Product type: Convex Lens. Application: Medical. Model: STF501.
Overview
Bk7 Axicons Lens, Angle 90 Degree Axis Lens, Conical Axicon Lens: an optical prism made from Glass. Listed geometry: drum-shaped lens shape. Optical / electrical data: bandwidth 3-50nm, transmittance >95%. Coating: HC; 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 | Convex Lens |
| Shape | Drum-shaped Lens |
| Fwhm | 3-50nm |
| Transmittance | >95% |
| Coating | HC |
| Surface Quality | 60-40 |
| Flatness | 1/4 Lambda |
| Usage | Medical |
| Model NO. | STF501 |
| Lenses Color | Clear |
| Tolerance | +/-0.05mm |
| Size Range | 0.3mm -100mm |
| Supplier | Changchun Sunday Optics Co., Ltd. |
What to specify when you request a quote
- Material — listed as “Glass”; name the glass or crystal.
- Geometry — listed as “0.3mm -100mm”; 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
How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. Before sending a drawing, check Design Guide for Holes, Slots, and Edges in Custom Glass Parts.


