Description
Porro prism 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 180deg but not inverted.
Porro Prism
Specifications
| Material: | BK7, UVFS |
|---|---|
| Dimension (Height): | 12.7 mm |
| Dimension (Width): | 12.7 mm |
| Dimension (Length): | 12.7 mm |
Download Data Sheet
Features
Dimension Tolerance +0.0/-0.2mm
Clear Aperture >80%
Deviation Up to 180°±10 arc seconds
Roof Angle Tolerance <5 arc seconds
Flatness λ/10@632.8nm
Wavefront Distortion λ/4@632.8nm
Surface Quality 60/40 scratch and dig
Chamfer Sharp roof, other protective chamfered
AR Coating Available
Frequently Asked Questions
What are the features of this Porro prism?
The features of this Porro prism include a dimension tolerance of +0.0/-0.2mm, clear aperture of >80%, deviation up to 180°±10 arc seconds, roof angle tolerance of <5 arc seconds, flatness of λ/10@632.8nm, wavefront distortion of λ/4@632.8nm, surface quality of 60/40 scratch and dig, and a sharp roof chamfer with other protective chamfered AR coating available.
How does a Porro prism work?
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 180deg but not inverted.
What is a Porro prism?
A Porro prism is a type of reflection prism that can be used to alter the orientation of an image.
What is the surface quality of this Porro prism?
The surface quality of this Porro prism is 60/40 scratch and dig.
Is an AR coating available for this Porro prism?
Yes, an AR coating is available for this Porro prism.
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