Re: 1cm cube of optical glass ?

Samuel Gougeon wrote:
> Hi everybody,
> Finding a ~0.5"~1cm cube of glass of optical grade
> -- say BK7/A -- with at least 3 aligned optical
> faces (no corner) with standard wavefront
> distorsion tolerance prooves to be hard.
> I mean : I full cube, without diagonal face.
>
> Any solution on the newsgroup ?
> Read you
> Sam
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