 |
Home | |
About Us | |
Products | |
Service | |
Contact Us | |
SiteMap |  |
 |
| 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 prisms are variants of the standard 90° prism but used
as a pair to displace and invert a beam. Porro prisms are widely
used in binoculars where they orientate the image correctly and
reduce the total length of the binoculars by a small amount. |
||
| This is the general standards we offer our customers, UNION OPTICS can supply other prisms meet your requirements, for detail information, please contact us. | ||
| Porro Prism | ||
 |
||
| Material: | BK7, Fused Silica | |
| Dimension Tolerance: | +0/-0.1mm | |
| Angle Tolerance: | 5 arc sec – 3 arc min | |
| Surface Quality: | 40/20 scratch and dig | |
| Flatness: | λ/4@632.8nm | |
| Bevel: | 0.2mmX45deg | |
| Coating: | As requested | |
Amici
Prism  Wedge
prism |
||
| Note: Usually, the material we used is Chinese material unless assigned. If you can not confirm which material is the right one, please contact us. | ||