FIG. 03.01
Optical Windows · Type 02 / 03
Rectangular Windows
Flat, parallel-polished plates for rectangular apertures, viewports and sensor covers.
- Part
- Rectangular Window
- Family
- Optical Windows
- Fig.
- 03.02
- Coating
- In-house
- Quality
- ISO 9001
- Made in
- Roorkee
Description
A rectangular window is a flat, parallel-polished plate cut to a rectangle. It protects optics, sensors and displays behind rectangular openings while transmitting light with minimal distortion. Material, size, thickness and coating are chosen to suit the wavelength and the environment.
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
BCoatingIn-house
- ARAnti-reflection
- Al · AgMetallic mirror
- HRDielectric mirror
- Filter
- Beam-splitter
- Polarizing
CTolerance grade
| Parameter | Commercial | Precision |
|---|---|---|
| Thickness | ±0.1 mm | ±0.01 mm |
| Radius | 1% | 0.5% |
| Refractive index | 0.001 | 0.0001 |
| Abbe (V-number) | 1% | 0.1% |
| Centration | 3 arc-min | 30 arc-sec |
| Tilt / wedge | 1 arc-min | 10 arc-sec |
| Surface irregularity | 1 fringe | λ/4 (0.25 fringe) |
| Surface quality (scratch-dig) | 60-40 | 10-5 |
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
More optical windows.
FIG. 03.03
Square Windows
Quote for rectangular windows.
Tell us the size, material, coating and quantity, or send a drawing. We reply with a quote.