Hewlett-packard Development Company, L.P.

Hewlett-packard Company

Other

Hughes-jvc Technology Corporation

Jack H Schmidt

Mohammad M Samii

Winthrop D Childers

Steven Warren Steinfield

Noah C Lassar

Mark Andreas Van Veen

William James Allen

David Alvin Tyvoll

Matthew David Giere

James R Cole

Mark Majette

James P Dickie

Dennis J Schissler

Alpha N Doan

Wayne Richard

Craig A Maurer

John Herman Arterberry

Jon Lee Zimmerman

Scott F Williams

Robert A Edwards

Robert D Haselby

Javier A Ruiz

Rodney D Sterling

Morad M Samii

Curtis J Behrend

Roger Hollister

Joseph M Haggerty

Ned Nestorovic

Ross Tsukashima

An optical system, used for scanning, forms an image using reflective optical surfaces. The system may be telecentric, and may form an image that is reduced in size as compared with the scanned original. Several image-forming optical channels may be combined to form a page-wide scanning array.

Segmented reflective optical system

An unbacked transport and conditioning printing system for printing a pattern on a fabric is disclosed. The system includes a fabric characterization and tension control subsystem for gathering information on variations in the fabric and an irregularity detection subsystem for detecting irregularities in the fabric, as well as, crease detection and removal. The fabric passes through a fabric drying and conditioning subsystem for characterization of the fabric. The system also includes a fabric control subsystem for advancing the fabric through a print zone, where a pattern is printed on an unbacked fabric. The fabric is transported through a drying and post-processing subsystem and a closed-loop color control subsystem.

Unbacked fabric transport and condition system

A dust tolerant scanner without a transparent plate to support objects scanned by its media scan assembly. Other dust or debris collecting surfaces in the optical path of the scanner are positioned as far away as possible from an object focal plane of the media scan assembly. The media scan assembly includes upper and lower document feeder portions which define a media path adjacent to a reference surface of the upper portion. The lower document feeder portion includes a media conformance member which positions pieces of media against the reference surface as the pieces of media are advanced along the media path. The media conformance member includes ramp portions and an aperture which provides an optical path between the object focal plane and a sensor focal plane within the scanner.

Dust tolerant windowless scanner

A light-filtering element for a display device is provided. The element includes at least one filter having a chamber with a filtering fluid, the filtering fluid selectively disposed in an optical path, and a liquid motion actuator selectively configured to move the filtering fluid substantially into and out of the optical path.

Color-generating device and display system

A filter for a display system is provided which includes a fluid chamber having a selectively moveable filtering fluid, plural electrodes being coupled with the fluid chamber to accommodate establishment of an electric field whereby the filtering fluid may be selectively positioned in an optical path.

Filter for display system

A display system is provided, the system including an illumination source configured to produce light and direct light along an optical path, a plurality of color filters disposed in the optical path configured to generate a plurality of colored light beams, and a spatial light modulator disposed in the optical path adapted to receive and adjust the colored light beams to produce an image.

Display system with low and high resolution modulators

Filter for a display system

A projector that has a narrow-spectrum light source to complement a broad-spectrum light source is disclosed. The broad-spectrum light source has a broad spectrum. The narrow-spectrum light source has a narrow spectrum complementing the broad spectrum of the broad-spectrum light source.

Projector with narrow-spectrum light source to complement broad-spectrum light source

The invention is a system for scanning a document. A light source illuminates the document; an imager receives light from the document and directs it toward a detector array which produces a corresponding array of electrical signals. The imager has several optical properties that are useful either individually or in combination. The imager is telecentric and thereby ensures that image size and magnification are insensitive to object displacement along the optical axis and image brightness is uniform independent of object off-axis distance. An aspheric element within the imager balances focus variation within the depth of field with spherical aberration and thereby provides nearly uniform image resolution. A diffraction pattern, carried by the imager, corrects for spectral dispersion which occurs when light passes from air into a refractive material. An imager with a reflecting surface provides a system that is subject to little or no chromatic aberration. A solid imager with multiple internal reflecting surfaces in optical series, configured to include the previously mentioned optical properties, also provides for highly stable alignment of reflecting surfaces.

Swath scanning system using an optical imager

Growing community of inventors

Carlsbad, CA, United States of America

Jack H Schmidt