WO2001016624A3 - Lighting system using an afocal cylinder lens system - Google Patents

Lighting system using an afocal cylinder lens system Download PDF

Info

Publication number
WO2001016624A3
WO2001016624A3 PCT/DE2000/002622 DE0002622W WO0116624A3 WO 2001016624 A3 WO2001016624 A3 WO 2001016624A3 DE 0002622 W DE0002622 W DE 0002622W WO 0116624 A3 WO0116624 A3 WO 0116624A3
Authority
WO
WIPO (PCT)
Prior art keywords
lighting system
light
ray
ray beam
beams
Prior art date
Application number
PCT/DE2000/002622
Other languages
German (de)
French (fr)
Other versions
WO2001016624A2 (en
Inventor
Horst Linge
Bernward Bretthauer
Original Assignee
Isco Optic Gmbh
Horst Linge
Bernward Bretthauer
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 Isco Optic Gmbh, Horst Linge, Bernward Bretthauer filed Critical Isco Optic Gmbh
Publication of WO2001016624A2 publication Critical patent/WO2001016624A2/en
Publication of WO2001016624A3 publication Critical patent/WO2001016624A3/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/18—Optical objectives specially designed for the purposes specified below with lenses having one or more non-spherical faces, e.g. for reducing geometrical aberration
    • 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
    • G03B21/2013—Plural light sources
    • 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
    • G03B21/2073—Polarisers in the lamp house
    • 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
    • G03B21/208—Homogenising, shaping of the illumination light

Abstract

The invention relates to a lighting system using an afocal cylinder lens system. The invention especially relates to a lighting system that combines the light beams of two light sources. Said lighting system consists of two lamps that produce unpolarized light, two reflectors for focusing the light, two systems of at least two respective cylinder lenses that compress the ray beam in one coordinate direction so that the two ray beams, after having been guided in parallel, are combined to form a ray beam the aspect ratio of which is 1 to 1.6. The lighting system further comprises an optical integrator or bar integrator that guarantees that the object is evenly illuminated. The invention further relates to a lighting system for producing polarized light. Said lighting system consists of a lamp that produces unpolarized light, a reflector that focuses the light, a system that consists of at least two cylinder lenses that compress the ray beam in a coordinate direction, a polarized beam splitter that splits the compressed ray beam into two ray beams of polarized light, and an optical integrator or bar integrator that guarantees that the object is evenly illuminated. The cylinder lenses are designed in such a way that the two ray beams that leave the polarizing beam splitter are combined to form a ray beam the aspect ratio of which is 1 to 1.6. The inventive lighting systems have an especially compact design and have especially good optical properties.
PCT/DE2000/002622 1999-08-31 2000-08-05 Lighting system using an afocal cylinder lens system WO2001016624A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19941272.3 1999-08-31
DE1999141272 DE19941272A1 (en) 1999-08-31 1999-08-31 Illumination system using an afocal cylindrical lens system

Publications (2)

Publication Number Publication Date
WO2001016624A2 WO2001016624A2 (en) 2001-03-08
WO2001016624A3 true WO2001016624A3 (en) 2001-08-30

Family

ID=7920194

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2000/002622 WO2001016624A2 (en) 1999-08-31 2000-08-05 Lighting system using an afocal cylinder lens system

Country Status (2)

Country Link
DE (1) DE19941272A1 (en)
WO (1) WO2001016624A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10109592C2 (en) * 2001-02-28 2003-10-30 Zeiss Carl Jena Gmbh Arrangement for generating a luminous field
DE10256271A1 (en) * 2002-12-03 2004-06-24 Carl Zeiss Jena Gmbh Illumination device for providing light field in projection system has lens inserted in light path between rear reflector and light field plane

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398082A (en) * 1993-05-20 1995-03-14 Hughes-Jvc Technology Corporation Scanned illumination for light valve video projectors
EP0753780A1 (en) * 1994-12-28 1997-01-15 Seiko Epson Corporation Polarized lighting apparatus and projection type display device
US5729306A (en) * 1994-09-30 1998-03-17 Sharp Kabushiki Kaisha Light splitting and synthesizing device and liquid crystal display apparatus including the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398082A (en) * 1993-05-20 1995-03-14 Hughes-Jvc Technology Corporation Scanned illumination for light valve video projectors
US5729306A (en) * 1994-09-30 1998-03-17 Sharp Kabushiki Kaisha Light splitting and synthesizing device and liquid crystal display apparatus including the same
EP0753780A1 (en) * 1994-12-28 1997-01-15 Seiko Epson Corporation Polarized lighting apparatus and projection type display device

Also Published As

Publication number Publication date
DE19941272A1 (en) 2001-03-08
WO2001016624A2 (en) 2001-03-08

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