CH430270A - Bildwerfer, der eine Quecksilberdampfentladungslampe als Lichtquelle enthält - Google Patents

Bildwerfer, der eine Quecksilberdampfentladungslampe als Lichtquelle enthält

Info

Publication number
CH430270A
CH430270A CH339563A CH339563A CH430270A CH 430270 A CH430270 A CH 430270A CH 339563 A CH339563 A CH 339563A CH 339563 A CH339563 A CH 339563A CH 430270 A CH430270 A CH 430270A
Authority
CH
Switzerland
Prior art keywords
projector
light source
discharge lamp
mercury vapor
vapor discharge
Prior art date
Application number
CH339563A
Other languages
English (en)
Inventor
Wal Johannes Van Der
Hoekstra Piet
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH430270A publication Critical patent/CH430270A/de

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
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/40—Devices for influencing the colour or wavelength of the light by light filters; by coloured coatings in or on the envelope
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/28—Interference filters
    • G02B5/285—Interference filters comprising deposited thin solid films
    • G02B5/286—Interference filters comprising deposited thin solid films having four or fewer layers, e.g. for achieving a colour effect

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Surface Treatment Of Optical Elements (AREA)
CH339563A 1962-03-21 1963-03-18 Bildwerfer, der eine Quecksilberdampfentladungslampe als Lichtquelle enthält CH430270A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL276233 1962-03-21

Publications (1)

Publication Number Publication Date
CH430270A true CH430270A (de) 1967-02-15

Family

ID=19753689

Family Applications (1)

Application Number Title Priority Date Filing Date
CH339563A CH430270A (de) 1962-03-21 1963-03-18 Bildwerfer, der eine Quecksilberdampfentladungslampe als Lichtquelle enthält

Country Status (3)

Country Link
CH (1) CH430270A (de)
GB (1) GB993538A (de)
NL (1) NL276233A (de)

Also Published As

Publication number Publication date
GB993538A (en) 1965-05-26
NL276233A (de)

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