mixed reality projection display
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8/8/2019 Mixed Reality Projection Display
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Yutaka Tokuda
Kunihiro Nishimura, Suzuki Yasuhiro,
Tomohiro Tanikawa, Michitaka Hirose
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1. Motivation
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Mixed Reality Public Display without wearable device
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Fog Half Mirror
Plasma
2.1. Conventional Approach
Water
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2.2. Remaining Problem
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2.2. Remaining Problem
Multi-modality is missing
Visual-Olfactory-Tactile-Gustatory
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2.3. Our Approach
Particle transportation capability is essential
New immaterial media
Tranportability
Scent
particleIllumination
particleStimulus
particle
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Transportable
Stable
Controllable
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3.1 Vortex Ring
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On e fluid bursts into different fluidthrough the sharp edge o rifice
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3.2 How to create Vortex Ring?
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On e fluid bursts into different fluidthrough the sharp edge o rifice Vortex Ring
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3.2 How to create Vortex Ring?
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Olfactory projection display( Yanagida et al.)10
3.3 Previous Research
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3.4 Research Objective
Vortex Ring can beprojection screen ?
Fog particleScent particle
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1.Visibility - Can you see image?
2.Viewing angle - How wide to see ?
3.Practical problem -Any issue to solve ?12
4.1 Preliminary Experiment
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4.2.1 Experimental Setup
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4.2.2 Experiment Environment
L = 4.0 [m], = 0, 5, 10, 15 [deg]lighting condition = 0, 178 [lx]
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4.3.2 Result: Visibility at 178 [lux]
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4.3.3 Result: Viewing angle
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4.3.3 Result: Viewing angle
Mie Light Scatteringdirectional scattering due to a large particle (1 10 m)
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4.3.4 Result: Practical Problem
How can we reduce the disturbing wake?
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4.3.5 Vortex Ring Condition
Turbulent
Laminar
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4.3.5 Vortex Ring Condition
Turbulent
LaminarRe =
UD
Fn =L
D
U: Piston Speed [m/s]D: Diameter of orifice [m]
v : kinematic viscosity [m2/s]L: Piston Stroke [m]
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5.2 Prototype Experiment
U
L
Re =UD
Fn =L
D
L = 0.05, 0.10, 0.15 [m], D = 0.20, 0.25, 0.30[m]U = 0.20, 0.40, 0.60 [m/s], v= 15.11 x 10-6[m2/s]
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5.3 Result: Laminar Turbulent
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5.3 Result: Laminar Turbulent
< 10000, Fn < 1.2
otherwise
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5.3 Result
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5.4 Demonstration
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6. Conclusion
Vortex Ring: New media for Multi-modal mixed realitydisplay
Propose Vortex Ring based Immaterial ProjectionDisplay
Viewing angle around 40 [deg] Re < 10000 and Fn < 1.2 is desired for clear image
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6. Conclusion
Vortex Ring: New media for Multi-modal mixed realitydisplay
Propose Vortex Ring based Immaterial ProjectionDisplay
Viewing angle around 40 [deg] Re < 10000 and Fn < 1.2 is desired for clear image
How about Tactile, Gustatory ?
Vortex Ring Display Visual-Olfactory Display
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Any Questions?
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Result of Visibility Smoke Fo g
Radius(average() 0.560(30) 110(5)
Density High LowRemaining time(s) 510 0.31
Speed(cm/s) 86(cm/s) 100(cm/s)
Brightness Bright Dark
Smoke particles Fog particles33
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Prototype system
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