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penta prism

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penta prism

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.

Specifications

Material:

BK7   Grade A optical glass

Dimension   Tolerance:

±0.2mm

90°   Deviation Tolerance:

according   to the table

Flatness:

λ/2(Standard),   λ/4(High Precision)@633nm


           

Reflectivity:

R >   95% per face @400-700 nm

Surface   Quality:

60-40   scratch and dig

Coating   on input and output sides:

Uncoated

Size(mm)

1 min. Deviation

30 Sec. Deviation

10Sec. Deviation

A x h

Part   No.

Part   No.

Part   No.

2.5 x   2.5

PTP1101

PTP1201

PTP1301

7x5

PTP1102

PTP1202

PTP1302

7 x 6

PTP1103

PTP1203

PTP1303

10 x   10

PTP1104

PTP1204

PTP1304

15 x   15

PTP1105

PTP1205

PTP1305

20 x   20

PTP1106

PTP1206

PTP1306

Note:The AR coating on input and output sides is available upon request.


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