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Optical Components and
Lens Assemblies

The Thickness Gauge systems from Bristol Instruments quickly and easily measure material thickness, a critical dimension for today's high performance optical components and systems. Our gauges are used for the production and inspection of lenses, lens assemblies, and optical flats.

Our Thickness Gauge systems are typically integrated into the production process. For example, they can be installed directly onto CNC fabrication equipment. They are also used extensively in Quality Control Laboratories.


  • Non-contact measurements will not scratch even the softest materials or coatings.


  • Simultaneously measures all elements and air gaps of assembled lens stacks.


  • PASS/FAIL Quality Control software simplifies monitoring during the production process.


  • Straightforward operation provides consistent results across all operators.


Straightforward Operation

This video demonstrates how quickly and easily lens doublets can be measured to determine if they are within a specified tolerance.

Reproducibility of Measurement Results

This video highlights how different operators can reliably and accurately measure the same part.

Contact us to schedule a FREE Analysis of your part.

Send us your part and we will provide a live video demonstration of our measurement capabilities.