US3775110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the production of lenticular elements
Assignee: Agfa Gevaert AG
•
Filing: 1969-06-03
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Granted: 1973-11-27
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Expires: 1989-06-03
Abstract
Abstract Lenticular optical elements are produced by exposing selected areas of a layer of photosensitive material to light whose intensity varies in accordance with a predetermined pattern. The thus exposed layer is thereupon stabilized by developing or rehalogenating.
Inventors
- 👤 F Bestenreiner
- 👤 R Deml
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:21
CPC Classifications
G; G02; G02B; G02B3/00; G02B3/0087; G02B3/0006; G02B3/0012; G02B5/00; G02B5/32; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03C; G03C5/00; G03C5/26; G03C5/40; Y; Y10; Y10S; Y10S359/00; Y10S359/90; Y10S430/00; Y10S430/147
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
14 words
A method according to claim 1, wherein said stabilizing step comprIses developing said layer.
Claim 2
Dependent Claim
14 words
A method according to claim 2, wherein said stabilizing step comprises rehalogenating said layer.
Claim 3
Dependent Claim
20 words
A method according to claim 3, wherein said stabilizing step comprises developing said layer to impart thereto a grained profile.
Claim 4
Dependent Claim
36 words
A method according to claim 1, wherein said lenticular optical element is cylindrical, and wherein the light to which the layer is exposed forms a pattern of substantially parallel and at least substantially equidistant, similar lines.
Claim 5
Dependent Claim
24 words
A method according to claim 1, wherein said pattern is an interference pattern resulting from the superposition of a number of double-ray interference patterns.
Claim 6
Dependent Claim
15 words
A method according to claim 6, wherein said double-ray interference patterns have different local frequencies.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |