FR2340563A1 - Dispositif de projection d'images - Google Patents
Dispositif de projection d'imagesInfo
- Publication number
- FR2340563A1 FR2340563A1 FR7702996A FR7702996A FR2340563A1 FR 2340563 A1 FR2340563 A1 FR 2340563A1 FR 7702996 A FR7702996 A FR 7702996A FR 7702996 A FR7702996 A FR 7702996A FR 2340563 A1 FR2340563 A1 FR 2340563A1
- Authority
- FR
- France
- Prior art keywords
- projection device
- image projection
- image
- projection
- Prior art date
- 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.)
- Granted
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
- G03B27/32—Projection printing apparatus, e.g. enlarger, copying camera
- G03B27/52—Details
- G03B27/522—Projection optics
- G03B27/523—Projection optics for full time exposure
-
- 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
- G03G15/041—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 variable magnification
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Optical Systems Of Projection Type Copiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/654,819 US4077710A (en) | 1976-02-03 | 1976-02-03 | Lens shift mechanism |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2340563A1 true FR2340563A1 (fr) | 1977-09-02 |
FR2340563B1 FR2340563B1 (fr) | 1982-07-02 |
Family
ID=24626369
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7702996A Granted FR2340563A1 (fr) | 1976-02-03 | 1977-02-03 | Dispositif de projection d'images |
Country Status (4)
Country | Link |
---|---|
US (1) | US4077710A (fr) |
JP (1) | JPS5296031A (fr) |
FR (1) | FR2340563A1 (fr) |
GB (1) | GB1558416A (fr) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4394084A (en) * | 1979-02-12 | 1983-07-19 | Coulter Systems Corporation | Low-profile electrophotographic copying machine |
MX146428A (es) * | 1979-02-12 | 1982-06-25 | Coulter Systems Corp | Maquina copiadora electrofotografica con perfil reducido |
JPS56133756A (en) * | 1980-03-25 | 1981-10-20 | Asahi Optical Co Ltd | Optical device for variable magnification copying capable of size enlarging and reducing |
JPS57150844U (fr) * | 1981-03-16 | 1982-09-21 | ||
JPS5817463A (ja) * | 1981-07-24 | 1983-02-01 | Asahi Optical Co Ltd | 複写機の2段変倍装置 |
US4521100A (en) * | 1982-06-28 | 1985-06-04 | Canon Kabushiki Kaisha | Variable magnification image forming apparatus |
US4639121A (en) * | 1985-06-24 | 1987-01-27 | Xerox Corporation | Document registration system |
US4942430A (en) * | 1987-12-11 | 1990-07-17 | Brother Kogyo Kabushiki Kaisha | Image recording apparatus having separated optical and developing units |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3609036A (en) * | 1969-06-02 | 1971-09-28 | Mosler Safe Co | Gearless camera-focusing apparatus |
US3600066A (en) * | 1969-06-02 | 1971-08-17 | Xerox Corp | Optical assembly with supplemental lens means |
US3614222A (en) * | 1970-04-24 | 1971-10-19 | Olivetti & Co Spa | Optical drive system for reproducing machine |
US3631786A (en) * | 1970-07-23 | 1972-01-04 | Eastman Kodak Co | Adjusting mechanism for zoom lens system |
US3829209A (en) * | 1971-06-11 | 1974-08-13 | Xerox Corp | Image registration in a multiple magnification photocopying system |
US3873189A (en) * | 1972-06-23 | 1975-03-25 | Rank Xerox Ltd | Adjustable-position optical system |
-
1976
- 1976-02-03 US US05/654,819 patent/US4077710A/en not_active Expired - Lifetime
-
1977
- 1977-01-27 GB GB3377/77A patent/GB1558416A/en not_active Expired
- 1977-01-31 JP JP961577A patent/JPS5296031A/ja active Pending
- 1977-02-03 FR FR7702996A patent/FR2340563A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
GB1558416A (en) | 1980-01-03 |
FR2340563B1 (fr) | 1982-07-02 |
US4077710A (en) | 1978-03-07 |
JPS5296031A (en) | 1977-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |