GB1155861A - Contact Screen For Photoengraving, Photolithography, Rotoengravure And Process For The Manufacture Thereof - Google Patents
Contact Screen For Photoengraving, Photolithography, Rotoengravure And Process For The Manufacture ThereofInfo
- Publication number
- GB1155861A GB1155861A GB2837866A GB2837866A GB1155861A GB 1155861 A GB1155861 A GB 1155861A GB 2837866 A GB2837866 A GB 2837866A GB 2837866 A GB2837866 A GB 2837866A GB 1155861 A GB1155861 A GB 1155861A
- Authority
- GB
- United Kingdom
- Prior art keywords
- diaphragm
- cross
- screen
- series
- film
- 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
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F5/00—Screening processes; Screens therefor
- G03F5/14—Screening processes; Screens therefor by contact methods
- G03F5/18—Screening processes; Screens therefor by contact methods using colour half-tone screens
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F5/00—Screening processes; Screens therefor
- G03F5/14—Screening processes; Screens therefor by contact methods
- G03F5/16—Screening processes; Screens therefor by contact methods using grey half-tone screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Fax Reproducing Arrangements (AREA)
- Photosensitive Polymer And Photoresist Processing (AREA)
Abstract
1,155,861. Photo-mechanical contact screens. G. BISUTTI. June 24, 1966 [July 31, 1965; Jan.7, 1966], No.28378/66. Heading G2M. A contact screen for use in the production of continuous tone originals, comprising two series of dots of different areas spaced so that the elements of the two series alternate with each other in a one and one sequence in two mutually transverse directions. The dots may be square, circular, elliptical or rhomboidal. The contact screen may be made by exposing a transparent film K with a low-contrast light-sensitive layer X, through a cross-line screen R and a diaphragm H with two openings H 1 and H 2 which are of different size or translucency or colour (if the film is differently sensitive to two colours) by light source L. Alternatively a diaphragm with one aperture may be used and the cross-line screen may have two sets of openings of different size, translucency or colour. A further possibility is to use two exposures and adjust the position of the diaphragm, cross-line screen or film so that the second series are produced in the desired positions.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT10765 | 1965-07-31 | ||
| IT1721365 | 1965-07-31 | ||
| IT1320066 | 1966-01-07 | ||
| IT30366 | 1966-01-07 | ||
| NL6710527A NL6710527A (en) | 1965-07-31 | 1967-07-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1155861A true GB1155861A (en) | 1969-06-25 |
Family
ID=27517737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2837866A Expired GB1155861A (en) | 1965-07-31 | 1966-06-24 | Contact Screen For Photoengraving, Photolithography, Rotoengravure And Process For The Manufacture Thereof |
Country Status (3)
| Country | Link |
|---|---|
| GB (1) | GB1155861A (en) |
| IT (1) | IT724616A (en) |
| NL (1) | NL6710527A (en) |
-
0
- IT IT724616D patent/IT724616A/it unknown
-
1966
- 1966-06-24 GB GB2837866A patent/GB1155861A/en not_active Expired
-
1967
- 1967-07-28 NL NL6710527A patent/NL6710527A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IT724616A (en) | |
| DE1522467B2 (en) | 1972-09-07 |
| DE1522467A1 (en) | 1970-02-19 |
| NL6710527A (en) | 1969-01-30 |
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