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Penta Prism
  • Detail

    Penta Prism is a five-sided prism containing two reflecting surfaces at 45° to each other, and two refracting faces perpendicular to the entering and emerging beams. The deviation angle of 90deg is thus independent of the orientation of the prism, making it especially important in applications in which the prism orientation cannot be precisely controlled. Due to the geometry that total internal reflection cannot be used, the reflecting surfaces must be coated with a metallic or dielectric coating. The standard Penta Prism reflecting surfaces are coated withaluminum or enhanced aluminum. The coated surfaces can be painted black .
The penta prism is a five-sided prism. It reflects light rays through a 90° angle by two reflections and does invert or revert the image. The reflecting surfaces are aluminized. Slight movement of the prism does not affect the true right angle at which light rays are reflected.It also shortens the optical path length of an instrument.


Specifications:

Material:

BK7

Diameter Tolerance:

+0.0, -0.2mm

Angular Tolerance:

see the table as follow

Flatness:

l/2 @ 632.8nm

Surface Quality:

60/40

Clear Aperture:

>80%

Bevel:

<0.25mm X 45°

Coating:

* S1&S2: Single layer MgF2 coating
* S3&S4: Aluminized and painted black



Dimension(mm)
Axh 

30 Sec. Deviation 

10 Sec. Deviation 

 

Part No. 

Part No. 

7x5

PTP1-201

PTP1-301

7x6

PTP1-202

PTP1-302

10x10

PTP1-203

PTP1-303

15x15

PTP1-204

PTP1-304

20x20

PTP1-205

PTP1-305

30x30

PTP1-206

PTP1-306

Contact US

#515,Tianhui Building, Yeqing 1st Road Longgang Zone, Shenzhen City
Guangdong,China,518000

TEL:+86-755-33295277

FAX:+86-755-33295277

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