The Lumenarium: The official blog of Lumetrics, Inc.

Refractive Index Measurement System for Contact Lens in a Natural Hydrated State

Posted February 01, 2019 by Kristin

A collaboration between Lumetrics and Johnson & Johnson

Accurate refractive index of the contact lenses is one of the most important parameters needed to properly evaluate the lens performance. Measurements of the refractive power and other optical properties of the lenses are typically conducted in solution, and converted to in-air performance. Such an approach is very sensitive to errors in the refractive indices of both the lens and the solution.

filed under: contact lens, contact lens inspection, Non contact thickness measurement, Opthalmic

Lumetrics®, Inc. Research selected for presentation at 2013 OptiFab Conference

Posted December 05, 2013 by Kristin

Rochester, NY‐ November 4, 2013‐ The leading manufacturer of non‐contact measurement
solutions, Lumetrics®, Inc. was selected to present at the
prominent 2013 OptiFab conference and exhibition. Michael Marcus, Lumetrics Principal Scientist and former
Kodak inventor, presented his work on using non‐contact
thickness and distance measurements for quick and precise
measurements of refractive indices of polymers and glass
in air and liquid.  Read More

filed under: contact lens inspection, contact lenses, Dimensional Measurement, Engineering, intraocular lenses, medical device inspection, Opthalmics, optical interferometry, Optical Measurement, optifab 2013, quality control, refractive index, refractive index measurement, Thickness Measurement