Chris,

Try contacting Donald Drozdenko at HP (Aligent) at 408-435-5807.  Don headed
the testing / certification efforts for HP's Laser & Led products back when
825 first emerged.  Another person who may be able to help is Dr. Joseph
Tajnai (408)435-6331, also from HP and member of TC76.

Good Luck,
George

-----Original Message-----
From: Maxwell, Chris [mailto:chr...@gnlp.com]
Sent: Tuesday, October 17, 2000 11:34 AM
To: 'EMC-PSTC Internet Forum'
Subject: Laser Safety Calculations



All,

I too share the sentiments of another member of the group that the
calculations for laser safety in EN 60825-1 are made somewhat more difficult
to follow due to the difficulty of reading the diagrams and the symbols.  I
myself have looked at the diagrams a few times and can't figure out what
symbol is representing what angle ...

I would love to see a few examples and more complete descriptions of the
nomenclature.
Is there a text out there, either commercial or from IEC that goes through
these calculations in more detail?  

Thanks in advance

Chris Maxwell, Design Engineer
GN Nettest Optical Division
6 Rhoads Drive, Building 4  
Utica, NY 13502
PH:  315-797-4449
FAX:  315-797-8024
EMAIL:  chr...@gnlp.com



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