Date: Tue, 05 Feb 2002 11:01:33 -0500

Author: John McIntyre

Subject: Re: Laser Purchase


Richard Berg wrote:

> Wow!! You actually use a 30 mW laser in lectures? Our safety people will
> not allow anything over 5 without our jumping through all kind of hoops -
> big signs, goggles, limitations on how close the students can get, etc.

The mandated tag on the laser reads "30mW Max Output." I think it was marketed as
16mW. It is certainly much brighter than our laboratory lasers.

Hmm, our safety people made us stop using any cathode ray tube powered by a tesla
coil (we now use the Nakamura 400 volt tube), but they've never said anything about

John McIntyre
Physics - Astronomy Domine Dept
Michigan State University