Hewlett-packard Company

Jerry L Bybee

Dean C Buck

Steven G Henry

David W Boyd

Kevin J Youngers

Michael J Steinle

Gene Pien

A photoelectric imaging device is disclosed in which the object to be imaged is illuminated by light from an external light source, such as a video display. Use of an external light source eliminates the need for a light source and its accompanying power supply to be located within the photoelectric imaging device. The portability of the photoelectric imaging device is thus enhanced. When a video display is used as the external light source, an external computer, to which the video display may be attached, may accomplish the processing required for imaging. This allows further reduction in the size, weight, complexity and cost of the photoelectric imaging device by eliminating the need for a processor and a data storage device to be located within the photoelectric imaging device.

Photoelectric imaging apparatus and method of using

A multiple resolution scanner device for scanning an object may comprise a first optical wave guide bundle having a light input end, a light output end, and a first reduction ratio associated therewith. The light input end of the first optical wave guide bundle is arranged to receive image light from the object being scanned. A second optical wave guide bundle having a light input end and a light output end has a second reduction ratio associated therewith that is different than the first reduction ratio associated with the first optical wave guide bundle. The light input end of the second optical wave guide bundle is arranged to receive image light from the object being scanned. A detector positioned adjacent the light output ends of the first and second optical wave guide bundles receives image light from the light output ends and produces an image data signal related to image light received from the light output ends. An optical wave guide selection apparatus operatively associated with the scanner device selects an optical wave guide bundle, the image light from which is used by the detector to produce the image data signal.

Optical scanner having multiple resolutions

A line-focus system with a curved fluorescent bulb for directing light from the curved fluorescent bulb toward the scan line in the line-focus system. The curved fluorescent bulb is shaped in such a manner that the light intensity across the photosensor line array in the line-focus system is relatively uniform and the length of the light bulb is shorter than straight light bulbs with end sockets at both ends of the light bulb. The curved fluorescent bulb may be C-shaped, U-shaped or towel bar-shaped.

Optical scanner with a curved bulb

A scanning apparatus having a linear photosensor, an imaging assembly, and a scanning displacement assembly adapted for producing relatively constant rate linear displacement between an imaged object and the imaging assembly to cause scan line portions of the object to be sequentially imaged on the linear photosensor device and an image registration holding assembly associated with the scanning displacement device to cause an image from each different scan line portion on the object to be temporarily held in registration with the linear photosensor.

Color optical scanner with image registration holding assembly

A color optical scanner for generating data representative of a color image of an object which is scanned including: a linear sensor array located on an image plane for generating a data signal indicative of the intensity of light impinged thereon and having sensor sampling intervals of a predetermined length; an imaging assembly for imaging a moving scan area on the object containing a plurality of scan lines on an image plane and for defining an imaging light path extending from the scan area on the object to the image plane; a color wheel positioned along the imaging light path and having an axis of rotation extending transversely of the light path and having a plurality of faces adapted to be sequentially rotated into intersecting relationship with the light path; a plurality of the faces including a plurality of filter portions of different spectral range transmissibility which are sequentially rotated into intersecting relationship with the light path during different color imaging intervals having durations equal to the sensor sampling interval.

Color optical scanner with rotating color filter assembly

A sheet feeding apparatus for sequentially moving sheets into a predetermined registration position with a sheet support surface of an associated optical imaging device including a sheet displacement assembly for engaging and guidingly displacing the sheet along a predetermined displacement path having an upstream end and a downstream end; an abutment surface disposed along the displacement path in spaced relationship from the sheet support surface; and a drive for driving the displacement assembly for moving the sheet downstream a predetermined distance along the path past the abutment surface, then moving the sheet upstream into edge aligning engagement with the abutment surface and then moving the sheet downstream a predetermined distance along the path.

Growing community of inventors

Loveland, CO, United States of America

Jerry L Bybee