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Anti-Reflection Coatings

High-quality AR-coated glass

ARC Series

Special Properties

  • Highly efficient reduction of surface reflections
  • Broadband high transmission for visible wavelengths
  • Excellent suppression of ghost images, phantom light or double laser beams
  • Refractive index adapted to the carrier glass
  • All-dielectric metal-free multi-layer coating
  • Low light absorption
  • High abrasion resistance
  • Excellent coating adhesion

Typical Applications

  • Anti-reflection coating for optical windows, lenses, and beamsplitters
  • Non-reflective sensor cover glasses
  • Medical equipment
  • Laser windows
  • BBAR-Coating for optical measuring instruments
  • Automotive cockpits
  • Camera protection windows
  • Robotics applications
  • AR-coatings for single lenses and lens assemblies

Related topics

Request for Quotation

48h-Express Service Also available in 48 h Express-Service

We created our ARC coating series to offer excellent anti-reflection properties and high optical light transmission in the visible wavelength range with maximum availability. Our ARC-coatings are vacuum-deposited multi-layer dielectric thin-film coatings whose layers adapt the refractive index of the substrate to the refractive index of air. With the ARC coating design, we can reduce surface reflections to a minimum.

Uncoated glasses show a typical reflection of approximately 4,25% per side, so in total, they reflect about 8,5% of light in the visible wavelength spectrum. Our index-matched multi-layer ARC coating can reduce these reflections in parts of this spectral range to less than 0,2% per surface. Compared to conventional single-layer anti-reflective coatings, which typically still reflect about 1-2% of incident light per side, this is a significant improvement.

Our ARC anti-reflective BBAR-coatings effectively suppress unwanted secondary reflections, which superimpose a transmitted image with a weak identical ghost image, resulting in a blurred picture. With our ARC coating, the image remains sharp, brighter, and has much better contrast. The image quality is maintained, and almost no light gets reflected. When used as a laser window, our ARC coating suppresses double laser beams, and the available laser power increases because practically no light is reflected and, therefore, almost entirely transmitted.

The layers of our double-side ARC and single-side ARC-1S standard coatings are applied to selected high-quality iron-reduced float glasses by a vacuum deposition process. For the ARC-B series, we use premium quality BOROFLOAT® material. We adapt the refractive index of the anti-reflection coating to the respective substrate glass used. The ARC coated materials are usually always available, as we produce them regularly.

We are not limited to the anti-reflection coatings described on this website. On request, we also coat other substrate materials or finished optics, and we can adapt the refractive index of our anti-reflection coatings to the respective carrier glass material. We also have the capabilities to coat optical lenses and other optics provided by the customer with our multi-layer anti-reflection coatings on a per-batch basis. On request, optical anti-reflection coatings for a different wavelength range are also available according to customer requirements.

 

How can I get a quotation? Are there fixed standard dimensions?

You are free to specify the dimensions! Our company specializes in the rapid production and delivery of optics with individual sizes. We can quote, manufacture, and deliver custom-sized glass parts as fast, as fixed-dimensions off-the-shelf usually ship. Often this is of great advantage because the optics perfectly fit into the application without any necessary modification.

To request a quotation for our ARC anti-reflection coated materials with particular dimensions, please select a thickness from the table you find in the specifications or use the following button.

 

Request for Quotation

48h-Express Service Also available in 48 h Express-Service

 

Specifications & Properties


ARC anti-reflection coating compared
to an uncoated glass surface

Uncoated window compared to ARC anti-reflection coating over wavelength
Enlarge curve to show details


Standard thicknesses

(Please click on a glass thickness to request a quote)

Thickness (mm)

Tolerance

48h-Express Service

ARC:
double-side anti-reflection coating,
substrate Selected Float glass

1,10 ±0,10
2,00 ±0,20
3,00 ±0,20
Custom thickness on request

ARC-1S:
single-side anti-reflection coating,
substrate Selected Float glass

2,00 ±0,20
Custom thickness on request

ARC-B:
double-side anti-reflection coating,
substrate BOROFLOAT®

1,10 ±0,10 -
2,00 ±0,20 
3,30 ±0,20
Custom thickness on request
The thicknesses marked with "" are also available within 48–h Express Service.

Spectral Characteristics

  • Rabs </= 0,6% per coated surface at a wavelength range of 450-650 nm (i = 0°) for unpolarized light
  • Ravg < 0,3% per coated surface at a wavelength range
    of 430-660 nm (i = 0-15°), for unpolarized light
  • Coating for other wavelengths per inquiry
  • Characteristics for laser use per inquiry
  • Modified coating design per inquiry

Coating Construction

  • Index-matched multi-layer anti-reflection coating for the visible wavelength spectrum
  • The refractive index of the coatings matches to the substrate material

Flatness

  • Depending on the substrate glass and thickness

Surface Quality

  • better than 80-50 scratch & dig (MIL-0-13830A)
    (typically better than 60-40)
  • Higher surface quality on request

Other Specifications

  • Coating layer adhesion according to MIL-C-675 C
  • Abrasion resistance according to MIL-M-13508 C

 

In case you need a batch of optical lenses custom anti-reflection coated, please let us know the exact specifications of the lenses you want to supply. It is essential to specify the lens material's refraction index, the precise lens dimensions, and focal length. The lenses to be coated must not already have any coating layer. Please let us know the maximum allowed amount of light that still might be reflected by the coated lens surface (residual reflection), inform us about the relevant wavelength range, and let us know which light source you use.

 

All given details and specifications are mean reference values and are not guaranteed. Also, please consider our "Notes on specifications".

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