GB818229A - Improvements in or relating to optical projection systems - Google Patents

Improvements in or relating to optical projection systems

Info

Publication number
GB818229A
GB818229A GB10065/57A GB1006557A GB818229A GB 818229 A GB818229 A GB 818229A GB 10065/57 A GB10065/57 A GB 10065/57A GB 1006557 A GB1006557 A GB 1006557A GB 818229 A GB818229 A GB 818229A
Authority
GB
United Kingdom
Prior art keywords
lamp
lens
axis
cylindrical
lenses
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
GB10065/57A
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
Application filed by Zeiss Ikon AG filed Critical Zeiss Ikon AG
Publication of GB818229A publication Critical patent/GB818229A/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
    • G03B21/2006—Lamp housings characterised by the light source
    • G03B21/2026—Gas discharge type light sources, e.g. arcs

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

818,229. Optical-projection systems. ZEISS IKON A.G. March 27, 1957 [March 31, 1956], No. 10065/57. Class 97(1) A projection system comprises a gas discharge lamp 3 with its axis at right angles to the optical axis, at least on reflector 2 in the form of a surface or revolution and producing a convergent light beam, and a divergent cylindrical lens 7 spaced from a convergent cylindrical lens 8, the cylinder axes of both being perpendicular to both the lens axis and the lamp axis. The cylindrical lenses compensate for the restricted angular distribution of light from the lamp in planes containing the lamp axis. In the form shown an additional reflector 4 produces an inverted image of the lamp co-incident with the lamp. One face of the lens 8 may be made light diffusing to produce a more nearly uniform illumination of the gate. A "honeycomb" condenser, such as described in Specification 741,246, comprising lenticulated plates 5, 6 may be provided. The plates may be formed integrally with the lenses 7, 8. The lenses of the plate 6 have tonic surfaces so that each one images the corresponding element of the plate 5 in the projection aperture in spite of the cylindrical curvature of the lens 8. A field lens may be provided in the vicinity of the projection aperture.
GB10065/57A 1956-03-31 1957-03-27 Improvements in or relating to optical projection systems Expired GB818229A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE818229X 1956-03-31

Publications (1)

Publication Number Publication Date
GB818229A true GB818229A (en) 1959-08-12

Family

ID=6735398

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10065/57A Expired GB818229A (en) 1956-03-31 1957-03-27 Improvements in or relating to optical projection systems

Country Status (1)

Country Link
GB (1) GB818229A (en)

Cited By (7)

* 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
US3267802A (en) * 1965-01-04 1966-08-23 Gen Electric Lenticulated collimating condensing system for oblique object planes
US3296923A (en) * 1965-01-04 1967-01-10 Gen Electric Lenticulated collimating condensing system
US3321620A (en) * 1963-08-05 1967-05-23 Linear Inc Solar simulator
US3479117A (en) * 1966-06-02 1969-11-18 Farrand Optical Co Inc Optical condenser system
US6452661B1 (en) 1998-02-27 2002-09-17 Nikon Corporation Illumination system and exposure apparatus and method
GB2421584A (en) * 2004-12-21 2006-06-28 Sharp Kk Optical device with converging and diverging elements for directing light

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321620A (en) * 1963-08-05 1967-05-23 Linear Inc Solar simulator
US3241440A (en) * 1963-12-26 1966-03-22 Bausch & Lomb Illumination system
US3267802A (en) * 1965-01-04 1966-08-23 Gen Electric Lenticulated collimating condensing system for oblique object planes
US3296923A (en) * 1965-01-04 1967-01-10 Gen Electric Lenticulated collimating condensing system
US3479117A (en) * 1966-06-02 1969-11-18 Farrand Optical Co Inc Optical condenser system
US6452661B1 (en) 1998-02-27 2002-09-17 Nikon Corporation Illumination system and exposure apparatus and method
US6665051B2 (en) 1998-02-27 2003-12-16 Nikon Corporation Illumination system and exposure apparatus and method
US7023953B2 (en) 1998-02-27 2006-04-04 Nikon Corporation Illumination system and exposure apparatus and method
GB2421584A (en) * 2004-12-21 2006-06-28 Sharp Kk Optical device with converging and diverging elements for directing light
US7817909B2 (en) 2004-12-21 2010-10-19 Sharp Kabushiki Kaisha Optical device and light source

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