61-6929-73 Penta Prism A: 10mm PPB-10-4
Analyzer, Testing Equipment

61-6929-73 Penta Prism A: 10mm PPB-10-4

model: 61-6929-73
brand: SIGMAKOKI CO., LTD.

Product Description

Product Model: 61-6929-73Product Brand: SIGMAKOKI CO., […]

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Product Details

Product Model: 61-6929-73
Product Brand: SIGMAKOKI CO., LTD.

Features

  • Reflect twice with a mirror to convert the mirrored reflection into the same upright image as the object.
  • Before cameras went digital, pentaprisms were ***d to b*** light rays from objects at right angles so that the image was not mirror symmetric.
  • It is also ***d as a right-angle reference for laser markers.
  • Even if the angle of incidence to the prism changes, it always emits at 90 degrees to the incident ray.
  • Using the internal reflection of the prism is more compact than using two mirrors, beca*** there is no angular deviation.
  • * If you wipe the black paint with solvent, it may dissolve.
  • * Reflection of the inner surface of the prism by Al coating has a reflectivity loss of about 12% on one surface and 23% on two surfaces.
  • * The input/output efficiency is about 77%.

Spec

  • [ common specification]
  • Material: BK7
  • Base material surface accuracy: λ/4
  • Angle tolerance: ±3′
  • Scratch - dig: 40?20
  • Coating: Al coat + black coating, MgF 2 single layer reflective prevention coat
  • Effective diameter: Circle inscribed to 90% A dimensions of square
  • [Individual specification]
  • A: 10mm
  • C: 10.8mm
  • RoHS conform product

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