Penta Prisms

PPB

Penta Prisms
In stock
SKU
PPB
Penta prisms deviate an input beam by 270 degrees (-90 degrees) independently of the angle of incidence on the first surface. They are therefore useful as precise right angle mirrors which are insensitive to alignment. These penta prisms find many metrological applications.
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i
Penta Prism 20mm
PPB-20-4
20mm 20mm
6-12 weeks
£275.40
Material BK7
Surface flatness of substrate λ/4
Angle tolerance ±3′
Surface Quality <br> (Scratch-Dig) 40-20
Coating Aluminum coating +Black Paint
MgF2 Singlelayer Antireflection Coating
A 20mm
C 23mm
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Penta Prism 10mm
PPB-10-4
10mm 10mm
1 week
£215.60
Material BK7
Surface flatness of substrate λ/4
Angle tolerance ±3′
Surface Quality <br> (Scratch-Dig) 40-20
Coating Aluminum coating +Black Paint
MgF2 Singlelayer Antireflection Coating
A 10mm
C 10.8mm
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Penta Prism 25mm
PPB-25-4
25mm 25mm
1 week
£317.30
Material BK7
Surface flatness of substrate λ/4
Angle tolerance ±3′
Surface Quality <br> (Scratch-Dig) 40-20
Coating Aluminum coating +Black Paint
MgF2 Singlelayer Antireflection Coating
A 25mm
C 27.1mm
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Penta Prism 15mm
PPB-15-4
15mm
1 week
£263.40
Material BK7
Surface flatness of substrate λ/4
Angle tolerance ±3′
Surface Quality <br> (Scratch-Dig) 40-20
Coating Aluminum coating +Black Paint
MgF2 Singlelayer Antireflection Coating
A 15mm
C 16mm

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◦These penta prisms are Anti-Reflection coated on the entrance and exit faces as well as being coated with an aluminum coating and black paint on the internal reflection faces.

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