Product type: Optical Glass Lens. Application: Lighting, Medical, Optical, Photography. Model: kgo107.
Overview
Bk7 Convex Concave Optical Glass Lens: an optical lens made from Fused Silica,Bk7,B270. Optical / electrical data: transmittance >95%. Coating: Polishing, Coating; surface quality 60/40; temperature 1200 Degree. Typical applications: Chemical, Glass and Optical. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Fused Silica,Bk7,B270 |
|---|---|
| Type | Optical Glass Lens |
| Transmittance | >95% |
| Coating | Polishing, Coating |
| Surface Quality | 60/40 |
| Application | Chemical, Glass, Optical |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | kgo107 |
| Lenses Color | Clear |
| Operating Temperature | 1200 Degree |
| Lens Type | Convex Lens, Concave Lens, Plano-Convex, Plano-Con |
| Supplier | Nanyang Kylin Special Glass Co., Ltd. |
Technical data
| Material | K9,fused silica ,etc. |
|---|---|
| Focal length | ±2% |
| Dimension tolerance | +0/-0.1mm |
| Center thickness | ±0.1mm |
| Centration | 3' |
| Fringes | 1-5 |
| Irregularity of fringes | 0.2-0.5 |
| Surface quality | 60/40 |
| Coating | AR coating |
| Clear aperture | 90% |
What to specify when you request a quote
- Material — listed as “Fused Silica,Bk7,B270”; name the glass or crystal.
- Geometry — give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “60/40”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “Polishing, Coating”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica Wafer Production: A Step-by-Step Manufacturing Guide. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read Fused Silica Glass Wafers for Precision Appliance Electronics. 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).
