half mirror

[iconoclastica]

A week ago I got a Nikon epi-illuminator which I would like to put to use. Only the mirror is broken. Now I globally know this was a half transparent mirror, but what is the technical name for it I'd be looking for when searching for a replacement? I get confused by all the laser optics stuff..

[Hobbyst46]

Assuming you refer to the flat mirror installed at an angle of 45 degrees above the nosepiece: it is a 50/50 beam splitter.

[iconoclastica]

Excellent, now I am getting proper search results. I see the prices vary manyfold. Are there quality issues I ought to be aware of?