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Patent Searching and Data


Title:
PROJECTION LENS
Document Type and Number:
WIPO Patent Application WO2002050595
Kind Code:
A3
Abstract:
The invention relates to a projection lens that is composed of nine lenses with bilateral air-glass surfaces. The aim of the invention is to provide a lens or a series of lenses that guarantee the most effective light distribution across the entire object field while offering a projection quality that is greater than or equal to the projection quality of the of known technical solutions while creating technologically favorable glasses. To this end, the projection lens according to the invention meets the following requirements in their entirety: u >/= 12.8 DEG , 100 mm /= 1 DEG , sigma RBi

Inventors:
REINECKE WOLFGANG (DE)
LINGE HORST (DE)
Application Number:
PCT/EP2001/014627
Publication Date:
March 27, 2003
Filing Date:
December 12, 2001
Export Citation:
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Assignee:
OPTISCHE SYSTEME GOETTINGEN IS (DE)
WOLFGANG REINECKE INGENIEURBUE (DE)
REINECKE WOLFGANG (DE)
LINGE HORST (DE)
International Classes:
G02B9/64; G02B11/34; G02B13/04; G02B27/18; (IPC1-7): G02B9/64; G02B11/34; G02B13/04
Foreign References:
EP1134606A12001-09-19
DE4212067A11993-10-14
US4070098A1978-01-24
US3938883A1976-02-17
US4025169A1977-05-24
US4566764A1986-01-28
US6160671A2000-12-12
US5973848A1999-10-26
EP0548529A11993-06-30
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