Security holograms employing perspectival anamorphosis and stereoscopy

Autor:	Ivo Aubrecht
Rok vydání:	2013
Předmět:	Physics business.industry Plane (geometry) Distortion (optics) media_common.quotation_subject Perspective (graphical) Holography Illusion Anamorphosis Oblique case Stereoscopy law.invention Optics law Computer graphics (images) business media_common
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.2017386
Popis:	A holographic diffraction structure that features stereoscopic pair of records with distorted perspective in the plane of the structure is designed and realized. On normal illumination and oblique binocular observation, the structure provides illusion of seeing an image oriented upright to its plane and located under it. The structure can be used as security DOVID.
Databáze:	OpenAIRE
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