Product type: Convex Lens. Application: Lighting, Medical, Optical, Photography, Astronomy.
Overview
The Dia12.7mm VIS Coating Optical Doublet Achromatic Lens is supplied as an optical lens made from Optical Glass. Listed geometry: diameter 12.7+0.0/-0.1mm, cemented shape. Optical / electrical data: transmittance 90%-95%. Coating: HMC. Typical applications: Lighting, Medical, Optical, Photography and Astronomy. 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 | 12.7+0.0/-0.1mm |
| Transmittance | 90%-95% |
| Coating | HMC |
| Clear Aperture | >D9.0mm |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Lenses Color | Clear |
| Center thickness | 5.01+/-0.2mm |
| Edge thickness | 4.0+/-0.1mm |
| ROC1 | infinity |
| ROC2=ROC3 | infinity |
| ROC4 | 74.83+/-0.1mm CX |
| Centerness | <3arcmin |
| Chamfer | <0.25mmx45deg |
| Standard | MIL-O-13830B |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Achromatic Doublet | Material: | Schott N-FK5 |
| Schott F2 | ||
| Diameter: | 12.7+0.0/-0.1mm | |
| Center thickness: | 5.01+/-0.2mm | |
| Edge thickness: | 4.0+/-0.1mm | |
| ROC1: | infinity | |
| ROC2=ROC3: | infinity | |
| ROC4: | 74.83+/-0.1mm CX | |
| Surface quality: | S1&S2&S3&S4:60-40 | |
| Centerness: | <3arcmin | |
| Clear Aperture: | >D9.0mm | |
| Chamfer: | <0.25mmx45deg | |
| Standard: | MIL-O-13830B |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “12.7+0.0/-0.1mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “4.0+/-0.1mm”; state centration and edge chamfer.
- Coating — listed as “HMC”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Fused Silica and Quartz Glass: Selecting Materials for Precision Components. How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. 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).
