I think this pre-dates Baird. It is identical to the 30-mirror scanner that was used by Lazare Weiller in 1889. If you look carefully each mirror is at a slightly different angle (most easily seen on one of the pictures where it goes from maximum angle to minimum) so a single spinning mirror also does horizontal scan too.
Needs very accurate machining to register the mirrors.
Pretty darned rare.
Craig
Needs very accurate machining to register the mirrors.
Pretty darned rare.
Craig
