SED Machine Collimator 1/2 Doublet
I sound like a repeating record. Marin Anderson [CIT] and I bonded SED machine doublet camera elements 3/4 today. The collimator is a 95-mm f/4 lens with a telectrinc input.
Above is a stop motion video of the col 1/2 bonding performed by Marin Anderson and Nick Konidaris [Caltech]. The positive element is a CaF2 (ISP Optical), while the negative element is a fused silica (Heraeus suprasil). You'll note that there are several key elements in order of appearance: a checklist, blue tape, pink lens cleaner, kapton-tape shims applied with a tongue depressor, Sylgard-184 applied with pipettes, and q-tips for cleaning the lens.
New Parts in Hand
In addition to bonding, some parts have completed fabrication. So far we now have the lens barrels that hold the rainbow camera, collimator, and camera!