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December 1999

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Subject:
From:
Glenn Pelkey <[log in to unmask]>
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Date:
Tue, 21 Dec 1999 14:28:47 PST
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Here's your standards list, but not sure about the cumulative exposure
question.

IEC 60825-1, 60825-2
EN60825
ANSI Z136.1, Z136.2
FDA CDRH 21 CFR 1040 (US, only applicable to lasers at this point.)

Glenn

Bob Sechriest <[log in to unmask]> Wrote:
|
| Looking for a source of information concerning safety issues of working with
high intensity LEDs. I
| know that looking directly at the LEDs is harmful, and there is a
specification that dictates how
| long you need to look at a light source of  known intensity before eye
damage occurs. I need to find
| the spec and its source. I would also be interested in learning if the
effects of viewing LEDs are
| cummulative or not. ie does looking at an LED for 30 sec give the same
effect as looking at the LED
| for 3 sec  10 separate times. thanx.
| Bob
| I have been most impressed with the wealth of knowledge willingly shared on
[TN]. Thank you all and
| Merry Chistmas!!!!!!!!

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