UNIVERSAL OPTICSROORKEE · EST. 1965Request a quote

Family 03 · 3 types

Optical Windows

Flat, parallel-polished plates that seal and protect fragile optics inside an assembly while letting light through. Available in a choice of materials and coatings, matched to your wavelength.

Two rectangular optical windows, one standing upright
FIG. 03Optical Windows
Types
3
Coating
In-house
Quality
ISO 9001
Custom
To drawing
Since
1965
Made in
Roorkee

What it does · where it’s used

  1. Protect lenses, sensors and detectors inside an assembly
  2. Seal housings without changing the beam’s direction
  3. Viewports for lasers, cameras and instruments
  4. AR coating to cut reflection losses
Request a quoteSee the 3 types
01TypesOptical Windows

Three types.

Open a type for how it works and where it is used. Each can be made in the material and coating you need.

FIG. 03.01
Two circular optical windows

Circular Windows

Round, flat and parallel: protects optics and sensors while passing light.

FIG. 03.02
Rectangular optical window on a blue background

Rectangular Windows

Flat, parallel-polished plates for rectangular apertures, viewports and sensor covers.

FIG. 03.03
Two square optical windows stacked on a light background

Square Windows

Flat, parallel-polished square plates with high transmission and low distortion.

02Specify yoursMade to order

Specify yours.

Start from a catalogue part or from your own drawing, in the material, coating and tolerance grade you need.

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

CTolerance grade

Manufacturing tolerances, commercial and precision grade
ParameterCommercialPrecision
Thickness±0.1 mm±0.01 mm
Radius1%0.5%
Refractive index0.0010.0001
Abbe (V-number)1%0.1%
Centration3 arc-min30 arc-sec
Tilt / wedge1 arc-min10 arc-sec
Surface irregularity1 fringeλ/4 (0.25 fringe)
Surface quality (scratch-dig)60-4010-5

DMade 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
Request a quote
03Request a quoteRoorkee · India

Quote for optical windows.

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

Request a quote Call +91 98971 52595