like devices includes a drive for moving a scanning light beam at a scan frequency across a target as a scan line, and an electro-optical feedback assembly operatively connected to the drive, for optically detecting scan line position during beam movement, and for generating a feedback signal at the scan frequency, the feedback signal being indicative of the scan line position. A feedback coil in the drive is eliminated to avoid electromagnetic coupling between multiple coils in the drive.

Monitoring light beam position in electro-optical readers and image projectors

An image projection system projects an image on a projection screen having a phosphor for converting incident violet light into green light which, together with red and blue light, creates the image in full color. The screen includes an apertured mask having apertures filled with the phosphor, or a phosphor plate in contact with the mask and having lenslets extending through and past the apertures.

Color image projection system and method

An optical scanner for reading indicia having areas of different light reflectivity, such as bar code symbols includes a stationary, multi-surface, fold mirror having a first surface of a first aplanar profile and a second surface of a second, different aplanar profile.

Electro-optical scanner having stationary, multi-surface mirror having surfaces with aplanar profiles

A method and apparatus are provided to controllably compensate for distortions in an image produced by an LPD, where the distortion arises from the shape and/or angle of the viewing surface relative to the LPD. For example, the LPD can determine the angle of the viewing surface relative to the LPD and then adjust the horizontal and vertical scan mechanisms to return the image to its original configuration, such as rectangular.

Method and apparatus for controllably compensating for distortions in a laser projection display

A method and apparatus are provided to capture images using a laser projection display (LPD). In a full color LPD camera, three lasers (red, blue, and green) are deployed to scan an image and receive reflected laser light therefrom. The reflected laser light may be analyzed and assembled into a picture. The LPD may also be used to display the picture, to operate as a viewfinder, to print the picture, to operate as a range finder, and the like.

Method and apparatus for capturing images using a color laser projection display

A method and apparatus are provided to compensate for variations in the alignment of a plurality of lasersA controllervaries the time at which the lasersare energized so that the laser light emitted therefrom is reflected from a scanning mirrorat varying times so that each of the beams of light is reflected along a substantially common path and delivered to a substantially common point.

Method and apparatus for aligning a plurality of lasers in an electronic display device

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Stony Brook, NY, United States of America

Paul Dvorkis