ClearWave Contact Lens Measurement
LumetricsRequest Info
Lumetrics, the world’s leading manufacturer of measurement technology, produces ClearWave™ for testing contact lenses in both wet and dry states. ClearWave™ measures sphere, cylinder, axis, and aberrations such as coma and spherical aberration. Additionally, ClearWave™ provides detailed wavefront maps and Zernike coefficients for the new field of customized contact lenses and also measures multizone contact lenses (bifocals and most multifocal designs).
Lumetrics was awarded a patent for a combination wavefront sensor and thickness measurement system. This allows manufactures to inspect for wavefront aberrations, Center Thickness, Sagital Height, Diameter, and Radius of Curvature all on a single machine without moving the part. This innovation provides easier inspection of parts with less handling and chance of error, fewer operators, and better compliance with strict FDA standards. The combination system uses the core technology of the ClearWave in combination with the industry standard OptiGauge thickness measurement system.
The primary optical sensor in ClearWave™ is a Shack-Hartman wavefront sensor. Advantages of these sensors include small size, ruggedness, accuracy, and vibration insensitivity. The sampling density in ClearWave™ is 0.1 millimeters, allowing small features to be revealed. Over larger areas, the quantity of samples (5200 samples in a 7mm analysis diameter) results in high repeatability and accuracy.
ClearWave™ has been designed to assist contact lens manufacturers in fast and accurate screening of standard and multifocal lenses. The wide open loading area leaves room for automation equipment to move contact lenses through the measurement path. In a laboratory environment, a variety of mounts and wet cells enable easy part handling.
http://www.lumetrics.com
/Buyers_Guide/Lumetrics/c8838
Published: July 2015
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