Product type: Convex Lens. Application: Lighting, Optical. Model: FW-BK7.
Overview
The Optical Square Rod Lens 1mmx1mm Fused Silica Bk7 is supplied as an optical lens made from Optical Glass. Listed geometry: size 1mmx1mm, cylindrical shaped lens shape. Optical / electrical data: transmittance >95%. Coating: UV; surface quality 80-50,60-40,40-20,20-10,10-5. It is used in Lighting and 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 | Convex Lens |
| Shape | Cylindrical Shaped Lens |
| Size | 1mmx1mm |
| Transmittance | >95% |
| Coating | UV |
| Surface Quality | 80-50,60-40,40-20,20-10,10-5 |
| Clear Aperture | >90% |
| Usage | Lighting, Optical |
| Model NO. | FW-BK7 |
| Lenses Color | Clear |
| Polish | Customized |
| Coat | Customized |
| Materials | Bk7 |
| Focal Length | 2mm-10000mm+/-0.3% |
| Length | 1mm to 300mm |
| Centration | 30'' |
| Irregularity | lambda/4 |
| Supplier | Jiaozuo Commercial Finewin Co., Ltd. |
Technical data
| Material: | JGS1 glass |
|---|---|
| Clear Aperture: | >90% |
| Focal Length: | 2mm-10000mm+/-0.3% |
| Size: | 0.5-600mm+/-0.02mm |
| Length: | 1mm to 300mm |
| Centration: | 30'' |
| Irregularity | :lambda/4 |
| Surface Quality: | 80-50,60-40,40-20,20-10,10-5 |
| Radius tolerance | +/-0.3% |
|---|
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “1mmx1mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “80-50,60-40,40-20,20-10,10-5”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “30''”; 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 Flat Glass Polishing Process for Precision Substrates. For an application example, read Boost Yield with Fused Silica Viewports for Vacuum and Optical Systems. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Fused Silica Glass Wafers (2–12", JGS1/JGS2).
