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Penta Prisms

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High Precision Optical Glass Penta Prisms

Penta prisms are five-sided prisms featuring a ray deviation of 90° and a right handed image


90° Deviation of Beam or Image

Right Handed Image
Coating are avaliable
  • product orgin:

    China
  • shipping port:

    Fuzhou China
  • payment:

    T/T Payment, Western Union
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High Precision Optical Glass Penta Prisms


Penta prisms are five-sided prisms featuring a ray deviation of 90° and a right handed image. The deviation angle of 90° is thus independent of the orientation of the prism, making it especially important in applications in which the prism orientation cannot be precisely controlled. Due to geometry that total internal reflection cannot be used, the reflecting surfaces must be coated with a metallic or dielectric coating. The standard Penta Prism reflecting surfaces are coated with aluminum or enhanced aluminum. Sometimes, the coated surfaces are with black painting.

 

Specifications:
Material: N-BK7, Fused silica or other optical glass
Dimension Tolerance: +0.0, -0.2mm
Surface quality: 60-40 S/D
Surface flatness: λ/4 @ 632.8nm
Angle Tolerance: ±30 arc sec(Standard);  ±5 arc sec(High Precision)
Clear Aperture: >85% of dimension
Bevel: <0.25mm×45°
Coating: Surfaces S1 & S2 :Single layer MgF2 coating 
Surfaces S3 & S4: Aluminized and painted black


Typical Sizes:
Deminsion:A×h(mm) Deminsion:Axh(mm)
2.5×2.5 2.5×2.5
7.0×5.0 10.0×10.0
15.0×15.0 20.0×20.0


Other Size, coating are available.

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If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!

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