Unknown device / Physics equipment. Please identifiy....

AI Thread Summary
The discussion revolves around identifying a device initially thought to be a polarimeter due to its focusable optical target with three green lines. Further investigation revealed that the device is not a standard polarimeter but rather a lensometer used in optometry. The lensometer features white pens that dip in ink to mark measurements on a surface, confirming its medical application rather than a scientific one.
Eecinee
I'm stumped by this one... Any idea what it is? Inside there is a focusable optical target with 3 green lines. The white "pens" dip in ink and mark something. Any ideas?

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This does not appear to be any sort of standard polarimeter. This does not explain the white pens that mark on some surface.
 
Figured it out.. thought it was physics / science related but actually it's medical. It's a lensometer for optometry.
 

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