Anamorphic lens for digital projection
AssigneeJosef Schneider Optische Werke GmbH
InventorUdo Schauss
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Abstract
An anamorphic lens for a digital projection display system comprising a projection lens and an optical axis has an anamorphic factor between 1.3 and 2.0. The anamorphic lens includes a first afocal part placed in front of the projection lens and a second part placed behind the projection lens. The first part comprises a plurality of lens elements configured for magnification in a first direction transverse to the optical axis. The second part comprises at least one element configured for magnification in a second direction perpendicular to the first direction.
Claims4
An anamorphic lens for a digital projection display system comprising a projection lens and an optical axis, said anamorphic lens having an anamorphic factor between 1.3 and 2.0 comprising:
- (a) a first afocal part comprising a plurality of lens elements configured for magnification in a first direction transverse to the optical axis in front of the projection lens;
- and
- (b) a second part comprising at least one lens element behind the projection lens configured for magnification in a second direction perpendicular to the first direction.
Dependencies are inferred from the claim text.