beamsplitter and filter coatings

AccuCoat provides our customers with a wide range of standard and custom beam splitter and filter coating options applied to glass, crystal or plastic substrates. Our thin film coating design software programs allow us to create the best coating solution for your needs, and you can always work directly with our in-house coating engineer.

Take advantage of our small run prototyping services to be certain that our coatings will be the ideal option for your high volume requirements.


  • long-pass & short-pass edge filters
  • immersed and non-immersed design dichroic beam splitters
  • attenuation filters
  • hot mirrors, cold mirrors
  • beam combiners
  • neutral density filters



Read our Technical Note on Beamsplitters: Divide, combine & conquer.

New to Coatings? Before you send that RFQ, download our tips - Top Specs for Coatings on Glass.

Need help with plastic coatings? Download our handy and shareable Top Specs on Coatings on Plastic 


beamsplitters & filter coatings

Large Materials

Have Large Materials that need coating? We can deliver custom coatings on glass, metal and plastic materials - up to 350 mm

Talk with Alan to learn how you can take advantage.


AccuCoat Filter Substrate Materials -
See complete list for details

  • Glass
  • Crystal
  • Plastic

Size Range:

3 mm - 350 mm diameter

AOI Range:

0 - 60 degrees


Utilizing our in-house measurement equipment capabilities, we are ready to meet your specific requirements.
Our coatings have been tested to meet Military Specifications, ISO Standards, and High Laser Damage Threshold tests (LDT).

Typical Applications:

  • Bar-Code Scanners
  • Heads-Up Display
  • Advanced driver-assistance systems (ADAS)
  • Cameras
  • Fiber Optics
  • Lasers used to steer or direct beam, beam splitter with AR Coatings or fold mirrors
  • Illumination Systems  - Xenon lamps for semiconductor, UV light sources - Medical uses and LED
  • Range Finders
  • Instrumentation
  • Microscopes
  • Virtual Reality (VR)
  • Augmented Reality (AR)
  • Vision assistance eReaders


Plate Beamsplitter - AC300
SHOWN 50/50 @ 45°
Other R/T ratios available (70T/30R, 60R/40T)

Plate beamsplitter AC300 curve

Hot Mirror Coating - AC340
Transmits the visible region and reflects the near infrared region.


ITO Transparent Conductive Coating - AC350
Variety of designs available including index matching and AR. T>85% in the visible