Comments | grand_illiander: (без темы)

grand_illiander

(Untitled)

Jan 26, 2006 20:41

I had a laser safety training session today for our Class IV laser. It's surprising to discover that different wavelengths of light are absorbed, and damage, different parts of they eye. We operate in the infrared, telecommunications wavelengths, so any eye exposure would cause damage to the retna within microseconds. With a femto-second pulse ( Read more... )

Comments 2

plowne January 27 2006, 16:47:09 UTC

What wavelengths of infrared damage which parts of the eye?
Why is it important for this laser you're working with to be infrared?

Sure, write that opus of an opera, and enjoy every note of it.

grand_illiander January 27 2006, 17:22:29 UTC

From what I learned the basic breakdown is:

Visible (400-700nm wavelength) and Infrared (>700nm)- damage to the retina
UV-A (<400nm) - damage to the lens
UV-B & UV-C (<400nm) - temporary damage to the cornea (lasts up to 12 hours ( ... )