Product type: Thin Film Filter. Application: Medical.
Overview
The 0.21-2mm Ar Coated Fused Silica Optical Window is supplied as an AR-coated optical window made from Glass. Listed geometry: thickness 2mm-5mm. Optical / electrical data: bandwidth 3-50nm. Surface quality 60-40; flatness 1/4 Lambda. Typical applications: Medical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Thin Film Filter |
| Shape | Customized |
| Fwhm | 3-50nm |
| Surface Quality | 60-40 |
| Flatness | 1/4 Lambda |
| Usage | Medical |
| Color | Blue |
| Angle of incidence | 0° |
| Tolerance | +/-0.05mm |
| Thickness Range | 2mm-5mm |
| Supplier | Changchun Sunday Optics Co., Ltd. |
Technical data
| Diameter | 1mm to 1000mm |
|---|---|
| Diameter Tol. | +/-0.02mm |
| Material | Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge. |
| Surface Quality | 10-5 standard |
| Flatness | 1/10 lambda |
| Parallisam | <3 seconds |
| Chamfer | 0.25mmx45degree |
| Coating | AR,HR,Silver,Aluminum.Golden. |
What to specify when you request a quote
- Material and grade — listed as “Glass”; 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 — give the nominal size and the tolerance you can accept.
- Thickness — listed as “2mm-5mm”; 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 — list the wavelength band and the maximum reflectance per surface for any AR coating.
- Clear aperture and edges — define the usable aperture and the edge chamfer.
Engineering guides for this part
For material grades and coating options, see AR-Coated Glass Materials for High-Transmission Optical 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 Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is AR Anti-Reflection Optical Window.
