Product type: Mirror Substrate. Application: Lighting, Medical, Optical, Photography, Astronomy. Model: Mirror substrate.
Overview
The 260X110X30mm Uncoated Borofloat Optical Mirror Substrate is supplied as an optical mirror made from Optical Glass. Listed geometry: diameter Mitutoyo Vernier caliper, size 260.0×110.0+/-0.1mm, rectangle shape. Optical / electrical data: transmittance 90%-95%. Supplied uncoated; surface quality Naked eye test& 15W LED cold light; flatness ZYGO 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 | Mirror Substrate |
| Shape | Rectangle |
| Diameter | Mitutoyo Vernier caliper |
| Transmittance | 90%-95% |
| Coating | Uncoated |
| Surface Quality | Naked eye test& 15W LED cold light |
| Flatness | ZYGO interferometer |
| Parallelism | <3arcmin |
| Clear aperture | >238.0×83.0mm ellipse |
| Usage | Lighting, Medical, Optical, Photography, Astronomy |
| Model NO. | Mirror substrate |
| Lenses Color | Clear |
| Specifications | Items |
| Dimensions | 260.0×110.0+/-0.1mm |
| Width | 30.0+/-0.1mm |
| ROC1 | infinity |
| ROC2 | infinity |
| Perpendicularity | <30arcsec between face A and B |
| Chamfer | sharp edge,chips<0.2mm |
| other edges | protected |
| Standard | MIL-PRF-13830B |
| Inspection | Control items |
| Supplier | CPG OPTICS LIMITED |
Technical data
| Items | Description | |
| 260x110x30mm | Material: | Schott Borofloat 33 |
| Dimensions: | 260.0×110.0+/-0.1mm | |
| Width: | 30.0+/-0.1mm | |
| ROC1: | infinity | |
| ROC2: | infinity | |
| All other faces:N/A | ||
| Surface quality: | face A:60-40 | |
| All other faces:fine ground | ||
| Parallelism: | <3arcmin | |
| Perpendicularity: | <30arcsec between face A and B | |
| Clear aperture: | >238.0×83.0mm ellipse | |
| Chamfer: | sharp edge,chips<0.2mm | |
| other edges: | protected | |
| Coating: | uncoated | |
| Standard: | MIL-PRF-13830B |
| Control items | Inspection instrument/method |
|---|---|
| Diameter: | Mitutoyo Vernier caliper |
| Surface Quality: | Naked eye test& 15W LED cold light |
| Flatness: | ZYGO 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 “Mitutoyo Vernier caliper”; 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 “sharp edge,chips<0.2mm”; state centration and edge chamfer.
- Coating — listed as “Uncoated”; list the band and reflectance or transmission target.
Engineering guides for this part
For material grades and coating options, see Borofloat Glass Wafers: Material & Coating Options for Substrates. How parts like this are machined and finished is covered in Laser Glass Machining for Precision Micro Features. 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 BF33 Microfluidic Glass Chip for Rapid Testing.
