Product type: Glass Dome. Application: Lighting, Medical, Optical, Photography, Astronomy.
Overview
The Dia2.2xCT0.3mm Micro Fused Silica Optical Glass Domes is supplied as a custom precision glass component made from Optical Glass. Listed geometry: diameter 2.2+/-0.1mm(outer), dome shape. Optical / electrical data: transmittance 90%-95%. Coating: HMC; surface quality 40-20. It is used in 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 | Glass Dome |
| Shape | Dome |
| Diameter | 2.2+/-0.1mm(outer) |
| Transmittance | 90%-95% |
| Coating | HMC |
| Surface quality | 40-20 |
| Clear Aperture | >90% |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Lenses Color | Clear |
| Specifications | Items |
| Center thickness | 0.3+/-0.1mm |
| Centerness | <3arcmin |
| Chamfer | protected |
| AR coating,R<0.25%@659.5nm,AOI | 0deg |
| Standard | MIL-PRF-13830B |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| Glass Dome | Material: | Fused Silica |
| Diameter: | 2.2+/-0.1mm(outer) | |
| 1.6+/-0.1mm(Inner) | ||
| Center thickness: | 0.3+/-0.1mm | |
| Surface quality: | 40-20 | |
| Centerness: | <3arcmin | |
| Clear Aperture: | >90% | |
| Chamfer: | protected | |
| Standard: | MIL-PRF-13830B |
What to specify when you request a quote
- Material — listed as “Optical Glass”; name the glass or quartz grade.
- Outline and thickness — listed as “2.2+/-0.1mm(outer)”; give outline, thickness and tolerances.
- Holes, slots and features — listed as “Dome”; dimension every hole and its position tolerance on the drawing.
- Edges — listed as “protected”; state edge finish and chamfer.
- Surface — listed as “40-20”; state polish and flatness where they matter.
Engineering guides for this part
For material grades and coating options, see Selecting Fused Silica and Quartz Glass for Precision Components. How parts like this are machined and finished is covered in CNC Glass V-Groove Machining for LED and Optical Parts. For an application example, read Why Quartz Glass Components Excel in Coffee Machine Heating Modules. Before sending a drawing, check Quartz Glass Manufacturing: Controlling Thermal Conductivity in Fused Silica. A related standard product is Custom Special-Shaped Glass Plate.
