Laser Safety Window – Acrylic 406 Sheet | OD 5+ @ 190–375 & 10,000–11,000 nm

Close-up of an integrated laser safety viewing window installed in an industrial machine enclosure

Engineers in a semiconductor cleanroom observing enclosed laser processing equipment through integrated laser safety viewing windows

Medical laser treatment room featuring integrated laser safety viewing windows and observation panels

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Laser Safety Window – Acrylic 406 Sheet | OD 5+ @ 190–375 & 10,000–11,000 nm

Name: Laser Safety Window – Acrylic 406 Sheet | OD 5+ @ 190–375 & 10,000–11,000 nm
Brand: Laser Safety Industries
Price: 85.00 USD
Availability: InStock

SKU: 100-406-001

Size: 12" x 12" x .118"

Variant

Price:

$85.00

Quantity:

🚚In stock items ship same or next day | Typically delivered in 1–2 business days | Overnight shipping available—call for timing

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Optical Density

OD 5+ @ 190-375 nm
OD 5+ @ 10,000-11,000 nm

Understanding Optical Density

Visible Light Transmission

82%

Understanding Visible Light Transmission

Material

Acrylic

Frequently Asked Window Questions

View our Laser Safety Windows FAQ for information related to window materials, installation options, and product specifications.

View our UV & Excimer Laser Safety FAQ for information related to 190–420nm wavelengths.

The 406 acrylic laser safety window provides OD 5+ protection from 190 to 375 nm and 10,000 to 11,000 nm, making it well-suited for enclosures using Excimer and CO₂ lasers.

Manufactured from dark-tinted, cast acrylic, the 406 sheet attenuates both UV and far-infrared radiation while offering high durability and structural stability for laser containment. Its darker coloration results in lower visible light transmission and is often selected in environments where visual contrast or perceived safety is prioritized.

Note: Laser safety windows are designed for use in enclosed environments to help contain laser radiation. They are not a substitute for laser safety eyewear, which should be worn at all times when lasers are in use.

This window is suitable for use in industrial, manufacturing, medical, education, and research environments. It can be custom cut, molded, and drilled to your CAD specifications for seamless integration into machine enclosures or viewing panels.

Each window is labeled with its optical density and wavelength protection range to ensure compliance and traceability.

The 406 sheet shares the same optical density specifications as our 405 and 407 sheets. While their coloration differs, all three options provide the same OD 5+ protection for both UV and CO₂ lasers and are fully suitable for the same applications.

Optical density and wavelength selection should be verified by your Laser Safety Officer (LSO) per ANSI Z136.

LSOs (Laser Safety Officer) need to consider working environments, viewing conditions and beam delivery systems when making assessments and determining the correct laser glasses , goggles, barriers, or windows to protect against potentially hazardous laser radiation. Do not operate lasers without correct protective equipment and training. All laser safety glasses and goggles are made for indirect viewing only.

Common Laser Applications

CO2
General Region of Laser Protection

If you'd like to use your own shipping account, please provide your carrier name, account number, and shipping type (standard, overnight, etc.) in the "Order Instructions" located in the top right of the Cart page. Simply choose the least expensive shipping option at checkout, and you will be refunded for the shipping costs after your order is processed.

We ship domestically within the United States and internationally (to all countries our carriers ship to—FedEx and UPS). At checkout, you will have shipping options with UPS and FedEx.

Please note: For most international shipments, it is often faster and more cost-effective to use your shipping account due to customs.

You may return most new, unopened items sold and fulfilled by Laser Safety Industries, LLC., within 30 days of delivery. 30% restocking fee applies to all products returned in new or unopened condition. Item's must be returned within 30 business days of purchase. Customized product are subject to a 40% restocking fee if returned within 30 business days of purchase in new condition. Laser Safety Industries is not responsible returned items that are lost or stolen during shipping. Please call us directly at 1-888-392-5106 to arrange return.For items directed to our Returns Center, expect your refund within 4 weeks of giving your package to the return shipper (though in many cases you'll receive the refund sooner). This time period includes:

* 5 to 10 business days for us to receive your return from the shipper

* 3 to 5 business days for us to process your return

* The time it takes your bank to process our refund request.

We'll notify you via e-mail of your refund once we've received and processed the returned item.

Tax-exempt: If you're tax-exempt, their will be a place when you select Add to Cart to provide your tax-exempt exemption and state tax will be removed.

ANSI Z136 Compliance Considerations

Technical guidance for laser safety window selection and hazard evaluation

Class 4 Laser Safety Windows

Our Class 4 laser safety windows are designed for use in Class 4 laser controlled areas when properly selected for the laser wavelength and application. Optical density specifications are provided to support compliance with ANSI Z136 hazard evaluation requirements.

Lower Optical Density Windows

Laser Safety Industries also offers lower optical density windows for applications where a laser hazard evaluation determines that lower levels of protection are appropriate. These products are not intended as substitutes for Class 4 laser safety windows when higher optical density protection is required.

Hazard Evaluation Requirements

ANSI Z136 standards require protective windows and viewing systems to be selected as part of a documented laser hazard evaluation. Appropriate optical density requirements depend on factors such as wavelength, power, beam characteristics, viewing conditions, and intended use.

Learn About ANSI Z136.1 and EN207

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