Z-optics Co.,Ltd. - Optical Prism

A penta prism is a five-sided reflecting prism used to deviate a beam of light by 90°. The beam reflects inside the prism twice, allowing the transmission of an image through a right angle without inverting it (that is, without changing the image's handedness) as an ordinary right-angle prism would. The important properties of Penta Prism are

Main Specifications:

      Materical
      Diameter Tolerance(h)
      Diameter Tolerance(A)
      Surface Quality
      Flatness

      Reflectivity
      Coating

BK7
+/-0.1mm
+/-0.2mm
60-40 scratch and dig
λ/2@632.8nm
λ/4@632.8nm
R > 95% per face @ 630 to 680 nm
Aluminum and black painting are available

BK7 Standard Products

	Part No.
Axh (mm)	1 min. Deviation	30 sec. Deviation	10 sec. Deviation
7 x 6	PRS1100	PRS1110	PRS1120
10 x 10	PRS1101	PRS1111	PRS1121
15 x 15	PRS1102	PRS1112	PRS1122
20 x 20	PRS1103	PRS1113	PRS1123

High Precision Penta Prism

A wedge is added to get smaller deviation, which can be used in Plumb Level, Surveying, Alignment, Rangefinding and Optical Tooling.

Main Specifications:

      Materical
      Diameter Tolerance
      Surface Quality
      90° Deviation Tolerance
      Flatness
      Reflectivity

BK7
+/-0.25mm
60-40 scratch and dig
2 arc seconds
λ/4@632.8nm
R > 95% per face @ 630 to 680 nm

BK7 Standard Products

Axh (mm)	Part No. (2.5 sec. Deviation)
18 x 18	PRS1200

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