Laser protective goggles 800-1700nm visible light transmittance 40%

Laser safety goggles are a kind of efficient and safe goggles made of polymer materials and light absorbing materials. Its optical safety performance fully meets the European standard EN207A1: 2002. Laser safety goggles are comfortable, beautiful, safe and reliable to wear. They adopt the absorption principle: they are not selective for the incident angle of the light source and can fully protect lasers and strong light in specific bands.

Product features：Typical laser wavelength: 980&1064&1320nm、 Transmittance: 40%、 O.D optical density: 800 - 1700nm O.D 4+ 900 - 1100nm O.D 5+、 L-Rating (EU standard): 800 - 1400nm DIR LB4, 1400 - 1700nm DI LB3、 SEM-EP laser protective glasses、 Protection range: 800 - 1700nm、 Applicable laser wavelength: 808nm, 980nm, 1064nm, 1320nm, 1470nm etc

Application area：Semiconductor laser debugging and ND:YAG laser protection

Unit Price

Please contact customer service for a discounted quote.

Part Number

SEM-EP-8

Lead Time

Please contact customer service for lead time.

Stock

Please contact customer service for stock availability.

Add to Inquiry

Inquire online

General Parameters

Download Document

Dimensional Drawing

Advantages and disadvantages of absorption and reflection laser protective goggles:

Reflective laser protective goggles are coated with multiple layers of reflective medium on the surface of the base optical glass.

Advantages:

1. Simple process;

2. High visible light transmittance;

3. High attenuation rate;

4. Fast light reaction time <10-9 seconds;

Disadvantages:

1. It has serious selectivity for light sources. The incident light source must be facing the protective mirror surface (the normal direction of the incident light mirror surface) to maximize its protective effect and vice versa;

2. The reflective medium layer is easy to fall off and it is not easy to observe with the naked eye after falling off. This is also the most dangerous. The reflective medium layer in China generally falls off in about a year. The higher the light attenuation rate, the thicker the dielectric layer, and the easier it is to fall off.

Absorption protective goggles add special wavelength absorbers to the base material PMMA or P.C.

Advantages:

1. No selectivity for light sources, can safely protect various diffuse reflected lights;

2. High attenuation rate;

3. The surface is not afraid of wear and tear, even if there are scratches, it does not affect the safety protection of light;

4. Fast light reaction <10-9 seconds;

Disadvantages: Low visible light transmittance.

Protective goggles PN#	protective wavelength range(nm)	For typical laser	Typical laser wavelength(nm)	Optical density	Visible light transmittance(%)
SEM-EP-1	200-540	Frequency-doubled Nd:YAG laser Ion laser	532 514	4+ 4+	50
SEM-EP-2	600-700	He-Ne laser	632.8	4+	30
SEM-EP-3	800-1100	Nd:YAG laser	1064	4+	40
SEM-EP-4	200-540 800-1100	Ion laser Frequency-doubled Nd:YAG laser Semiconductor laser YAG laser	514 532 808,810,904,980 1064	4+ 4+	40
SEM-EP-5	10600	CO₂ laser	10600	4+	60
SEM-EP-8	800-1700	Semiconductor laser Fiber laser	1510,1530,1610 1550,1350	4+	40

SEM-EP-8 transmission power test (taking 1578nm semiconductor DFB 1W laser test as an example)


Power before laser protective goggles	Power after laser protective goggles

Laser standard and classifications

US laser safety standard ANSI Z136.1

ANSI Z136.1 standard: measured by optical density (OD). The logical relationship between optical density OD and transmittance T: D=-log10 T.

European laser safety standard EN207/EN208

EN207/EN208 standard: consider optical density OD, and also consider damage threshold (power/energy density changes over time).

According to the US laser safety standard ANSI Z136.1 and the European laser safety standard EN207/EN208, lasers can be classified according to the following standards.

Class	Definition	Suggestion
1	Non-hazardous	Laser protective goggles are not required
1M	Visible laser (400-700nm) safe for goggles, without optical magnification	Laser protective goggles are not required
2	Visible laser (400-700nm) safe for blinking within 0.25 seconds	Laser protective goggles are not required
2M	Visible laser (400-700nm) safe for blinking within 0.25 seconds with optical magnification	Laser protective goggles are recommended
3R	It may be unsafe to look directly at the laser, the maximum permissible exposure (MPE) is 5 times that of Class 2 laser in the visible light part and 5 times that of Class 1 laser in the invisible light part	Laser protective goggles are recommended
3B	It is unsafe to look directly at the laser, and diffuse laser should be avoided as much as possible	Laser protective goggles are recommended
4	It is unsafe to look directly at the laser and its diffuse laser	Laser protective goggles must be used

Optical Density	Transmission%	Attenuation Factor
0	100%	1
1	10%	10
2	1%	100
3	0.1%	1000
4	0.01%	10000
5	0.001%	100000
6	0.0001%	1000000
7	0.00001%	10000000

Laser protective goggles selection guide

1. Laser characteristics: output wavelength and power density of the laser.

2. Optical Density (OD): The larger the OD value, the stronger the protection ability of laser protective goggles.

3. Visible Light Transmittance (VLT): When the VLT value is less than 20%, laser protective goggles need to be used in a well-lit environment.

4. Frame: Whether wearing myopia goggles, facial contour.

Ordering Information

PN#: SEM-EP-1 Name: Laser protective goggles Unit price: 1350 yuan/piece Stock quantity: 20 pieces

Description:

Protection wavelength range (nm): 200-540; For typical lasers: ion lasers; frequency-doubled Nd:YAG lasers,

Typical laser wavelengths: 514, 532nm; Optical density: 4+; Visible light transmittance (%) 50

PN#: SEM-EP-2; Name: Laser protective goggles; Unit price: 1450 yuan/piece; Stock quantity: 20 pieces

Description:

Protection wavelength range (nm): 600-700; For typical lasers: He-Ne lasers; Typical laser wavelengths: 632.8nm; Optical density: 4+; Visible light transmittance (%) 30

PN#: SEM-EP-3; Name: Laser protective goggles; Unit price: 1350 yuan/piece; Inventory quantity: 20 pieces

Description:

Protective wavelength range (nm): 800-1100; For typical lasers: Nd:YAG laser; Typical laser wavelength: 1064nm; Optical density: 4+; Visible light transmittance (%) 40

PN#: SEM-EP-4; Name: Laser protective goggles; Unit price: 1750 yuan/piece; Inventory quantity: 20 pieces

Description:

Protective wavelength range (nm): 200-540, 800-1100; For typical laser types and wavelengths: ion laser Light 514nm; frequency-doubled Nd:YAG laser 532nm; semiconductor laser: 808, 810, 904, 980nm; YAG laser

optical: 1064nm; optical density: 4+; visible light transmittance (%) 40

PN#: SEM-EP-5; Name: laser protective goggles; unit price: 1350 yuan/piece; inventory quantity: 20 pieces Description:

Protection wavelength range (nm): 10600; for typical lasers: CO2 lasers; typical laser wavelength: 10600nm; Optical density: 4+; Visible light transmittance (%) 60

PN#: SEM-EP-8; Name: Laser protective goggles; Unit price: 1450 yuan/piece; Stock quantity: 20 pieces

Description:

Protective wavelength range (nm): 800-1700; For typical lasers: semiconductor lasers, fiber lasers; Typical

Laser wavelengths: 1510, 1530, 1610, 1550, 1350nm; Optical density: 4+; Visible light transmittance (%) 40

Product Recommendation