Developmental research on simultaneous discrimination of shapes by a photoconductor plastic hologram automatically processed by solvent vapor

Isao Shimizu; Fumitake Kato; Takashi Isago; Katsumasa Ichige; Yoshie Otake; Shinji Arakawa

doi:10.1117/12.246659

23 August 1996 Developmental research on simultaneous discrimination of shapes by a photoconductor plastic hologram automatically processed by solvent vapor

Isao Shimizu, Fumitake Kato, Takashi Isago, Katsumasa Ichige, Yoshie Otake, Shinji Arakawa

Author Affiliations +

Proceedings Volume 2774, Design and Engineering of Optical Systems; (1996) https://doi.org/10.1117/12.246659
Event: Optical Instrumentation and Systems Design, 1996, Glasgow, United Kingdom

Abstract

A new technique has been developed to simultaneously and instantaneously discriminate the shapes of objects by using a Multiplexed Matched Spatial Filter (MMSF). In order to make a hologram automatically, rapidly and efficiently and to process the hologram on the initially setting place, the techniques processing a photoconductor-plastic plate by solvent vapor and cutting off tremor using optical system composed on a rail base have been developed by authors. The diffraction patterns generated from objects at the frontal focal plane of the convex lens in the parallel coherent laser beam are superimposed at the back focal plane of the lens and the information of these shapes are filtered by a hologram (MMSF). In a consequence of mention above, the grope of auto-correlation peaks discriminating the shapes of objects appear in each measuring field skew-symmetrically to the location of input objects. The spatial distributions of objects in each shape or size could be measured simultaneously and instantaneously using the technique.

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Isao Shimizu, Fumitake Kato, Takashi Isago, Katsumasa Ichige, Yoshie Otake, and Shinji Arakawa "Developmental research on simultaneous discrimination of shapes by a photoconductor plastic hologram automatically processed by solvent vapor", Proc. SPIE 2774, Design and Engineering of Optical Systems, (23 August 1996); https://doi.org/10.1117/12.246659

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KEYWORDS

Holograms

Diffraction

Photoresistors

Multiplexing

Spatial filters

3D image reconstruction

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