Patent ID: 9065993
Filing Date: 2015-06-23
Classification: G02B,H04N

Abstract:
1. A method of fabricating a lens for a camera system, comprising: specifying first mean transfer function (“MTF”) requirements for the lens within a depth of field (“DOF”) range of the lens along a depth axis; specifying second MTF requirements for the lens outside of the DOF range and within a macro range of the lens along the depth axis, wherein the macro range is distinct and separate from the DOF range, wherein the macro range is a near field relative to the DOF range; and fabricating a lens having a physical shape or pattern according to the first and second MTF requirements such that the lens has a second in-focus field of view (“FOV”) within the macro range that is smaller than a first in-focus FOV within the DOF range by transferring sharpness from a peripheral viewing region within the macro range into a central viewing region within the macro range.