Product type: Windows. Application: Lighting, Medical, Optical, Photography, Astronomy.
Overview
Dia2-150mm Coated Optical Silicon Window (Optical Si Window) IR material Laser Window is a sapphire / infrared window made from Silicon. Listed geometry: diameter 2-150+/-0.1mm, thickness 1-30+/-0.1mm, round shape. Optical / electrical data: transmittance 90%-95%. Coating: Anti-Reflection; surface quality 60-40. Listed for Lighting, Medical, Optical, Photography and Astronomy applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Silicon |
|---|---|
| Type | Windows |
| Shape | Round |
| Diameter | 2-150+/-0.1mm |
| Thickness | 1-30+/-0.1mm |
| Transmittance | 90%-95% |
| Coating | Anti-Reflection |
| Surface quality | 60-40 |
| Parallelism | <3arcmin |
| Clear aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Lenses Color | Clear |
| Specifications | Items |
| ROC1 | infinity |
| ROC2 | infinity |
| Chamfer | protected |
| AR coating,Ravg<3%@3-5μm,AOI | 0deg |
| Standard | MIL-PRF-13830B |
| Inspection | Packaging& Shipping |
| Package detail | Optics are packed with Capacitor paper, white paper, custom-made plastic containers etc |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Silicon Window | Material: | Silicon Mono type N 20-50 .cm |
| Diameter: | 2-150+/-0.1mm | |
| Thickness: | 1-30+/-0.1mm | |
| ROC1: | infinity | |
| ROC2: | infinity | |
| Surface quality: | 60-40 | |
| Parallelism: | <3arcmin | |
| Clear aperture: | >90% | |
| Chamfer: | protected | |
| Standard: | MIL-PRF-13830B |
What to specify when you request a quote
- Material and grade — listed as “Silicon”; name the glass or crystal grade (for example JGS1, N-BK7, Borofloat 33, sapphire) because it fixes the transmission band and thermal limits.
- Diameter or outline — listed as “2-150+/-0.1mm”; give the nominal size and the tolerance you can accept.
- Thickness — listed as “1-30+/-0.1mm”; state nominal thickness and tolerance; thinner windows need tighter flatness control.
- Surface quality and flatness — listed as “60-40”; quote scratch-dig and flatness over the clear aperture, not the whole part.
- Coating — listed as “Anti-Reflection”; list the wavelength band and the maximum reflectance per surface for any AR coating.
- Clear aperture and edges — listed as “>90%”; define the usable aperture and the edge chamfer.
Engineering guides for this part
For material grades and coating options, see Infrared Window Glass: Material Options for Optical Sensors & Parts. How parts like this are machined and finished is covered in AR Coating Process for Optical Glass Windows – Complete Manufacturing Overview. For an application example, read Infrared Window Glass for Smart Home Appliance Sensors. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is Infrared Windows.
