250nm to 520nm Laser Shielding – 24″ x 12″


Protect your EYES!

We have contracted with a large plastic manufacturer to produce this high Optical Density Acrylic at OD 3+.


-OD3+ laser filtering from 250nm to 520nm
-23 7/8″ by 11 7/8″

1/8″ thick

SKU: Shielding_445_24 Categories: ,


Larger Laser Shielding now Available by Popular Demand!

This is the same awesome OD 3+ laser shielding we have been selling for a long time, but in bigger sheets.  It is now offered with ~ 24″ x 12″ sheets to fit with larger printers and CNC machine enclosures.

This is a must for your new laser build! Protect the area around your machine and everyone’s eyes from stray laser radiation reflections.  This material is optical grade semi-transparent acrylic material that has been tested with a spectrometer and our 405nm and 445nm lasers to show an OD of 3+.  Sheets size is  23 7/8″ x 11 7/8″ size.  Easily cut with saw or router to desired size for your machine.

Each piece comes with “Danger – Laser In Use – Never Look Directly into a Laser Beam – Laser in Use”, “OD 3+ @445nm”,  sticker for safety.

Be safe and not only wear safety goggles, but enclose your working area of your laser upgrade machine!

Tested Specifications:

Size: 23 7/8″ x 11 7/8″
Thickness: 1/8″
Weight: 1.7 lbs
Wavelength Range: 250nm to 520nm
Visible Light Transmittance:
Optical Density:
3  (OD 3+)
10-3 < N% < 10-4

(Note:  Doubling up of shielding pieces does not increase the OD value)

Shielding piece on the front of our X Carve machine

Testing Shielding with 445nm laser 800Testing setup with 445nm laser

Laser marking with 445nm laser shielding

Laser marking circuit boards with shield.  Notice the spot is very attenuated.

Laser marking without shielding

Same laser marking without shielding.  Quite a difference with laser reflection.

445 Laser Shielding Example


Laser Cut and Engrave Example

Do not operate lasers without correct protective equipment and training. Laser Safety Shielding is not intended to replace laser protective eyewear (laser glasses or laser goggles) or other laser safety products that maybe required. Contact us or your certified laser safety officer for more information.

Additional information

Weight 2.01 lbs
Dimensions 23 × 11 × .125 in


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