Ultra-realistic imaging: a new beginning for display holography

Hans I. Bjelkhagen; David Brotherton-Ratcliffe

doi:10.1117/12.2036283

25 February 2014 Ultra-realistic imaging: a new beginning for display holography

Hans I. Bjelkhagen, David Brotherton-Ratcliffe

Proceedings Volume 9006, Practical Holography XXVIII: Materials and Applications; 900603 (2014) https://doi.org/10.1117/12.2036283
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

Recent improvements in key foundation technologies are set to potentially transform the field of Display Holography. In particular new recording systems, based on recent DPSS and semiconductor lasers combined with novel recording materials and processing, have now demonstrated full-color analogue holograms of both lower noise and higher spectral accuracy. Progress in illumination technology is leading to a further major reduction in display noise and to a significant increase of the clear image depth and brightness of such holograms. So too, recent progress in 1-step Direct-Write Digital Holography (DWDH) now opens the way to the creation of High Virtual Volume Displays (HVV) - large format full-parallax DWDH reflection holograms having fundamentally larger clear image depths. In a certain fashion HVV displays can be thought of as providing a high quality full-color digital equivalent to the large-format laser-illuminated transmission holograms of the sixties and seventies. Back then, the advent of such holograms led to much optimism for display holography in the market. However, problems with laser illumination, their monochromatic analogue nature and image noise are well cited as being responsible for their failure in reality. Is there reason for believing that the latest technology improvements will make the mark this time around? This paper argues that indeed there is.

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Hans I. Bjelkhagen and David Brotherton-Ratcliffe "Ultra-realistic imaging: a new beginning for display holography", Proc. SPIE 9006, Practical Holography XXVIII: Materials and Applications, 900603 (25 February 2014); https://doi.org/10.1117/12.2036283

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KEYWORDS

Holograms

Holography

Digital holography

Light emitting diodes

Printing

Manufacturing

Cameras

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