check it out

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sun Aug 15 13:37:28 1999

<I doubt very much if most CRTs are at all light-sensitive.

You kidding? Those phosphors are quite sensitive to light at the right
wavelength.

Everyone forgets a plumbicon (and predecessors) used a phosphor coated
target that the image impinged on and then was scanned with a electron
beam with the incident current sensed using an internal collector grid.
Maybe you had to work with the old mono camaras with a tube in it rather
than a CCD.

Allison
Received on Sun Aug 15 1999 - 13:37:28 BST