Product type: Flat Lens. Application: Optical. Model: FW-Glass.
Overview
The Sapphire Right Angle Prism Lens, Windows is supplied as an optical prism made from Optical Glass. Listed geometry: diameter 2mm to 250mm, size Customized, thickness 0.1mm to 150mm, single-lens shape. Optical / electrical data: transmittance >95%. Coating: UV. It is used in Optical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical Glass |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Diameter | 2mm to 250mm |
| Size | Customized |
| Thickness | 0.1mm to 150mm |
| Transmittance | >95% |
| Coating | UV |
| Usage | Optical |
| Model NO. | FW-Glass |
| Lenses Color | Clear |
| Growth Method | Ky |
| Supplier | Jiaozuo Commercial Finewin Co., Ltd. |
Technical data
| Refractive index (nd) | 1.768 |
|---|---|
| Coefficient of dispersion (Vd) | 72.2 |
| Density (g/cm3) | 3.97 |
| TCE(μm/mºC) | 5.3 |
| Soften Temperature(ºC) | 2000 |
| Knoop hardness(kg/mm2) | 2200 |
| Diameter | 0.2-300mm +/-0.1mm or +/-0.02mm or customization |
|---|---|
| Thickness | 0.10-100mm± 0.1mm or +/-0.02mm |
| Surface quality (scratch & dig) | 60/40, 40/20 or better |
| Surface accuracy | λ/10, λ/2, λ |
| Clear Aperture | >85%, >90% |
| Parallelism | +/-3' ,+/-30'' |
| Bevel | 0.1~0.3mm×45 degree |
| coating | AR, BBAR or upon customer request( UV, VIS, IR) |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “2mm to 250mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “UV”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica Windows for UV and Laser Optical Systems. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Bulk Ordering Glass Windows for Robotic Vacuum Optical Sensors. Before sending a drawing, check Design Guide for Holes, Slots, and Edges in Custom Glass Parts. A related standard product is Infrared Windows.
