Optical Assembly for a Compact Wide Field of View Digital Camera with Low First Lens Diameter to Image Diagonal Ratio
AssigneeNavitar Industries, LLC
InventorsRussell Hudyma, Michael Thomas, Ian Wallhead, Arash Ghorbani
Life of this patent
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Abstract
An optical assembly for a point action camera or other compact digital camera having a wide field of view, includes multiple lens elements, including at least one lens element that has an aspheric lens surface. The optical assembly is configured to provide a field of view in excess of 120 degrees. The optical assembly includes a ratio of a diameter of a first lens element at the object end of the optical assembly to an image diagonal is less than approximately 3.
Claims17
(canceled)
A lens element comprising an aspheric surface that is configured to correct higher order astigmatism in an optical assembly configured for a point action camera having a wide field of view in excess of 120 degrees, wherein said aspheric surface comprises an aspheric sag less than approximately 12 microns.
A lens element comprising an aspheric surface that is configured to correct higher order astigmatism in an optical assembly configured for a point action camera having a wide field of view in excess of 120 degrees, wherein said aspheric surface comprises an aspheric sag slope less than approximately 15 microns per millimeter.
Dependencies are inferred from the claim text.