FR918887A - Procédé et appareil pour la fabrication de négatifs en demi-teintes - Google Patents

Procédé et appareil pour la fabrication de négatifs en demi-teintes

Info

Publication number: FR918887A
Authority: FR; France
Prior art keywords: production; halftone negatives; negatives; halftone
Prior art date: 1944-08-23
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

Application number

Other languages

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Konica Minolta Graphic Imaging USA Inc

Original Assignee

Konica Minolta Graphic Imaging USA Inc

Priority date (The priority date 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 date listed.)

1944-08-23

Filing date

1945-08-20

Publication date

1947-02-20

1945-08-20 Application filed by Konica Minolta Graphic Imaging USA Inc filed Critical Konica Minolta Graphic Imaging USA Inc

1947-02-20 Application granted granted Critical

1947-02-20 Publication of FR918887A publication Critical patent/FR918887A/fr

Status Expired legal-status Critical Current

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
- G03F5/02—Screening processes; Screens therefor by projection methods
- G03F5/06—Screening processes; Screens therefor by projection methods changing the diaphragm effect

Landscapes

Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Projection-Type Copiers In General (AREA)

FR918887D 1944-08-23 1945-08-20 Procédé et appareil pour la fabrication de négatifs en demi-teintes Expired FR918887A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US550794A US2533650A (en)	1944-08-23	1944-08-23	Process of making half-tone negatives

Publications (1)

Publication Number	Publication Date
FR918887A true FR918887A (fr)	1947-02-20

Family

ID=24198594

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR918887D Expired FR918887A (fr)	1944-08-23	1945-08-20	Procédé et appareil pour la fabrication de négatifs en demi-teintes

Country Status (3)

Country	Link
US (1)	US2533650A (fr)
FR (1)	FR918887A (fr)
GB (1)	GB606120A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2767093A (en) *	1950-06-23	1956-10-16	Bilhoefer Frederick Gustave	Photo printing process
US2692198A (en) *	1950-08-11	1954-10-19	Maurice D Whitney	Methods of producing half-tone printing plates
US2811444A (en) *	1953-01-16	1957-10-29	Francis E Wattier	Printing plate construction
US3128180A (en) *	1958-07-02	1964-04-07	Eastman Kodak Co	Hardened high-contrast photographic silver chloride emulsions and method of processing

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE312513C (fr) *
US532326A (en) *		1895-01-08		Diaphragm for cameras
US802598A (en) *	1905-05-04	1905-10-24	Carl Richter	Process for preparing autotype-negatives.
US1167505A (en) *	1911-11-14	1916-01-11	Werner Robert Busch Larsen	Method of producing half-tone negatives.
US1289129A (en) *	1917-01-22	1918-12-31	Fletcher Douthitt	Method of ascertaining the combination of stops for the production of half-tone dot negatives with a process-camera.
US1832656A (en) *	1922-07-27	1931-11-17	Frank T Powers	Photographic camera
US1575408A (en) *	1923-10-04	1926-03-02	Bassani Processes Inc	Method of and apparatus for making negatives from which printing plates may be produced
US1732051A (en) *	1927-10-28	1929-10-15	Carl G Johnson	High-light stop for cameras
US2100346A (en) *	1933-06-08	1937-11-30	Photo Cylinder Corp	Intaglio printing elements and method of producing the same
US2044184A (en) *	1934-05-17	1936-06-16	Frank T Powers	Apparatus for making negatives
US2060640A (en) *	1934-12-17	1936-11-10	Detroit Moulding Corp	Method of making intaglio printing plates
US2062401A (en) *	1935-03-07	1936-12-01	Disque	Half tone screen operating mechanism
US2095909A (en) *	1935-06-17	1937-10-12	Photo Cast Inc	Universal screen for preparing half tones
US2115233A (en) *	1935-07-05	1938-04-26	Frank T Powers	Process camera
US2123830A (en) *	1935-12-07	1938-07-12	Sterling Engraving Company	Means for producing screen negatives
US2126479A (en) *	1936-04-02	1938-08-09	Photostat Corp	Photographic apparatus
US2145427A (en) *	1937-02-23	1939-01-31	Nat Office Supply Company	Apparatus for producing high light in half tones
US2306936A (en) *	1940-03-26	1942-12-29	Edward Stern & Company Inc	Process and apparatus for flashing in half tone

1944
- 1944-08-23 US US550794A patent/US2533650A/en not_active Expired - Lifetime
1945
- 1945-07-11 GB GB17726/45A patent/GB606120A/en not_active Expired
- 1945-08-20 FR FR918887D patent/FR918887A/fr not_active Expired

Also Published As

Publication number	Publication date
US2533650A (en)	1950-12-12
GB606120A (en)	1948-08-06

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