Penta Prisms

Penta Prisms


 Penta prisms bend the image by 90 degrees but leave the image unchanged.

 Capability

Attribute  Commercial Quality  Precision Quality 
Material N-BK7
Dimension Tolerance (mm)  ±0.20mm  ±0.05 mm 
Clear Aperture >80% >80%
Deviation 1 arc minute 10 arc seconds
Flatness lambda/2 at 632.8 nm lambda/4 at 632.8 nm
Surface Quality S/D 60-40  S/D 20-10 
Bevel 0.2-0.5mmX45° 0.2-0.5mmX45°
Coating Protective Al Coating + Single Layer MgF2 Coating
or Protective Ag Coating + Single Layer MgF2 Coating
Deviation  Deviation 3 min. Deviation 1 min. Deviation 30 sec.
A×h (mm) Part NO. Part NO. Part NO.
2.5×2.5 PTP1101 PTP1201 PTP1301
7×5 PTP1102 PTP1202 PTP1302
7×5 PTP1103 PTP1203 PTP1303
10×10 PTP1104 PTP1204 PTP1304
15×15 PTP1105 PTP1205 PTP1305
20×20 PTP1106 PTP1206 PTP1306