FR682393A - Dispositif destiné à l'augmentation de l'effet actinique des rayons lumineux - Google Patents

Dispositif destiné à l'augmentation de l'effet actinique des rayons lumineux

Info

Publication number
FR682393A
FR682393A FR682393DA FR682393A FR 682393 A FR682393 A FR 682393A FR 682393D A FR682393D A FR 682393DA FR 682393 A FR682393 A FR 682393A
Authority
FR
France
Prior art keywords
increase
light rays
device intended
actinic effect
actinic
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)
French (fr)
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Application granted granted Critical
Publication of FR682393A publication Critical patent/FR682393A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J31/00—Cathode ray tubes; Electron beam tubes
    • H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
    • H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
FR682393D 1928-10-04 1929-09-27 Dispositif destiné à l'augmentation de l'effet actinique des rayons lumineux Expired FR682393A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL682393X 1928-10-04

Publications (1)

Publication Number Publication Date
FR682393A true FR682393A (fr) 1930-05-27

Family

ID=19805545

Family Applications (1)

Application Number Title Priority Date Filing Date
FR682393D Expired FR682393A (fr) 1928-10-04 1929-09-27 Dispositif destiné à l'augmentation de l'effet actinique des rayons lumineux

Country Status (2)

Country Link
BE (1) BE364062A (pm)
FR (1) FR682393A (pm)

Also Published As

Publication number Publication date
BE364062A (pm)

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