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  2. Pepper's ghost - Wikipedia

    en.wikipedia.org/wiki/Pepper's_ghost

    "Holographic" show. An illusion based on Pepper's ghost involving projected images has been featured at music concerts (often erroneously marketed as "holographic"). [8] At the 2006 Grammy Awards, the Pepper's ghost technique was used to project Madonna with the virtual members of the band Gorillaz onto the stage in a "live" performance.

  3. Iridescence - Wikipedia

    en.wikipedia.org/wiki/Iridescence

    Iridescence in soap bubbles. Iridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear gradually to change colour as the angle of view or the angle of illumination changes.

  4. 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.

  5. Physics of optical holography - Wikipedia

    en.wikipedia.org/wiki/Physics_of_Optical_Holography

    An amplitude modulation hologram [3]: Section 3.5.3 is one where the amplitude of light diffracted by the hologram is proportional to the intensity of the recorded light. A straightforward example of this is photographic emulsion on a transparent substrate. The emulsion is exposed to the interference pattern, and is subsequently developed ...

  6. Zebra Imaging - Wikipedia

    en.wikipedia.org/wiki/Zebra_imaging

    Zebra Imaging was a company that developed 3D digital holographic images, hologram imagers and interactive 3D displays for government [1] and commercial uses. The company offers digital holograms that are autostereoscopic (no glasses or goggles required), full-parallax (viewing of the image from viewpoints above and below as well as from side to side) and in monochrome or full-color.

  7. 26 Retro Finds That Are Just The Right Amount Of Kitch - AOL

    www.aol.com/lifestyle/26-retro-finds-serve...

    Buckle up, time travelers – we're about to take a joy ride straight back to the era of neon everything and questionable hair choices. We've gathered 26 retro-inspired treasures that perfectly ...

  8. Rainbow hologram - Wikipedia

    en.wikipedia.org/wiki/Rainbow_hologram

    The rainbow hologram (also known as Benton hologram) is a type of hologram that was invented in 1968 by Dr. Stephen A. Benton at Polaroid Corporation (later MIT). [1] Rainbow holograms are designed to be viewed under white light illumination, rather than laser light which was required before this.

  9. Specular holography - Wikipedia

    en.wikipedia.org/wiki/Specular_holography

    This explains why scratch hologram images are subject to distracting distortions and collapse of the depth image outside of a very narrow field of view --- circular arcs are a fairly poor approximation to rainbow hologram fringes. Beaty also pointed out that the rainbow hologram of a single point is a rectangular section of nested parabolics. [5]