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US 2022/0179181 A1Published application
High Etendue Modular Zoom Lens Assembly
AssigneeNavitar, Inc.
InventorChad Byler
Life of this patent
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Abstract
A high etendue modular finite conjugate lens assembly has a zooming component with multiple lens groups, including four lens groups that each feature a doublet, and a lens attachment lens assembly comprising a fifth doublet, wherein the lens assembly is configured to exhibit between 0.45 and 4.65 mm2sr of etendue, and a ratio of highest to lowest magnification between 5.5:1 and 16:1, and a magnification of at least 2× at one or more points of a zoom range.
Claims20
A modular finite conjugate zoom lens assembly, comprising:
- (a) a core zoom module including four doublets;
- (b) a lens attachment module coupled at an object end of said core zoom module that includes a lens attachment lens assembly comprising a fifth doublet;
- and
- (c) wherein said core zoom module includes two movable lens groups disposed between a pair of static lens groups;
- and
- (d) wherein said modular finite conjugate zoom lens assembly exhibits an etendue between 0.45 and 4.95 mm2sr.
3 more elements
Dependencies are inferred from the claim text.