Product type: Prism. Application: Lighting, Medical, Optical, Photography, Astronomy.
Overview
25.4X50.8X5.8mm Sapphire Uncoated Optical Cylindrical Mirror Substrate: an optical mirror made from Optical Glass. Listed geometry: size 25.4×50.8+/-0.05mm, single-lens shape. Optical / electrical data: transmittance 90%-95%. Coating: HMC. 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 | Prism |
| Shape | Single-lens |
| Transmittance | 90%-95% |
| Coating | HMC |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Lenses Color | Clear |
| Specifications | Items |
| Dimensions | 25.4×50.8+/-0.05mm |
| Center thickness | 4.0+/-0.1mm |
| Edge thickness | 5.8+/-0.1mm(after corner bevel) |
| R1 | 200.0mm+/-2%,CC |
| R2 | infinity |
| Left surface | 3/10(2) |
| Right surface | fine ground |
| Centerness | <20arcmin |
| Perpendicularity | <0.02mm |
| Chamfer | <0.2mmx45deg |
| Standard | ISO 10110 |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Mirror substrate | Material: | Sapphire |
| Dimensions: | 25.4×50.8+/-0.05mm | |
| Center thickness: | 4.0+/-0.1mm | |
| Edge thickness: | 5.8+/-0.1mm(after corner bevel) | |
| R1: | 200.0mm+/-2%,CC | |
| R2: | infinity | |
| Flatness: | Left surface:3/10(2) | |
| Surface quality: | Left surface:5/3×0.10;L1x0.1;E0.3 | |
| Right surface:fine ground | ||
| Centerness: | <20arcmin | |
| Perpendicularity: | <0.02mm | |
| Clear aperture: | Left surface:>85% | |
| Chamfer: | <0.2mmx45deg | |
| Coating: | uncoated | |
| Standard: | ISO 10110 |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or crystal.
- Geometry — listed as “25.4×50.8+/-0.05mm”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “3/10(2)”; quote surface figure (λ) and scratch-dig.
- Centring and edges — listed as “5.8+/-0.1mm(after corner bevel)”; 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 Windows for UV and Laser Optical Systems. How parts like this are machined and finished is covered in Laser Assisted Glass Cutting for Tight Tolerance Parts. For an application example, read How to Handle and Maintain Precision Glass Components in Laser Systems. Before sending a drawing, check Technical Guide to Glass Thickness and Flatness Requirements. A related standard product is Laser Beam Splitter Glass Sheet.
