FR2155559A5 - - Google Patents
Info
- Publication number
- FR2155559A5 FR2155559A5 FR7235123A FR7235123A FR2155559A5 FR 2155559 A5 FR2155559 A5 FR 2155559A5 FR 7235123 A FR7235123 A FR 7235123A FR 7235123 A FR7235123 A FR 7235123A FR 2155559 A5 FR2155559 A5 FR 2155559A5
- Authority
- FR
- France
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Of Exposure In Printing And Copying (AREA)
- Control Or Security For Electrophotography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712149404 DE2149404B2 (de) | 1971-10-04 | 1971-10-04 | Belichtungseinrichtung fuer elektrophotographische reproduktionsgeraete |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2155559A5 true FR2155559A5 (fr) | 1973-05-18 |
Family
ID=5821379
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7235123A Expired FR2155559A5 (fr) | 1971-10-04 | 1972-10-04 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3771867A (fr) |
JP (1) | JPS5534422B2 (fr) |
AU (1) | AU461626B2 (fr) |
DE (1) | DE2149404B2 (fr) |
FR (1) | FR2155559A5 (fr) |
GB (1) | GB1398576A (fr) |
NL (1) | NL7212953A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2379843A1 (fr) * | 1977-02-02 | 1978-09-01 | Grafosol Spa | Dispositif d'eclairage et de regulation de la quantite de lumiere pour machines pour la preparation de matrices de tirage par voie electrostatique |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS502548A (fr) * | 1973-05-08 | 1975-01-11 | ||
US3967895A (en) * | 1974-09-18 | 1976-07-06 | Xerox Corporation | Illumination control system |
DE2528925A1 (de) * | 1975-06-28 | 1977-01-13 | Agfa Gevaert Ag | Fotokopiergeraet |
JPS5229225A (en) * | 1975-08-29 | 1977-03-04 | Ricoh Co Ltd | Exposure adjustable device of an automatic return type |
JPS5841497B2 (ja) * | 1976-05-31 | 1983-09-12 | ミノルタ株式会社 | スリット露光型複写機における露光量調整装置 |
DE2839076C3 (de) * | 1977-09-09 | 1998-01-29 | Canon Kk | Kopiergerät |
JPS5442149A (en) * | 1977-09-09 | 1979-04-03 | Canon Inc | Image former |
JPS5492223A (en) * | 1977-12-29 | 1979-07-21 | Konishiroku Photo Ind Co Ltd | Magnification variable type copier of automatic return type |
DE2916243A1 (de) * | 1978-04-25 | 1979-11-08 | Iwatsu Electric Co Ltd | Belichtungsvorrichtung fuer eine elektrographische kopiervorrichtung |
GB2024438B (en) | 1978-06-30 | 1983-04-27 | Canon Kk | Electrophotographic copier |
JPS557709A (en) * | 1978-06-30 | 1980-01-19 | Canon Inc | Exposure control unit of copying machine |
DE2954647C2 (de) * | 1978-06-30 | 1994-03-03 | Canon Kk | Kopiergerät mit einstellbarer Lichtquellenleistung |
JPS55101965A (en) * | 1979-01-30 | 1980-08-04 | Ricoh Co Ltd | Aperture control unit in variable power copying machine |
JPS5621165A (en) * | 1979-07-28 | 1981-02-27 | Mita Ind Co Ltd | Exposure adjusting device of electrostatic type copying machine |
JPS56164365A (en) * | 1980-05-23 | 1981-12-17 | Fuji Xerox Co Ltd | Exposure adjusting device for copying machine |
JPS576870A (en) * | 1980-06-13 | 1982-01-13 | Minolta Camera Co Ltd | Operating device |
JPS61121760U (fr) * | 1985-01-17 | 1986-07-31 | ||
JPS61119160U (fr) * | 1985-12-19 | 1986-07-28 | ||
US5036552A (en) * | 1990-02-22 | 1991-08-06 | Deakyne Ralph V | Fastener |
US7344255B2 (en) * | 2004-04-01 | 2008-03-18 | Nisca Corporation | Light amount adjusting apparatus and projector using the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3107578A (en) * | 1959-12-05 | 1963-10-22 | Agfa Ag | Filter-operating arrangement for a photographic printing apparatus |
GB1074583A (en) * | 1963-01-23 | 1967-07-05 | Eastman Kodak Co | Sheet-handling apparatus |
US3602579A (en) * | 1969-11-17 | 1971-08-31 | Film Editing Equipment Corp | Electromechanical light valve system |
-
1971
- 1971-10-04 DE DE19712149404 patent/DE2149404B2/de not_active Ceased
-
1972
- 1972-09-25 NL NL7212953A patent/NL7212953A/xx not_active Application Discontinuation
- 1972-10-02 GB GB4527672A patent/GB1398576A/en not_active Expired
- 1972-10-02 US US00293838A patent/US3771867A/en not_active Expired - Lifetime
- 1972-10-03 AU AU47326/72A patent/AU461626B2/en not_active Expired
- 1972-10-04 FR FR7235123A patent/FR2155559A5/fr not_active Expired
- 1972-10-04 JP JP10027772A patent/JPS5534422B2/ja not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2379843A1 (fr) * | 1977-02-02 | 1978-09-01 | Grafosol Spa | Dispositif d'eclairage et de regulation de la quantite de lumiere pour machines pour la preparation de matrices de tirage par voie electrostatique |
Also Published As
Publication number | Publication date |
---|---|
GB1398576A (en) | 1975-06-25 |
NL7212953A (fr) | 1973-04-06 |
DE2149404B2 (de) | 1976-09-30 |
US3771867A (en) | 1973-11-13 |
AU4732672A (en) | 1974-04-11 |
DE2149404A1 (de) | 1973-04-12 |
AU461626B2 (en) | 1975-05-29 |
JPS4846341A (fr) | 1973-07-02 |
JPS5534422B2 (fr) | 1980-09-06 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |