US5255114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High resolution scanner
Assignee: Eastman Kodak Co
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Filing: 1993-02-16
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Granted: 1993-10-19
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Expires: 2013-02-16
Abstract
Abstract A high resolution scanner is disclosed which is adapted to digitally record an image from photographic film. The scanner comprises a folded integrating sphere which projects illumination on the film as the film is moved relative to the integrating sphere. Light transmitted through the film is directed to a photodetector by an optical system. In order to produce an aberration-free image on the photodetector, the illumination projected on the film is in the form of an arc, and a unit magnification optical system transmits light to a photodetector having image sensor elements arranged in an arc.
Inventors
- 👤 David Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:43
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/024; H04N1/028; H04N1/02815; H04N1/0282; H04N1/0284; G; G02; G02B; G02B17/00; G02B17/02; G02B17/06; G02B17/0605; G02B17/0615; H04N2201/00; H04N2201/04; H04N2201/0402; H04N2201/0424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A scanner comprising: illumination means for irradiating a receiving medium having an image thereon; means for producing relative movement between said illumination means and said receiving medium; detection means for receiving radiation from said receiving medium and for producing an electrical signal representative of the image on said receiving medium; and optical means disposed in an optical path between said receiving medium and said detection means for forming an image on said detection means which is the same size as the image on said receiving medium, said optical means including a convex mirror and a concave mirror.
Claim 2
Dependent Claim
97 words
A scanner comprising: illumination means for irradiating a receiving medium having an image thereon; means for producing relative movement between said illumination means and said receiving medium; detection means for receiving radiation from said receiving medium and for producing an electrical signal representative of the image on said receiving medium; and optical means disposed in an optical path between said receiving medium and said detection means for forming an image on said detection means which is the same size as the image on said receiving medium, said optical means including a convex mirror and a concave mirror.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-10-18 | 1997-04-19 | 1997-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-10-18 | 2001-04-19 | 2001-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-10-18 | 2005-04-19 | 2005-10-19 | $7700.00 | Window Closed / Lapsed |