Before we introduce a lot of relevantknowledge including types, principle of laser protective goggles, how to chooseand buy, etc., today we are one of the types detailed introduction for you.
4. The explosive laser glasses
Structure: (1) will be a transparentlayer of special chemical thin film coated on the flat lens (contact incidentlight side). The glasses, observing objects clearly distinguishable. Specialchemical membrane containing 1% carbon black lead azide of polyvinyl alcoholfilm, thickness of 10 (m.
(2) the protective principle: black carbon canabsorb ultraviolet band to the far infrared light band is very wide range ofelectromagnetic radiation, when the laser incident more than amount of injurieswould cause blackening film chemical explosion, make the lens completelyopaque, so as to protect the eyes from laser damage. No selectivity to thewavelength of incident laser.
(3) note: a new laser output of laser and longpulse laser protection; B because of the explosion reaction time is 20 (s, doesnot apply to Q switch pulse laser protection; c c film set off after dark, needto change the lens, which can only be a one-time use.
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