Sony Pixel Power calrec Sony

Researchers combine...

02/10/2018

Credit: Boaz Jessie Jackin | See bottom of article for caption

VR and AR has promising applications across a range of markets and usage is growing, but there are still some limitations with the technologies. To tackle motion sickness and other visual disturbances without increasing size, weight and cost of AR/VR devices, a team of researchers have turned to holography and light field technologies.

Holography and light field technology have been used with this goal in mind before, but it's always required additional optics that create bulky, heavy and expensive products, which have struggled to be commercially successful.

Hoping for better chances of success, a group of researchers in Japan and Belgium decided to take a different approach.

Objects we see around us scatter light in different directions at different intensities in a way defined by the object's characteristic features including size, thickness, distance, colour, texture, said researcher Boaz Jessie Jackin of the National Institute of Information and Communication Technology in Japan. The modulated [scattered] light is then received by the human eye and its characteristic features are reconstructed within the human brain.

Devices capable of generating the same modulated light without the physical object present are known as true 3-D displays, which includes holography and light-field displays. Faithfully reproducing all of the object's features, the so-called modulation,' is very expensive, said Jackin. The required modulation is first numerically computed and then converted into light signals by a liquid crystal device (LCD). These light signals are then picked up by other optical components like lenses, mirrors, beam combiners and so on.

The additional optical components, which are usually made of glass, play an important role because they determine the final performance and size of the display device.

This is where holographic optical elements can make a big difference. A holographic optical element is a thin sheet of photosensitive material think photographic film that can replicate the functions of one or more additional optical components, said Jackin. They aren't bulky or heavy, and can be adapted into smaller form factors. Fabricating them emerged as a new challenge for us here, but we've developed a solution.

Recording, or fabricating, a hologram that can replicate the function of a glass-made optical component requires that particular optical component to be physically present during the recording process. This recording is an analogue process that relies on lasers and recording film; no digital signals or information are used.

Recording multiple optical components requires that all of them be present in the recording process, which makes it complex and, in most cases, impossible to do, said Jackin.

The group decided to print/record the hologram digitally, calling the solution a digitally designed holographic optical element (DDHOE). They use a holographic recording process that requires none of the optical components to be physically present during the recording, yet all the optical components' functions can be recorded.

The idea is to digitally compute the hologram of all the optical functions [to be recorded and] reconstruct them together optically using a LCD and laser, said Jackin. This reconstructed optical signal resembles the light that is otherwise modulated by all of those optical components together. The reconstructed light is then used to record the final holographic optical element. Since the reconstructed light had all optical functions, the recorded hologram on the photosensitive film will be able to modulate a light with all of those functions. So all of the additional optics needed can be replaced by a single holographic film.

In terms of applications, the researchers have already put DDHOE to the test on a head-up light field 3D display. The system is see-through, so it's suitable for augmented reality applications.

Our system uses a commercially available 2D projector to display a set of multi-view images onto a micro-lens array sheet which is usually glass or plastic, said Jackin. The sheet receives the light from the projector and modulates it to reconstruct the 3D images in space, so a viewer looking through the micro-lens array perceives the image in 3D.

One big difficulty their approach overcomes is that light from a 2D projector diverges and must be made collimated into a parallel beam before it hits the micro-lens array in order to accurately reconstruct the 3D images in space.

As displays get larger, the collimating lens should also increase in size. This leads to a bulky and heavy lens, the system consuming long optical path length and also the fabrication of the collimating lens gets costly, said Jackin. It's the main bottleneck preventing such a system from achieving any commercial success.

Jackin and colleagues' approach completely avoids the requirement of collimation optics by incorporating its function on the lens array itself. The micro-lens array is a fabricated DDHOE, which includes the collimating functions.

The researchers went on to create a head-up, see-through 3-D display, which could soon offer an alternative to the current models that use the bulky collimation optics.

Researchers will present the work during The Optical Society's (OSA) Frontiers in Optics meeting, September, 16 to 20 in Washington, D.C.

Source: The Optical Society

Full research paper

Figure: a) A fabricated DDHOE lens array; b) The 3D display system consisting of a 2D projector and DDHOE; c) A computer-modelled 3D scene of depth 6cm; d) A 3D reconstruction of a modelled scene captured by camera looking into the DDHOE
LINK: http://www.inavateonthenet.net/news/article/researchers-combine-hologr...
See more stories from teracue

Most recent headlines

05/01/2027

Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be demoed at CES 2026

Worlds first 802.15.4ab-UWB chip verified by Calterah and Rohde & Schwarz to be ...

07/10/2026

Dalet Flex LTS Delivers Smarter Media Operations from Ingest to Distribution

Dalet, a leading technology and service provider for media-rich organizations, today announced the latest Long-Term Supported (LTS) release of Dalet Flex. Build...

06/09/2026

Dolby and MagentaTV Bring Fans Closer to the FIFA World Cup 2026 in Germany with Dolby Vision and Dolby Atmos

June 9 2026, 23:00 (PDT) Dolby and MagentaTV Bring Fans Closer to the FIFA Worl...

20/08/2026

Broadpeak launches Multiview as a Service to accelerate m...

Multiview available via SaaS for streaming platforms and operators through broadpeak.io, with live demonstrations at IBC2026 Broadpeak , a leader in streaming ...

20/08/2026

Techex Appoints Stuart Almond as Chief Revenue Officer

Techex, a leading provider of live broadcast infrastructure solutions, has appointed Stuart Almond as Chief Revenue Officer, further strengthening its executive...

20/08/2026

MediaCity Studios upgrades with Avid

Avid today announced that MediaCity Studios has upgraded its production infrastructure with an enhanced end-to-end Avid production ecosystem, including the dep...

20/08/2026

MS Now to Launch $7.99 DTC Service

Share Copy link Facebook X Linkedin Bluesky Email...

20/08/2026

Nielsen Details Improvements to Audience Measurement Capabilities

Share Copy link Facebook X Linkedin Bluesky Email...

20/08/2026

Study: 174 Billion Illegal Streams During FIFA World Cup 2026

Share Copy link Facebook X Linkedin Bluesky Email...

20/08/2026

Prasad Opens New 8K/4K Film Preservation & Restoration Center

Share Copy link Facebook X Linkedin Bluesky Email...

20/08/2026

IPC Expands Brazilian Presence with New Channel Partner C...

IPC Expands Brazilian Presence with New Channel Partner CCATech Industry veterans Carlos Abrah o and Bruno Lopes strengthen local support and expand IPCs prese...

20/08/2026

Zixi Enters Mauritius Market Through Strategic Deployment...

Zixi Enters Mauritius Market Through Strategic Deployment with MTC Jockey Club Worlds Oldest Horse Racing Club in the Southern Hemisphere Selects Zixis Softwar...

20/08/2026

Scripps Research scientist to receive $2.76 million NIAID New Innovators Award

LA JOLLA, CA-Scripps Research assistant professor Tiantian Liu has received a five-year NIAID DP2 award from the National Institute of Allergy and Infectious Di...

20/08/2026

Audiences reveal appetite for multicultural Australia on-screen

Audiences reveal appetite for multicultural Australia on-screen 20 August 2026 Dr Georgie McClean, Dr Rebecca Huntley (L-R) By Dr Georgie McClean and Dr Rebec...

20/08/2026

How Mavis Studio Is Expanding Live Production Teaching at Sussex

How Mavis Studio Is Expanding Live Production Teaching at Sussex Brie Clayton August 19, 2026 0 Comments Hero image displays a student about to mix be...

20/08/2026

Vertical Unscripted Series Legal Queens Captured with Blackmagic Design

Vertical Unscripted Series Legal Queens Captured with Blackmagic Design Brie Clayton August 19, 2026 0 Comments Reality TV veteran Eric Gardner create...

20/08/2026

Bring the Fire: Play Games on GeForce NOW With New Firefox Browser Support

It's a new way into the cloud. GeForce NOW welcomes Firefox support to the cloud, opening up another way to jump into high-performance PC gaming straight ...

19/08/2026

Imagine Communications Steve Reynolds on Kaseya Centers Hybrid IP Build and the Growth of ST 2110

As the cost of IP nears price parity with traditional SDI, Reynolds argues that ...

19/08/2026

European Athletics Championships 2026: BBC, Event Organizers Bring Birmingham Action to Viewers in Style

A private 5G bubble was chosen instead of traditional broadcast RF for the race ...

19/08/2026

Filipiana Sets the Class Divide on a Golf Course in the Philippines

(L-R) Rafael Manuel and Isabel Sicat attend the Filipi ana premiere during the 2026 Sundance Film Festival at The Ray Theatre on January 23, 2026, in Park Cit...

19/08/2026

MPG launch Save Our Studios survey

Studio owners invited to have their say on rates cuts The Music Producers Guild (MPG) are inviting UK-based studios to take part in an in-depth survey that ...

19/08/2026

Harrison unveil the Flex-10

Vintage-inspired desktop interface revealed Harrison's latest hardware offering sees them head into the world of audio interfaces, delivering a 10-in/12...

19/08/2026

Minimal Audio release Lucid

Granular effect remains locked to scale and tempo Described as your dream granular effect , Minimal Audio's latest creation is capable of turning any s...

19/08/2026

Audio Modeling open PolySWAM pre-orders

First polyphonic SWAM instrument incoming Audio Modeling's latest physical-modelling orchestral instrument is just around the corner, and is now availab...

19/08/2026

FOX and NBCUniversal Score with FIFA World Cup 2026 Success in Nielsen's June Gauge Reports

World Cup Games Generate 84 Billion Minutes Across FOX, Fox Sports 1 and NBCU...

19/08/2026

The Gauge: Poland | July 2026

July brought typical peak-holiday drops in viewership, driven primarily by viewers stepping away from screens and a visible decline in reach across both traditi...

19/08/2026

Carr Calls ABC Suit 'Meritless

Share Copy link Facebook X Linkedin Bluesky Email...

19/08/2026

Henry Alexander Joins BCE as Sales Director

Henry joins BCE as the company accelerates its commercial strategy and expands its international presence across the media, broadcast and technology markets. He...

19/08/2026

iWedia Announces Advanced Android DRAM Optimisation Proce...

iWedia, a leading provider of software solutions for connected TV devices, today announced a major milestone in Android platform optimization with the successfu...

19/08/2026

NTP Technology announces ST 2110-30-RAVENNA 128-channel A...

NTP Technology announces that ST 2110-30 audio-over-IP connectivity with AES67 and RAVENNA capabilities is now available for the brand's world-class audio i...

19/08/2026

ORF goes full IP with Net Insight in nationwide network o...

Net Insight has been selected to provide its Nimbra platform by the service provider Big Blue Marble, formerly ORS Group, as the core media transport solution f...

19/08/2026

Coventry City Trophy Parade Extends LiveU LIQ Beyond the...

LiveU has supported Coventry City FC and several other top-flight UK football clubs through one of their most demanding live production challenges of the year, ...

19/08/2026

Nature Seekers Documentary Shot with Blackmagic URSA Cine 12K LF

Nature Seekers Documentary Shot with Blackmagic URSA Cine 12K LF Brie Clayton August 18, 2026 0 Comments Filming endangered turtles required camera...

19/08/2026

Neyrinck Brings D-Control Consoles Back to Life on Apple Silicon with D-Control Basic

Neyrinck Brings D-Control Consoles Back to Life on Apple Silicon with D-Control ...

19/08/2026

ABC Files First Amendment Lawsuit Against FCC

Share Copy link Facebook X Linkedin Bluesky Email...

19/08/2026

Nielsen: Fox and NBCUniversal Score with FIFA World Cup 2026

Share Copy link Facebook X Linkedin Bluesky Email...

19/08/2026

ESPN Co-Founder Bill Rasmussen Dies At 93

Share Copy link Facebook X Linkedin Bluesky Email...

19/08/2026

Study: NBA Ad Revenue Hit $2.1 Billion Last Season

Share Copy link Facebook X Linkedin Bluesky Email...

19/08/2026

Nexstar's WNCN Donates ENG Van for Training

Share Copy link Facebook X Linkedin Bluesky Email...

19/08/2026

Riedel Brings Professional Live Production Into the Class...

Riedel Communications today announced that Edith Cowan University (ECU) in Perth, Australia, implemented a comprehensive communications infrastructure that brin...

19/08/2026

QuickLink Showcases New 4K Capabilities Across StudioEdge...

QuickLink, a leading provider of award-winning video production and remote guest contribution solutions, will spotlight a major leap forward in remote guest con...

19/08/2026

EMAM together with PlayBox Neo and SNEWS launch combined...

Integrated platform melds media asset management, playout automation and newsroom workflows EMAM, PlayBox Neo and SNEWS have officially launched Nuvex, a conne...

19/08/2026

Screen Australia releases the Private Investment Toolkit to strengthen screen industry financing pathways

Screen Australia releases the Private Investment Toolkit to strengthen screen in...

19/08/2026

Do Aussies truly value local content? Unpacking Screen Currency 2026 with Deirdre Brennan

Do Aussies truly value local content? Unpacking Screen Currency 2026 with Deirdr...

19/08/2026

U&alibi re-commissions Bookish for Christmas Special and Series 3

There's an early Christmas gift for Bookish fans, as UKTV confirms the re-commission of the hit U&alibi drama, created by and starring Mark Gatiss. Viewers ...

19/08/2026

Sky gives sports fans the chance to watch multiple live sports events simultaneously on the big screen for the first time

Wednesday 19 August 2026 Sky gives sports fans the chance to watch multiple liv...

19/08/2026

RT TO AIR HISTORIC KATIE TAYLOR FIGHT IN CROKE PARK

On Saturday September 5 Katie Taylor will step into the ring for the fight of her life against Flora Pili in front of 80,000 fans in Croke Park. A legendary fig...

18/08/2026

SportStream 2026 Virtual Event Set for September 15-17

SportStream 2026, a free three-day virtual event, will take place September 15-17. One registration provides access to all three days of live programming and on...

18/08/2026

IBC 2026: BeckTV to Debut BeckFlow Documentation Platform

BeckTV will introduce BeckFlow to the European market at IBC2026, demonstrated on the Providius stand (10.F53). BeckFlow is a web-based schematic documentation...