Radiant energy – Photocells; circuits and apparatus – Optical or pre-photocell system
Patent
1995-10-31
1998-01-20
Westin, Edward P.
Radiant energy
Photocells; circuits and apparatus
Optical or pre-photocell system
358487, 358506, H04N 104
Patent
active
057104255
ABSTRACT:
An apparatus providing the capability to scan media at different resolutions is presented. The apparatus comprises an image area which is disposed between scanner lid and a scanner base, the lid is pivotally attached to the base to provide easy access to the image area. A light source resides within the scanner lid. Two separate light paths are provided, the first fight path is reflected off opaque targets, through the lid before entering the base and onto an array of photosensitive devices. The second light path is passed through transparent media, into the base and onto the array. First and second focusing lenses are provided, each for a light path. The focusing lenses provide two separate magnifications which yield two separate resolutions.
REFERENCES:
patent: 5113268 (1992-05-01), Yoshida et al.
patent: 5296943 (1994-03-01), Goebel et al.
patent: 5430289 (1995-07-01), Erickson et al.
patent: 5532846 (1996-07-01), Brook et al.
patent: 5574274 (1996-11-01), Rubley et al.
Bloom Daniel Maack
McConica Charles H.
Stavely Donald James
Giles Alan L.
Hewlett--Packard Company
Murphy Patrick J.
Westin Edward P.
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