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FR698719A - Further development of arc lamps for projectors - Google Patents

Further development of arc lamps for projectors

Info

Publication number
FR698719A
FR698719A FR698719DA FR698719A FR 698719 A FR698719 A FR 698719A FR 698719D A FR698719D A FR 698719DA FR 698719 A FR698719 A FR 698719A
Authority
FR
France
Prior art keywords
projectors
further development
arc lamps
lamps
arc
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.)
Maison Breguet SA
Original Assignee
Maison Breguet SA
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 Maison Breguet SA filed Critical Maison Breguet SA
Application granted granted Critical
Publication of FR698719A publication Critical patent/FR698719A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/0081—Controlling of arc lamps
FR698719D 1929-10-11 1929-10-11 Further development of arc lamps for projectors Expired FR698719A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR698719T 1929-10-11

Publications (1)

Publication Number Publication Date
FR698719A true FR698719A (en) 1931-02-03

Family

ID=9047848

Family Applications (1)

Application Number Title Priority Date Filing Date
FR698719D Expired FR698719A (en) 1929-10-11 1929-10-11 Further development of arc lamps for projectors

Country Status (1)

Country Link
FR (1) FR698719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749596C (en) * 1939-10-03 1944-11-27 Fully automatic electric carbon arc lamp, in particular high-performance arc lamp, in which, depending on the operating parameters that are decisive for the operation of the arc - in particular arc current strength, arc voltage and electrode position - the electrode advance is automatically adjusted and the maximum permissible local limits are also prevented from being exceeded (burning) the electrode feed rate is controlled

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749596C (en) * 1939-10-03 1944-11-27 Fully automatic electric carbon arc lamp, in particular high-performance arc lamp, in which, depending on the operating parameters that are decisive for the operation of the arc - in particular arc current strength, arc voltage and electrode position - the electrode advance is automatically adjusted and the maximum permissible local limits are also prevented from being exceeded (burning) the electrode feed rate is controlled

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