Product type: Optical Windows. Application: Lighting, Medical, Optical, Photography.
Overview
Cheap 30mm 40mm Si Glass Silicon Window Infrared Night Vision Lens with Ar Coating: an optical lens made from Silicon. Listed geometry: flat shape. Optical / electrical data: transmittance >95%. Coating: Silicon Windows. Listed for Lighting, Medical, Optical and Photography applications. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Silicon |
|---|---|
| Type | Optical Windows |
| Shape | Flat |
| Transmittance | >95% |
| Coating | Silicon Windows |
| Usage | Lighting, Medical, Optical, Photography |
| Lenses Color | Black |
| Supplier | Shenyang Ebetter Optics Co., Ltd. |
Technical data
| Diameter | 0.2-300mm |
|---|---|
| Thickness | 0.1-100mm |
| Dimension tolerance | +/-0.1mm or +/-0.02mm |
| Surface quality (scratch & dig) | 60/40, 40/20 or better |
| Clear aperture | >85%, >90% |
| Surface accuracy | L/10 L/2 L |
| Parallelism | +/-3' ,+/-30'' |
| Bevel | 0.1~0.3mm x 45 degree |
| Coating | AR, BBAR or Custom |
What to specify when you request a quote
- Material — listed as “Silicon”; 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 “Silicon Windows”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Infrared Window Glass: Material Options for Optical Sensors & Parts. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. For an application example, read Infrared Window Glass for Smart Home Appliance Sensors. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Infrared Windows.
