Lens Inspection Station. Lenses from Lambda Research Optics arrived in batches and were inspected for dimension, optical quality, and gross figure.
Large, ZnS (Cleartran) front collimator lens. This meniscus lens is a bit wider than 6 inches and has a sag (backside relief) of nearly one inch.
LiF lens
Thick LiF lens (#3 in collimator). It is about 4 inches diameter and about one inch thick.
Thin LiF lens (part of the collimator).
ZnSe lens
Zoom of ZnSe lens.