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Every cover has a tab that creates an extra light seal layer and helps in installing and removing in a cage system.

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C16L24 cage system covers are shown enclosing a 16 mm cage system. Each cover features tracks that allow it to snap onto the cage rods.  

Features

• 24" Long Snap-On Covers for 16 mm, 30 mm, or 60 mm Cage Systems
• Block Stray or Unwanted Light
• Keep Beam Path Clean of Dust and Other Contaminants
• Easy to Cut to Desired Length; See the Cutting Tutorial Tab
• Sold in Packs of 4

Thorlabs' Cage System Covers are designed to enclose 16 mm, 30 mm, or 60 mm cage systems. They can protect users from stray beams or wavelengths that are invisible to the naked eye, as well as prevent ambient light, dust, and other contaminants from accessing the beam path. Made from high impact polystyrene plastic, the cage covers are sold in 24" lengths, which can be easily cut to the desired length by the user; see the Cutting Tutorial tab for details.

Each cover features a tab on one side that provides an additional light seal and an area to grip during installation and removal. The covers snap onto the cage rods, as shown in the images to the right. To remove, simply pull the tab to release the cover.

Please note that these cage system covers are not light tight and should not be used in high-power applications.

To Cut the Cage System Covers: 

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Step 1: Measure the length required to cover the cage system setup.

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Step 2: Using a utility knife or saw, score the legs of the cover at the desired length.

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Step 3: Bend the cover until it snaps along the scored cuts.