Combined iris imager and wavefront sensor

A method of imaging an iris of an eye using an iris imaging system:

• sensing a wavefront of light reflected from the eye using substantially all of a detector array;
• establishing an initial tip-tilt and focus position for the iris imaging system based on the sensed wavefront;
• switching a majority of the detector array from wavefront sensing to iris imaging while maintaining a non-overlapping portion of the detector array for wavefront sensing;
• and
• imaging the iris with the majority of the detector array.

A method of imaging an iris of an eye using an iris imaging system:

• sensing a wavefront of light reflecting from the eye using substantially all of a detector array;
• performing tip-tilt and focus correction based on the sensed wavefront of the light reflection from the eye;
• switching substantially all of the detector array from wavefront sensing to iris imaging;
• while maintaining a non-overlapping portion of the detector array for wavefront sensing:
• imaging the iris with substantially all of the detector array to obtain a first iris image:
• switching at least a portion of the detector array from iris-imaging to wavefront sensing;
• sensing the wavefront of light reflecting from the eye using the at least a portion of the detector array;
• correcting tip-tilt and focus aberrations based on the sensed wavefront of the light reflecting from the eye by the at least a portion of the detector array;
• switching the at least a portion of the detector array from wavefront sensing to iris imaging;
• and
• imaging the iris with substantially all of the detector array to obtain second iris image.