DD144330A5 - Beleuchtungsquelle fuer super-8-schmalfilmprojektor - Google Patents

Beleuchtungsquelle fuer super-8-schmalfilmprojektor Download PDF

Info

Publication number
DD144330A5
DD144330A5 DD79213694A DD21369479A DD144330A5 DD 144330 A5 DD144330 A5 DD 144330A5 DD 79213694 A DD79213694 A DD 79213694A DD 21369479 A DD21369479 A DD 21369479A DD 144330 A5 DD144330 A5 DD 144330A5
Authority
DD
German Democratic Republic
Prior art keywords
lamp
super
reflector
filling
illumination
Prior art date
Application number
DD79213694A
Other languages
German (de)
English (en)
Inventor
Thomas S Ainsworth
Original Assignee
Thorn Electrical Ind Ltd
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 Thorn Electrical Ind Ltd filed Critical Thorn Electrical Ind Ltd
Publication of DD144330A5 publication Critical patent/DD144330A5/de

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/12Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/18Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
    • H01J61/20Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent mercury vapour
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/84Lamps with discharge constricted by high pressure
    • H01J61/86Lamps with discharge constricted by high pressure with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection

Landscapes

  • Discharge Lamps And Accessories Thereof (AREA)
  • Projection Apparatus (AREA)
  • Discharge Lamp (AREA)
DD79213694A 1978-06-19 1979-06-18 Beleuchtungsquelle fuer super-8-schmalfilmprojektor DD144330A5 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7827212 1978-06-19

Publications (1)

Publication Number Publication Date
DD144330A5 true DD144330A5 (de) 1980-10-08

Family

ID=10498018

Family Applications (1)

Application Number Title Priority Date Filing Date
DD79213694A DD144330A5 (de) 1978-06-19 1979-06-18 Beleuchtungsquelle fuer super-8-schmalfilmprojektor

Country Status (7)

Country Link
JP (1) JPS554087A (fr)
AU (1) AU4809479A (fr)
DD (1) DD144330A5 (fr)
DE (1) DE2924463A1 (fr)
FR (1) FR2429382A1 (fr)
IT (1) IT7923705A0 (fr)
NL (1) NL7904797A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4321504A (en) * 1980-03-24 1982-03-23 Gte Products Corporation Low wattage metal halide arc discharge lamp
US4308483A (en) * 1980-03-24 1981-12-29 Gte Products Corporation High brightness, low wattage, high pressure, metal vapor discharge lamp
US4935668A (en) * 1988-02-18 1990-06-19 General Electric Company Metal halide lamp having vacuum shroud for improved performance

Also Published As

Publication number Publication date
JPS554087A (en) 1980-01-12
NL7904797A (nl) 1979-12-21
AU4809479A (en) 1980-01-03
FR2429382A1 (fr) 1980-01-18
DE2924463A1 (de) 1980-01-03
IT7923705A0 (it) 1979-06-20

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