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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

9mm Protected Silver Coated, Amici Roof Prism

Amici Roof Prisms

Stock #12-638 3-4 days
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Clear Aperture CA (mm):
Silver with protective overcoat
Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More
Surface Quality:
Amici Roof Prism
Dimensional Tolerance (mm):
Angle Tolerance (arcmin):
Resolution (arcsec):
Protective bevel as needed
Image Orientation:
Black Overpaint is 30-60µm Thick
Coating Specification:
Reflective Surfaces: Rabs > 97% FROM 400 - 2500nm @ 0° AOI
Ravg > 98% FROM 400 - 2500nm @ 0° AOI
Ray Deviation (°):
Wavelength Range (nm):
350 - 2200
Coating Type:
Damage Threshold, By Design: Damage threshold for optical components varies by substrate material and coating. Click here to learn more about this specification.
0.5 J/cm2 @ 532nm & 1064nm, 10ns
Power (fringes) @ 632.8nm:
Irregularity (fringes) @ 632.8nm:

Regulatory Compliance

RoHS 2015:
Reach 219:
Certificate of Conformance:

Product Family Description

  • Ray Deviation of 90°
  • Right Handed Image
  • 6 Arcsecond Resolution
  • Roof Surfaces Available Uncoated or Silver Coated

Amici prisms, also called “roof prisms” or “right angle roof prisms,” revert and invert the image as well as bend the line of sight through a 90°angle. Ideal for use in spotting scopes, and any optical instrument where it is desirable to take an inverted image from an objective, turn it right side up, and bend it through a 90° angle in order to maintain the correct visual orientation. With linearly polarized incident light, the light exiting an uncoated Amici prism is a mix of two elliptical polarizations which causes a reduction in contrast and resolution in some applications. The silver coated Amici roof prisms eliminate these issues.

Amici Roof Prism Tunnel Diagram
Amici Roof Prism Tunnel Diagram

Technical Information

A (mm) B (mm) C (mm) D (mm) Stock No. Uncoated Stock No. Protected Silver Coated
9.00 12.18 12.73 8.00 #45-662 #12-638
14.00 18.95 19.80 13.00 #45-261 #12-639