Optical Penta Prisms

Optical Penta Prisms
*Prisms are blocks of optical material with flat polished sides arranged at precisely controlled angles to each other, which deflect, deviate or rotate beams of light as well as dispersing their wavelength.
We can manufacture many types of prism, each having a particular geometry to achieve the reflections necessary to perform a specific imaging task. Reflecting prisms may invert, rotate, deviate or displace a beam. Dispersing prisms produce spectral separation for spectroscopic applications or for tuning a laser output.

* The deviation angle of 90° 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 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 with aluminum or enhanced aluminum. Sometimes, the coated surfaces are with black painting.

*Specifications:
Material: N-BK7 or other optical glass
Dimension Tolerance: +0.0, -0.2mm
Surface quality: 60-40 S/D
Surface flatness: λ/4 @ 632.8nm
Angle Tolerance: ±30 arc sec(Standard); ±5 arc sec(High Precision)
Clear Aperture: >85% of dimension
Bevel: <0.25mm×45°
Coating: Surfaces S1 & S2 :Single layer MgF2 coating
Surfaces S3 & S4: Aluminized and painted black

*Please feel free to contact with us.Your specific requirements will be satisfied in professional service.More information,please refer to http://www.dnd-optics.com