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  2. Holography - Wikipedia

    en.wikipedia.org/wiki/Holography

    Holographic portraiture often resorts to a non-holographic intermediate imaging procedure, to avoid the dangerous high-powered pulsed lasers which would be needed to optically "freeze" moving subjects as perfectly as the extremely motion-intolerant holographic recording process requires. Early holography required high-power and expensive lasers.

  3. Physics of optical holography - Wikipedia

    en.wikipedia.org/wiki/Physics_of_Optical_Holography

    Holographic self-portrait, exhibited at the National Polytechnic Museum, Sofia. When the hologram plate is illuminated by a laser beam identical to the reference beam which was used to record the hologram, an exact reconstruction of the original object wavefront is obtained.

  4. Yves Gentet - Wikipedia

    en.wikipedia.org/wiki/Yves_Gentet

    His holographic material is currently used by 450 universities, companies or amateurs worldwide and his new 3D printer is on marketing development. Hologram of butterflies by Yves Gentet Marc, Portrait recorded on Holomaton system by Yves Gentet Holographic portraitrure recorded with Holomaton.

  5. Holographic optical element - Wikipedia

    en.wikipedia.org/wiki/Holographic_optical_element

    Holographic optical element (HOE) is an optical component (mirror, lens, directional diffuser, etc.) that produces holographic images using principles of diffraction.HOE is most commonly used in transparent displays, 3D imaging, and certain scanning technologies.

  6. Digital holography - Wikipedia

    en.wikipedia.org/wiki/Digital_holography

    Optical sectioning, also known as sectional image reconstruction, is the process of recovering a planar image at a particular axial depth from a three-dimensional digital hologram. Various mathematical techniques have been used to solve this problem, with inverse imaging among the most versatile. [18] [19] [20]

  7. Two sittings took place and to create a three-dimensional portrait, more than 10,000 images were made. The Prince of Wales switched on the Queen’s Holographic Portrait at the official unveiling ...

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

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

    TOKYO (Reuters) -Japan began circulating its first new banknotes in 20 years on Wednesday, featuring three-dimensional portraits of the founders of financial and female education institutions in ...

  9. Rainbow hologram - Wikipedia

    en.wikipedia.org/wiki/Rainbow_hologram

    This hologram is a transmission hologram, where the hologram is illuminated on one side, and viewed from the other. Illumination and viewing can be done from the same side, if the hologram is mounted onto a reflective surface. Mass replication of such holograms can be done using an embossing process. [3]