Model: LSA-0101.
Overview
The K9 Glass Plano-Convex Lens for Optical Instrument is supplied as an optical lens made from K9 Fine Annealing. Listed geometry: diameter ±0.0/-0.20. Coating: Mgf2 Ar Coating; surface quality IV. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | K9 Fine Annealing |
|---|---|
| Coating | Mgf2 Ar Coating |
| Surface Quality | IV |
| Clear Aperture | Over 90% |
| Model NO. | LSA-0101 |
| Model | Lsa-0101 |
| Diameter Tolerance | ±0.0/-0.20 |
| Center Thickness | ±0.1 |
| Surface Figure | 1-5 |
| Surface Irregularity | 0.2-0.5 |
| Supplier | Nanchang Leadtop Technology Co., Ltd. |
Technical data
| Model No. | Diameter (Φ, mm) | Effective Focal Length (F', mm) | Back Focal Length (fb, mm) | Center Thickness (Tc, mm) | Edge Thickness (Te, mm) | Weight (g) |
| LSA-010130 | 6.0 | 6.0 | 4.6 | 2.5 | 1.42 | 0.2 |
| LSA-010101 | 6.0 | 9.8 | 8.5 | 2.0 | 1.0 | 1 |
| LSA-010102 | 6.0 | 19.0 | 17.7 | 2.0 | 1.5 | 1 |
| LSA-010103 | 6.0 | 38.1 | 36.8 | 2.0 | 1.8 | 1 |
| LSA-010131 | 10.0 | 10.0 | 6.8 | 4.8 | 1.1 | 1 |
| LSA-010132 | 10.0 | 15.0 | 13.1 | 2.9 | 1.1 | 1 |
| LSA-010133 | 10.0 | 20.0 | 18.4 | 2.4 | 1.1 | 1 |
| LSA-010134 | 10.0 | 30.0 | 28.8 | 1.9 | 1.1 | 1 |
| LSA-010168 | 10.0 | 40.0 | 38.02 | 3.0 | 2.39 | 0.5 |
| LSA-010169 | 10.0 | 75 | 73.02 | 3.0 | 2.68 | 0.6 |
| LSA-010170 | 10.0 | 100 | 98.02 | 3.0 | 2.76 | 0.6 |
| LSA-010104 | 12.7 | 12.7 | 8.7 | 6.0 | 1.1 | 2 |
| LSA-010105 | 12.7 | 25.4 | 22.8 | 4.0 | 2.4 | 2 |
| LSA-010106 | 12.7 | 38.1 | 36.1 | 3.0 | 2.0 | 2 |
| LSA-010107 | 12.7 | 50.8 | 48.8 | 3.0 | 2.2 | 2 |
| LSA-010171 | 20 | 25 | 21.04 | 6.0 | 1.26 | 3 |
What to specify when you request a quote
- Material — listed as “K9 Fine Annealing”; name the glass or crystal.
- Geometry — listed as “±0.0/-0.20”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “IV”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — listed as “Mgf2 Ar Coating”; 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 AR Coated Glass for Appliance Touch Screens: Specs and Selection. 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.
