Product type: Convex Lens. Application: Lighting, Medical, Optical, Photography, Astronomy. Model: Achromatic lens.
Overview
The Dia95mm 450-650nm Ar Coated Optical Doublet Achromatic Lens is supplied as an optical lens made from Optical Glass. Listed geometry: diameter 36.50+0.00/-0.05mm, cemented shape. Optical / electrical data: transmittance 90%-95%. Coating: Anti-Reflection; surface quality Naked eye test& 15W LED cold light; flatness ZYGO 4"interferometer. Listed for Lighting, Medical, Optical, Photography and Astronomy applications. 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 | Cemented |
| Diameter | 36.50+0.00/-0.05mm |
| Transmittance | 90%-95% |
| Coating | Anti-Reflection |
| Surface Quality | Naked eye test& 15W LED cold light |
| Flatness | ZYGO 4"interferometer |
| Parallelism | Thickness gauge |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Model NO. | Achromatic lens |
| Lenses Color | Clear |
| Center thickness | 5.5+/-0.1mm |
| ROC1 | 104.10mm,CX |
| ROC2=ROC3 | 44.70mm,Doublet |
| ROC4 | 87.70mm,CX |
| Centerness | <2arcmin |
| S1 | >D32.6mm |
| S2&S3 | >D32.3mm |
| S4 | >D31.3mm |
| S1&S2 | <0.1mmx45deg |
| S3&S4 | <0.4mmx45deg |
| Standard | MIL-PRF-13830B |
| Inspection | Control items |
| Chamfer | Magnifier X6& naked eye test |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Achromatic Lens | Material: | Schott SF6 |
| Schott N-LAK14 | ||
| Diameter: | 36.50+0.00/-0.05mm | |
| Center thickness: | 5.5+/-0.1mm | |
| ROC1: | 104.10mm,CX | |
| ROC2=ROC3: | 44.70mm,Doublet | |
| ROC4: | 87.70mm,CX | |
| Surface quality: | S1&S2&S3&S4:60-40 | |
| Centerness: | <2arcmin | |
| Clear aperture: | S1:>D32.6mm | |
| S2&S3:>D32.3mm | ||
| S4:>D31.3mm | ||
| Chamfer: | S1&S2:<0.1mmx45deg | |
| S3&S4:<0.4mmx45deg | ||
| Standard: | MIL-PRF-13830B |
| Control items | Inspection instrument/method |
|---|---|
| Diameter: | Mitutoyo Vernier caliper |
| Surface Quality: | Naked eye test& 15W LED cold light |
| Flatness: | ZYGO 4"interferometer |
| Parallelism: | Thickness gauge |
| Chamfer: | Magnifier X6& naked eye test |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “36.50+0.00/-0.05mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “Naked eye test& 15W LED cold light”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “Magnifier X6& naked eye test”; state centration and edge chamfer.
- Coating — listed as “Anti-Reflection”; 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.
