Yellow DPSS Laser 561nm

COMMON TERMS USED IN CHART BELOW

* Optical density, or O.D. as is it is commonly known, refers to the attenuation factor of the filter to the base 10. Therefore, a filter with an OD of 2 attenuates the laser by a factor of 10 to the 2nd or 100, an OD of 3 attenuates the laser beam by a factor of 1,000, an OD of 4 by a factor of 10,000.
* Visible Light Transmission, or VLT as it is commonly known, refers to the attenuation of light by a filter in the visible spectrum. It is commonly expressed as the percentage of the visible daylight spectrum light allowed to pass thru.
* Central Europe Certified, or CE refers to products sold in the European Union that must be CE marked where a relevant European Directive exists.

Laser Safety Eyewear
Filter Name	CE	Wavelength	OD	VLT	Filter Color	Filter Material
Argon/HeNe Alignment Item # LSEP-AHA	No	190-400nm 510-670nm	5+ 1.5+	2%		PolyCarb
BROADBAND ALIGNMENT Item # LSEG-G15	No	200-382nm 490-604nm 605-770nm 950-1355	7+ 1.5+ 2+ 5+	17%		Glass
ZS2 Item # LSEP-ZS2	Yes	190-400nm 532nm 561nm	6+ 6+ 6+	19%		PolyCarb
ZSA Item # LSEP-ZSA	Yes	190-400nm 532nm 561nm 654-664nm 659nm	6+ 3+ 3+ 2+ 3+	10%		PolyCarb