Pentaprism Dealers

• Type: Penta
• Material: Glass
• Pattern: Plain
• Country Origin: India
• Surface: Polished

• Material: BK7 Grade A optical glass
• Dimension Tolerance: ±0.2mm
• 90° Deviation Tolerance: according to the table
• Flatness: λ/2(Standard), λ/4(High Precision)@633nm
• Reflectivity: R > 95% per face @400-700 nm

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. 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. 

By adding a wedge and with partial reflective coating on first reflective surface,Penta Prism can be used as Beam splitter. We supply Beam splitter Penta Prism with standard Transmission/reflection (T/R) ratio of 20/80, 50/50. Other T/R ratio is available upon request.  Specification Remain Same as Penta Prism only You have to specify T/R Ratio while ordering with Sizes 

• Material: Optical Glass
• Reflectivity per face: > 95%
• Features: Compatible range,Excellent construction

A pentaprism lets you view the circular bubble as an erect image during setup and sighting.that help you make precise measurements even in the wettest conditions.

• Dimensional Tolerance:: + 0.1mm
• Surface Quality:: 60-40
• Angle Tolerance: + 15 arc sec.

Penta Prism is neither inverted nor reversed as it is deviated by 90o, It is a constant deviation prism, i.e. slight movement of the prism does not affect the true right angle at which light rays are reflected. It shortens the optical path length of an instrument.

• Dimensional Tolerance: + 0.1mm
• Angle Tolerance: + 15 arc sec

• Handle Material: Plastic
• Weight: 75-150 g

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