Thin film coatings picture, AR-coatings
 
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Anti-Reflection Coatings

High-quality AR-coated glasses

ARC Series

Special Properties

  • Minimal surface reflections
  • Significantly increased transmission for visible wavelengths
  • Prevents ghost images, phantom light or double laser beams
  • The refractive index is matched to the medium and substrate
  • Dielectric multi-layer coating construction
  • Low light absorption
  • High abrasion resistance
  • Excellent adhesion of the coating

Typical Applications

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

Related topics

Request for Quotation

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

Anti-reflection coatings have the task of minimizing reflections from glass surfaces. To fulfill this task and to offer excellent anti-reflection properties and high optical light transmission in the visible wavelength range, we have developed our ARC coating series. The 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 the ambient air. This way, reflections are reduced to a minimum.

The surfaces of 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 ARC coating layers can reduce these reflections in parts of this spectral range to less than 0,2% per surface. Compared to conventional single-layer anti-reflection coatings, which typically still reflect about 1-2% of the incident light from each side, this is a considerable improvement.

Also, our ARC anti-reflection coatings effectively suppress unwanted secondary reflections, which often overlay a transmitted image with a weak identical image and make it appear unsharp. By using our ARC coating, the image remains sharper, brighter, and offers significantly better contrast, so the image quality is maintained, and almost no light gets lost. When used as a window for a laser, our ARC layers suppress doubled laser beams, and the available laser power increases since almost no light is reflected and therefore available in transmission.

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

We are not limited to the anti-reflection coatings described here. 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 material. We also have the capabilities to coat optical lenses and other optics provided by the customer with our anti-reflection coatings on a per batch basis. On request, optical anti-reflection coatings for other wavelengths are also available according to customer requirements.

 

How do 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 optics as fast, as fixed-dimensions can usually ship. Often this is of great advantage because the optics perfectly fit into the application without any necessary modifications.

To request a quotation for our ARC anti-reflection coated glasses with your particular dimensions, please select a thickness from the table 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
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 antireflection coated,
substrate Selected Float glass

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

ARC-1S:
single-side antireflection coated,
substrate Selected Float glass

2,00 ±0,20
Custom thicknesses on request

ARC-B:
double-side antireflection coated,
substrate BOROFLOAT®

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

Spectral Characteristics

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

Coating Construction

  • Index-matched multi-layer antireflection coating
  • The refractive index of the coatings match to the substrate material

Flatness

  • Depending on the substrate and thickness used

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 your 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 refraction index of the lens material as well as the exact lens dimensions and focal length. The lenses to be coated must not already have a coating layer. Please let us know the maximum allowed amount of light that still might be reflected by the lens surface (residual reflection) and 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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