US 11,885,706 B2
Method and system for measuring optical characteristics of a contact lens
Forrest R. Blackburn, Monroeville, PA (US); Joshua Hazle, Tampa, FL (US); and Patricia Martin, Jacksonville, FL (US)
Assigned to Transitions Optical, Ltd., Tuam (IE); and Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed by Transitions Optical, Ltd., Tuam (IE); and Johnson & Johnson Vision Care, Inc., Jacksonville, FL (US)
Filed on May 2, 2022, as Appl. No. 17/734,240.
Application 17/734,240 is a continuation of application No. 16/957,912, abandoned, previously published as PCT/EP2017/084708, filed on Dec. 28, 2017.
Prior Publication US 2022/0260455 A1, Aug. 18, 2022
Int. Cl. G01M 11/02 (2006.01); G01N 21/59 (2006.01); G01N 21/958 (2006.01); G02C 7/04 (2006.01); G02C 7/10 (2006.01)
CPC G01M 11/0285 (2013.01) [G01N 21/59 (2013.01); G01N 21/958 (2013.01); G02C 7/04 (2013.01); G02C 7/102 (2013.01); G01N 2021/9583 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for determining a transmittance of electromagnetic radiation through a contact lens in direct contact with an ocular surface, comprising:
measuring a first intensity of radiation reflected by at least a portion of an ocular surface with an intensity measuring device;
positioning a contact lens covering and in direct contact with at least a portion of the ocular surface;
measuring a second intensity of radiation transmitted through the contact lens that is reflected by at least one region of the ocular surface that is covered by the contact lens with the intensity measuring device; and
calculating a transmittance of electromagnetic radiation through the contact lens using the measurements of the first intensity and the second intensity.