Windows are used to isolate different physical environments while allowing light to pass. A window is usually parallel and is likely to be anti-reflective coated. UPT offers all kinds of custom-made windows according to customers’ requirement:
Material:
| BK7 Grade A Optical Glass
|
Typical Diameter (Φmm)
| 8.0, 10.0, 12.7, 15.0, 20.0, 25.4, 30.0, 50.8
|
Typical Thickness (mm)
| 0.5, 1.0, 2.0, 3.0, 5.0, 6.0
|
Diameter Tolerance (mm)
| +/-0.2 (General), +0.0/-0.02 (High Precision)
|
Thickness Tolerance (mm)
| ±0.2 (General), ±0.05 (High Precision)
|
Clear Aperture
| >80% (Small Size), >95% (Large Size)
|
Parallelism
| 3 min. (General), 3 sec. (High Precision)
|
Surface Quality
| 80/50 (General), 10/5 (High Precision)
|
Flatness (per 25mm@633nm)
| λ(General), λ/10 (High Precision)
|
Bevel (face width x 450)
| <0.25mm
|
Coating
| Uncoated, AR, HR, PR, Coating, etc.
|
(1). Windows made from materials such as N-BK7, Fused Silica, Sapphire, CaF2, Silicon, Borofloat, or other optical glass supplied by Schott and Chinese CDGM are available upon request.
(2). Custom-made windows at any size from Φ2.0mm to Φ350mm clear aperture are available.Besides round, windows at shape of square, triangular, or other shapes are also available.
(3). Thickness from 1.0mm to 50.0 mm is available upon request.
(4). 95% clear aperture is available upon request.
(5). Better bevel is available upon request.
(6). Windows with Anti-Reflective (AR), High-Reflective (HR), Partial-Reflective (PR) coating are available.
