|
Penta prism
can deviate an incident beam without inverting or reversing to 90°. The
deviation angle of 90° is independent of any rotation of the prism about
an axis parallel to the line of intersection of the two reflecting faces.
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 or enhanced aluminum.
Micro
Penta Prism
| Main Specifications
|
|
| Material |
BK7 Grade A optical
glass or Fused Silica |
| Dimension
Tolerance |
± 0.2mm |
| 90° Deviation
Tolerance |
Standard series: <
30 arc seconds
Precision series:
<10 arc seconds
NEW Super precision
series: <3 arc seconds |
| Flatness |
Standard series:
l/2 at 632.8 nm
Precision
series: l/4 at 632.8
nm |
| Reflectivity |
R > 95% per face
from 630 to 680 nm |
| Surface
Quality |
60-40 scratch and dig |
|
|
Standard Products
|
|
A x h (mm) |
Material |
3 min.
deviation |
1 min. deviation |
30 sec. deviation |
|
7 x 6 |
BK7 |
RPP101 |
RPP201 |
RPP301 |
|
8 x 8 |
BK7 |
RPP102 |
RPP202 |
RPP302 |
|
10 x
10 |
BK7 |
RPP103 |
RPP203 |
RPP303 |
|
12 x 12 |
BK7 |
RPP104 |
RPP204 |
RPP304 |
|
15 x
15 |
BK7 |
RPP105 |
RPP205 |
RPP305 |
|
20 x
20 |
BK7 |
RPP106 |
RPP206 |
RPP306 |
|
Note:
customized size and
coating are available upon request.
|
