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High Precision Optical Glass Penta Prisms

Coated and inked pentagonal prism products

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

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    Fuzhou China

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    China
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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.

Application scenarios：

（1）Imaging system: Light can be reflected multiple times to present an upright image in the viewfinder for telescopes and photography；

（2）Measuring instruments: used for total stations or laser rangefinders, which have important applications in industrial surveying, real estate surveying, military ranging, etc.

 

Hot Tags : N-BK7 Penta Prisms Fused Silica Penta Prisms 90° Deviation Prisms Five Surfaces Prisms Optical Penta Prisms Coated Penta Prisms
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