Technology

Technology filtered by COATING

DEVELOPMENT HISTORY/AIM OF A REVOLUTINAORY POLARIZER

Under the comprehensive supervision of Mr. Tatsuno Kiyoshi, a groundbreaking limited edition filter was born after an 18-month development period, aiming to be unparalleled in every aspect of Polarizer in its history.

COATING

PLASMA SPUTTERING COATING

Plasma sputtering coating, a fascinating technique in materials science and engineering, involves the deposition of thin films of material onto a substrate through sputtering. This process is achieved by ejecting material from a "target" material to the "substrate" using a plasma.

COATING

NO SCRATCH AGAINST STEEL WOOL

In plasma sputtering, the kinetic energy of the particles of the coating material is higher than in conventional vacuum evaporation methods, resulting in a highly adhesive and strong film.
Moreover, since it is smooth and has extremely little resistance due to to the flattness, it is less likely to get scratched.

COATING Datasheets

WORLD TOP CLASS LOWEST REFLECTION POLARIZER

FAQ: I saw other manufacturers claim better reflectance. What's difference?
Marumi’s factory lab research demonstrates a consistent performance with an average reflectance of 0.18% across the visible spectrum (400-700nm). This isn't just a one-off peak performance but a steadfast guarantee across all wavelengths that matter.