The manufacture of contact and intraocular lenses has exacting dimensional requirements, including center thickness and sagitta. Bristol Instruments offers non-contact, real-time measurement of lenses with sub-micron accuracy. Our thickness gauges also include the capability to measure a material’s group index for exact characterization.
- Simultaneous measurement of center thickness and sagittal height
- Non-contact optical measurement technique will not damage or deform your material
- Measurements can be made within a wet cell, allowing you to keep the lens hydrated and maintain accuracy
- Included Opti-Cal ™ software offers a QC Mode that ensures mistake-free PASS/FAIL measurements for engineering, QC and production personnel