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Visual Alignment Filters Overview

Visual Alignment Filter Overview: See all LaserShields® for Visual Alignment

NoIR LaserShields® : Visual Alignment Filter Overview

The human eye can be permanently injured from direct or reflected exposure to laser energy or other intense light sources such as high-power LEDs and plasmas. Retinal injury occurs from exposure to visible, such as the possible Blue Light Hazard effect, or near IR energy (400-1400 nm), while corneal or lens damage results from UV (190-400 nm) and IR (1400-11000 nm) exposure.

Safety eyewear, coupled with proper safety protocols and strong training, can prevent injury and should be worn in the presence of any intense light source.

NoIR safety eyewear is designed to absorb specific light energies, and eyewear must be selected by considering source wavelength(s) and peak irradiance, required optical density (OD), visual light transmittance, field of view, effects on natural colour rendition and frame comfort.

NoIR LaserShields® are manufactured using one of the three following technologies as determined by the performance required from the filter:

Narrow-band absorptive dyes permanently moulded into polymer lenses
Absorptive mineral glass
Hybrid polymer or glass filters combining absorption with reflective coatings

The LaserShields® listed below are CE-certified (EN207/208) for most lasers, including direct viewing of ultrafast pico- and femtosecond pulses (M LB7) and high-powered pulses (IR LB7). LaserShields® meet the requirements of 89/686 EEC Personal Protective Equipment and are classified Class 1 per rule 1 in Annex IX of the Medical Device Directive 93/42/EEC + 2007/47/EC.

The following specifications, and the clickable Data link showing the filter curves, are for guidance only. For more detailed information and professional advice, please contact us.

To view a particular LaserShield® CE Certificate, click on the Cert. link.

To purchase online, select the filter's name you require from the list below or from the Related Products list to the right. Alternatively, contact us for advice and purchasing options.

Visual Alignment

Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
ABL	0.77	✔	430-470 *		RB2	5+	190-400	Cert.
						2+	430-470	Data
	Amber
				* 0.1 W 2x10E-5 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
AL3	0.19	✔	180-315	D	LB6	5+	180-395	Cert.
			180-315	R	LB4	3+	395-540	Data
	Red		>315-395	D	LB4
			>315-395	IR	LB6
			>395-540	DIR	LB3
			488-540 *		RB3
				* 1.0 W 2x10E-4 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
AG2	0.53	✔	532 *		RB2	5+	190-400	Cert.
						2+	532	Data
	Pink
				* 0.1 W 2x10E-5 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
AG3	0.47	✔	518-523 *		RB2	5+	190-400	Cert.
			524-532 **		RB3	2+	518-523	Data
	Red		533-536 *		RB2	3+	524-532
				* 0.1 W 2x10E-5 J		2+	533-536
				** 1.0 W 2x10E-4 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
PBG	0.49	✔	445-450 *		RB1	5+	190-400	Cert.
			532 **		RB2	1.5+	445-450	Data
	Orange					2.5+	532
				* 0.01 W 2x10E-6 J
				** 0.1 W 2x10E-5 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
ABG	0.38	✔	450-470 *		RB2	5+	180-400	Cert.
			532 **		RB3	2+	450-470	Data
	Orange					3+	532
				* 0.1 W 2x10E-5 J
				** 1.0 W 2x10E-4 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
AGR	0.31	✔	532 *		RB1	5+	190-400	Cert.
			633-640 *		RB1	1.5+	532	Data
	Grey		5-2.5	NOIR 1	S CE	1+	633-640
				* 0.01 W 2x10E-6 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
MLA	0.26	✔	190-315	D	LB7	5+	190-430	Cert.
			190-315	IR	LB4	1.5+	525-532	Data
	Cyan		>315-400	DIRM	LB5	1.4+	632-659
			532 *		RB1	2.5+	640-650
			630-<636 *		RB1
			636-640 **		RB2
				* 0.01 W 2x10E-6 J
				* 0.1 W 2x10E-5 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
RBA	0.38	✔	400-488 *		RB1	5+	190-400	Cert.
			633-635 *		RB1	1.5+	405-488	Data
	Green		647 *		RB1	1.8+	633-635
				* 0.01 W 2x10E-6 J		1.3+	647


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
BGR	0.29	✔	455-485 *		RB1	5+	190-400	Cert.
			532 *		RB1	1.5+	440-470	Data
	Brown		633-640 *		RB1	1.5+	532
			5-2.5	NOIR 1	S CE	1+	633-640
				* 0.01 W 2x10E-6 J		1.3+	647


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
RT1	0.40	✔	430-445	DIR	LB3	5+	190-430	Cert.
			532	DIR	LB3	3+	430-445	Data
	Beige		805-825	DIR	LB3	3+	532
			>825-950	DIR	LB3	3+	805-825
			>950-1064	DIR	LB2	2+	>825-950
				DIR	LB3	3+	>950-1064


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
RT2	0.10	✔	430-445	DIR	LB1	5+	190-430	Cert.
			532	DIR	LB3	1.5+	430-445	Data
	Grey		610-670	DIR	LB1	3+	532
			640-650	DIR	LB2	1+	610-670
			805-825	DIR	LB3	2+	640-650
			825-950	DIR	LB2	3+	805-825
			950-1064	DIR	LB3	2+	>825-950
				DIR		3+	>950-1064


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
ZSA	0.1	✔	180-315	D	LB7	6+	190-400	Cert.
			180-315	IR	LB4	3+	532	Data
	Purple		>315-390	DIRM	LB5	3+	561
			532 *		RB3	2+	654-664
			561 *		RB3	3+	659
			659 *		RB3
				* 1.0 W 2x10E-4 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
RA2	0.4	✔	630-<638 *		RB2	5+	190-400	Cert.
			638-<652 **		RB3	2+	625-660	Data
	Aqua		652-660 *		RB2
				* 0.1 W 2x10E-5 J
				** 1.0 W 2x10E-4 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
RA3	0.32	✔	630-<633 *		RB3	5+	190-400	Cert.
			633-<656 **		RB4	3+	625-660	Data
	Aqua		656-660 *		RB3
				* 1.0 W 2x10E-4 J
				** 10 W 2x10E-3 J


Filter	%VLT	EN170	λ (nm)	Mode	Rating	OD	λ (nm)	Docs
DIA	0.39	✔	180-315	D	LB6	5+	190-380	Cert.
			180-395	R	LB4	1.5+	630-700	Data
	Green		>315-395	D	LB4
			605-675 *		RB1
			>675-695 **		RB2
				* 0.01 W 2x10E-6 J
				** 0.1 W 2x10E-5 J

CAUTION
Elliot Scientific recommends you consult your laser safety officer, appropriate laser safety standards and laser system documentation to ensure correct choice of eyewear and safe laser use. As eyewear offers protection only against incidental exposure to specified beam energies, the incorrect choice and use of eyewear may lead to serious personal injury or blindness.

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