NIR-absorbing material for stray light control – LiDAR, machine vision and sensor development
Black to the eye is not black to the sensor. Most black materials look dark in visible light but reflect significantly more strongly in the near-infrared – exactly the range where LiDAR, Time-of-Flight cameras, driver monitoring and machine vision operate. The human eye does not see the difference. Your measurement data does.
Musou Black IR Flock Sheet was developed for this problem: an electrostatically flocked rayon material whose carbon-containing fibre structure keeps total reflectance at 0.5 % or less from the visible to the near-infrared range (AOI 8°).
Technical specifications
- Total reflectance ≤ 0.5 % from visible to near-infrared, AOI 8° – absorption ≥ 99.5 % across the range
- Material: rayon base fabric with electrostatically flocked rayon pile, carbon-containing fibres
- Thickness: 0.9 mm ± 0.2 mm
- Sizes: A4 sheet or roll 950 mm wide, 0.5–20 m
- Mounting: available with adhesive backing or without glue
- Processing: can be cut, hung or sewn into curtain form
- Certifications: RoHS and REACH
Applications
LiDAR development and sensor calibration
LiDAR systems operate in the near-infrared and are sensitive to internal reflections, stray light and back reflections from the test environment. IR Flock Sheet can be used in test setups, prototype housings, optical tunnels and calibration environments – more reproducible measurement conditions mean development data you can actually compare.
Driver and occupant monitoring (DMS / OMS)
Driver monitoring uses NIR illumination to track the face, gaze and head position under changing lighting. Reflective surfaces in the test setup distort results or generate false signals. A low-reflectance background makes test conditions for NIR cameras and in-cabin sensing controllable.
Time-of-Flight and 3D cameras
ToF cameras measure differences in light travel time and are sensitive to multiple reflections. Masking non-relevant surfaces with IR Flock Sheet reduces error sources in depth measurement – useful when developing 3D cameras, robotics and gesture recognition.
Machine vision and automated optical inspection (AOI)
In machine vision systems, reflections and stray light degrade detection performance, especially when the camera or illumination works across the visible and near-infrared spectrum. As a background, shield or internal lining in an inspection station, the material improves contrast and stabilises imaging conditions.
NIR darkrooms, test chambers and NIR photography
Large-area lining, curtains and backgrounds for reproducible NIR test environments. The material is flexible and can be sewn into curtain form, so it also suits temporary setups.
Honest limitations – read this before ordering
We would rather not sell this into the wrong application. Two limitations worth knowing up front:
- Fibre shedding. The flocking process can generate fine fibre dust. The manufacturer advises caution where cleanliness is the highest priority or where the material goes inside precision equipment. For those cases a fibre-free alternative is often better – tell us your application and we will point you to the right material rather than sell you this one.
- No space qualification. No outgassing certification (such as ASTM E595) is stated for this material, so it should not be assumed flight-qualified for space applications.
Which material for which need
| Need | Material | Why |
|---|---|---|
| Near-infrared, LiDAR, sensor development | IR Flock Sheet | The only one holding reflectance ≤ 0.5 % into the NIR range |
| Visible light, cost-effective over large areas | VL Flock Sheet | Under 0.5 % reflectance in visible light, tolerates contact |
| Maximum blackness in visible light | KIWAMI | 99.905 % absorption – but not recommended for IR use |
| Public spaces, fire inspection | Fabric FR | Fire-resistant version for theatres and events |
| Rigid object or shaped surface | Musou Black paint | Applied directly to the part, including 3D shapes |
Start with a sample
We always recommend an A4 sample before a large order: measure the material with your own sensor at your own wavelength before committing to metres. Tell us the application and wavelength range and we will send the sample and a quote together.
Order an A4 sample or request a project quote →
Include in your message: application, wavelength range, size or number of metres needed, adhesive or no glue, and your timeline. With that we can quote in a single round.
For business customers
Dekoja.net (Noin Company Oy) is a Finnish importer and reseller. We serve companies, research institutes and universities with quotes and invoicing, and we ship across the EU.
Tel. +358 50 544 2104 · info@dekoja.net · Full Musou Black range
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We use Paytrail, which is a safe payment method for you. Paytrail Oyj has a payment institution license granted by the Financial Supervisory Authority. The service is maintained by Paytrail Oyj (VAT FI21228397), and it is part of the Nets family.
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Mobile payment methods Pivo, MobilePay and Siirto are services that work in the application, with which you can pay for online purchases as a bank transfer from your account or as a card payment from your card by accepting the payment in the respective application.
Pivo also accepts Siirto payments, which means that the payment can be accepted in any application that supports Siirto. Apple Pay is a service that works on an Apple device, which allows you to pay for purchases with a payment card connected to the device.
- Pivot
- Terms of use are available on Pivo's website.
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MobilePay terms and conditions
Move
Conditions applicable to transfer payments:
OP's general euro payment terms (.pdf)
Terms of use of the transfer service at Nordea (.pdf)
Apple Pay
Terms of use are available on Apple's website.
Apple Pay terms of use
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We offer invoice and installment payment services to our customers through Paytrail.
You can pay for your order with OP Invoice , and through us you will also receive Walley invoicing, which for the time being only offers an invoice and partial payment option in our store for business customers. With OP Invoice, you get up to 45 days of interest-free payment time, or you can pay your invoice in installments and in smaller and more instalments. Please familiarize yourself with the credit terms and price list carefully before ordering.
Please read the specific terms and conditions specific to the financing company, which you will see when you accept the payment. When you accept the payment, you also accept the finance company's terms and conditions.
About us and contact information
We are a Finnish company founded and run by us, built around service-led e-commerce. In the store we sell products from our own warehouse and also broker products from other operators in the industry. We import most of our products ourselves and sell abroad as well.
We are also a service provider and keep adding different types of services to our range. If you wish, many of our products can be supplied with your own logo, image or text (for example product embroidery, printing or laser engraving). Products can be designed for use as corporate gifts, business gifts or promotional items for events. Read more on our partner You Name It's website. We also work with several Finnish manufacturers, such as AamuFlow, which produces lovely clothing and employs many small Finnish entrepreneurs.
We also sell products and services to businesses at wholesale prices. Request a quote or ask for more information. Our business range includes many products you cannot yet find in the store – get in touch and we will go through your needs. For companies we also offer invoicing options alongside the normal online payment methods. You are of course welcome to offer us your own services or products as well.
We are interested in new products, distribution agreements and cooperation – so suppliers, manufacturers, sellers and other networkers: leave your contact details and we will be in touch. You can always call us directly too.
We are also very interested in feedback about how we work: giving feedback is welcome and helps us develop.
Noin Company Oy
info@dekoja.net
+358 50 544 2104
VAT number FI31294283
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Noin Company Oy
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Delivery, exchange and return conditions
Noin Company Oy (VAT FI31294283) sells products to individuals and companies of legal age in Finland and the EU region. The consumer sales prices of the products include value added tax. Business sales prices are indicated with VAT 0%. We reserve the right to change prices and delivery costs.
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You can see the delivery costs of your order after choosing the payment and delivery method. We deliver orders as registered (e.g. postal packages) or unregistered delivery, of which registered shipments can be tracked with a shipment ID.
Our most common delivery times to Finland are 1-3 days, and 1-7 days to other European countries, depending on the product, order and delivery method. Regarding our products in stock, we will collect and pack your order without delay, but depending on the driver of your shipment, delivery times may be longer for some of the products in our selection. So please be patient, we always try to deliver your order as quickly as possible. We are not responsible for delays caused by force majeure or indirect harm caused by delays. Deviating delivery times will be notified separately if necessary.
According to the Finnish Consumer Protection Act, you have the right to exchange or return all or part of your order within 14 days of receiving the order. The right of return only applies to unused and salable products in the original packaging. If you want to return a delivered order, first contact us by email: info@dekoja.net and tell us why you want to return the product. Also include your name and contact information in the message.
Noin Company Oy
Helsinki Finland
If the product is lost or damaged during transport or otherwise does not match your order, you must report the error to the parties mentioned in the exchange and return conditions within 7 days at the latest. If the package is damaged in transit or with the broker, a complaint about the product must be made immediately to the relevant party.