18958272. OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS (Alcon Inc.)
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OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS
Organization Name
Inventor(s)
XIN Hong of FORT WORTH TX (US)
ZORAN Milanovic of FORT WORTH TX (US)
OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS
This abstract first appeared for US patent application 18958272 titled 'OPHTHALMIC LENS HAVING AN EXTENDED DEPTH OF FOCUS
Original Abstract Submitted
In certain embodiments, an ophthalmic lens includes an optic having an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface includes a first zone extending from the optical axis to a first radial boundary and a second zone extending from the first radial boundary to the edge of the optic. The first zone includes an inner region and an outer region separated by a phase shift feature, the phase shift comprising a ridge extending outwardly from the inner region and the outer region.
