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FR794453A - écran photographique perméable à l'infra-rouge - Google Patents

écran photographique perméable à l'infra-rouge

Info

Publication number
FR794453A
FR794453A FR794453DA FR794453A FR 794453 A FR794453 A FR 794453A FR 794453D A FR794453D A FR 794453DA FR 794453 A FR794453 A FR 794453A
Authority
FR
France
Prior art keywords
photographic screen
infrared permeable
permeable
infrared
photographic
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
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
Application filed by IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of FR794453A publication Critical patent/FR794453A/fr
Expired legal-status Critical Current

Links

FR794453D 1934-09-04 1935-08-29 écran photographique perméable à l'infra-rouge Expired FR794453A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE794453X 1934-09-04

Publications (1)

Publication Number Publication Date
FR794453A true FR794453A (fr) 1936-02-18

Family

ID=6710517

Family Applications (1)

Application Number Title Priority Date Filing Date
FR794453D Expired FR794453A (fr) 1934-09-04 1935-08-29 écran photographique perméable à l'infra-rouge

Country Status (1)

Country Link
FR (1) FR794453A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767467C (de) * 1938-10-25 1952-09-08 Cassella Farbwerke Mainkur Ag Verfahren und Vorrichtung zur Isolierung ultraroter Strahlung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE767467C (de) * 1938-10-25 1952-09-08 Cassella Farbwerke Mainkur Ag Verfahren und Vorrichtung zur Isolierung ultraroter Strahlung

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