Bühler Leybold Optics.
Solutions for every challenge.

As one of the world leaders in thin film technology, Bühler Leybold Optics, is developing and manufacturing vacuum deposition equipment for a broad range of applications. As part of Bühler Group, Bühler Leybold Optics is a globally active high-tech company, present in more than 40 countries with main production facilities in Alzenau (Germany), Beijng (China) and Cary (USA), and world-wide over 425 employees. Bühler Leybold Optics offers thin film vacuum deposition systems for the precision optics industry among others. A top priority of the company is innovation leadership in key areas such as sputtering, PECVD, plasma assisted evaporation, machine automation and digitalization, as well as world-class customer service.

Solutions for different applications.
Coating Equipment.

NESSY Series
Our latest-generation of magnetron-sputtering for the production of extreme ultraviolet (EUV) mirrors under ultra-high vacuum (UHV) conditions – for mass production and product development.

Astronomical mirrors of up to 4.5 m in diameter can be precisely sputtered, achieving highest reflectivity and durability values. Easy exchange of substrates.

SYRUSpro Series
The industry benchmark in production and R&D. Classical evaporation system producing excellent coatings. Also available in configurations for infrared (IR) and ultraviolet (UV) wavelength regimes.

Plasma-enhanced chemical vapor deposition (PECVD) technology for diamondlike carbon coatings. Mainly used for night vision and thermal-imaging systems.

The HELIOS series sputtering tool is a flexible platform for fast, precise and fully-automated thin-film coatings. It specializes in high-quality optical coatings for high volume production for optical filters.

Our two NEW HELIOS technologies

HELIOS 800 Gen II:
Our 200 mm tool with improved performance, incl. lower particle level

HELIOS 1200:
Our 300 mm tool for 12‘‘ substrates


Improve the quality of your product. Outstanding surface finishing and coating.


Our ion beam figuring system for the production of surfaces with an extreme high precision of a few nanometers and a lateral resolution in the submillimeter range. It is a dry error correcting and polishing process under vacuum where accelerated argon atoms ablate minuscule particles from the surface of the workpiece. Nearly all geometries and materials can be processed.


Our ion beam sputtering system for the production of highprecision optical coatings. The technology is well known for extremely low-loss optical coatings. The machine is a batch type system, optional with an automatic load lock system and equipped with an extremely powerful 3-grid RF ion beam source able to produce large substrates with corresponding quality and speed.

Bühler Alzenau GmbH – News

Bühler appoints Mark Macus as new CFO effective September 1, 2019

Andreas Herzog (61), who has held the CFO position for 17 years, will retire for age reasons effective September 1, 2019. His successor is Mark Macus, see the picture, (47), who was employed at Bühler before for five years and who currently