Product type: Convex Lens. Application: Optical, Infrared Image. Model: STF0.
Overview
Optical Precision Biconvex Spherical Lens Ar Coated 25.4mm 12.7mm 20mm 5mm: an optical lens made from K9 Quartz Bk7 Corning7980 Germanium Silicon Znse. Listed geometry: single-lens shape. Optical / electrical data: transmittance >95%. Coating: Polish+Coating; surface quality 10-5; flatness 1/20 Lambda. Listed for Optical and Infrared Image applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | K9 Quartz Bk7 Corning7980 Germanium Silicon Znse |
|---|---|
| Type | Convex Lens |
| Shape | Single-lens |
| Transmittance | >95% |
| Coating | Polish+Coating |
| Surface Quality | 10-5 |
| Flatness | 1/20 Lambda |
| Usage | Optical, Infrared Image |
| Model NO. | STF0 |
| Lenses Color | Clear |
| Tolereance | +0.00/-0.01mm |
| Certeration | <1arcmin |
| Supplier | Changchun Sunday Optics Co., Ltd. |
Technical data
| Structure | Bi convex lens |
|---|---|
| Material | Optical glass, UVFS,Germanium, Silicon,CaF2,MgF2,ZnSe ZnS,Sapphire |
| Diameters Available | 1mm to 600mm |
| Diameter Tolerance | +0.00/-0.01mm or customer design |
| Surface Quality | 10-5 |
| Thickness tolerance | +0/-0.01mm |
| Clear Aperture | >90% of Diameter |
| Chamfer | 0.05-0.5mmx45degree,according to customer's needs. |
| Centeration | 3 arcmin |
| Coating | Single Mag2, Multiple Layers AR Coating A:350-650nm B:650-1050nm C:1050-1585nm D: Customer Design |
What to specify when you request a quote
- Material — listed as “K9 Quartz Bk7 Corning7980 Germanium Silicon Znse”; name the glass or crystal.
- Geometry — give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “10-5”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “Polish+Coating”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Selecting Fused Silica and Quartz Glass for Precision Components. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. For an application example, read AR Coated Glass for Appliance Touch Screens: Specs and Selection. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is AR-Coated High-Transparency Optical Glass.
