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All Products / Optics / Prisms / Penta Prisms / N-BK7 Penta Prisms
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TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. TECHSPEC® components are designed, specified, or manufactured by Edmund Optics. Learn More

20mm, VIS 0° Coated, Penta Prism

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Stock #48-598 3-5 days
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S$171.10
Qty 1-5
S$171.10
Qty 6+
S$136.30
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Specifications

General

Type:
Penta Prism

Physical & Mechanical Properties

Length (mm):
20.00
Dimensional Tolerance (mm):
±0.10
Bevel:
Protective bevel as needed
Length of Legs (mm):
20.00

Optical Properties

Coating:
VIS 0° & Aluminized
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
N-BK7
Surface Quality:
60-40
Image Orientation:
Right-Handed
Coating Specification:
Entrance/Exit Faces: Ravg ≤0.4% @ 425 - 675nm
Reflecting Surfaces: Ravg >85% @ 400 - 700nm w/Black Overpaint
Ray Deviation (°):
90
Wavelength Range (nm):
425 - 675
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
Entrance & Exit Faces: 5 J/cm2 @ 532nm, 10ns
Reflecting Surfaces: 0.3 J/cm2 @ 532 & 1064nm, 10ns
Beam Deviation Tolerance (arcmin):
±5
Power (fringes) @ 632.8nm:
1.00
Irregularity (fringes) @ 632.8nm:
0.25

Regulatory Compliance

RoHS 2015:
Compliant
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Reach 223:
Compliant
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Certificate of Conformance:
View
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Product Details

  • Ray Deviation of 90°
  • Right Handed Image
  • Optical Tool for Defining a Right Angle
  • Additional Penta Prism Options Available

TECHSPEC® N-BK7 Penta Prisms are five-sided prisms featuring a ray deviation of 90° and a right-handed image. The reflecting surfaces are aluminized. Slight movement of the prism does not affect the true right angle at which light rays are reflected, making a penta prism the ideal optical tool for defining a right angle in an optical system. TECHSPEC® N-BK7 Penta Prisms are made from precision N-BK7 for use in a variety of visible light applications. These prisms are offered with a VIS 0º or MgF2 coating, in a variety of sizes. 

Technical Information

Penta Prism Ray Path
Penta Prism Ray Path
Penta Prism Tunnel Diagram
Penta Prism Tunnel Diagram
TECHSPEC® Penta Prism Dimensions
Stock No. Coating Dimensions
A B
#85-159 VIS 0° 0.50 0.60
#85-160 VIS 0° 1.00 1.20
#45-112 MgF2 5.00 6.10
#48-595 VIS 0°
#32-030 MgF2 10.00 11.95
#48-596 VIS 0°
#43-502 MgF2 15.00 15.96
#48-597 VIS 0°
#31-051 MgF2 20.00 21.65
#48-598 VIS 0°
#42-779 MgF2 25.00 27.90
#47-458 MgF2
#48-599 VIS 0°
#45-073 MgF2 30.00 32.47
#48-600 VIS 0°
#45-402 MgF2 35.00 37.88
#48-601 VIS 0°
#45-674 MgF2 40.00 43.30
#48-602 VIS 0°
#45-675 MgF2 45.00 48.71
#48-603 VIS 0°
#45-676 MgF2 50.00 54.12
#47-459 MgF2
#48-604 VIS 0°
N-BK7 Penta Prisms

Custom

Edmund Optics offers comprehensive custom manufacturing services for optical and imaging components tailored to your specific application requirements. Whether in the prototyping phase or preparing for full-scale production, we provide flexible solutions to meet your needs. Our experienced engineers are here to assist—from concept to completion.

Our capabilities include:

  • Custom dimensions, materials, coatings, and more
  • High-precision surface quality and flatness
  • Tight tolerances and complex geometries
  • Scalable production—from prototype to volume

Learn more about our custom manufacturing capabilities or submit an inquiry here.