Tel: +86 13067211468
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Penta Prisms

Penta Prisms

Penta Prisms

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 o..

Product Details

 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. 

 
By adding a wedge and with partial reflective coating on first reflective surface,Penta Prism can be used as Beamsplitter.We supply Beamsplitter Penta Prism with standard Transmission/reflection (T/R) ratio of 20/80,50/50.Other T/R ratio is available upon request.
 
Parameter
Typical Tolerance
High Precision
Material
H-K9L Grade A optical glass
Dimension Axh (mm)
2.5x2.5 ～ 50.0x50.0
Dimension Tolerance (mm)
±0.2 (General),
±0.05 (High Precision)
900 Deviation Tolerance
<1 min. (General),
<0.5 sec. (High Precision)
Flatness @633nm
λ/2 (General),
λ/4 (High Precision)
Surface Quality
60/40 (General),
20/10 (High Precision)
Reflection Coating
R>90%
Splitting Ratio(T/R)
20/80±5% or 50/50±5%
AR Coating
R<0.5%@400-700nm
 
Note for Penta Prism:
  1. Besides H-K9L glass, other optical glass is available for custom-made Penta Prisms.
  2. Penta Prism at bigger size is available.
  3. Typical deviation tolerance is 1 minute, better precision such as 30 sec, 10 sec, 5 sec., 3sec., 1sec., 0.5secis available.
  4. Typical reflection is >90% by Al coating, other metal coating such as Ag, Cu, or High Reflection Dielectric Coating is available.
  5. Typical Beam splitting Ratio T/R is 20/80±5% or 50/50±5%, other Ratio is available.

 

Interested in
this product

Tel:
+86 13067211468
E-mail:
sales@Accuray-oe.com