Results 241 to 250 of about 38,080 (271)
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Applied Optics, 1985
A cylindrical rainbow hologram is studied with a view to widening the horizontal viewing zone by using some unique mirror elements. The experimental result is compared with the calculation in reference to image blur and visual field restriction, both of which are caused by the fact that the rainbow hologram takes the shape of a cylinder. As a result, a
R, Sato, K, Murata
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A cylindrical rainbow hologram is studied with a view to widening the horizontal viewing zone by using some unique mirror elements. The experimental result is compared with the calculation in reference to image blur and visual field restriction, both of which are caused by the fact that the rainbow hologram takes the shape of a cylinder. As a result, a
R, Sato, K, Murata
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Disk hologram made from a computer-generated hologram
Applied Optics, 2009We have been investigating disk holograms made from a computer-generated hologram (CGH). Since a general flat format hologram has a limited viewable area, we usually cannot see the other side of the reconstructed object. Therefore, we propose a computer-generated cylindrical hologram (CGCH) to obtain a hologram with a 360 deg viewable area.
Takeshi, Yamaguchi +2 more
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Nature, 2016
Holographic techniques are fundamental to applications such as volumetric displays, high-density data storage and optical tweezers that require spatial control of intricate optical or acoustic fields within a three-dimensional volume. The basis of holography is spatial storage of the phase and/or amplitude profile of the desired wavefront in a manner ...
Kai Melde +3 more
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Holographic techniques are fundamental to applications such as volumetric displays, high-density data storage and optical tweezers that require spatial control of intricate optical or acoustic fields within a three-dimensional volume. The basis of holography is spatial storage of the phase and/or amplitude profile of the desired wavefront in a manner ...
Kai Melde +3 more
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Interferometry in Volume Holograms
Applied Optics, 1972An experimental demonstration is presented of interference fringes between two wavefronts recorded in a volume hologram by the double exposure technique and reconstructed by white light.
RIGHINI GC, RUSSO V, SOTTINI S
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Applied Optics, 1991
Hologram displays can be made very compact by utilizing a thick hologram cover plate, a laser diode attached to its edge, and by allowing the laser beam to expand within the cover plate. For improved illumination uniformity, the beam can be reflected or collimated by a mirrored opposite edge of the cover plate. The volume occupied by the display equals
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Hologram displays can be made very compact by utilizing a thick hologram cover plate, a laser diode attached to its edge, and by allowing the laser beam to expand within the cover plate. For improved illumination uniformity, the beam can be reflected or collimated by a mirrored opposite edge of the cover plate. The volume occupied by the display equals
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Optics Letters, 1990
In an attempt to make an easily viewable and self-contained test for stereopsis, a white-light reflection hologram was made of a Juleszian random-dot stereogram. The resulting hologram was free of monocular cues.
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In an attempt to make an easily viewable and self-contained test for stereopsis, a white-light reflection hologram was made of a Juleszian random-dot stereogram. The resulting hologram was free of monocular cues.
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Applied Optics, 1974
The positions and width of the fringes in a binary synthetic hologram are determined by the points at (x,y) that satisfy -q/2
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The positions and width of the fringes in a binary synthetic hologram are determined by the points at (x,y) that satisfy -q/2
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Acoustic Metagrating Holograms
Advanced MaterialsAbstractMetasurface holograms represent a common category of metasurface devices that utilize in‐plane phase gradients to shape wavefronts, forming holographic images through the application of the generalized Snell's law (GSL). While conventional metasurfaces focus solely on phase gradients, metagratings, which incorporate higher‐order wave ...
Hong‐Yu Zou +9 more
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Desensitized Hologram Interferometry
Applied Optics, 1970The possibility of using multiple-wavelength holography to obtain desensitized hologram interferometry is being investigated analytically and experimentally. A simple analysis has been performed, and its conclusions are supported by experimental results. These results indicate that the new techniques will extend by several orders of magnitude the range
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