CA1077122A - Appareil optique pour produire de facon selective des images a ondulation dans des regions de pellicule photoplastique a surface speculaire et pour effacer ces images en vue de reutiliser la pellicule - Google Patents

Appareil optique pour produire de facon selective des images a ondulation dans des regions de pellicule photoplastique a surface speculaire et pour effacer ces images en vue de reutiliser la pellicule

Info

Publication number: CA1077122A
Authority: CA; Canada
Prior art keywords: film; platen; area; image; frame
Prior art date: 1975-02-27
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA331,981A

Other languages

English (en)

Inventor

Gordon Lysle

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Bell and Howell Co

Original Assignee

Bell and Howell Co

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1975-02-27

Filing date

1979-07-17

Publication date

1980-05-06

1975-02-27 Priority claimed from US05/553,520 external-priority patent/US3992090A/en

1979-07-17 Application filed by Bell and Howell Co filed Critical Bell and Howell Co

1979-07-17 Priority to CA331,981A priority Critical patent/CA1077122A/fr

1980-05-06 Application granted granted Critical

1980-05-06 Publication of CA1077122A publication Critical patent/CA1077122A/fr

Status Expired legal-status Critical Current

Links

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Landscapes

Manufacture Or Reproduction Of Printing Formes (AREA)

CA331,981A 1975-02-27 1979-07-17 Appareil optique pour produire de facon selective des images a ondulation dans des regions de pellicule photoplastique a surface speculaire et pour effacer ces images en vue de reutiliser la pellicule Expired CA1077122A (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
CA331,981A CA1077122A (fr)	1975-02-27	1979-07-17	Appareil optique pour produire de facon selective des images a ondulation dans des regions de pellicule photoplastique a surface speculaire et pour effacer ces images en vue de reutiliser la pellicule

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US05/553,520 US3992090A (en)	1975-02-27	1975-02-27	Optical apparatus for selectively producing rippled message images in areas of specular surfaced photoplastic film and erasing such images from such areas for reuse
CA245,482A CA1077121A (fr)	1975-02-27	1976-02-11	Camera produisant des images a ondulations de facon selective sur pellicule photoplastique a surface speculaire et pouvant effacer ces images pour reutilisation de la pellicule
CA331,981A CA1077122A (fr)	1975-02-27	1979-07-17	Appareil optique pour produire de facon selective des images a ondulation dans des regions de pellicule photoplastique a surface speculaire et pour effacer ces images en vue de reutiliser la pellicule

Publications (1)

Publication Number	Publication Date
CA1077122A true CA1077122A (fr)	1980-05-06

Family

ID=27164325

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA331,981A Expired CA1077122A (fr)	1975-02-27	1979-07-17	Appareil optique pour produire de facon selective des images a ondulation dans des regions de pellicule photoplastique a surface speculaire et pour effacer ces images en vue de reutiliser la pellicule

Country Status (1)

Country	Link
CA (1)	CA1077122A (fr)

1979
- 1979-07-17 CA CA331,981A patent/CA1077122A/fr not_active Expired

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Legal Events

Date	Code	Title	Description
1997-05-06	MKEX	Expiry