ARC

Special Properties

• Low surface reflection
• High transmission in the visible wavelength area
• Suppresses double reflection, ghost images and phantom light- or doubled laser beams
• Refractive index of the coating is matched to
  air-glass transition
• Broadband-multi-layer thin-film coating design
• Small light absorption
• High abrasion resistance and adhesive strength

Typical Applications

• Anti-reflection-coating for optics
• Sensor windows
• Laser windows
• Coating for optical measuring devices
• Automotive cockpit windows
• Windows used for camera housings
• Robotics applications
• Reflex free sight glasses
• AR-coating for lenses and lens assemblies

Request for Quotation

Also available in 48 h Express-Service

Our ARC anti-reflection coatings are used whenever reflections from glass surfaces must be eliminated. The coatings offer a high optical light transmission and a very good anti-reflection effect in the visible wavelength range. This is achieved by the use of an optical multiple-layer coating adapting the refractive index of the glass substrate to the refractive index of the air. The result is that only a very small part of the incident light is reflected. While an uncoated glass surface shows a reflection of about 8,5% in the visible wavelength spectrum, our anti-reflection coating can reduce these reflections in parts of this spectral light range to less than 0,2% per glass surface. Compared to a conventional single-layer anti-reflection coating with approximately 1-2% of light still reflected this is a noticeable improvement that can be seen with the naked eye. Unwanted secondary reflections which overlay transmitted images and make them appear blurred are effectively suppressed by our ARC anti-reflective coatings. In transmission this preserves a sharper and brighter image with significantly better contrast and higher optical image quality.

The double side coated ARC materials and the single side coated ARC–1S anti-reflection coatings are applied to selected float glass substrates with high grade surface quality. For our ARC-B material we use BOROFLOAT® substrates. The refractive index of the respective multiple-layer anti-reflection coating is matched to the respective glass-air transition. Both ARC coating series are always available from stock as we produce them regularly. However, we do not restrict ourselves to the coatings and materials described above but can also apply anti reflective coatings to other types of glass and optics by adapting the refractive index accordingly. A coating of glass lenses and other optics also are possible on a batch basis. Customized coating layer adaptation for other operating wavelength ranges or a different refractive index are available on request.

 

How do I get an offer? Are there fixed sizes?

We are not limited to a few standard dimensions, as our company specialises in the rapid production and delivery of optics with individual dimensions. We manufacture and deliver custom sized optics as fast as usually fixed dimensions can be delivered. To make an enquiry for one of our existing ARC anti-reflective coatings on glass with individual dimensions please use the following button:

 

Request for Quotation

 

Specifications

Reflection curve of the ARC multi-layer coating compared to an uncoated glass surface in the visible wavelength area.

 

Substrate Material

• ARC and ARC-1S coatings: Selected float glass
• ARC-B coating: BOROFLOAT® borosilicate glass
• Other glass substrate materials or custom coatings for
  lenses per request

Coating Construction

• ARC and ARC-B coatings:
  Double side index-matched multi-layer coating
• ARC-1S coating:
  Single side index-matched multi-layer coating
• The refractive index of the coatings can be matched to any other suitable glass

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

Flatness

• Depending on substrate and thickness used
• Other on request

Surface Quality

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

Standard Thickness

(click on a desired thickness to open a quote request form)

• ARC : 1,10 mm / 2,00 mm / 3,00 mm
• ARC-1S : 2,00 mm
• ARC-B : 1,10 mm / 2,00 mm / 3,30 mm
• Other thicknesses possible per inquiry

Other Specifications

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

In case you want to get a batch of optical lenses anti-reflection coated please let us know the exact specifications of the lenses you are supplying. It is important to specify the refraction index of the lens material as well as the exact dimensions and focal length of the optical lenses. The lenses to be coated must not already have a coating layer. Please specify the maximum allowed amount of light that still might be reflected (residual reflection), the relevant wavelength area, and the light source used.

 

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