Technology

eLstar’s ELM (Electrophetic Light Modulator)

Powered glass dynamically adapts to manage light and heat, reducing energy consumption and enhancing comfort. More efficiency, less environmental impact.

Neutral tint

Clear to dark in < 30 sec

Widest tint range

0.2% Dark – 70% Clear

Largest sizes

2.9 m X 3.3 m

Shapes enabled

Trapezoids and circles

Attractive color

Neutral grey & 98 CRI

Low power

1W / m2

F.A.Q.

Most traditional smart glass relies on chemical ion exchange that is often slow and results in a permanent blue or yellow tint. eLstar’s Electrophoretic Light Modulator (ELM) technology uses a pigment-based system which can achieve a perfectly neutral clear state and significantly faster switching speeds, providing a more aesthetic and responsive solution for modern facades.

Speed and uniformity are critical for user comfort. Eclipse™ dynamic glass switches states in seconds. This transition speed is independent of the panel size, ensuring that large-scale architectural windows and automotive sunroofs change uniformly without a "curtain effect."

Yes. Energy efficiency is a primary driver of our technology. By blocking up to 85% of solar heat gain, our glass reduces the energy required for HVAC cooling by up to 30%. This direct reduction in operational carbon helps projects earn significant points toward LEED, BREEAM, and WELL certifications, supporting the global shift toward net-zero building standards.

We designed our technology with glass processors in mind. The eclipse™ light modulator is a thin insert that integrates seamlessly into standard lamination lines using PVB or EVA interlayers. This allows fabricators to produce high-performance smart glass using their existing cleanrooms and autoclaves, removing the need for expensive new manufacturing infrastructure.

Durability is essential for both architectural and automotive applications. Our pigment-based ELM is inherently robust and lightfast, meaning it does not degrade under intense UV exposure. The technology is engineered to operate reliably in a wide temperature range, ensuring consistent performance in the most demanding climates and environments.

Let’s connect

Contact us to explore how our dynamic glass can be integrated into your products.

Achtseweg Zuid 153V
5651 GW Eindhoven,
The Netherlands