Product type: Thin Film Filter. Application: Medical. Model: STF90.
Overview
Optical Aluminum+Sio2 Flat or Spherical Lens Mirror is an optical lens made from Glass. Listed geometry: thickness 2mm-5mm. Optical / electrical data: bandwidth 3-50nm. Surface quality 60-40; flatness 1/4 Lambda. It is used in 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 |
| Thickness Range | 2mm-5mm |
| Model NO. | STF90 |
| Color | Blue |
| Principle | Reflection |
| Angle of incidence | 0° |
| Tolerance | +/-0.05mm |
| Supplier | Changchun Sunday Optics Co., Ltd. |
Technical data
| Diameter | 2mm to 400mm |
|---|---|
| Diameter Tol. | +/-0.1 |
| Material | Bk7 sapphire fused silica,ZnS2,CaF2,Si,Ge. |
| Surface Quality | 40-20 standard |
| Flatness | 1/4 lambda |
| Chamfer | 0.25mmx45degree |
| Coating | AR,HR,Silver,Aluminum.Golden. |
What to specify when you request a quote
- Material — listed as “Glass”; name the glass or crystal.
- Geometry — listed as “0°”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “60-40”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica Wafer Production: A Step-by-Step Manufacturing Guide. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Fused Silica Glass Wafers (2–12", JGS1/JGS2).
