GB489374A - Improvements relating to the production of autotype pictures - Google Patents

Improvements relating to the production of autotype pictures

Info

Publication number
GB489374A
GB489374A GB3542836A GB3542836A GB489374A GB 489374 A GB489374 A GB 489374A GB 3542836 A GB3542836 A GB 3542836A GB 3542836 A GB3542836 A GB 3542836A GB 489374 A GB489374 A GB 489374A
Authority
GB
United Kingdom
Prior art keywords
apertures
plates
diaphragm
series
peripheral
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
Application number
GB3542836A
Other languages
English (en)
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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.)
Filing date
Publication date
Priority to BE424041D priority Critical patent/BE424041A/xx
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Priority to GB3542836A priority patent/GB489374A/en
Priority to FR48877D priority patent/FR48877E/fr
Publication of GB489374A publication Critical patent/GB489374A/en
Expired legal-status Critical Current

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
    • G03F5/02—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)
  • Diaphragms For Cameras (AREA)
GB3542836A 1936-12-24 1936-12-24 Improvements relating to the production of autotype pictures Expired GB489374A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE424041D BE424041A (en:Method) 1936-12-24
GB3542836A GB489374A (en) 1936-12-24 1936-12-24 Improvements relating to the production of autotype pictures
FR48877D FR48877E (fr) 1936-12-24 1937-10-04 Procédé pour la reproduction autotypique d'images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3542836A GB489374A (en) 1936-12-24 1936-12-24 Improvements relating to the production of autotype pictures

Publications (1)

Publication Number Publication Date
GB489374A true GB489374A (en) 1938-07-25

Family

ID=10377595

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3542836A Expired GB489374A (en) 1936-12-24 1936-12-24 Improvements relating to the production of autotype pictures

Country Status (3)

Country Link
BE (1) BE424041A (en:Method)
FR (1) FR48877E (en:Method)
GB (1) GB489374A (en:Method)

Also Published As

Publication number Publication date
BE424041A (en:Method)
FR48877E (fr) 1938-09-19

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