C on f e r e n c e P r o g r a m

LDC[LDC-Opening]13:00-13:10
Opening Remarks
Chairs: Kazuo Kuroda
		 Utsunomiya University
		 Fergal Shevlin
		Dyoptyka[LDC-1]  13:10-14:40
KeynoteChairs: Sunao Kurimura
		NIMS
		 Fergal Shevlin
		Dyoptyka

LDC-2-03  15:40
Multiple Aquatic Image Formation with
Faced Mirror Structure and Polarized
AIRR
Kazunari Chiba‌1‌, Masaki Yasugi‌1,2‌,
Hirotsugu Yamamoto‌1,2‌‌1‌
Utsunomiya University, ‌2‌JST ACCELThis paper proposes a new way of 3D
display application. Multiple aquatic images
were formed using the principle of infinity
mirror and Aerial Imaging by RetroReflection (AIRR). We have successfully
improved the brightness of aquatic imagesby use of polarization modulation.

Tuesday, 20 April[LDC-3]  10:00-11:30
AR, MR, VR, ... XR Technologies 2- Viewing Angle in AR/VR Display
and Devices Chairs: Hidekazu Hatanaka
		Ushio		 Tetsuya Yagi
		 NICHIA CORPORATION

LDC-3-01  10:00
Invited
Expanding Field-of-view in Headmounted Displays Considering
Characteristics of Vision

Wataru Yamada, Hiroyuki Manabe
NTT DOCOMO, INC.
Field of view (FOV) is one of the key
parameters for the performance ofhead-mounted displays. Focusing on the
differences between central vision andperipheral vision, we developed a technique
Daiki Kudo‌1,‌ Kazunari Chiba‌1‌, Masaki Yasugi‌1,2‌, for expanding the FOV of a head-mounted
display at low cost by using lenses with
Nao Ninomiya‌1‌, Hirotsugu Yamamoto‌1,2‌‌1‌
different levels of magnification.
Utsunomiya University, ‌2‌JST ACCEL

LDC-1-01  13:10
InvitedLDC-2-04  15:55
Laser Light Sources for Specialty and
Influence of Diverging Angle of theAutomotive Lighting Applications
Light Source on the Image Spot
Paul Rudy
Formed in Water by Use of RetroKYOCERA SLD Laser
Reflection

We provide a description on the rapidly
expanding capabilities of laser lighttechnology, including 1000 lumen sources
with luminance above 1000 cd/mm2, morethan 10x that of LEDs, from surface mountdevice components.

The aquatic display has been realized withaerial imaging by retro-reflection (AIRR). We
confirmed that the spread of a point image
formed in water from a point source placed
LDC-1-02  13:55
Invited in the air changes depending on theLaser Technologies in Novel Medical
divergence angle of the light from theImagingsource.
Albert P Heberle
Openwater
We are devising a new generation of
portable medical imaging technologies for
improved access to medical diagnoses andtreatments. Our breakthrough systems use
opto-electronics and holography together
with novel lasers to enable low costequipment that rivals the resolution andimage quality of multi-million dollar medical
imaging scanners.

[LDC-2]  14:55-16:10
AR, MR, VR, ... XR Technologies 1- Aerial & Aquatic Display Chairs: Frank Fischer
		 Bosch Sensortec GmbH		 Norihiro Ohse
		 Sony Group Corporation

LDC-2-01  14:55
Invited
3D Interface by Parity Mirror and Its
Applications
Yuki Maeda
Parity Innovations Co., Ltd.
An optical imaging device for air floating
image display and its applications are
introduced in this paper. An observer can
see the air floating image by the naked eye
and manipulate it by touching the air floating
image using non-contact sensor.

LDC-2-02  15:25
Subjective Super-Resolution Display
on Aerial LED Signage Formed with
Aerial Imaging by Retro-Reflection
Kojiro Matsushita‌1‌, Akinori Tsuji‌2,‌
Toyotaro Tokimoto‌3,‌ Hirotsugu Yamamoto‌1,4‌‌1‌‌
Utsunomiya University, ‌2Tokushima
University,‌3‌‌
XAiX, LLC, ‌4JST
ACCEL
We have realized a novel aerial display thatfeatures higher resolution than thelight-source LED. We have realized
subjective super-resolution display, whichmakes viewers perceive finer resolution than
the actual number of pixels, on aerial LED
signage by use of our designed high-speed
LED display circuit and aerial imaging optics.

OPIC 2021・19-22 April, 2021

LDC-3-02  10:30
Analysis on Viewing Angle in Aerial
Display by Use of an LED Panel
Covered with Apertured RetroReflector[LDC-4]  15:15-17:00
AR, MR, VR, ... XR Technologies 3- xR Concepts Chairs: Ray-Hua Horng		 National Chiao Tung University
		 Masafumi Ide		 Lambda Works

LDC-4-01  15:15
InvitedIntroduction of xR Use Case at Toyota
Koichi Kayano
TOYOTA MOTOR CORPORATION
In general, there have been many examples
of engineering using xR technology.
However, unfortunately, there are few
examples of its use in the customer service
field. Toyota is currently demonstrating theuse of HoloLens 2 in dealerships. This
presentation will explain the case study,
results, and points to keep in mind.

ProgramMonday, 19 April

LDC-4-02  15:45
InvitedIntroducing KDDI’s Activities in XR andSpatial Computing Towards 5G

Katsuhiro Kozuki
KDDI CORPORATION
The presentation will explain about KDDI’s
recent activities in VR, AR andMR(collectively XR) enhanced by its 5G
Daiki Nishimura‌1,‌ Masaki Yasugi‌1,2‌,
system, mobile edge computing and AR
Hirotsugu Yamamoto‌1,2‌
cloud technologies with 5G smartphone and‌1‌‌
Utsunomiya University, ‌2JST,
ACCEL
tethered AR glasses products. Introducing
This paper proposes an analytical model on from PoC level promotional events tothe viewing angle of the aerial image formed commercially available products andover an LED panel. Our optical system forms services on 5G networks.
aerial signage over a specially fabricatedLED panel. A half mirror is placed in front of LDC-4-03  16:15
the LED panel that is covered withDeforming Aerial Image by Use ofretro-reflector with square-shaped holes.

LDC-3-03  10:45
Increasing Luminance of Aerial Image
Formed with AIRR by Use of Dual
Transparent Spheres

Deflection of Beam Splitter in SeeThrough AIRR

Kosuke Inoue‌1‌, Masaki Yasugi‌1,2‌,
Hirotsugu Yamamoto‌1,2‌‌1‌
Utsunomiya University, ‌2‌JST, ACCELThis paper proposes a novel aerial display
Kengo Fujii‌1‌, Satoshi Maekawa‌2‌,
optics to display a three-dimensional aerial
Hirotsugu Yamamoto‌1,3‌
image by intentionally creating irregular‌1‌‌2‌
Utsunomiya University, Parity Innovations Co., deflection. Irregular deflection is occurred by‌3‌Ltd., JST ACCEL
pulling the acrylic plate forward with a piano
We propose a method to form aerial display wire and partially raising it. We succeeded in
by installing two transparent spheres in the forming aerial images that appear differently
light path of AIRR. By proposed method, we depending on the viewpoint.
confirmed by simulation that the luminanceof the aerial image was increased.
LDC-4-04  16:30
InvitedLDC-3-04  11:00
InvitedCompact Full-color Laser Beam
Projectors Based on Waveguide-type
RGB Multiplexers
Toshio Katsuyama‌1‌, Akira Nakao‌1,‌
Shoji Yamada‌1‌, Osamu Kawasaki‌2,‌
Kazuki Iwabata‌2,‌ Koichi Horii‌2‌, Akira Himeno‌1,2‌‌1‌
University of Fukui, ‌2‌SEIREN KST Corp.
Compact full-color laser sources and laser
beam scanning modules are demonstrated.
Those are based on waveguide-type RGB
multiplexers. In principle, their output laser
beams are perfectly aligned, which
inevitably leads to clear projection images.
Thus, compact imaging projectors areconstructed, which are applicable to avariety of imaging fields.

Why Lasers are Key to Make Smartand AR Glasses the Next Big Thing
Lucas Ginzinger
Bosch Sensortec GmbHThe world has been waiting for the big bangin consumer smart glasses not only since
Google Glass. Besides use case readiness,
the tech maturity is playing a major role inthe delayed market of smart/AR glasses for
consumers. In his presentation, Lucas
Ginzinger, Head of Product Area Optics, talks
on the major levers to overcome the hurdles
for a successful market entry - the role oflaser beam scanning projectors as the key
enablers to high volume smart and AR
glasses.

51

C on f e r e n c e P r o g r a m

LDC

ProgramWednesday, 21 April

52[LDC-5]  10:00-11:45
Imaging / Lighting[LDC-6]  13:00-14:30
Light Sources and Components

Chairs: Hirotsugu Yamamoto
		 Utsunomiya University
		 Hisashi Masuda
		 Oxide Corporation

Chairs: Paul Rudy
		 KYOCERA SLD Laser
		 Hiroyuki Matsumoto		 Iwasaki Electric

LDC-7-02  15:15
Improvement of Color LiDAR with RGB
Visible Single-Mode Laser Diodes

Masato Ishino, Tomoyuki Ohashi, Hiroshi Fuji,
Kana Fujioka, Kazuhisa Yamamoto
Osaka University
We report on the performance improvement
LDC-5-01  10:00
Invited LDC-6-01  13:00
Invited of a color LiDAR with RGB visible laser
diodes (LD). By using LDs with single lateral
Laser TV Progress with Visible Laser
Nanowire LEDs with Ultrastablemode as the light sources, a short pulse
Improvement
Emission Characteristics anddriver, and a high-sensitivity detector,
Monolithically Integrated Multicolour
Xianrong Liu
distance and color evaluations with small
Emission
Hisensedeviations and a low LD-operation power
Zetian Mi, Xianhe Liu, Yi Sun,
Laser TV progress with visible laser
have been achieved.
Yakshita Malhotra, Yuanpeng Wu
improvement will be presented.
University of Michigan
LDC-5-02  10:30
Invited We report on the design and demonstration LDC-7-03  15:30
of monolithically integrated InGaN/GaN
Thermal Property of AlN-Ce:YAG
Large-Scale Full-Parallax Full-Color
micro-LEDs with multi-colour emission using Composite Ceramics Phosphor for
Computer-Generated Holograms
selective area molecular beam epitaxy,
Laser Lighting
Reconstructed by Laser/LED Lighting
which exhibit unique properties including
Takuya Sawada, Hiroshi Huji, Kenta Yagasaki,
Kyoji Matsushima
ultrastable operation, extremely narrow
Hisashi Minemoto, Yukio Manabe,Kansai University
linewidth, and highly directional emission.
Kana Fujioka, Kazuhisa Yamamoto
Recently, full-color computer-generated
Institute of Laser Engineering, Osaka University
holograms (CGH) are created by several
LDC-6-02  13:30
Invited We have developed AlN-Ce:YAG composite
techniques. These CGHs can be
ceramics in order to suppress thermal
Emission Characteristics of Random
reconstructed using an LED or RGB laser
quenching, and measured thermal property
Lasers and Their Control
light source. The creation and lighting
when the ceramics were irradiated with a
Takashi Okamototechniques are introduced for promoting
high-power laser.
Kyushu Institute of Technology
development of light sources for computer
Random lasers are mirrorless lasers
holography.
[LDC-8]  16:00-17:00
comprising scatterers and an active
medium. Multiple scattering of light provides Laser Technology for Automotive
LDC-5-03  11:00
Applications 2
the feedback mechanism for lasing. In this
Improvement of Color Rendering Index talk, I will present the mechanisms andChairs: Abdelmalek Hanafi
of BGYR Laser Illuminats
		BMW
properties of a random laser and emission
Yoshio Manabe, Masato Ishino, Hiroshi Fuji,
		 Tatsushi Hamaguchi
control methods.
Akira Takamori, Junichi Kinoshita,		 Sony Group Corporation
Kana Fujioka, Kazuhisa Yamamoto
LDC-6-03  14:00
InvitedInstitute of Laser Engineering, Osaka University
InvitedPurcell-Effect-Enhanced Red Emission LDC-8-01  16:00
We have attempted to improve Color
GaN-based Vertical-Cavity Surfacefrom Eu Ions in GaN Cavities
Rendering Index of Blue-Green-Yellow-Red
Emitting Lasers with Lattice-Matched
Yasufumi Fujiwara, Dolf Timmerman,
four-color Laser illuminants. As a result,
AlInN/GaN DBRs
Shuhei Ichikawa, Jun Tatebayashi
average color rendering index Ra and
Tetsuya Takeuchi‌1‌, Satoshi Kamiyama‌1‌,
Osaka University
special CRI( R9 ) as high as 80 around at
‌1‌
‌1,2‌
Luminescence properties of a Eu-doped GaN Motoaki Iwaya , Isamu Akasaki
5000 K were obtained by optimizing the‌1‌
Meijo University, ‌2‌Nagoya University
microdisk cavity and a two-dimensional
BGYR wavelengths and their laser power
GaN-based vertical-cavity surface-emitting
photonic crystal nanocavity aredensities.
lasers (VCSELs) have been intensively
demonstrated. The resonant modes arecoupled with indirectly excited Eu3+ ions and developed, showing high performances
LDC-5-04  11:15
toward practical uses. We show in-situ wafer
enhance drastically Eu emission, which isColor Shift Behavior at Image Patterncurvature evolutions during the epitaxial
due to the Purcell effect.
Edges of Raster-scan RGB Mobile
growth of AlInN/GaN DBRs and an
Laser Projectors
implementation of nano-height cylindrical[LDC-7]  14:45-15:45‌1‌‌1‌
Junichi Kinoshita , Akira Takamori ,waveguides in the VCSELs. RoomLaser
Technology
forAutomotive‌1‌‌2‌Kazuhisa Yamamoto , Kazuo Kuroda ,temperature continuous-wave operations ofApplications
1‌3‌
Koji Suzuki
the VCSELs with large apertures up to 30 µm‌1‌‌2‌Chairs:
Jared
KearnsOsaka Universitry, Utsunomiya University,
diameter have been demonstrated.
‌3‌
		
Sony
Group
Corporation
OXIDE Corporation
		 Masaru Kuramoto
Color shift behavior at image pattern edges
LDC-8-02  16:30
		 STANLEY ELECTRIC CO., LTD.
of three rater-scan RGB mobile projectors is
Freeform Lens Design for Highanalyzed. The speckle noise effects are
Invited Efficient LED Low-Beam Headlamp
eliminated. Pure color shift is clearly picked LDC-7-01  14:45
Lens
up and analyzed.
Laser Crystal Phosphor Automobile
Zhengbo Zhu, Shili Wei, Wenyi Li, Donglin Ma
Headlight Integrated with Beam
Huazhong University of Science andControl and LiDAR
LDC-5-05  11:30
Technology
Kenneth Li‌1,‌ Y. P. Chang‌2‌
Ultra High Resolution and VAC-free‌1‌‌
Optonomous Technologies Inc., ‌2Taiwan
Color We develop a least-squares ray mapping
N3D Technology and its Applications
method to design freeform lens for
Optics, Inc.
Chin-Yung Hsieh‌1,‌ Hao-Yu Liu‌1‌,
LED-based low-beam headlamp optical
This invited paper presents our current
Ruey-Jer Weng‌1,‌ Wei-Yi Lu‌1,‌ Naoki Sumi‌2‌
system, the produced irradiance distribution‌1‌‌
research in the subject of integrated Beam
Innolux Corporation, ‌2Innolux
Japan K.K.
Control Headlight and LiDAR, which includes conformed to the United Nations Economic
In this paper, we introduce the Innolux N3D
Commission for Europe vehicle regulations
a DMD pixel-based system and a polygon
technology with ultra high resolution and its(ECE) R112. The energy efficiency reaches
scanning mirror-based system. Single
vergence-accommodation conflict free
up to 84% considering the Fresnel loss.
crystal phosphor is used providing highfeature. The N3D technology provide focus
efficiency and reliability to the system. The
cues for nature viewing experience. Lot ofgoal is to provide highly reliable, compact,
3D display applications can using thisand low-cost systems to be introduced into
thehnology to improve its display quality.
the mass market for autonomous vehicles.

LDC-8-03  16:45
High Power Laser Phosphor Light
Source Using Tilted Rotating Mirror
Kenneth Li‌1,‌ Y. P. Chang‌2‌, Lion Wang‌2,‌
Andy Chen‌2‌, Stark Tsai‌2‌‌1‌‌
Optonomous Technologies Inc., ‌2Taiwan
Color
Optics, Inc.
This paper describes a stationary phosphor
plate system excited by a scanning laser
focused spot on the phosphor increasing theexcitation area, while keeping the same
etendue. Such scanning is created by using
a tilted rotating mirror reflecting the input
laser beam towards the phosphor plate andreflecting the output beam towards the
direction of the input laser beam maintaining
the small etendue of a single focus spot.

OPIC 2021・19-22 April, 2021

C on f e r e n c e P r o g r a m

LDC
Thursday, 22 April

Chairs: Young-Joo Kim
		 Yonsei University
		 Satoshi Ouchi
		 Hitachi, Ltd.

LDC-10-02  15:00
Colorization of Arc3D using Projector
Lighting

Ikuya Saji‌1‌, Masafumi Nakata‌2‌,
Yasuhiro Kashihara‌2,‌ Atsushi Hayashi‌2‌,
Hirotsugu Yamamoto‌1,3‌‌1‌
Utsunomiya University, ‌2‌NSC Co., Ltd., ‌3‌JST,
LDC-9-01  13:00
Invited ACCEL
Geo-marine science using visible light This paper describes the colorization of
Arc3D, which is an autostereoscopic display
Hiroshi Yoshidaby use of arc-shaped scratches on a
JAMSTEC
transparent substrate. Directional scattering
Geo-marine science using visible light willon an arc changes the position of an bright
be presented.
spot depending on the viewing position.
Arc3D has been colorized and switched by
LDC-9-02  13:30
Invited use of a projector lighting.

Imperceptible Projected Marker Codes
with Application to Calibration-Free
Projection Mapping

Shingo Kagami
Tohoku University
This paper reviews our recent efforts on
Digital Micromirror Device (DMD)-based
approaches to embed imperceptible marker
codes into video projection. An application to
calibration-free projection mapping onto amoving surface is also described.

[LDC-Closing]  15:15-15:25
Closing Remarks
Chair: Sunao Kurimura
NIMS

Program[LDC-9]  13:00-14:30
Smart Systems

LDC-9-03  14:00
Scanning RGB Laser Beam Detection
for Smart Laser Display System
Takeshi Ebara‌1‌, Hiroshi Murata‌1,2‌,
Masato Ishino‌2‌, Junichi Kinoshita‌2‌,
Kazuhisa Yamamoto‌2‌‌1‌
Mie University, ‌2‌Institute of Laser Engineering,Osaka University
Interruption of scanning RGB laser beams
was detected by use of a high-speed
photodiode and high-speed oscilloscope tocheck a response time for controlling smart
laser display operation. Clear electrical pulse
train signals were obtained from thephotodiode. These results are useful for
safety control of smart laser display
systems.

LDC-9-04  14:15
Extraction Method of Typical Traffic
Lines of Pedestrians
Akinobu Watanabe
Hitachi, Ltd.
We developed the extraction method of
typical traffic lines of pedestrians captured
by TOF sensor, and grouping method ofsimilar pathways with the typical trafficlines.

[LDC-10]  14:45-15:15
Novel and Emerging Technologies
Chair: Hiroshi Murata
Mie University

LDC-10-01  14:45
Design an Extreme Ultraviolet
Illumination System with High
Uniformity
Yanqiu Li, Qian Hao, Ke Liu, Xu Yan
Beijing Institute of Technology
In this paper, an extreme ultraviolet
illumination system matching an NA 0.33
projection objective is designed. Simulation
results show that this illumination system
can achieve high uniformity on the mask
plane under different illumination modes.

OPIC 2021・19-22 April, 2021

53