Touchable Holography
A lot of work is currently going into creating Star Wars-esque 3D holograms that can be seen by the naked eye without wearing 3D glasses, and now researchers have found a way to make safe, touchable mid-air displays using femtosecond lasers. It is possible to create holograms in mid-air using a laser-induced plasma display, which works by ionising air molecules so that they release…
Subwavelength Gratings
A high reflectivity (>99%) subwavelength grating mirror (SWGM), yields a very broad reflection spectrum (1.3–2.1 μm), has been designed for parallel polarized (-polarized) incident light and evaluated by rigorous electromagnetic simulations. Design-sensitive analysis was made by varying one parameter…
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Hologram mobile phone
If you keep hold of the phone you already own until late 2015, you may have the chance to buy a new model with a holographic projector inside. That’s the vision of California-based startup Ostendo Technologies, which has been hard at work creating projectors small enough to be used in a mobile device…
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Make Hologram Stickers
Step1. Make holographic master origination (Master origination shooting system, 2D/3D or Dot-matrix) step2. Recombine Dot-matrix master in size of160mm*160. 2D/3D master doesn t need recombination. (Recombiner) step3. Copy operation nickel shim from holographic master origination(Electronic Forming Machine)…
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Holographic Display
Holographic 3-D Displays - Electro-holography within the Grasp of
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Hologram Pictures
The 1960s ushered in new technologies and new frontiers for image production. The development of laser technology in 1962 enabled the creation of holograms that displayed three-dimensional images on a two-dimensional surface. Artists were drawn to holography, hailed as a medium of the future that turned…
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Diffraction Uses
All waves are subject to diffraction when they encounter an obstacle in their path. Consider the shadow of a flagpole cast by the on the ground. From a the darkened zone of the shadow gives the impression that light traveling in a straight line from the Sun was blocked by the pole. But careful observation…
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Zero order diffraction
A simple experimental method of eliminating zero-order diffraction in the reconstructed image of off-axis digital holography is presented. Holographic diffraction grating acting as a beam splitter, an off-axis holography system is formed. The holograms of object with different recording parameters are…
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Parabolic Mirrors Hologram
Specular holography is a technique for making three dimensional imagery by controlling the motion of specular glints on a two-dimensional surface. The image is made of many specularities and has the appearance of a 3D surface-stippling made of dots of light. Unlike conventional wavefront holograms, specular…
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