Nihashi Precision Film logoNIHASHIPRECISION FILM
Precision window-film coating and quality-control laboratory
About Nihashi

Making every window understand life a little better.

For over a decade we have built one belief into every micron of film: good functional materials should be nearly invisible, yet protect you at every moment.

Our Story

It began with sunlight through a west-facing window.

Years ago, our founder sat through a meeting in a west-facing office. Sunlight poured through the glass curtain wall, harsh enough to force people to look away; the air conditioning ran at full tilt yet could not hold back the heat radiating through the glass. Those by the window turned aside — shielding their eyes, and their privacy.

In that moment he realized something: glass, the most beautiful material in modern architecture, is also the most uncontrolled. It brings openness and views, but takes away temperature, privacy and a sense of security.

“What we make is not a film — it is a way for people to live more comfortably with light, with space, and with the world.”

We call this belief invisible care: anti-fog film that keeps a mirror clear, photochromic film that dims with the sun, privacy film that gives you a space of your own, projection film that turns glass into a screen, and anti-reflection film that returns a pure, unbroken view.

Modern interior with a glass partition treated with privacy film
Product Evolution

A new material lands almost every year.

  1. 2012

    Founded in Hong Kong, focused on functional window film and glass display technology.

  2. 2015

    Launched proprietary projection film technology — GlassMovie® & GiantMirror®.

  3. 2022

    Polarizing window film introduced under the Celaeno® own-brand alongside OEM supply.

  4. 2023

    Photochromic (light-adaptive) film added to the portfolio.

  5. 2024

    Architectural anti-fog, anti-UV and anti-reflection series released.

Quality Control

We obsess over the parts customers never see.

Film thickness is measured in microns, but our standards are not limited to microns. From substrate to coating uniformity to every weathering cycle, we refine the details that decide whether a good product survives the test of time.

  • Substrate Selection & Incoming Inspection
  • Coating Uniformity Control
  • Adhesion & Optical Clarity Testing
  • Accelerated Weathering (QUV) Cycles
  • Chemical & Flammability Compliance
  • Final Roll Inspection & COA
Optical quality-control laboratory measuring window film performance

Let's build the right glass solution together.

From OEM private-label runs to joint ODM development, our team scales with your project. Tell us what you're building.