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Control Airgaps and Measure Lens CT During Assembly
with Low-Cost Vertex Height Measurement

The CalcuLens-Vertex™ accessory measures lens center thickness (CT) and vertex height relative to a predefined reference surface during assembly on the Laser Alignment & Assembly StationTM (LASTM) using a custom high-NA Vertex Measurement Objective (VMO) and accompanying CalcuLensTM Vertex Measurement software module. During assembly, the VMO allows operators to accurately measure the z-position of the lens vertex within ±2.5µm by automatically finding the sharpest focus, thus allowing tighter control of airgaps. Accurate vertex-to-vertex CT measurements of single element and cemented doublets/triplets requiring excellent optical axis alignment are also made easy utilizing the centration abilities of the LAS™.

Category: Laser Alignment