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A transportable system for the in situ recording of color Denisyuk holograms in silver-halide panchromatic emulsions and an optimized illumination device.

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Title A transportable system for the in situ recording of color Denisyuk holograms in silver-halide panchromatic emulsions and an optimized illumination device.
Subtitle Applicatiions in the documentation of Greek Cultural Heritage artifacts
Alternative Title A transportable system for the in situ recording of color Denisyuk holograms of Greek cultural...
Title of Series The 9th International Symposium on Display Holography (ISDH 2012)
Part Number 17
Number of Parts 47
Author Sarakinos, Andreas
Lembessis, Alkis
Zervos, Nikos
License CC Attribution - NoDerivatives 2.0 UK: England & Wales:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.5446/21023
Publisher River Valley TV
Release Date 2012
Language English

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Subject Area Information technology
Abstract In this paper we will present the Z-Lab transportable color holography system, the HoloPhos illuminator and results of actual in situ recording of color Denisyuk holograms of artifacts on panchromatic silver halide emulsions. Z-lab and HoloPhos were developed to meet identified prerequisites of holographic recording of artifacts: a) in situ recording b) a high degree of detail and color reproduction c) a low degree of image distortions. The Z-Lab consists of the Z-3 camera, its accessories and a mobile darkroom. The Z-3 camera is a computer controlled opto mechanical device capable of exposing selected, commercially available, panchromatic silver halide emulsions to the combined red, green and blue laser beams at sufficient energy levels. Z-3 accessories include a vibration isolation platform and custom plate holders in the object’s space. The mobile darkroom is autonomous and environmentally friendly with closed circuits for chemical waste management. HoloPhos is an RGB LED based lighting device for the display of color holograms. The device is capable of digitally controlled intensity mixing and provides a beam of uniform color cross section. The small footprint and emission characteristics of the device LEDs result in a quasi point, narrow bandwidth, source at selected wavelengths. A case study in recording and displaying Greek cultural heritage artifacts with the aforementioned systems will also be presented.

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