OBJECTIVE
Holographic Reality (HR) is based on “holographic” 3D screens that do not require any eyewear to function. These screens must produce realistic, full-parallax 3D imagery that can be manipulated in mid-air by finger or hand gestures. They must provide the same high quality imagery throughout the field of view, no jumps, bad-spots or other visual artefact. Augmented by Haptic technology (tactile feedback), these screens will even let us “feel” the holographic content physically at our fingertips.
METHOD
LEIA 3D displays are based on traditional LCD technology, augmented with a special “multiview” backlight that lets it project up to 64 images in different directions of space, creating a full-parallax 3D impression to any number of viewers in a 60 deg field of view. The backlight creates a well controlled light field underneath the LCD layer, which allows full control over the angular distribution of light in each individual view. As a result the view transitions are smooth and the visual quality of the 3D image is very close to that of a true hologram.
The LEIA 3D displays are also equipped with a capacitive “hover-touch”
panel which senses the user’s fingers at a few centimeter distance from the screen surface. The user can then interact with the holographic content in mid-air.
RESULTS
LEIA has designed and is manufacturing a holographic Developer’s Kit featuring a 2.2’’ display with the following characteristics:
- 64 views (8x8) spanning a field of view of 60 deg
- 8bit monochrome at 60Hz or 24bit RGB at 40Hz
- Hover-touch with working distance of 2cm
- gyro - accelerometer input
In the talk I will describe the basic physics and present some angular data measurements showing how the FOV and the inter-view transitions can be controlled by changing the diffractive backlight parameters.
I will also present our WebGL and Unity 3D SDK allowing easy content conversion / creation for the LEIA 3D platform. A demo session will follow where attendees will get a hands on experience of the tech and will be able to play holographic games.
讲演者简介
彭臻于2014年初在美国加州硅谷创立了LEIA Inc.，并出任公司总裁、首席技术长。 在此之前，彭臻于2008年加入位于美国加州硅谷的惠普公司实验室任职资深科学家(Principal Scientist)，从事与光电子相关的芯片级集成技术研究及其在信息传输、大型高端计算中的应用。在此期间开发了LEIA的这一基于多视角纳米背光的裸眼3D全息显示技术。他在美国南加州大学(University of Southern California)取得电子工程博士学位。在北京清华大学取得电子工程学士学位。
David Fattal is the founder and CEO of LEIA Inc, a Silicon Valley startup developing an interactive holographic display for mobile devices. He previously spent 9 years as a senior researcher in the Intelligent Infrastructure Laboratory at HP Labs, working on various aspects of quantum computing and photonics, and specializing in the manipulation of light at the nanoscale. He holds a PhD in Physics from Stanford University and a BS in theoretical physics from Ecole Polytechnique, France. David received the 2010 Pierre Faurre award for young French industrial career achievement, and was named French Innovator of the year 2013 by the MIT technology Review before featuring on the global innovator list that same year. David has 70 granted patents and co-authored the text-book "Single Photon Devices and Applications". He was recently awarded the French National Order of Merit for inventing the "Multiview Backlight" concept.
