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Products  >  Prisms  >  Penta Prisms
 
 
Penta Prisms
 

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.
 
Beamsplitter ratio (R:T)   80%:20% for 630-680nm (±5%)
 
Angular Deviation:  
<3"
<15"
<30"
< 1'
 
        How to order Penta Prisms?              Example:
Material:   N-BK7
Size:   15x15±0.1mm
Deviation:   ±15"
Surface quality:   60-40 S/D
Surface flatness:   λ/4 @633nm
   
Coating:   AR @430--680nm, R<0.5%, AOI=0°„
 
   Price on Request
 
   Custom Design
 
   Volume Discount 
 
 
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