IT954635B - Copiatrice eliografica con sistema di regolazione dell illuminazione - Google Patents
Copiatrice eliografica con sistema di regolazione dell illuminazioneInfo
- Publication number
- IT954635B IT954635B IT68100/72A IT6810072A IT954635B IT 954635 B IT954635 B IT 954635B IT 68100/72 A IT68100/72 A IT 68100/72A IT 6810072 A IT6810072 A IT 6810072A IT 954635 B IT954635 B IT 954635B
- Authority
- IT
- Italy
- Prior art keywords
- heliographic
- copier
- regulation system
- lighting regulation
- lighting
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B27/00—Photographic printing apparatus
- G03B27/72—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus
- G03B27/80—Controlling or varying light intensity, spectral composition, or exposure time in photographic printing apparatus in dependence upon automatic analysis of the original
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Control Or Security For Electrophotography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2119869A DE2119869C3 (de) | 1971-04-23 | 1971-04-23 | Lichtpausmaschine mit einer integrierenden Meßeinrichtung zur Messung der Iichtdurchlassigkeit eines zu kopierenden Originals |
Publications (1)
Publication Number | Publication Date |
---|---|
IT954635B true IT954635B (it) | 1973-09-15 |
Family
ID=5805674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT68100/72A IT954635B (it) | 1971-04-23 | 1972-04-10 | Copiatrice eliografica con sistema di regolazione dell illuminazione |
Country Status (4)
Country | Link |
---|---|
US (1) | US3756713A (it) |
DE (1) | DE2119869C3 (it) |
GB (1) | GB1345454A (it) |
IT (1) | IT954635B (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2204337C3 (de) * | 1972-01-31 | 1985-10-24 | Hoechst Ag, 6230 Frankfurt | Lichtpausmaschine für räumlich getrennte Vorlagen |
DE2263952C2 (de) * | 1972-12-29 | 1981-11-12 | Hoechst Ag, 6000 Frankfurt | Vorrichtung zur automatischen Steuerung der Durchlaufgeschwindigkeit von Vorlage und Kopiermaterial in Abhängigkeit von der Transparenz der Vorlage in einem Kopiergerät |
US4160596A (en) * | 1977-10-18 | 1979-07-10 | The United States Of America As Represented By The Secretary Of Commerce | Document reproduction illumination/exposure control system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1925355A (en) * | 1930-06-09 | 1933-09-05 | Delmar A Whitson | Motion picture film printer |
US2928327A (en) * | 1955-09-01 | 1960-03-15 | Eastman Kodak Co | Continuous photographic printer |
US3472592A (en) * | 1966-10-21 | 1969-10-14 | Gaf Corp | Automatic exposure system |
US3588247A (en) * | 1967-05-17 | 1971-06-28 | Minolta Camera Kk | Automatic exposure control device for copying machine |
US3642377A (en) * | 1969-12-02 | 1972-02-15 | Xerox Corp | Color printing system |
-
1971
- 1971-04-23 DE DE2119869A patent/DE2119869C3/de not_active Expired
-
1972
- 1972-03-16 GB GB1228172A patent/GB1345454A/en not_active Expired
- 1972-04-06 US US00241564A patent/US3756713A/en not_active Expired - Lifetime
- 1972-04-10 IT IT68100/72A patent/IT954635B/it active
Also Published As
Publication number | Publication date |
---|---|
DE2119869A1 (de) | 1972-11-16 |
DE2119869B2 (de) | 1974-02-28 |
US3756713A (en) | 1973-09-04 |
GB1345454A (en) | 1974-01-30 |
DE2119869C3 (de) | 1978-09-21 |
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