Product type: Plano-Concave Lenses. Application: Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc. Model: RAY-OL029#.
Overview
Durable N-Bk7 Plano-Concave Lens for Enhanced Light Manipulation is an optical lens in Optical Glass (N-Bk7 Optical Glass or Equivalent N-Bk7 substrate). Listed geometry: single-lens shape. Optical / electrical data: transmittance Central 90% of Diameter. Coating: Ar.14, Ar.16, Ar.18, Ar.33 Coated; surface quality 40-20 Scratch-Dig or Custom Manufacturing; flatness Lambda/4 or Custom Manufacturing. Typical applications: Lighting, Medical, Optical, Photography and Laser. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Optical Glass |
|---|---|
| Substrate | N-Bk7 Optical Glass or Equivalent N-Bk7 |
| Type | Plano-Concave Lenses |
| Shape | Single-lens |
| Transmittance | Central 90% of Diameter |
| Coating | Ar.14, Ar.16, Ar.18, Ar.33 Coated |
| Surface Quality | 40-20 Scratch-Dig or Custom Manufacturing |
| Usage | Lighting, Medical, Optical, Photography, Laser, Astronomy, Imaging, Detection, etc |
| Model NO. | RAY-OL029# |
| Lenses Color | Clear |
| Surface Flatness | Lambda/4 or Custom Manufacturing |
| Effective Focal Length(Efl) | From -25mm to -200mm |
| Centration | Less Than 3 Arc Min |
| Products Name | N-BK7 Plano-Concave Lenses |
| Lens Substrates | N-BK7 |
| Optional I | N-BK7 |
| Optional II | Equivalent N-BK7 |
| Coating Code | Coating Type |
| Applying Fields I | Negative lens |
| Applying Fields II | Other |
| Main Characters | 1).High performance 40-20 scratch-dig N-BK7 substrates |
| Main Optical Tech Specification | Tech Data |
| Popular Physical Size Specification | Size |
| Main Cooperation Materials Manufacturers | CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC |
| Supplier | Shanghai Rui Tai Photoelectric Technology Co., Ltd. |
Technical data
| Optional I: | N-BK7from CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETC |
|---|---|
| Optional II: | Equivalent N-BK7Made in China, C-laser own brands |
| Coating Code: | Coating Type | Wavelength Range |
| AR.14 | Visible Multilayer | 430-700 nm |
| AR.16 | NIR Multilayer | 650-1000 nm |
| AR.18 | IR Multilayer | 1000-1550 nm |
| AR.33 | Laser Line V-Coat Multilayer | 1064 nm |
| – | Uncoated | – |
| Applying Fields I: | Negative lensImaging lensBeam expander lensBeam collimating lensDivergent collimated beamCollimating divergent beam |
|---|---|
| Applying Fields II: | Other |
| ***** |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “From -25mm to -200mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “40-20 Scratch-Dig or Custom Manufacturing”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “Less Than 3 Arc Min”; state centration and edge chamfer.
- Coating — listed as “Ar.14, Ar.16, Ar.18, Ar.33 Coated”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see AR-Coated Glass Materials for High-Transmission Optical Parts. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. 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 AR-Coated High-Transparency Optical Glass.
