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- Commander Group Ltd By certification [File Integrity]
Room 4-9, No.2 building, No.18, Sugang Rd., Jiangyin, Jiangsu, China.
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deviate a beam of light by 90°.
Plumb Level, Surveying, Alignment, Range finding and Optical Tooling, Projection Optics Systems, Imaging Optics Systems, Optical Measurement Systems, Optical Display Systems, etc.
A pentaprism is a five-sided reflecting prism used to deviate a beam of light by 90°. It has two important characters, firstly 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 or mirror would. Secondly with the prism, a constant deviation angle applies to all rays transmitted by the useful aperture, regardless of the angles between these rays and the optical axis. So deviation is nothing to with prisms’ orientation.
Penta Prisms are used to define right angles in optical systems. Penta Prisms, which provide right handed images, feature a ray deviation of 90°. Penta Prisms are five-sided prisms are unaffected by slight movements. Edmund Optics offers a variety of Penta Prisms for optimal performance in the Ultraviolet (UV), Visible, or Infrared (IR) spectrums.
Material: N-BK7 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
Coating: Surfaces S1 & S2 :Single layer MgF2 coating
Surfaces S3 & S4: Aluminized and painted black
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