Product type: Flat Lens. Application: Lighting, Medical, Optical, Photography, Mineralogy.
Overview
Crystalline quartz quarter 1/4 zero order waveplate (retarder): a waveplate / polariser / grating made from Crystal quartz. Listed geometry: diameter 20.0+0/-0.2mm, thickness 2.0+/-0.5mm, single-lens shape. Optical / electrical data: transmittance >95%. Coating: Anti-Reflection. Typical applications: Lighting, Medical, Optical, Photography and Mineralogy. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Crystal quartz |
|---|---|
| Type | Flat Lens |
| Shape | Single-lens |
| Diameter | 20.0+0/-0.2mm |
| Thickness | 2.0+/-0.5mm |
| Transmittance | >95% |
| Coating | Anti-Reflection |
| Parallelism | <3arcsec |
| Clear aperture | >D18.0mm |
| Usage | Lighting, Medical, Optical, Photography, Mineralogy |
| Lenses Color | Clear |
| Flat | >19.7mm,as shown |
| R1 | infinity |
| R2 | infinity |
| Orientation of fast axis | in direction of mark,as shown |
| Chamfer | 0.2-0.3mmx45deg |
| Marked | fast axis marked with a white line |
| Standard | ISO 10110 |
| CPG is also an ISO | 9001&14001 certified manufacture, we deliver fast and provide best cost performance ratio for our customers. |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Description | |
|---|---|
| Material: | Crystal Quartz |
| Zero order waveplate | |
| Diameter: | 20.0+0/-0.2mm |
| Flat:>19.7mm,as shown | |
| Thickness: | 2.0+/-0.5mm |
| R1: | infinity |
| R2: | infinity |
| Surface quality: | S1&S2:5/3×0.1(S-D:40-20) |
| Parallelism: | <3arcsec |
| Orientation of fast axis: | in direction of mark,as shown |
| Clear aperture: | >D18.0mm |
| Chamfer: | 0.2-0.3mmx45deg |
| Marked: | fast axis marked with a white line |
| Standard: | ISO 10110 |
What to specify when you request a quote
- Material — listed as “Crystal quartz”; name the glass or crystal.
- Geometry — listed as “20.0+0/-0.2mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “0.2-0.3mmx45deg”; 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 AR Coating Process for Optical Glass Windows – Complete Manufacturing Overview. For an application example, read AR Coated Glass for Appliance Touch Screens: Specs and Selection. A related standard product is AR-Coated High-Transparency Optical Glass.
