Penta prisms are used to deviate an incident beam 90° independent of small positional changes of the prism with respect to the beam. The image is neither inverted nor reversed.
General Specifications
Material
N-BK7
Dimensional tolerance
±0.1mm
Surface quality
60-40 S/D
Flatness
λ/4@632.8nm
Bevel
Protective bevel
Surfaces S1 & S2
Single layer MgF2 coating
Surfaces S3 & S4
Aluminized and painted black
Deviation 90°accuracy:
<10"
<15"
<30"
< 1'
Typical Sizes
AxBxC(mm)
L1=L2(mm)
6.0x7.0x7.0
9.90
10.0x10.0x10.0
14.14
15.0x15.0x15.0
21.21
20.0x20.0x20.0
28.28
30.0x30.0x30.0
42.42
Beamsplitting Penta
Beamsplitter penta prism is a penta prism glued with a wedge on a reflecting surface. It is used to divide an incident beam into two separate beams: Transmission and Reflection. The image is neither inverted nor reversed.
