Half Penta Prism

Half Penta Prism is exactly a half cut from Penta Prism, it is widely used in telescope to deviate the line of sight by 45° without inverting or reverting the image. Shanghai Optics provides high quality prisms to meet your application.

Factory Standard – Contact us for manufacturing limit or custom specifications.

  • Material: BK7 Grade A optical glass, Corning Fused Silica 7980,  JGS1, JGS2
  • Dimension Tolerance: +/-0.1mm
  • Angle Tolerance: <5 arc seconds
  • Flatness: l/4 l@ 632.8 nm
  • Reflectivity: R > 95% per face from 630 to 680 nm
  • Surface Quality: 60-40 scratch and dig
  • Coating: On request


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