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Message ID: 196     Entry time: Tue Dec 18 16:50:35 2007
Author: tobin 
Type: Update 
Category: SAFETY 
Subject: uvex laser safety glasses defective 
A few days ago we noticed what appeared to be a blotched, speckled fracturing of the coating of the "UVEX" laser safety glasses. These are the glasses with "transparent" (reflective to 1064nm) lenses and white frames that we keep in a box on top of a filing cabinet in the control room. Today Steve measured the transmission of these glasses and found 80% transmission of 1064nm in several cases.

Do not use the white, transparent "uvex" laser safety glasses until further notice. Steve has hidden them away so that you won't be tempted.

Below is attached a photo of a bad lens.
Attachment 1: bad-glasses.jpg  70 kB  | Hide | Hide all | Show all
Attachment 2: bad-glasses-zoom.jpg  95 kB  | Show | Hide all | Show all
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