Product type: Penta Angle. Application: Digital Device. Model: SRT029.
Overview
Optical Bk7 K9 Glass Penta Angle Prisms: an optical prism made from Glass. Listed geometry: pentagonal prism shape. Surface quality 20-10; flatness 1/10 Lambda. It is used in Digital Device. Dimensions, material grade, coating and finish can be quoted to your drawing; the values above are the listed starting point.
Specifications
| Material | Glass |
|---|---|
| Type | Penta Angle |
| Shape | Pentagonal Prism |
| Surface Quality | 20-10 |
| Flatness | 1/10 Lambda |
| Application | Digital Device |
| Usage | Test |
| Model NO. | SRT029 |
| Tolereance | +0.00/-0.002mm |
| Angle Tol | <0.2 Seonds |
| Supplier | Changchun Sunday Optics Co., Ltd. |
Technical data
| Material | BK7, UV Fused Silica,Sapphire, ZnSe,Caf2,Si,Ge,etc. |
|---|---|
| Size | 3mm-380mm |
| Size tolerance | +/-0.02mm or customer request |
| Clear Aperture | >90% |
| S/D | 60-40 40-20 20/10 10/5 |
| Flatness | 1/10lambda at 632.80nm |
| Chamfer | 0.25mmx45° |
| Angle tolerance | <2''<3''<30''<1'<3' |
| Coating | AR, HR, Aluminum, Silver or customer request. |
What to specify when you request a quote
- Material — listed as “Glass”; name the glass or crystal.
- Geometry — listed as “<0.2 Seonds”; give diameter, focal length or radii, angles and tolerances.
- Surface figure — listed as “20-10”; quote surface figure (λ) and scratch-dig.
- Centring and edges — state centration and edge chamfer.
- Coating — list the band and reflectance or transmission target.
Engineering guides for this part
How parts like this are machined and finished is covered in Flat Glass Polishing Process for Precision Substrates. Before sending a drawing, check Design Guide for Holes, Slots, and Edges in Custom Glass Parts.


