The Lumenarium: The official blog of Lumetrics, Inc.

Advancing Quality Assurance with White Light Interferometry

Posted January 14, 2022 by Kristin

Non-Contact Measurement Supports Growth in Consumer Electronics Market

The demand for touchscreen technology continues to outstrip supply—this is a trend that shows no sign of waning as 2022 gets underway. Recent market statistics published by Counterpoint show that shipments of cell phones in the U.S. market have grown 27% despite shortages in raw materials including silicon chips which are key components for their production.

filed under: cell phone, Non-Contact Measurement, Non contact thickness measurement, QA/QC, interferometry

Market Outlook for Non-Contact Medical Implant Testing

Posted August 20, 2021 by Kristin

White Light Interferometry Applications Advance Capabilities and Precision

Over the past several years, exciting advancements have been made in the market for non-contact, light-based measurements for medical implants such as balloons and catheters. Emerging from the research and development in this area are more precise, automated, and standardized methods which use white light interferometry technology to overcome the limitations of the conventional micrometer gauge used for these purposes.

The ability to accurately measure the thickness of silicone coatings is key to the implant manufacturing process. Whether dip or spray coating methods are used the OptiGauge II can measure the additive thickness in process without the need for destructive testing.

filed under: medical device measurement, Non-Contact Measurement

Optical Interferometry FAQs: Dr. Mike Marcus Talks Pharmaceutical and Medical Device Testing

Posted July 21, 2021 by Kristin

Dr. Mike Marcus, Lumetrics Senior Scientist works as part of the development team to design and manufacture precision non-contact thickness measurement and optical inspection systems. While at Kodak, he developed the field of low-coherence interferometry for use in product assessment and manufacturing process monitoring and control.

filed under: medical device measurement, Non-Contact Measurement, Opthalmics, 503B testing

Developing 503B Test Standards for Ophthalmic Liquids and Oral Medications

Posted July 08, 2021 by Kristin

The FDA’s designation for 503B outsourcing facilities has opened a fast-growing, high-demand segment in the compounding pharmacy market. There is tremendous potential to improve the purity and sterility of both human and veterinary drugs with the use of cGMP, or current Good Manufacturing Practices. While the FDA regulates adherence to the manufacturers’ quality, training, and control processes, pharmaceutical manufacturers must determine their own testing protocols and test equipment that make up cGMP.

filed under: Non-Contact Measurement, liquid refractive index measurement, 503B testing

Lumetrics Granted New Patent: Toric Intraocular Lens Measurement Apparatus and Method

Posted January 26, 2017 by Kristin
This latest Lumetrics patent is for a device to physically rotate an intraocular lens inside the confined space afforded in a measurement cuvette.  There are times when rotating the data gathered using software is insufficient and the sample must physically be rotated.  This device maintains the alignment of  intraocular lens optical axis with that of the measurement device with which it is paired.  During the rotation the need for realignment is reduced or eliminated.  Read more about this new patent here.

filed under: Non-Contact Measurement

Precision Wedge Angle Measurement by Lumetrics Principal Scientist, Dr. Michael Marcus

Posted May 23, 2016 by Kristin

A customer approached Lumetrics with a need to determine  and certify the precision wedge angle measurement of low angle wedges in the range of 0.5 - 3.5° with a high degree of accuracy.   A custom fixture was designed and constructed which included x, y, z  and rotation stages with micrometer precision position feedback as shown in the diagram. 

filed under: Dimensional Measurement, glass thickness measurement, Lumetrics, Non-Contact Measurement, Thickness Measurement

Online Tubing Thickness Measurement

Posted February 15, 2016 by Kristin

Lumetrics is the leader in online tubing thickness measurement systems for the ophthalmic, glass, and medical device market.  Our engineering team has developed a new fixture that eliminates the problems of line sensitivity that give all online systems trouble.  The new fixturing provides for easy loading and accommodates line changeovers to different size tubing. Water is the enemy of all hydrophilic tubing production, and the OptiGauge provides the crucial inner diameter, outter diameter, and wall thickness readings that customers require.

filed under: Catheter Measurement, medical device inspection, Non-Contact Measurement, Non contact thickness measurement, OptiGauge, OptiGauge II, Thickness Measurement, tubing measurement

Thickness Measurement Files: 7 Things We Can Measure

Posted March 19, 2014 by Kristin

1) Absorbable Stents - Read a great article on how a New Standard Focuses on Testing of Absorbable Stents 

filed under: Catheter Measurement, cell phone, Dimensional Measurement, medical device inspection, NIST Traceable, Non-Contact Measurement, Non contact thickness measurement, Optical Interferometry, Thickness Measurement

Tested Samples: Rock salt thickness measurement

Posted February 26, 2014 by Kristin

A few Lumetrics engineers were sitting around talking about what sorts of things we have measured and what interesting, or ordinary, things we can measure the thickness of. So, as we are asked to make thickness measurements of different objects, or as we think of things that would be fun to measure, we'll be bringing them to you.  Next up- rock salt! Read More

filed under: Non-Contact Measurement, Non contact thickness measurement, Optical Interferometry, Thickness Measurement

Tested Samples: Depth Thickness Measurement

Posted February 25, 2014 by Kristin

From our file of “Thickness Measurement” challenges comes a depth measurement application. Here’s another aspect of thickness measurement that the OptiGauge is ideal for – high precision depth measurement. Read More

filed under: Non-Contact Measurement, Non contact thickness measurement, Optical Interferometry, Thickness Measurement

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