FR18632E - Method and device for producing and maintaining constant light coloring in vacuum illuminating tubes - Google Patents

Method and device for producing and maintaining constant light coloring in vacuum illuminating tubes

Info

Publication number
FR18632E
FR18632E FR18632DA FR18632E FR 18632 E FR18632 E FR 18632E FR 18632D A FR18632D A FR 18632DA FR 18632 E FR18632 E FR 18632E
Authority
FR
France
Prior art keywords
vacuum
producing
constant light
maintaining constant
light coloring
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
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.)
MOORE LICHT AG
Original Assignee
MOORE LICHT 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.)
Publication date
Application granted granted Critical
Publication of FR18632E publication Critical patent/FR18632E/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/24—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26—Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
FR18632D 1912-04-13 Method and device for producing and maintaining constant light coloring in vacuum illuminating tubes Expired FR18632E (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE259951T 1912-04-13
DE274294T 1912-11-28

Publications (1)

Publication Number Publication Date
FR18632E true FR18632E (en) 1914-05-27

Family

ID=32929036

Family Applications (1)

Application Number Title Priority Date Filing Date
FR18632D Expired FR18632E (en) 1912-04-13 Method and device for producing and maintaining constant light coloring in vacuum illuminating tubes

Country Status (3)

Country Link
DE (1) DE274294C (en)
FR (1) FR18632E (en)
GB (1) GB191327426A (en)

Also Published As

Publication number Publication date
GB191327426A (en) 1915-07-15
DE274294C (en)

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