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Changchun Hengyi Optics Supply Penta Prism
Posted at: TradersCity --> Offers to Sell and Export
Posted on: Wed 20 Feb, 2008 7:50 am
Penta Prisms
¨Neither inverting nor reverse imaging
¨Constant 90°deviation
The penta Prism is a five-sided prism, featuring two important properties. First, the image is neither inverted nor reversed while it is deviated by 90°. Secondly, it is a constant deflection device,i.e. all the transmitted rays are deviated by the same exact 90 degrees. Slight movement of the prisms does not affect the true right angle. This feature makes the prism useful in range-finders. It is also used in viewfinders of single reflex cameras. The reflecting surfaces are enhanced aluminum coated with black paint overcoat for protection.
Beam Deflection: 90°±3' or ±30".
Material: BK7, fine annealed or other materials
Dimension: ±0.1mm
Flatness: λ/8 at reflection surface; λ/4 at transmission surface
Surface Quality: 10-5 scratch-dig
Clear Aperture: 90%
Coatings: Reflecting surfaces are aluminum coated with black paint overcoat. Entrance and exit surfaces are MgF2 AR coated
_________________
Contact Name: Hellen Lu
Company Name: Changchun Hengyi Optics Co., Ltd
Email: Hellenzihan@hyoptics.net
Tel: 86-431-85299928
Fax: 86-431-85299928
Street Address: #5-9, Dongling South
Street, Changchun, Jilin, China
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Posted By Hyoptics
Country:  China
Member Since: 20 February 2008
Total Leads: 15
Business focus: Optical Crystal, Cylindrical Lenses, Parabolic Lenses, Filters, Prisms, Beamsplitters, Polarisers, Windows, Mirrors, Spherical Lenses, Gratings
  
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