Low wattage double filament tungsten-halogen lamp

Low wattage double filament tungsten-halogen lamp

A low wattage tungsten-halogen lamp with an improved filament construction comprising a pair of selectively activated filaments, each having a plurality of coil turns, being intercoupled by a relatively short intermediate member. Preferably, both of the filaments and the intermediate member are form...

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Hauptverfasser: GAGNON, PETER R, LEADVARO, STEPHEN J, ENGLISH, GEORGE J
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
BLASTING
ELECTRIC INCANDESCENT LAMPS
ELECTRICITY
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
WEAPONS
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creator GAGNON, PETER R
LEADVARO, STEPHEN J
ENGLISH, GEORGE J
description A low wattage tungsten-halogen lamp with an improved filament construction comprising a pair of selectively activated filaments, each having a plurality of coil turns, being intercoupled by a relatively short intermediate member. Preferably, both of the filaments and the intermediate member are formed from a single wire. The spacing between turns of each filament is greater about the central portion of the filament than at the opposed end portions thereof, thereby enhancing visible radiation. Xenon gas, at a pressure of fifteen atmospheres, is preferably used as the inert gas fill for the lamp due to its low thermal conductivity.
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Xenon gas, at a pressure of fifteen atmospheres, is preferably used as the inert gas fill for the lamp due to its low thermal conductivity.</description><edition>4</edition><language>eng ; fre ; ger</language><subject>BASIC ELECTRIC ELEMENTS ; BLASTING ; ELECTRIC INCANDESCENT LAMPS ; ELECTRICITY ; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR ; WEAPONS</subject><creationdate>1986</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19860115&amp;DB=EPODOC&amp;CC=EP&amp;NR=0168015A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=19860115&amp;DB=EPODOC&amp;CC=EP&amp;NR=0168015A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>GAGNON, PETER R</creatorcontrib><creatorcontrib>LEADVARO, STEPHEN J</creatorcontrib><creatorcontrib>ENGLISH, GEORGE J</creatorcontrib><title>Low wattage double filament tungsten-halogen lamp</title><description>A low wattage tungsten-halogen lamp with an improved filament construction comprising a pair of selectively activated filaments, each having a plurality of coil turns, being intercoupled by a relatively short intermediate member. 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subjects BASIC ELECTRIC ELEMENTS
BLASTING
ELECTRIC INCANDESCENT LAMPS
ELECTRICITY
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
WEAPONS
title Low wattage double filament tungsten-halogen lamp
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