LIQUID OPTICS WITH FOLDS LENS AND IMAGING APPARATUS
First Claim
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1. A zoom lens system comprising:
- an axially movable zoom lens group;
an axially stationary lens group comprising at least one liquid lens cell, the at least one liquid lens cell comprising a first and a second contacting liquids, a contacting optical surface between the contacting liquids having a variable shape; and
an optical element that redirects the radiation axis;
wherein the axially movable zoom lens group and the axially stationary lens group are aligned on a common optical axis and arranged to collect radiation emanating from an object side space of the zoom lens system and deliver the radiation to an image side space.
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Abstract
A high performance zoom lens system suitable for use with a camera is disclosed. The zoom lens systems employs redirection of the radiation axis, liquid optics and a movable lens group to provide optical performance over the zoom focal length range at focus distances from close to infinity. The system also provides compensation for undesirable thermally induced effects by adjustments of the zoom group and the variably shaped optical surface in the liquid lens cell.
137 Citations
8 Claims
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1. A zoom lens system comprising:
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an axially movable zoom lens group; an axially stationary lens group comprising at least one liquid lens cell, the at least one liquid lens cell comprising a first and a second contacting liquids, a contacting optical surface between the contacting liquids having a variable shape; and an optical element that redirects the radiation axis; wherein the axially movable zoom lens group and the axially stationary lens group are aligned on a common optical axis and arranged to collect radiation emanating from an object side space of the zoom lens system and deliver the radiation to an image side space. - View Dependent Claims (2, 3)
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4. A zoom lens system comprising:
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a movable lens group; a liquid cell lens group; and an optical element that redirects the radiation axis. - View Dependent Claims (5)
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6. A camera system comprising:
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a zoom lens comprising a movable lens group, a liquid cell lens group and an optical element that redirects the radiation axis; an image capture element positioned at a focal location of the zoom lens system. - View Dependent Claims (7, 8)
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Specification