Penta prism can deviate an incident beam without inverting
or reversing to 90°.The deviation angle of 90° is independent
of any rotation of the prism about an axis parallel to the line of
intersection of the two reflecting faces. It is commonly used in Plumb
Level, Surveying, Alignment, Range finding and Optical Tooling. The
reflecting surfaces of this Prism must be coated with a metallic or
dielectric coating. The standard Penta Prism reflecting surfaces are
coated with aluminum or enhanced aluminum.
Specifications
Material:
BK7 Grade A optical glass
Dimension Tolerance:
±0.2mm
90° Deviation Tolerance:
according to the table
Flatness:
λ/2(Standard), λ/4(High Precision)@633nm
Reflectivity:
R > 95% per face @400-700 nm
Surface Quality:
60-40 scratch and dig
Coating on input and output sides:
Uncoated
Size(mm)
1 min. Deviation
30 Sec. Deviation
10Sec. Deviation
A x h
Part No.
Part No.
Part No.
2.5 x 2.5
PTP1101
PTP1201
PTP1301
7x5
PTP1102
PTP1202
PTP1302
7 x 6
PTP1103
PTP1203
PTP1303
10 x 10
PTP1104
PTP1204
PTP1304
15 x 15
PTP1105
PTP1205
PTP1305
20 x 20
PTP1106
PTP1206
PTP1306
Note:The AR coating on input and output sides is available
upon request.
