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Porro prism
It is a type of reflection prism which can be used to alter the orientation of an image. Light enters the large face of the prism, then hits on the roof, by total internal reflection twice from the roof, the beam exits again through the large face. An image traveling through a Porro prism is rotated by 180 deg but not inverted.
Specification:
Dimension Tolerance: +0/-0.2mm
Surface Quality: 60/40
Clear Aperture >80%
Flatness <λ/8@632.8nm
Deviation 180°±10 arc seconds
Roof Angle Tolerance <10 arc seconds
AR Coating : as customized
Protective Chamfer
Porro prism
It is a type of reflection prism which can be used to alter the orientation of an image. Light enters the large face of the prism, then hits on the roof, by total internal reflection twice from the roof, the beam exits again through the large face. An image traveling through a Porro prism is rotated by 180 deg but not inverted.
Specification:
Dimension Tolerance: +0/-0.2mm
Surface Quality: 60/40
Clear Aperture >80%
Flatness <λ/8@632.8nm
Deviation 180°±10 arc seconds
Roof Angle Tolerance <10 arc seconds
AR Coating : as customized
Protective Chamfer