US4918465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-color beam scanner with simultaneous scanning along a plurality of scan lines
Assignee: Fujifilm Holdings Corp
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Filing: 1988-06-10
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Granted: 1990-04-17
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Expires: 2008-06-10
Abstract
Abstract A multi-color beam exposure system produces light of plural colors focused to form a multi-color focused image on the photosensitive material issued around a drum. The exposure system produces a plurality of light beams of each of the multi-colors and focuses each plurality of beams of the same color along the axial direction of the drum to thereby simultaneously scan the photosensitive material along a plurality of scanning lines. To reduce the size and weight of the drum scanner, the light sources producing the multi-color beams are placed remote from the drum and an optical fibers system transmits and focuses the multi-color beams onto the photosensitive material.
Inventors
- 👤 Naoyuki Morita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:28
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/0671; G; G01; G01D; G01D15/00; G01D15/14; H04N1/19; H04N1/191; H04N1/1911; H04N1/1916; H04N1/46; H04N1/50; H04N1/502
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
92 words
In a multi-color beam exposure system in which light of plural colors is emitted and focused to form a multi-color focused image on a photosensitive material would around a drum, the improvement comprising: means for providing a plurality of said multi-color beams focused on said photosensitive material and in the axial direction of said drum to form a plurality of said multi-color beams along each one of a plurality of scan lines in the axial direction of the drum thereby to expose said photosensitive material along a plurality of scan lines simultaneously.
Claim 2
Dependent Claim
92 words
In a multi-color beam exposure system in which light of plural colors is emitted and focused to form a multi-color focused image on a photosensitive material would around a drum, the improvement comprising: means for providing a plurality of said multi-color beams focused on said photosensitive material and in the axial direction of said drum to form a plurality of said multi-color beams along each one of a plurality of scan lines in the axial direction of the drum thereby to expose said photosensitive material along a plurality of scan lines simultaneously.
Claim 3
Dependent Claim
86 words
In a system for developing colors on a color photosensitive material by exposing the photosensitive material along a scanning line to a plurality of light beams each of a different color, a light beam exposure apparatus comprising: means for producing a plurality of light beams of each of said different colors, and means for simultaneously scanning each light beam of the same color along a plurality of different scanning lines of said photosensitive material, thereby to decrease the exposure time completely to expose said photosensitive material.
Claim 4
Dependent Claim
86 words
In a system for developing colors on a color photosensitive material by exposing the photosensitive material along a scanning line to a plurality of light beams each of a different color, a light beam exposure apparatus comprising: means for producing a plurality of light beams of each of said different colors, and means for simultaneously scanning each light beam of the same color along a plurality of different scanning lines of said photosensitive material, thereby to decrease the exposure time completely to expose said photosensitive material.
Claim 5
Dependent Claim
65 words
The system for developing colors on a color photosensitive material according to claim 2 wherein said photosensitive material is wound around a drum and further including means for focusing said plurality of light beams of each of said different colors along the axial direction of said drum, the light beams of different colors being focused on the photosensitive material in the direction of drum rotation.
Claim 6
Dependent Claim
59 words
The color beam exposure system as claimed in claim 1, wherein said means for providing a plurality of said multi-color beams comprises light generating means for generating said multi-color beams remote from said drum, and optical fiber means for transmitting and focusing said multi-color beams onto said photosensitive material thereby to expose said photosensitive material to said multi-color beams.
Claim 7
Dependent Claim
45 words
The color beam exposure system as claimed in claim 4, wherein at least three scan lines are simultaneously scanned with each rotation of said drum, and wherein said plurality of said multi-color beams are formed along each one of said at least three scan lines.
Claim 8
Dependent Claim
62 words
The color beam exposure system as claimed in claim 5, wherein said means for providing a plurality of said multi-color beams comprises orthogonal array means to form said plurality of said multi-color beams along a plurality of scan lines, and wherein said system uses an intermittent sub-scanning feeding process to feed said photosensitive material with respect to a rotation of said drum.
Claim 9
Dependent Claim
62 words
The color beam exposure system as claimed in claim 5, wherein said means for providing a plurality of said multi-color beams comprises oblique array means to form said plurality of said multi-color beams along a plurality of scan lines, and wherein said system uses a continuous sub-scanning feeding process to feed said photosensitive material with respect to a rotation of said drum.
Claim 10
Dependent Claim
30 words
The color beam exposure system as claimed in claim 7, wherein a quantity or level of light of each beam of said plurality of said multi-color beams can be controlled.
Claim 11
Dependent Claim
26 words
The color beam exposure system as claimed in claim 8, wherein said means for providing a plurality of said multi-color beams comprises light emitting diode means.
Claim 12
Dependent Claim
24 words
The color beam exposure system as claimed in claim 8, wherein said means for providing a plurality of said multi-color beams comprises laser diodes.
Claim 13
Dependent Claim
70 words
The system for developing colors on a color photosensitive material according to claim 3 wherein said means for producing a plurality of light beams comprises light generating means for generating said plurality of light beams remote from said drum, and wherein said means for focusing comprises optical fiber means for transmitting and focusing said light beams onto said photosensitive material thereby to expose said photosensitive material to said light beams.
Claim 14
Dependent Claim
49 words
The system for developing colors on a color photosensitive material according to claim 11, wherein at least three scan lines are simultaneously scanned with each rotation of said drum, and wherein said plurality of said light beams are formed along each one of said at least three scan lines.
Claim 15
Dependent Claim
65 words
The system for developing colors on a color photosensitive material according to claim 12, wherein said means for producing a plurality of light beams comprises orthogonal array means to form said plurality of said light beams along a plurality of scan lines, and wherein said system uses an intermittent subscanning feeding process to feed said photosensitive material with respect to a rotation of said drum.
Claim 16
Dependent Claim
65 words
The system for developing colors on a color photosensitive material according to claim 12, wherein said means for producing a plurality of light beams comprises oblique array means to form said plurality of said light beams along a plurality of scan lines, and wherein said system uses an continuous subscanning feeding process to feed said photosensitive material with respect to a rotation of said drum.
Claim 17
Dependent Claim
34 words
The system for developing colors on a color photosensitive material according to claim 14, wherein a quantity or level of light of each beam of said plurality of said light beams can be controlled.
Claim 18
Dependent Claim
26 words
The color beam exposure system as claimed in claim 15, wherein said means for providing a plurality of said light beams comprises light emitting diode means.
Claim 19
Dependent Claim
28 words
The system for developing colors on a color photosensitive material according to claim 15, wherein said means for providing a plurality of said light beams comprises laser diodes.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-16 | 1993-10-16 | 1994-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-16 | 1997-10-16 | 1998-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-16 | 2001-10-16 | 2002-04-17 | $7700.00 | Window Closed / Lapsed |