Product type: Biconvex Lens. Application: Lighting, Medical, Optical, Photography. Model: LENS-01.
Overview
70mm Biconvex Lens 40/20 N-Bk7 Optical Glass Lens for Laser Applications is an optical lens made from Bk7 / H-K9l Optical Glass. Listed geometry: diameter ±0.05mm / ±0.1mm / Customized, size Customized. Optical / electrical data: wavelength UV / Visible / Nir / Customized, transmittance 90%-95%. Coating: Nti-Reflective Coating; surface quality 60/40, 40/20, 20/10; flatness λ/4 / λ/2 / Customized. It is used in Laser Machine Vision and Optical Equipment. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Bk7 / H-K9l Optical Glass |
|---|---|
| Type | Biconvex Lens |
| Shape | Customized |
| Size | Customized |
| Transmittance | 90%-95% |
| Coating | Nti-Reflective Coating |
| Surface Quality | 60/40, 40/20, 20/10 |
| Clear Aperture | ≥80% / ≥90% |
| Application | Laser Machine Vision / Optical Equipment |
| Usage | Lighting, Medical, Optical, Photography |
| Model NO. | LENS-01 |
| Lenses Color | Clear |
| Coating Range | 400-700nm / 350-700nm / 700-1100nm / Customized |
| Diameter Tolerance | ±0.05mm / ±0.1mm / Customized |
| Surface Flatness | λ/4 / λ/2 / Customized |
| Operating Wavelength | UV / Visible / Nir / Customized |
| Production Technology | CNC Grinding & Polishing / Precision Polishing |
| Precision | High Precision Optical |
| Functions | Light convergence and divergence |
| Supplier | Suzhou Vangta Electronic Technology Co., Ltd. |
Technical data
| Origin | Jiangsu, China | Customization | OEM / ODM Available |
| Brand | Vangta | Coating | Anti-Reflective Coating |
| Model No. | LENS-01 | Surface Quality | 60/40, 40/20, 20/10 |
| Product Type | Biconvex Lens | Application | Laser Machine Vision / Optical Equipment |
| Diameter | 1–360mm / Customized | Material | BK7 / H-K9L Optical Glass |
What to specify when you request a quote
- Material — listed as “Bk7 / H-K9l Optical Glass”; name the glass or crystal.
- Geometry — listed as “Customized”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “60/40, 40/20, 20/10”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “Nti-Reflective Coating”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica and Other Glass Materials for Machined Components. How parts like this are machined and finished is covered in Optical Glass Polishing for High Clarity Surfaces. For an application example, read How to Handle and Maintain Precision Glass Components in Laser Systems. Before sending a drawing, check Fused Silica Refractive Index: Key to Optical Design Improvement. A related standard product is Laser Beam Splitter Glass Sheet.
