HOLOGRAPHIC PRISM – THE NEW PLANE ANGLE MEASURE ON BASE OF HOLOGRAM ARRAY IN CRYSTALLINE PHOTOCHROMIC NANO-MATERIAL

Valery A. Granovsky, Mikhail D. Kudryavtsev, Alexandr I. Ryskin, Alexandr S. Shcheulin

Abstract

A new multivalued measure of plane angle is proposed, which is based on a highly stable system of superimposed holograms recorded in a photochromic material. Their mutual position forms a reference set of angles, which is stored by the measure and can be reproduced by a reference laser. The methods for fabricating a holographic measure (recording and reproducing holograms forming it) are discussed. One of two possible modifications of such a measure is implemented on the basis of calcium fluoride crystals with color centres. The technique for preparing this measure (holographic prism) and its properties are described. Based on this prism, one can develop a new generation of angle-measuring or -setting instruments that simultaneously satisfy two contradictory requirements, i.e., mobility and high discreteness and accuracy of angular measurements.

Keywords

plane angle measure, holographic prism, nano-material

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IMEKO-WC-2009-TC14-128.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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