GB934650A - Improvements in or relating to illuminating assemblies for cinematograph and slide projectors - Google Patents

Improvements in or relating to illuminating assemblies for cinematograph and slide projectors

Info

Publication number
GB934650A
GB934650A GB64060A GB64060A GB934650A GB 934650 A GB934650 A GB 934650A GB 64060 A GB64060 A GB 64060A GB 64060 A GB64060 A GB 64060A GB 934650 A GB934650 A GB 934650A
Authority
GB
United Kingdom
Prior art keywords
lens
mirror
condenser
light
jan
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
GB64060A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zeiss Ikon AG
Original Assignee
Zeiss Ikon AG
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
Priority claimed from DEZ7045A external-priority patent/DE1132743B/en
Priority claimed from DEZ7078A external-priority patent/DE1136507B/en
Application filed by Zeiss Ikon AG filed Critical Zeiss Ikon AG
Publication of GB934650A publication Critical patent/GB934650A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

934,650. Illuminating systems. ZEISS IKON A.G. Jan. 7, 1960 [Jan. 10, 1959; Jan. 24, 1959], No. 640/60. Class 97 (1). An illuminating assembly for cinematograph and slide projectors comprises a concave elliptical mirror condenser so disposed as to produce a rear image of the light source, in combination with a lens condenser so arranged as to receive the entire flux of the source reflected from said condenser and at least one plane deflecting mirror having a heat transparent coating mounted in the immediate vicinity of the lens condenser. In Fig. 3, light from a source 1 is reflected by the elliptical mirror 2 and passed through a diverging lens 13 which projects an approximately parallel beam of light on to a " cold " plane mirror 6 which deflects it through a condenser lens 14 on to the picture gate 3. Lens 14 can be replaced by two or more lenses, one of which may be placed between the lamp and mirror 6. The lens 13 may be omitted and an image of the lamp may be formed on the surface of mirror 6 or at a point between the lamp and said mirror. A field lens may also be placed at this point. Other fully reflecting plane mirrors may be placed in the light path to deflect the light.
GB64060A 1959-01-10 1960-01-07 Improvements in or relating to illuminating assemblies for cinematograph and slide projectors Expired GB934650A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEZ7045A DE1132743B (en) 1959-01-10 1959-01-10 Lighting device for motion picture or. Still projector
DEZ7078A DE1136507B (en) 1959-01-24 1959-01-24 Lighting device for moving picture or still picture projector

Publications (1)

Publication Number Publication Date
GB934650A true GB934650A (en) 1963-08-21

Family

ID=26003361

Family Applications (1)

Application Number Title Priority Date Filing Date
GB64060A Expired GB934650A (en) 1959-01-10 1960-01-07 Improvements in or relating to illuminating assemblies for cinematograph and slide projectors

Country Status (1)

Country Link
GB (1) GB934650A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241440A (en) * 1963-12-26 1966-03-22 Bausch & Lomb Illumination system
EP1662313A2 (en) * 2004-11-30 2006-05-31 Barco N.V. Improved architecture for a projector
EP3048363A1 (en) * 2015-01-26 2016-07-27 OSRAM GmbH Lighting device with light source and reflector of ellipsoidal reflective surface

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3241440A (en) * 1963-12-26 1966-03-22 Bausch & Lomb Illumination system
EP1662313A2 (en) * 2004-11-30 2006-05-31 Barco N.V. Improved architecture for a projector
JP2006154827A (en) * 2004-11-30 2006-06-15 Barco Nv Improved architecture for projector
EP1662313A3 (en) * 2004-11-30 2006-10-25 Barco N.V. Improved architecture for a projector
US7448761B2 (en) 2004-11-30 2008-11-11 Barco, Naamloze Vennootschap Architecture for a projector
EP3048363A1 (en) * 2015-01-26 2016-07-27 OSRAM GmbH Lighting device with light source and reflector of ellipsoidal reflective surface
DE102015201300A1 (en) * 2015-01-26 2016-07-28 Osram Gmbh Lighting device with light source and reflector with ellipsoidal reflecting surface
US10132471B2 (en) 2015-01-26 2018-11-20 Osram Gmbh Lighting device having light source and reflector having ellipsoidal reflection surface

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