Fineshut SP 0.2 / 0.4

Product outline

Fineshut SP is a light-absorbing anti-reflective sheet developed by Koyo Kogyo Co., Ltd., our predecessor. It uses ultra-fine foam polyurethane sheet, which combines excellent optical properties with amazing thinness of 0.22 mm ~.

Because of its characteristics, it is mainly used as a stray light prevention component for mirror box wall surfaces of single-lens reflex camera. We ship around 10,000 square meter each year. This is equivalent to 2.4 million single-lens reflex cameras each year when converted to mirror box applications. The track record of stability and reliability can withstand mass production. It is also produced in compliance to RoHS 2.0 regulations.

Stable light absorption performance from visible light to infrared

ファインシャットSP 反射率性能グラフ

Black nylon flock, which is a common material for anti-reflection treatment, exhibits a high light absorption effect in the visible light range, but has the disadvantage of reflecting light as it approaches near the infrared range. However, Fineshut SP can provide a stable light absorption effect from visible light to infrared light.

Mechanism of light absorption (Microporous Surface)

ファインシャット表面 拡大写真

The photograph is an image of the surface of Fine Shut which is observed with an electron microscope. The surface has a microporous structure enabling light to be absorbed by entering the uneven structure. The material is polyurethane which is highly durable and easy to handle. There is neither fiber loss nor fiber falling which is a problem in flocking treatment.

Trial Production Support

ファインシャット カット部品見本

We have a laser processing machine for trial production and a single-shot punching press in our company. We support not only the supply and manufacture of base material, but we also support production of pressed components for trial production.

In addition, by sending the target parts to which you want to add the anti-reflection function, it is possible to customize a cutting design for your inquiry.

For production of large quantity, it is possible to cope with your requirements through our production network. Please feel free to contact us.

Product Specifications


 Fineshut SP 0.2 : 0.22mm±0.03

 Fineshut SP 0.4 : 0.40mm±0.03

Standard size

 Roll 500mm x 130m

 Sheet 400mm x 500mm

Download Catalogue

EN Fineshut catalog190618
EN Fineshut catalog190618.pdf
PDFファイル 971.9 KB

Purchase here

This product is available for every optical design company who is troubled with stray light removal and anti-reflection measures, and every general user who work on DIY light.  In just one click from Amazon, kindly go to Amazon sales page from the link below.

If you can consider purchasing multiple sheets for company use, we may be able to offer cheaper proposals through direct sales, so please kindly contact us.

※The above-mentioned product uses "Toyo chem DF8370B black" (thickness 0.12mm) for tape.

※The above-mentioned product uses "DIC #8616UJ-black -50N" (thickness 0.05mm) for tape. Because the tape is thin, you can reduce the gloss caused by the cut surface of the double-sided tape.