Mr. Sachio Suda Profile

Sachio Suda

at Osaka Univ

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Proceedings Article | 5 March 2007 Paper

Volumetric three-dimensional display using transparent rotating Lanthanide(III) complexes sheet

Shintaro Hisatake, Sachio Suda, Junichi Takahara, Tetsuro Kobayashi

Proceedings Volume 6490, 64901H (2007) https://doi.org/10.1117/12.704937

KEYWORDS: 3D displays, 3D image processing, Mirrors, Image display, Semiconductor lasers, Luminescence, Ultraviolet radiation, Commercial off the shelf technology, Goggles

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We have developed a new type of volumetric three-dimensional (3D) image display which has a 360-degree, 3D volume group-viewing capability without the use of any special viewing aids or goggles. In our system, a clear thin photopolymer sheet dissolving Lanthanide(III) complexes is used. The Lanthanide(III) complexes used in our system are Eu(TTA)₃ Phen, designed for 615nm luminescence (red) against an exciting light of 395nm. Arbitrary luminous point is identified by three dimensional control of the excitation position of the Lanthanide(III) complexes dissolved photopolymer sheet. The specific point (x,y,z) is excited by laser diode beam. The direction of the exciting laser beam is controlled by two galvano mirrors so as to excite the specific two-dimensional point (x,y). The depth direction (z) of the 3D object is specified by controlling two galvano mirrors in synchronization with a photopolymer sheet rotation. The 3D images are expressed as an aggregate of these luminous point. In the experiment, we observed static 3D objects of a triangle. We also observed 3D animation of a 3D Lissajous curve. Displayed 3D objects integrated with real background because rotating photopolymer sheet is transparent (transparent 3D display).

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