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Spectral Distribution Glasses


Victor Roberts

Jan 1, 1970
I'm cleaning out some old piles of paper in my office and
came across a pair of spectral distribution glasses that
Philips gave out at a Light Fair or IES meeting, probably
around 2000, based on the "layer" in which they were found.

These look like 3-D glasses, but resolve the SPD of any
light source the wearer looks at. Rather neat, if you can
find a pair.

Vic Roberts Rogues Gallery
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