US3731994A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recording, duplicating and reproducing images in the form of relief patterns
Assignee: Individual
•
Filing: 1971-07-22
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Granted: 1973-05-08
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Expires: 1991-07-22
Abstract
Abstract The exposed emulsion layer on a transparent carrier of motion picture film is converted into a relief pattern which is thereupon transferred onto a master record. The master is used for the making of duplicate films and the images represented by relief patterns on the duplicate films are reproduced by a Schlieren process or a phase contrast process.
Inventors
- 👤 R Wick
- 👤 F Bestenreiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:54
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/42; G02B27/4233; G02B27/4238; G03; G03B; G03B27/00; G03B27/02; G03B27/14; G03B27/30; G03B27/306; G03C; G03C11/00; Y; Y10; Y10S; Y10S359/00; Y10S359/90
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
99 words
A method of recording, duplicating and reproducing images, particularly images on motion picture film, comprising the steps of exposing a photosensitive emulsion layer on a transparent carrier to scene light to thus transform said emulsion layer into a varying-density layer; converting said varying-density emulsion layer into a relief pattern which is representative of the recorded images; transferring said relief pattern onto a master record; duplicating the relief pattern of the master record onto duplicate records of transparent thermoplastic material; and reproducing the images represented by the relief pattern on a duplicate record by a Schlieren or phase contrast process.
Claim 2
Independent Claim
99 words
A method of recording, duplicating and reproducing images, particularly images on motion picture film, comprising the steps of exposing a photosensitive emulsion layer on a transparent carrier to scene light to thus transform said emulsion layer into a varying-density layer; converting said varying-density emulsion layer into a relief pattern which is representative of the recorded images; transferring said relief pattern onto a master record; duplicating the relief pattern of the master record onto duplicate records of transparent thermoplastic material; and reproducing the images represented by the relief pattern on a duplicate record by a Schlieren or phase contrast process.
Claim 3
Dependent Claim
34 words
A method as defined in claim 1, further comprising the step of providing said relief pattern on said transparent carrier with a grating prior to transfer of such relief pattern onto a master record.
Claim 4
Dependent Claim
46 words
A method as defined in claim 2, wherein said step of providing said relief pattern comprises imaging onto the emulsion layer at least one raster during exposure of such emulsion layer to scene light prior to conversion of the exposed emulsion layer into said relief pattern.
Claim 5
Dependent Claim
34 words
A method as defined in claim 1, further comprising the step of wrinkling the material of said relief pattern on said transparent carrier prior to transfer of such relief pattern onto a master record.
Claim 6
Dependent Claim
30 words
A method as defined in claim 1, wherein said converting step comprises subjecting the exposed varying-density emulsion layer to a reversal development treatment and therEupon to a tanning development treatment.
Claim 7
Dependent Claim
28 words
A method as defined in claim 1, wherein said converting step comprises copying the exposed varying-density emulsion layer onto a photoresist material and thereupon developing the photoresist material.
Claim 8
Dependent Claim
51 words
A method as defined in claim 1, wherein said converting step comprises exposing said varying-density emulsion layer onto an absorbent photographic layer on a transparent carrier by exposing through such carrier, thereupon subjecting the absorbent photographic layer to a tanning development and removing the untanned portions of said absorbent photographic layer.
Claim 9
Dependent Claim
21 words
A method as defined in claim 1, wherein said transferring step comprises galvanically transferring said relief pattern onto said master record.
Claim 10
Dependent Claim
39 words
A method defined in claim 1, wherein said step of exposing comprises separately exposing said emulsion layer to light in different colors and superimposing on said emulsion layer prior to each separate exposure thereof gratings having different grating constants.
Claim 11
Dependent Claim
40 words
A method as defined in claim 1, wherein said step of exposing comprises repeatedly exposing said emulsion layer to light in different colors and superimposing on said emulsion layer prior to each exposure a grating at a different azimuth angle.
Claim 12
Dependent Claim
48 words
A method as defined in claim 1, wherein said reproducing step comprises producing color television signals and said exposing step comprises exposing said emulsion layer once without a grating to produce a luminance image and at least once with a grating to produce at least one chrominance image.
Claim 13
Dependent Claim
22 words
A method as defined in claim 1, wherein said step of exposing comprises exposing said emulsion layer to an image-controlled laser beam.
Claim 14
Dependent Claim
22 words
A method as defined in claim 1, wherein said step of exposing comprises exposing said emulsion layer to an image-controlled electron beam.
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) | 1976-05-07 | 1976-11-06 | 1977-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-07 | 1980-11-06 | 1981-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-07 | 1984-11-06 | 1985-05-08 | $7700.00 | Window Closed / Lapsed |