GB1199525A - Improvements relating to Apparatus for Making an Exposure on a Photosensitive Sheet. - Google Patents
Improvements relating to Apparatus for Making an Exposure on a Photosensitive Sheet.Info
- Publication number
- GB1199525A GB1199525A GB16077/68A GB1607768A GB1199525A GB 1199525 A GB1199525 A GB 1199525A GB 16077/68 A GB16077/68 A GB 16077/68A GB 1607768 A GB1607768 A GB 1607768A GB 1199525 A GB1199525 A GB 1199525A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheet
- exposure
- mirror
- exposure position
- relative
- 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.)
- Expired
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
- G03B27/34—Means for automatic focusing therefor
- G03B27/36—Means for automatic focusing therefor by mechanical connections, e.g. by cam, by linkage
-
- 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
- G03B27/62—Holders for the original
- G03B27/6207—Holders for the original in copying cameras
- G03B27/6214—Copy boards
-
- 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
-
- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/26—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is obtained by projection of the entire image, i.e. whole-frame projection
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection-Type Copiers In General (AREA)
Abstract
1,199,525. Exposing photo-sensitive sheets. ADDRESSOGRAPH-MULTIGRAPH CORP. April 3, 1968 [April 3, 1967], No.16077/68. Headings G2A and G2H. Apparatus for making an exposure on a photosensitive sheet comprises a copyboard 10 having a table 11 on which an original or several originals to be copied are centred; means (not shown) for moving the table and the originals thereon to the vertical exposure position shown in chain dot lines, Fig.1; an optical projection system - lens 19 and mirror 33 - for projecting an image of the original on to a horizontal image plane located above the exposure position; and transport means for delivering a photo-sensitive sheet 46, 47 or 48 into an exposure position on the image plane, the sheet being supported face downwards from the back, the transport means also causing the delivered sheet to dwell during exposure and then removing the sheet from the exposure position. As shown, the apparatus is suitable for electrostatic copying, being provided with a charging station 50, a developing station 64 and a fusing station 75, but the apparatus may be adapted for copying on to silver halide photo-sensitive sheets. In use, an operator selects the size sheet to be used, and this positions a probe carriage 53 relative to the mirror 33. The apparatus may be used for reducing, one-to-one copying, or enlarging, the position of the lens 19 being adjusted relative to a rod rail 30. Adjustment of the lens position automatically moves the mirror 33 and its associated probe carriage 53. The sheet of the selected size is conveyed to its exposure position on the image plane by a belt carriage 41. This comprises spaced belts which traverse the underside of a vacuum chamber housing 42 having a perforated bottom wall 43 against which the selected sheet is held by suction. The leading end of the sheet trips a micro-switch 54 mounted on the probe carriage 53 and the belts stop instantaneously while the exposure is made. For electrostatic copiers, excess developer may be brushed away by hand at a correction station 70 at which the developed sheet is stopped. Movement of the probe carriage relative to the mirror means that a sheet to be exposed will always be correctly centred relative to the mirror and hence with respect to the original.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US62775767A | 1967-04-03 | 1967-04-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1199525A true GB1199525A (en) | 1970-07-22 |
Family
ID=24516008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB16077/68A Expired GB1199525A (en) | 1967-04-03 | 1968-04-03 | Improvements relating to Apparatus for Making an Exposure on a Photosensitive Sheet. |
Country Status (6)
Country | Link |
---|---|
US (1) | US3498712A (en) |
BE (1) | BE711672A (en) |
DE (1) | DE1597083C3 (en) |
FR (1) | FR1548057A (en) |
GB (1) | GB1199525A (en) |
NL (1) | NL6801200A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3589808A (en) * | 1969-06-02 | 1971-06-29 | Xerox Corp | Reproducing apparatus |
US3687544A (en) * | 1970-03-11 | 1972-08-29 | Mueller Rudolf | Electrophotographic copying machine |
US3689143A (en) * | 1970-12-28 | 1972-09-05 | Xerox Corp | Reproducing machine |
US3901593A (en) * | 1973-03-27 | 1975-08-26 | Iwatsu Electric Co Ltd | Copying machines of the variable magnifying power type |
US4192607A (en) * | 1978-07-12 | 1980-03-11 | Eastman Kodak Company | Apparatus for selectively copying documents from two different document feeders |
US4901105A (en) * | 1989-02-16 | 1990-02-13 | Xerox Corporation | Constant velocity optical scanning system |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1103343A (en) * | 1905-07-10 | 1914-07-14 | Joseph Becker | Method of adjusting and regulating automatically-focused enlarging or copying cameras. |
US1404440A (en) * | 1920-09-16 | 1922-01-24 | August F Jobke | Focusing device |
US2168190A (en) * | 1936-12-04 | 1939-08-01 | Agfa Ansco Corp | Photographic enlarging apparatus |
US3397627A (en) * | 1965-05-21 | 1968-08-20 | Addressograph Multigraph | Photoelectrostatic copying machine |
-
1967
- 1967-04-03 US US627757A patent/US3498712A/en not_active Expired - Lifetime
- 1967-11-20 DE DE1597083A patent/DE1597083C3/en not_active Expired
- 1967-12-19 FR FR1548057D patent/FR1548057A/fr not_active Expired
-
1968
- 1968-01-26 NL NL6801200A patent/NL6801200A/xx unknown
- 1968-03-05 BE BE711672D patent/BE711672A/xx unknown
- 1968-04-03 GB GB16077/68A patent/GB1199525A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE1597083A1 (en) | 1969-10-02 |
BE711672A (en) | 1968-07-15 |
US3498712A (en) | 1970-03-03 |
FR1548057A (en) | 1968-11-29 |
DE1597083C3 (en) | 1979-04-12 |
DE1597083B2 (en) | 1978-05-24 |
NL6801200A (en) | 1968-10-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |