Product type: Optical Windows. Application: Lighting, Medical, Optical, Photography.
Overview
Custom Made Sapphire Glass Window Lens Sapphire Crystal Watch Glass Replacement: an optical lens made from Optical Glass. Listed geometry: flat shape. Optical / electrical data: transmittance >95%. Coating: Sapphire Windows. It is used in Lighting, Medical, Optical and Photography. 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 | Optical Windows |
| Shape | Flat |
| Transmittance | >95% |
| Coating | Sapphire Windows |
| Usage | Lighting, Medical, Optical, Photography |
| Lenses Color | Clear |
| Supplier | Shenyang Ebetter Optics Co., Ltd. |
Technical data
| Material | Sapphire/Optical glass |
|---|---|
| Chamfer | 0.25mm at 45 degree typical |
| Dimensiontolerance | ± 0.01mm |
| Surface quality | 10/5,20/10, 40-20,60/40,80/50 |
| Flatness | lambda/10-lambda/20 at 633nm |
| Parallelism | <1 arc second |
| Clear aperture | Central 95% |
| Edges | Ground, Maximum 0.25mm Edge Chip |
| Coating | Uncoated, AR, HR, PR coating, etc |
| Appearance | Restangular,square,circle,wedge,oval etc |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — 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 “Sapphire Windows”; 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 Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Specifying Coatings for Custom Glass Windows and Substrates. A related standard product is Infrared Windows.
