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Metal High Reflective Film - China

price: 120.00 Dollar US$

High-reflection (HR) coatings work the opposite way to antireflection coatings. The general idea is usually based on the periodic layer system composed from two materials, one with a high index, such as zinc sulfide (n=2.32) or titanium dioxide (n=2.4) and low index material, such as magnesium fluoride (n=1.38) or silicon dioxide (n=1.49). This periodic system significantly enhances the reflectivity of the surface in the certain wavelength range called band-stop, whose width is determined by the ratio of the two used indices only (for quarter-wave system), while the maximum reflectivity is increasing nearly up to 100% with a number of layers in the stack. The thicknesses of the layers are generally quarter-wave (then they yield to the broadest high reflection band in compare to the non-quarter-wave systems composed from the same materials), this time designed such that reflected beams constructively interfere with one another to maximize reflection and minimize transmission. The best of these coatings built-up from deposited dielectric lossless materials on the perfect smooth surfaces can reach reflectivities greater than 99.999% (over a fairly narrow range of wavelengths). Common HR coatings can achieve 99.9% reflectivity over a broad wavelength range (tens of nanometers in the visible spectrum range).

parameter for prism:
Material:H-K9L, H-BaK7, etc;
Surface quality:40-20/20-10;
Dimensional tolerance:plus or minus 0.05mm;
Surface flatness:1/2 lambda;
Angle tolerance:plus or minus 2 arc min.


Company Contact:


  • Phone: 0086-769-86080086

  • Address: No.2 Xianglong Rd,Xincheng Dist,Shilong Town, Dongguan, Guangdong, China

  • Email: Email


Published date: August 25, 2016 -

  • Business Description: Taiyo Optics Co. Ltd. is a professional supplier of prism. It has been focusing on processing and manufacturing optical prism for more than 20 years. Taiyo has established its first factory in 1993 at China, Nanyang. The second factory in Dongguan, China was established in 2004. The products include optical prism, cylindrical lens, and other planar optical components.

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