Penta Prism is a Five –Side prism, It has two important properties ,First the image is neither inverted nor reverse while deviated by 90 degree. Secondly, It is a constant deflection device ;i.e all the transmitted rays are deviated by the same exact 90 degree. Slight movement of the prism does not effect the true right angle.

Category:

It is commonly used in Plumb Level, Surveying, Alignment, Range finding and Optical Tooling. The reflecting surfaces of this Prism must be coated with a metallic or dielectric coating. The standard Penta Prism reflecting surfaces are coated with aluminum with Black Paint.

LENSDRAWINGAPPLICATIONMATERIAL
Penta PrismFor custom applications, anti-reflection coatings are applied to the entrance & exit surfaces.BK7 Grade A optical glass
SPECIFICATIONGRADE
MaterialBK7
Diameter Sizen10mm To Maximumn
Thickness Tolerancen+0.0, -0.03mmn
Angle Of Incidence 45`
Surface Quality60-40 scratch and dig
Dimension+/-0.2 (General), +0/-0.05 (High Precision)n
Deviation Toleranceaccording to the table
Reflectivity R > 95% per face @400-700 nm
  • Other Diameter / Thickness Available on Request
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