Invention Grant
- Patent Title: Ophthalmic apparatus with corrective meridians having extended tolerance band
-
Application No.: US15467550Application Date: 2017-03-23
-
Publication No.: US10649234B2Publication Date: 2020-05-12
- Inventor: Huawei Zhao
- Applicant: ABBOTT MEDICAL OPTICS INC.
- Applicant Address: US CA Santa Ana
- Assignee: Johnson & Johnson Surgical Vision, Inc.
- Current Assignee: Johnson & Johnson Surgical Vision, Inc.
- Current Assignee Address: US CA Santa Ana
- Agency: Johnson & Johnson Surgical Vision, Inc.
- Main IPC: A61F2/16
- IPC: A61F2/16 ; G02C7/06 ; G02C7/04 ; G02C7/02

Abstract:
The embodiments disclosed herein include improved toric lenses and other ophthalmic apparatuses (including, for example, contact lens, intraocular lenses (IOLs), and the like) that includes one or more refractive angularly-varying phase members, each varying depths of focus of the apparatus so as to provide an extended tolerance to misalignments of the apparatus. Each refractive angularly-varying phase member has a center at a first meridian (e.g., the intended correction meridian) that directs light to a first point of focus (e.g., at the retina of the eye). At angular positions nearby to the first meridian, the refractive angularly-varying phase member directs light to points of focus of varying depths and nearby to the first point of focus such that rotational offsets of the multi-zonal lens body from the center of the first meridian directs light from the nearby points of focus to the first point of focus.
Public/Granted literature
- US20170276962A1 OPHTHALMIC APPARATUS WITH CORRECTIVE MERIDIANS HAVING EXTENDED TOLERANCE BAND Public/Granted day:2017-09-28
Information query
IPC分类: