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Rectangular Windows
Introduction:
CASTECH offers windows either in multitudious substrates (Optical glass, Fused Silica, CaF2, BaF2, Ge, Si, ZnSe) or coated parts with multiple anti-reflection coating options covering wavelength range of Ultraviolet (UV), visible, or Infrared (IR). Millions of stock and custom precision windows are manufactured by different processing methods such as double-sided polishing, conventional polishing and ion beam figure(IBF) to guaranty high surface figure, low scatter, and high laser damage threshold to satisfy even the most demanding requirements.
Features:
- Material from DUV to FIR
- Custom dimensions and shapes
- Clear aperture: Central 85% of diameter
- Flatness: λ/10@632.8nm ( λ/40 by IBF)
- Standard and custom AR coating options available
- High laser damage threshold
Specifications：
| Material | BK7 or UV fused silica |
| Diameter Tolerance | +0/-0.15mm |
| Thickness Tolerance | ±0.25mm |
| Clear Aperture | ＞Central 85% of diameter |
| Parallelism | ＜5″ |
| Surface Quality | 20/10 |
| Transmitted Wavefront |
λ/10 @632.8nm |
| Chamfers |
12.7 & 25.4mm:0.25-0.75mm face width x 45°±15° 50.8mm:0.38-1.14 mm face width x 45°±15° |
• Most sizes λ /20 transmitted wavefront, 10-5 surface quality are available；
• All kinds of coatings are available；
• Custom designs for other sizes and coatings are also available upon request.
Order Information：
Square Windows：
Products
-
Rectangular Windows
- CASTECH offers windows in substrates made from multitude of Optical glass, Fused Silica, Calcium Fluoride(CaF2), Barium Fluoride(BaF2), Germanium (Ge), Silicon (Si) and Zinc Selenide (ZnSe), etc.
-
Introduction:
CASTECH offers windows either in multitudious substrates (Optical glass, Fused Silica, CaF2, BaF2, Ge, Si, ZnSe) or coated parts with multiple anti-reflection coating options covering wavelength range of Ultraviolet (UV), visible, or Infrared (IR). Millions of stock and custom precision windows are manufactured by different processing methods such as double-sided polishing, conventional polishing and ion beam figure(IBF) to guaranty high surface figure, low scatter, and high laser damage threshold to satisfy even the most demanding requirements.
Features:
- Material from DUV to FIR
- Custom dimensions and shapes
- Clear aperture: Central 85% of diameter
- Flatness: λ/10@632.8nm ( λ/40 by IBF)
- Standard and custom AR coating options available
- High laser damage threshold
Specifications：
| Material | BK7 or UV fused silica |
| Diameter Tolerance | +0/-0.15mm |
| Thickness Tolerance | ±0.25mm |
| Clear Aperture | ＞Central 85% of diameter |
| Parallelism | ＜5″ |
| Surface Quality | 20/10 |
| Transmitted Wavefront |
λ/10 @632.8nm |
| Chamfers |
12.7 & 25.4mm:0.25-0.75mm face width x 45°±15° 50.8mm:0.38-1.14 mm face width x 45°±15° |
• Most sizes λ /20 transmitted wavefront, 10-5 surface quality are available；
• All kinds of coatings are available；
• Custom designs for other sizes and coatings are also available upon request.
Order Information：
Square Windows：
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