CH89634A - Headlights. - Google Patents

Headlights.

Info

Publication number
CH89634A
CH89634A CH89634DA CH89634A CH 89634 A CH89634 A CH 89634A CH 89634D A CH89634D A CH 89634DA CH 89634 A CH89634 A CH 89634A
Authority
CH
Switzerland
Prior art keywords
headlights
charcoal
negative
light
positive
Prior art date
Application number
Other languages
German (de)
Inventor
Co Gebrueder Siemens
Original Assignee
Siemens & Co Geb
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 Siemens & Co Geb filed Critical Siemens & Co Geb
Publication of CH89634A publication Critical patent/CH89634A/en

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  • Discharge Lamp (AREA)

Description

  

      Scheinwerfer.       Erfindungsgemäss wird die negative  Elektrode von Scheinwerfern, insbesondere  von solchen für Projektionszwecke, mit  einem Zusatz von     Leuchtstoffen    versehen.  während die positive Elektrode keine oder  nur geringe Mengen von     Leuchtstoffen    ent  hält. Es hat sich gezeigt, dass durch diese  Anordnung eine bedeutend grössere Licht  ausbeute erzielt wird, als wenn man die po  sitive Elektrode als Effektkohle ausbildet,  oder positive und negative     Elektroden    Bein  kohlen sind. Ausserdem ergibt sich bei die  ser Anordnung unter Umständen ein bes  seres Licht. Besonders     stark    tritt dies her  vor, wenn es sich darum handelt, ein rein  weisses Licht zu erzeugen.

   Verwendet man  die hierfür üblichen Elektroden, die haupt  sächlich     Lanthanverbindungeii    enthalten.  so ergeben diese in Verbindung mit der po  sitiven Elektrode ein Licht, das erheblich  geringer ist, als wenn man eine Beinkohle  als positive Elektrode hätte. Legt man da  gegen diese Lichtstoffe in die negative    Elektrode, so     erliiilt    man eine ganz bedeu  tend gesteigerte Lichtausbeute und ein bläu  lich weisses Licht,     während    das Licht     zweier          Reinkohlen    etwas     gelblichweiss    ist.

   Beson  ders für Kinolampen     reit        horizontaler    posi  tiver Kohle und dazu geneigter     negativer     bedeutet diese     Anordnung    einen     erheblichen     Vorteil.



      Headlights. According to the invention, the negative electrode of headlights, in particular of those for projection purposes, is provided with an additive of phosphors. while the positive electrode contains no or only small amounts of phosphors ent. It has been shown that this arrangement achieves a significantly greater light yield than if the positive electrode is designed as an effect carbon, or if positive and negative electrodes are carbon. In addition, this arrangement may produce better light. This is particularly pronounced when it comes to producing a pure white light.

   If one uses the electrodes customary for this purpose, which mainly contain lanthanum compounds. in connection with the positive electrode, this results in a light that is considerably less than if one had a charcoal as a positive electrode. If the negative electrode is placed against these luminous substances, a very significant increase in light yield and a bluish white light are obtained, while the light from two pure carbons is somewhat yellowish white.

   Especially for cinema lamps horizontal positive coal and inclined negative coal means this arrangement is a considerable advantage.

 

Claims (1)

PATI:\TA\SPRCTCH Scheinwerfer, dadurch gekennzeichnet, dass als negative Kohle eine Effektkohle ver wendet ist, während die positive Kohle höch stens unbedeutende Zusätze an Leuchtstof fen enthält. UNTERANSPRUCH: Scheinwerfer nach Patentanspruch. da durch gekennzeichnet.. dass die negative Kohle hauptsächlich Lantlianverhindungen enthält. PATI: \ TA \ SPRCTCH Headlights, characterized in that an effect charcoal is used as the negative charcoal, while the positive charcoal contains at most insignificant additives of fluorescent substances. SUBClaim: Headlights according to claim. as indicated by .. that the negative coal contains mainly lantlian connections.
CH89634D 1920-05-11 1920-09-27 Headlights. CH89634A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE89634X 1920-05-11

Publications (1)

Publication Number Publication Date
CH89634A true CH89634A (en) 1921-06-01

Family

ID=5642846

Family Applications (1)

Application Number Title Priority Date Filing Date
CH89634D CH89634A (en) 1920-05-11 1920-09-27 Headlights.

Country Status (1)

Country Link
CH (1) CH89634A (en)

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