Product type: Flat Lens. Application: Optical. Model: FW-Glass.
Overview
Optical Window, Sapphire Lens for Camera Protection Cover: a display / touchscreen cover glass made from Optical Glass. Listed geometry: size Customized, thickness Customized, single-lens shape. Optical / electrical data: transmittance >95%. Coating: UV. Listed for Optical applications. 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 |
| Size | Customized |
| Thickness | Customized |
| 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
- Glass type and thickness — listed as “Optical Glass”; name the glass (soda-lime, aluminosilicate, borosilicate) and thickness.
- Strengthening — state thermal tempering or chemical strengthening and the required surface compression or impact rating.
- Printing and coatings — listed as “UV”; list silk-screen colours, windows, and any AR / AG / AF coating.
- Outline and edges — listed as “Single-lens”; send a drawing with cut-outs, holes and edge finish.
- Optical requirements — listed as “>95%”; give transmission, haze or gloss targets for the viewing area.
Engineering guides for this part
For material grades and coating options, see AR-Coated Glass Materials for High-Transmission Optical Parts. How parts like this are machined and finished is covered in AR Coating Process for Optical Glass Windows – Complete Manufacturing Overview. For an application example, read AR Glass for Appliance Touch Screens: Selection & Integration. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is AR Anti-Reflection Optical Window.
