Product type: Flat Lens. Application: Thermal Image. Model: SRT029.
Overview
CO2 USA Znse Spherical Lens Engraver Cutter PVD: an optical lens made from USA Znse. Listed geometry: window shape. Optical / electrical data: transmittance >95%. Coating: HC; surface quality 60-40; flatness 1/4 Lambda. It is used in Thermal Image. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | USA Znse |
|---|---|
| Type | Flat Lens |
| Shape | Window |
| Transmittance | >95% |
| Coating | HC |
| Surface Quality | 60-40 |
| Flatness | 1/4 Lambda |
| Usage | Thermal Image |
| Model NO. | SRT029 |
| Tolerance | +/-0.05mm |
| Supplier | Changchun Sunday Optics Co., Ltd. |
Technical data
| Diameter | 5mm to 250mm |
|---|---|
| Thickness | 0.5-40mm |
| Material | Import USA ZnSe, China ZnSe |
| Surface Quality | 40-20 standard |
| Flatness | 1/10 lambda |
| Chamfer | 0.25mmx45degree |
| Focal Length Tol. | +/-1% |
| Coating Wavelength | 8um-12um |
| Clear Aperture | >85% of diameter |
| Design Wavelength | 10.6um |
What to specify when you request a quote
- Material — listed as “USA Znse”; name the glass or crystal.
- Geometry — 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 — listed as “HC”; 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 Optical Glass Polishing for High Clarity Surfaces. For an application example, read Why Quartz Glass Components Excel in Coffee Heating Modules. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Infrared Windows.
