Patent US5247174A successfully refreshed from Google Patents.
US5247174A
Expired / Lapsed
US
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Laser scanning apparatus having a scanning beam and a reference beam
Assignee: Kodak IL Ltd
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Filing: 1991-04-25
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Granted: 1993-09-21
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Expires: 2011-04-25
Abstract
Abstract Laser scanning apparatus comprising stationary optical laser source apparatus for producing a scanning beam and a reference beam, beam delivery apparatus for delivering the scanning beam onto a surface to be scanned, beam position detector apparatus for measuring the position of the scanning beam by sensing the position of the reference beam and fiber optic apparatus for delivering the scanning beam and the reference beam from the optical laser source apparatus to the beam delivery apparatus.
Inventors
- 👤 Dov Berman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:18
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/047; G; G02; G02B; G02B26/00; G02B26/08; G02B26/10; G02B26/103; G02B26/12; G02B26/123; H04N1/10; H04N1/1008; H04N1/1013; H04N1/113; H04N1/1135; H04N2201/00; H04N2201/024; H04N2201/02406; H04N2201/02439; H04N2201/02441; H04N2201/02443; H04N2201/04; H04N2201/047; H04N2201/04701; H04N2201/0471; H04N2201/04712; H04N2201/04729; H04N2201/04731; H04N2201/04734; H04N2201/04744; H04N2201/04753; H04N2201/04758; H04N2201/0476; H04N2201/04765; H04N2201/04767; H04N2201/04768; H04N2201/04772; H04N2201/04789; H04N2201/04791; H04N2201/04794; H04N2201/04796; H04N2201/04798
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
124 words
Laser scanning apparatus comprising: a stationary optical laser source for producing a scanning beam and a reference beam; at least one fiber optic lightguide; a beam delivery system; and a beam position detector and corrector system; wherein said at least one fiber optic lightguide is operative to deliver said scanning beam and said reference beam from said optical laser source to said beam delivery system; wherein said beam delivery system is operative to deliver said scanning beam to a surface to be scanned and said reference beam to said beam position detector and corrector system; and wherein said beam position detector and corrector system is operative to measure and correct a position of said scanning beam by sensing a position of said reference beam.
Claim 2
Dependent Claim
124 words
Laser scanning apparatus comprising: a stationary optical laser source for producing a scanning beam and a reference beam; at least one fiber optic lightguide; a beam delivery system; and a beam position detector and corrector system; wherein said at least one fiber optic lightguide is operative to deliver said scanning beam and said reference beam from said optical laser source to said beam delivery system; wherein said beam delivery system is operative to deliver said scanning beam to a surface to be scanned and said reference beam to said beam position detector and corrector system; and wherein said beam position detector and corrector system is operative to measure and correct a position of said scanning beam by sensing a position of said reference beam.
Claim 3
Dependent Claim
27 words
Laser scanning apparatus according to claim 1 and also comprising motor means for translation of said beam delivery system with respect to said surface to be scanned.
Claim 4
Dependent Claim
30 words
Laser scanning apparatus according to claim 1 and also comprising means for adjusting the intensity of said scanning beam as a function of its relative position along a scanning axis.
Claim 5
Dependent Claim
22 words
Laser scanning apparatus according to claim 1 and also comprising means for synchronizing data flow with said position of said scanning beam.
Claim 6
Dependent Claim
24 words
Laser scanning apparatus according to claim 1 and wherein said at least one fiber optic lightguide comprises at least one single-mode fiber optic lightguide.
Claim 7
Dependent Claim
60 words
Laser scanning apparatus according to claim 5 and wherein said beam position detector and corrector system includes detector means for detecting said position of said reference beam, actuator means attached to exit ends of said at least one fiber optic lightguide and closed loop control means for controlling said actuator means in response to measurements produced by said detector means.
Claim 8
Dependent Claim
16 words
Laser scanning apparatus according to claim 6 and wherein said actuator means are piezoelectric actuator means.
Claim 9
Dependent Claim
60 words
Laser scanning apparatus according to claim 1 and wherein said beam position detector and corrector system includes detector means for detecting said position of said reference beam, actuator means attached to exit ends of said at least one fiber optic lightguide and closed loop control means for controlling said actuator means in response to measurements produced by said detector means.
Claim 10
Dependent Claim
16 words
Laser scanning apparatus according to claim 8 and wherein said actuator means are piezoelectric actuator means.
Claim 11
Dependent Claim
27 words
Laser scanning apparatus according to claim 8 and also comprising motor means for translation of said beam delivery system with respect to said surface to be scanned.
Claim 12
Dependent Claim
28 words
Laser scanning apparatus according to claim 8 and wherein said closed loop control means also include pre-positioning means for counteracting known initial variations in said beam delivery system.
Claim 13
Dependent Claim
30 words
Laser scanning apparatus according to claim 8 and also comprising means for adjusting the intensity of said scanning beam as a function of its relative position along a scanning axis.
Claim 14
Dependent Claim
22 words
Laser scanning apparatus according to claim 8 and also comprising means for synchronizing data flow with said position of said scanning beam.
Claim 15
Dependent Claim
21 words
Laser scanning apparatus according to claim 8 and wherein said fiber optic lightguide comprises at least one single-mode fiber optic lightguide.
Claim 16
Dependent Claim
18 words
Laser scanning apparatus according to claim 8 and wherein said at least one actuator comprises piezoelectric actuator means.
Claim 17
Dependent Claim
73 words
Laser scanning apparatus comprising: a stationary optical laser source for producing a scanning beam; a fiber optic lightguide; a beam delivery system; and a beam position detector and corrector system; wherein said fiber optic lightguide is operative to deliver said sanning beam from said optical laser source to said beam delivery system, and wherein said beam position detector and corrector system is operative to measure and correct a position of said scanning beam.
Claim 18
Dependent Claim
73 words
Laser scanning apparatus comprising: a stationary optical laser source for producing a scanning beam; a fiber optic lightguide; a beam delivery system; and a beam position detector and corrector system; wherein said fiber optic lightguide is operative to deliver said sanning beam from said optical laser source to said beam delivery system, and wherein said beam position detector and corrector system is operative to measure and correct a position of said scanning beam.
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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) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |