I haven’t searched but if someone does (or lives near that surplus shed). Here’s what I measure:
Focal length ~10mm (slide moves ~7.0mm but the LED has some space over it. Mine also has an o-ring between bezel and lens that seems to be flattening out so the focus is a little blurred unless I unscrew the bezel a partial turn)
Lens diameter outside ~ 21.8mm and inside bezel is ~23.1mm
Lens diameter inside at convex section ~17.7mm and bezel opening ~17.8mm
Lens height ~8.2mm (total); height at lip ~2.5mm)
There are large and small bezel versions, I’m assuming mine is for the smaller/narrower lens.
Anybody tried polishing the lens (obviously won’t remove imperfections inside the dome)?
EDIT: Might be something out there … glass or plastic? diameter the outer or inner measure? coal length may be wrong …
Anybody got a SK78 to see if the lens is glass and fits (gcbryan said it was just barely larger in old BLF post)?
http://www.leddna.com/sipik-sk78-cree-q3-wc-150-lumen-convex-lens-led-flashlight-black-flashlight/