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  2. Holography - Wikipedia

    en.wikipedia.org/wiki/Holography

    The hologram keeps the information on the amplitude and phase of the field. Several holograms may keep information about the same distribution of light, emitted to various directions. The numerical analysis of such holograms allows one to emulate large numerical aperture, which, in turn, enables enhancement of the resolution of optical microscopy.

  3. Physics of optical holography - Wikipedia

    en.wikipedia.org/wiki/Physics_of_Optical_Holography

    There are three important properties of a hologram which are defined in this section. A given hologram will have one or other of each of these three properties, e.g. an amplitude modulated, thin, transmission hologram, or a phase modulated, volume, reflection hologram.

  4. High-tech cash: Japan launches banknotes with hologram portraits

    www.aol.com/news/japans-first-banknotes-20-years...

    The notes use printed patterns to generate holograms of the portraits facing different directions, depending on the angle of view, employing a technology that Japan's National Printing Bureau says ...

  5. Holographic display - Wikipedia

    en.wikipedia.org/wiki/Holographic_display

    A holographic display is a type of 3D display that utilizes light diffraction to display a three-dimensional image to the viewer. Holographic displays are distinguished from other forms of 3D displays in that they do not require the viewer to wear any special glasses or use external equipment to be able to see the image, and do not cause a vergence-accommodation conflict.

  6. Holographic interferometry - Wikipedia

    en.wikipedia.org/wiki/Holographic_interferometry

    Since its introduction, vibrometry by holographic interferometry has become commonplace. Powell and Stetson have shown that the fringes of the time-averaged hologram of a vibrating object correspond to the zeros of the Bessel function (), where (,) is the modulation depth of the phase modulation of the optical field at , on the object. [1]

  7. Holograms, Robots, and the Coolest Tech We Saw at CES 2025

    www.aol.com/holograms-robots-coolest-tech-saw...

    Blade Runner Style Holograms. This is why I came to CES. This is the shit I want, like the Blade Runner 2049 meme. The London-based software company Hypervsn made a splash on the Las Vegas ...

  8. Digital holography - Wikipedia

    en.wikipedia.org/wiki/Digital_holography

    Digital holography is the acquisition and processing of holograms with a digital sensor array, [1] [2] typically a CCD camera or a similar device. Image rendering, or reconstruction of object data is performed numerically from digitized interferograms.

  9. Computer-generated holography - Wikipedia

    en.wikipedia.org/wiki/Computer-generated_holography

    Computer-generated holography (CGH) is a technique that uses computer algorithms to generate holograms.It involves generating holographic interference patterns.A computer-generated hologram can be displayed on a dynamic holographic display, or it can be printed onto a mask or film using lithography. [1]