Double-Layered Use is Recommended for Extremely Sensitive Applications
This black rubberized fabric provides an easy method for protecting light-sensitive equipment, as the rubberized coating prevents light from penetrating through the weave of the fabric. Double-layer use is recommended for extremely sensitive applications. Please note that this material is not intended for use as a laser curtain since it is not flame retardant. The fabric has also not been tested for clean room compatibility.
We can cut this material into custom lengths (in yards) that fit your application. Please contact Tech Support for a quote.
Build Light-Tight Boxes
TB4: This heavy-duty construction board, which measures 5 mm thick, consists of a dense foam core sandwiched between two plastic-coated, moisture-resistant cardboard outer layers. The material cuts easily with a utility knife for construction of light-tight boxes. We recommend using our 2" (5 cm) wide black masking tape (T137-2.0, sold below) for corners and other joints to eliminate the passage of light through those areas. Custom sizes up to 45" x 93" (114.3 cm x 236.2 cm) are available upon request; please contact Technical Support for a quote.
TB5: These 1/16" thick panels are ideal for erecting light-tight enclosures. Simply score the board with a utility knife and fold to make light-tight corners.
Does Not Shed Dust or Lint
30" x 30" x 0.012" (76.2 cm x 76.2 cm x 0.305 mm) Without Backing
Image contrast can suffer due to stray light reaching the focal plane of many applications where the light path travels through a tube or other enclosed area. Applying a flat-black paint to the inside may help, but a textured matte-black surface is a much more effective light trap.
Flocked paper is a self-adhesive material made of many fine fibers. When looked at from low angles, it absorbs virtually 100% of the light that strikes it. The fibers will not shed dust or lint, unlike some velvet and felt materials. The approximate compressed thickness of the flocked paper is 0.015" (0.381 mm) with the backing and 0.012" (0.305 mm) without the backing.
Caution: Do not cut the BFP1 black flocked paper with a laser cutting tool, as the BFP1 burns easily and may catch fire. It is suggested that you use a utility knife or other sharp edged tool to cut the BFP1.
This black foil material is mainly used to block out light. It has a matte black finish to absorb light from any ambient or conventional light source. The foil is ideal for masking light leaks and eliminating unwanted reflections. It can be molded quickly to form blackout covers, dark rooms, laser channels, or other configurations. Lightweight, yet durable, it can be quickly positioned in place with tape, staples, or adhesives.
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High-Performance Black Masking Tape
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Black Masking Tape
Thorlabs offers two types of black masking tape and an aluminum foil tape. All types of tape can be torn by hand, are easy to remove, and do not leave residue. The T137-1.0 and T137-2.0 black masking tape can be used for general applications. For applications requiring minimal ambient light transmission, a high-performance black masking tape (T743-1.0 or T743-2.0) is recommended. For total blackout requirements or high-power applications, we offer a non-reflective, flame-retardant aluminum tape (T205-1.0 or T205-2.0). This foil tape has been tested to withstand up to 10 seconds of exposure from a 20 W, Ø6 mm, 10.6 µm laser beam.
In the photographs shown above, a collimated LED (M530L2-C2) with approximately 170 mW output power was used to illustrate how the T743-2.0 allows very little light transmission as compared to the T137-2.0 black masking tape. The table below gives the measured power and percent transmittance when various wavelengths of light were incident upon each type of tape.