Conformal anti-reflective coating of curved optical surfaces
Solutions

Homogeneous anti-reflective coating

Optics surfaces with improved properties

Reducing the reflections that occur on surfaces is a key issue in optics and, since its invention at Carl Zeiss in Jena, the anti-reflective coating of optical components has been a core element of technological development work. ZEISS is currently working on new processes that enable further improvement of anti-reflective properties (lower residual reflection, higher broadband and angular acceptance) and, at the same time, homogeneous anti-reflective coating of curved optical surfaces in various dimensions. Hybrid anti-reflective coating solutions were developed, consisting of purely classical approaches of interference coating systems and nanoporous low refractive index top layers. Thus, the best anti-reflective performance is achieved up to the edge of curved optical surfaces.

Optimization of anti-reflective properties of optical components

Homogeneous anti-reflective coating on small and large curved optical surfaces

Optimization of anti-reflective properties of optical components

We develop customized high-tech coatings, tailored to the application and the system performance to be achieved.
Some examples of this are the broadband anti-reflective coatings (BBARs), which have been realized using new processes for the fields of consumer optics, microscopy, medicine, etc.
The new hybrid coating systems from ZEISS have outstanding properties (see Figure 1), for example, by achieving a very low residual reflection of only 0.5% (average value in the complete spectral range) for the broadband spectral range [400nm-1700nm]. This value is smaller by a factor of two than the residual reflection of conventional anti-reflective coatings.

Realization examples of broadband anti-reflective coatings
Figure 1: Realization examples of broadband anti-reflective coatings (BBARs) with the new process from ZEISS OEM Solutions
Homogeneous anti-reflective coating of an aspherical lens
Figure 2: Homogeneous anti-reflective coating of an aspherical lens (lens diameter = 73mm; Ø / 2R > 0.5)

Homogeneous anti-reflective coating on small and large curved optical surfaces

We realize high-quality, homogeneous anti-reflective coatings on optical surfaces with different geometries and dimensions.
A reference is the coating of aspherical lens surfaces for the Fundus cameras in the medical field, which allows residual reflections < 1% from the lens center to the lens edge. Designed for a spectral range from 430 nm to 850 nm, stable suppression of reflections is provided at angles of incidence from 0°- 45° (see Figure 2).

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Close tolerance beam splitter

Close tolerance beam splitter
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file size: 147 kB

Filters for fluorescence microscopy

Filters for fluorescence microscopy
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file size: 143 kB

Non polarizing edge filter

Non polarizing edge filter
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file size: 152 kB

Variable Filters

Variable Filters
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file size: 627 kB

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