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Porro Prisms
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Porro prism is composed of incoming and outgoing surfaces and two mutually perpendicular right angle reflecting surfaces, it can be used to change the direction of an image, porro prism can be applied to orthophoto telescopes, imaging and observation systems.
Parameter Ranges:
Material：Optical Glasses, Fused Silica, Infrared Material, etc.
Dimensional Tolerance:+0/-0.2mm
Surface Quality：60 - 40
Flatness：<λ/10@632.8nm
Wavefront Distortion: <λ/4@632.8nm
Clear Aperture：>80%
Comprehensive Angle: 180°±10”
Roof Angle Accuracy: <5”
Bevel: Roof is sharp edges, others protective chamfers
Coating: As customer's request
The Apllications of Porro Prism
The porro prism is most commonly used in pairs with a combination of double porro prisms, the double porro prism system is suitable for small optical telescopes to change the image direction (arrangement of image reconstruction systems), especially in many binoculars, providing image reconstruction and longer optical path folding, effectively shortening the distance between the objective and eyepiece. Porro prism can be applied to imaging systems, observation systems, and rangefinders, and has a wide range of applications in lasers.
Porro Prisms
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