Holographic apparatus using incoherent light

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United States of America Patent

PATENT NO 5081540
SERIAL NO

07511577

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Abstract

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A holographic apparatus of the type comprising a conoscopic system including a birefringent crystal inserted between two polarizers, wherein the apparatus also includes an aperture angle limiter inserted on the path of the light rays and wherein one of the birefringent crystal and the aperture angle limiter is disposed off the optical axis of the apparatus.

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Patent Owner(s)

  • L'ETAT FRANCAIS REPRESENTE PAR LE MINISTRE DES POSTES, DES TELECOMMUNICATIONS ET DE L'ESPACE (CENTRE NATIONAL D'ETUDES DES TELECOMMUNICATIONS);CDO-CONTROLE DIMENSIONNEL OPTIQUE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chavel, Pierre Chilly Mazarin, FR 11 668
Dufresne, Eric Paris, FR 5 53
Sirat, Gabriel Paris, FR 9 146

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