CH471398A - Illumination device for illuminating the film window of a film projector - Google Patents

Illumination device for illuminating the film window of a film projector

Info

Publication number
CH471398A
CH471398A CH132468A CH132468A CH471398A CH 471398 A CH471398 A CH 471398A CH 132468 A CH132468 A CH 132468A CH 132468 A CH132468 A CH 132468A CH 471398 A CH471398 A CH 471398A
Authority
CH
Switzerland
Prior art keywords
film
illuminating
illumination device
window
projector
Prior art date
Application number
CH132468A
Other languages
German (de)
Inventor
Ridder Jan De
Cornelis Jacobs Thoma Antonius
Prijn Cornelis
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 CH471398A publication Critical patent/CH471398A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K7/00—Lamps for purposes other than general lighting
    • H01K7/02—Lamps for purposes other than general lighting for producing a narrow beam of light; for approximating a point-like source of light, e.g. for searchlight, for cinematographic projector
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K1/00—Details
    • H01K1/02—Incandescent bodies
    • H01K1/14—Incandescent bodies characterised by the shape

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Projection Apparatus (AREA)
CH132468A 1967-02-01 1968-01-29 Illumination device for illuminating the film window of a film projector CH471398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6701519.A NL156827B (en) 1967-02-01 1967-02-01 PROJECTION UNIT, CONSISTING OF A CONDENSER MIRROR AND A HALOGEN BULB.

Publications (1)

Publication Number Publication Date
CH471398A true CH471398A (en) 1969-04-15

Family

ID=19799186

Family Applications (1)

Application Number Title Priority Date Filing Date
CH132468A CH471398A (en) 1967-02-01 1968-01-29 Illumination device for illuminating the film window of a film projector

Country Status (7)

Country Link
US (1) US3488543A (en)
AT (1) AT272840B (en)
CH (1) CH471398A (en)
DE (1) DE1278233B (en)
FR (1) FR1557948A (en)
GB (1) GB1143914A (en)
NL (1) NL156827B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700881A (en) * 1971-04-29 1972-10-24 Gen Electric Lamp and reflector assembly
DE2249630C2 (en) * 1972-07-05 1984-04-12 Robert Bosch Gmbh, 7000 Stuttgart Pressure-tight headlight for automobiles
US3936686A (en) * 1973-05-07 1976-02-03 Moore Donald W Reflector lamp cooling and containing assemblies
DE2323520A1 (en) * 1973-05-10 1974-11-28 Bosch Gmbh Robert GAS-TIGHT HEADLIGHT FOR VEHICLES
NL7507227A (en) * 1975-06-18 1976-12-21 Philips Nv BULB REFLEKTOR UNIT.
US4156271A (en) * 1976-05-05 1979-05-22 General Electric Company Reflector lamp
NL179433C (en) * 1976-06-21 1986-09-01 Philips Nv ELECTRIC LAMP.
HU183426B (en) * 1981-05-08 1984-05-28 Egyesuelt Izzolampa Projecting lamp consisting of incandescent lamp and condensor mirror mounted rigidly to the lamp
US4499526A (en) * 1983-08-25 1985-02-12 General Electric Company Lamp unit having glass reflector member with recessed base end
EP0420214A3 (en) * 1989-09-27 1991-08-28 Toshiba Lighting & Technology Corporation Lamp device and method of bonding mirror reflector to lamp
EP0470496A3 (en) * 1990-08-07 1992-08-26 Toshiba Lighting & Technology Corporation Incandescent lamp and reflector type projection lamp
JPH06160766A (en) * 1992-11-25 1994-06-07 Canon Inc Projection type display device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2233486A (en) * 1939-12-13 1941-03-04 Michael P Portnow Headlight
CH238312A (en) * 1943-02-08 1945-07-15 Texis Societe Anonyme Textile Process for the production of artificial structures from cellulose or cellulose derivative xanthates.
US3390262A (en) * 1965-05-24 1968-06-25 Sylvania Electric Prod Multizone high power light reflector
US3365604A (en) * 1965-12-01 1968-01-23 Sylvania Electric Prod Projection reflector lamp
US3381575A (en) * 1965-12-03 1968-05-07 Sylvania Electric Prod Electric projection lamp
DE3417717C2 (en) * 1984-05-12 1987-02-26 HOLTEC Gölz, Sänger & Massierer GmbH & Co KG, 5374 Hellenthal Device for transporting and measuring round wood

Also Published As

Publication number Publication date
NL156827B (en) 1978-05-16
FR1557948A (en) 1969-02-21
AT272840B (en) 1969-07-25
DE1278233B (en) 1968-09-19
GB1143914A (en) 1969-02-26
US3488543A (en) 1970-01-06
NL6701519A (en) 1968-08-02

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Legal Events

Date Code Title Description
PL Patent ceased