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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: James C. Wyant
  • Vol. 46, Iss. 26 — Sep. 10, 2007
  • pp: 6520–6525

Simple technique for the fabrication of a penta prism with high accuracy right angle deviation

Sanjib Chatterjee and Y. Pavan Kumar  »View Author Affiliations


Applied Optics, Vol. 46, Issue 26, pp. 6520-6525 (2007)
http://dx.doi.org/10.1364/AO.46.006520


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Abstract

What we believe to be a new technique for the fabrication of a penta prism (PP) with high accuracy right angle deviation of the incident beam is presented. We derive simple formulas relating to the error in right angle deviation (∈) with the errors in 45° (β) and 90° (δ) angles of a PP, and we determine from the angle ( r ) between the plane wavefronts reflected from the right angled surfaces (external Fresnel reflection on the entrance surface and internal Fresnel reflection on the exit surface) of a PP and the angular error (δ) between the same surfaces. The error in right angle deviation is determined from the measurement of r using an autocollimator and a Fizeau interferometer, and is corrected to a high order of accuracy during the final stage of polishing one of the slanted surfaces of the PP. A new technique to determine the magnitude and direction of the small values of r is proposed and verified. The result for a PP is presented.

© 2007 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(220.4610) Optical design and fabrication : Optical fabrication
(220.4840) Optical design and fabrication : Testing
(230.5480) Optical devices : Prisms

ToC Category:
Optical Design and Fabrication

History
Original Manuscript: May 18, 2007
Revised Manuscript: July 6, 2007
Manuscript Accepted: July 9, 2007
Published: September 5, 2007

Citation
Sanjib Chatterjee and Y. Pavan Kumar, "Simple technique for the fabrication of a penta prism with high accuracy right angle deviation," Appl. Opt. 46, 6520-6525 (2007)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-46-26-6520


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References

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