UNIVERSAL OPTICSROORKEE · EST. 1965Request a quote

Family 22 · To drawing

Optical Coating

Thin-film coatings control how a surface reflects, transmits, absorbs and polarizes light. By setting the thickness and composition of each layer, we tune a part for the wavelengths and angles you use. All coating is done in-house.

Optics loaded in a coating fixture, showing a violet anti-reflection tint
FIG. 22Optical Coating
Fig.
22
Coating
In-house
Quality
ISO 9001
Custom
To drawing
Since
1965
Made in
Roorkee

What it does · where it’s used

  1. More transmission and less glare with AR coatings
  2. Mirrors and beam splitters with reflective coatings
  3. Pass or block chosen wavelengths with filter coatings
  4. Control polarization with polarizing coatings
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01Coating typesOptical Coating

Six coating families.

  1. 22.A

    Anti-reflection (AR)

    Reduces reflection at a surface and raises transmission, for brighter, clearer images. Used on camera lenses, filters and spectacles.

  2. 22.B

    Reflective (metallic)

    Aluminium or silver films raise a surface’s reflectivity, for mirrors and beam splitters in telescopes, laser optics and photonic devices.

  3. 22.C

    Dielectric mirror (HR)

    Stacks of dielectric layers use interference to reflect chosen wavelengths strongly and others weakly. For lasers, resonators and filters.

  4. 22.D

    Filter

    Transmit some wavelengths while blocking or attenuating others. For spectroscopy, fluorescence microscopy and colour photography.

  5. 22.E

    Beam-splitter

    Divide an incoming beam into two or more beams at a designed ratio. For interferometers and imaging systems.

  6. 22.F

    Polarizing

    Change or select the polarization state of light. For polarizing microscopes, 3D glasses and LCDs.

02Specify yoursMade to order

Specify yours.

Start from a catalogue part or from your own drawing.

AMaterial

  • Optical glass (BK7-class crown, flint)
  • Fused silica / fused quartz
  • Sapphire
  • CaF₂
  • BaF₂
  • MgF₂
  • Silicon (Si)
  • Germanium (Ge)
  • Zinc sulphide (ZnS)
  • Zinc selenide (ZnSe)
  • Nd:YAG crystal
  • Other UV and IR materials

Find a material by wavelength Capabilities

BCoatingIn-house

  • ARAnti-reflection
  • Al · AgMetallic mirror
  • HRDielectric mirror
  • Filter
  • Beam-splitter
  • Polarizing

Coating types

CMade to your drawing

Send your drawing.

A drawing or a short spec is enough. We quote to it.

  • Dimensions and tolerances
  • Material and coating
  • Surface quality
  • Quantity
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03Request a quoteRoorkee · India

Quote for optical coating.

Tell us the part, material, coating and quantity, or send a drawing. We reply with a quote.

Request a quote Call +91 98971 52595