US3973954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imaging method including exposure of photoconductive imaging member through lenticular lens element
Assignee: Xerox Corp
•
Filing: 1973-12-28
•
Granted: 1976-08-10
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Expires: 1993-12-28
Abstract
Abstract A method is set forth for extending the dynamic range of imagewise exposure systems by transmitting the electromagnetic radiation image through a lenticular lens array and then to a photosensitive surface so that the image at the photosensitive surface is imperfect.
Inventors
- 👤 Lloyd F. Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:56
CPC Classifications
G; G03; G03G; G03G15/00; G03G15/04; G03G15/04027; Y; Y10; Y10S; Y10S430/00; Y10S430/147
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
105 words
A method for extending the dynamic range of an imagewise exposure system comprising the steps of: a. providing a photosensitive imaging member; and b. imagewise exposing said photosensitive imaging member to activating electromagnetic radiation through a lenticular lens array out of focus with said photosensitive imaging member; said lenticular lens providing on said photosensitive imaging member during said imagewise exposure a soft dot pattern wherein about 75% of the photosensitive imaging member area under said lenticule receives shadow information at a density of about 25% of the highlight information density received by the central about 25% of the photosensitive imaging member area under each lenticule.
Claim 2
Independent Claim
105 words
A method for extending the dynamic range of an imagewise exposure system comprising the steps of: a. providing a photosensitive imaging member; and b. imagewise exposing said photosensitive imaging member to activating electromagnetic radiation through a lenticular lens array out of focus with said photosensitive imaging member; said lenticular lens providing on said photosensitive imaging member during said imagewise exposure a soft dot pattern wherein about 75% of the photosensitive imaging member area under said lenticule receives shadow information at a density of about 25% of the highlight information density received by the central about 25% of the photosensitive imaging member area under each lenticule.
Claim 3
Dependent Claim
15 words
The method of claim 1 wherein said lenticular lens array comprises a cylindrical lenticular element.
Claim 4
Dependent Claim
15 words
The method of claim 1 wherein said lenticular lens array comprises a spherical lenticular element.
Claim 5
Dependent Claim
18 words
The method of claim 1 wherein said lenticular lens array is but of contact with said imaging member.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein said photosensitive imaging member is a xerographic photoreceptor.
Claim 7
Dependent Claim
13 words
The method of claim 1 wherein said photosensitive imaging member is also deformable.
Claim 8
Dependent Claim
15 words
The method of claim 1 said photosensitive imaging member is a silver halide photographic film.
Claim 9
Dependent Claim
14 words
The method of claim 4 wherein said photosensitive imaging member is a xerographic photoreceptor.
References Cited (Backward Citations)
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US3764311A
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US3817748A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |