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 The penta prism deflects a beam 900 regardless of the orientation of the
prism. It neither inverts nor reverses the image orientation. They are used in
rangefinders and viewfinders.
Reflecting surfaces are coated as specified below.
PP series
Specifications:
Material: high-quality BK7 Schott glass
Flatness: λ/2 at reflection surface
λ/4 at transmission surface
Surface Quality: 40-20 scratch and dig
90° Deviation Tolerance: ±3 arc min; ±10 arc sec
Coating: Reflective surfaces are aluminized.
| STOCK# |
A
(mm) |
B = C
(mm) |
D (mm) |
PRICE |
| 3 arc min. |
10 arc min. |
| PP101 |
PP201 |
10 |
10 |
10.8 |
$56.68 |
| PP102 |
PP202 |
12 |
13 |
14 |
$46.56 |
| PP103 |
PP203 |
15 |
15 |
16 |
$73.37 |
| PP104 |
PP204 |
20 |
20 |
22 |
$84.01 |
| PP105 |
PP205 |
25 |
25 |
27.1 |
$89.90 |
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