{"id":361459,"date":"2022-03-16T09:45:00","date_gmt":"2022-03-16T08:45:00","guid":{"rendered":"https:\/\/innovationorigins.com\/?post_type=selected&p=361459"},"modified":"2022-03-16T09:45:00","modified_gmt":"2022-03-16T08:45:00","slug":"stackable-holobricks-to-display-large-3d-images","status":"publish","type":"selected","link":"https:\/\/ioplus.nl\/archive\/en\/selected\/stackable-holobricks-to-display-large-3d-images\/","title":{"rendered":"Stackable ‘holobricks’ to display large 3D images"},"content":{"rendered":"\n

Researchers have developed a new method to display highly realistic holographic images using \u2018holobricks\u2019 that can be stacked together to generate large-scale holograms, writes the University of Cambridge in a press release<\/a>.<\/p>\n\n\n\n

The researchers, from the University of Cambridge and Disney Research, developed a holobrick proof-of-concept, which can tile holograms together to form a large seamless 3D image. This is the first time this technology has been demonstrated and opens the door for scalable holographic 3D displays. The results are reported in the journal Light: Science & Applications.<\/p>\n\n\n\n

High-quality visual experience <\/h3>\n\n\n\n

As technology develops, people want high-quality visual experiences, from 2D high-resolution TV to 3D holographic augmented or virtual reality, and large true 3D displays. These displays need to support a significant amount of data flow: for a 2D full HD display, the information data rate is about three gigabits per second (Gb\/s), but a 3D display of the same resolution would require a rate of three terabits per second, which is not yet available.<\/p>\n\n\n\n

Holographic displays can reconstruct high-quality images for a real 3D visual perception. They are considered the ultimate display technology to connect the real and virtual worlds for immersive experiences.<\/p>\n\n\n\n

\u201cDelivering an adequate 3D experience using the current technology is a huge challenge,\u201d said Professor Daping Chu from Cambridge\u2019s Department of Engineering, who led the research. \u201cOver the past ten years, we\u2019ve been working with our industrial partners to develop holographic displays which allow the simultaneous realisation of large size and large field-of-view, which needs to be matched with a hologram with a large optical information content.\u201d<\/p>\n\n\n\n

Joining pieces of 3D images <\/h3>\n\n\n\n

However, the information content of current holograms information is much greater than the display capabilities of current light engines, known as spatial light modulators, due to their limited space bandwidth product.<\/p>\n\n\n\n

For 2D displays, it\u2019s standard practice to tile small size displays together to form one large display. The approach being explored here is similar, but for 3D displays, which has not been done before. \u201cJoining pieces of 3D images together is not trivial, because the final image must be seen as seamless from all angles and all depths,\u201d said Chu, who is also Director of the Centre for Advanced Photonics and Electronics (CAPE). \u201cDirectly tiling 3D images in real space is just not possible.\u201d<\/p>\n\n\n\n

To address this challenge, the researchers developed the holobrick unit, based on coarse integrated holographic displays for angularly tiled 3D images, a concept developed at CAPE with Disney Research about seven years ago.<\/p>\n\n\n\n

Holographic 3D wall on sight <\/h3>\n\n\n\n

Each of the holobricks uses a high-information bandwidth spatial light modulator for information delivery in conjunction with coarse integrated optics, to form the angularly tiled 3D holograms with large viewing areas and fields of view.<\/p>\n\n\n\n

Careful optical design makes sure the holographic fringe pattern fills the entire face of the holobrick, so that multiple holobricks can be seamlessly stacked to form a scalable spatially tiled holographic image 3D display, capable of both wide field-of-view angle and large size.<\/p>\n\n\n\n

The proof-of-concept developed by the researchers is made of two seamlessly tiled holobricks. Each full-colour brick is 1024\u00d7768 pixels, with a 40\u00b0 field of view and 24 frames per second, to display tiled holograms for full 3D images.<\/p>\n\n\n\n

\u201cThere are still many challenges ahead to make ultra-large 3D displays with wide viewing angles, such as a holographic 3D wall,\u201d said Chu. \u201cWe hope that this work can provide a promising way to tackle this issue based on the currently limited display capability of spatial light modulators.\u201d<\/p>\n\n\n\n

Also interesting: <\/strong><\/em>Megaverse trains cybersecurity-awareness via adaptive and interactive 3D games<\/a><\/p>\n","protected":false},"author":2084,"featured_media":361461,"template":"","meta":{"_acf_changed":false,"advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":""},"categories":[8553],"tags":[9646,52258,44294,21611,46284],"location":[55977],"internal_archives":[],"class_list":["post-361459","selected","type-selected","status-publish","has-post-thumbnail","hentry","category-digital","tag-3d-en","tag-disney","tag-holographic-displays","tag-light","tag-university-of-cambridge","location-united-kingdom"],"blocksy_meta":[],"acf":[],"featured_img":false,"coauthors":[],"author_meta":{"author_link":"https:\/\/ioplus.nl\/archive\/author\/mauro-mereu\/","display_name":"Mauro Mereu"},"relative_dates":{"created":"Posted 4 years ago","modified":"Updated 4 years ago"},"absolute_dates":{"created":"Posted on March 16, 2022","modified":"Updated on March 16, 2022"},"absolute_dates_time":{"created":"Posted on March 16, 2022 9:45 am","modified":"Updated on March 16, 2022 9:45 am"},"featured_img_caption":"","tax_additional":{"category":{"linked":["Digital<\/a>"],"unlinked":["Digital<\/span>"],"slug":"category","name":"Categories"},"post_tag":{"linked":["3D<\/a>","Disney<\/a>","holographic displays<\/a>","light<\/a>","University of Cambridge<\/a>"],"unlinked":["3D<\/span>","Disney<\/span>","holographic displays<\/span>","light<\/span>","University of Cambridge<\/span>"],"slug":"post_tag","name":"Tags"},"language":{"linked":["EN<\/a>"],"unlinked":["EN<\/span>"],"slug":"language","name":"Tags"},"post_translations":{"linked":[],"unlinked":[],"slug":"post_translations","name":""},"location":{"linked":["United Kingdom<\/a>"],"unlinked":["United Kingdom<\/span>"],"slug":"location","name":"Locations"},"internal_archives":{"linked":[],"unlinked":[],"slug":"internal_archives","name":"Internal Archives"}},"series_order":"","_links":{"self":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected\/361459","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/selected"}],"about":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/types\/selected"}],"author":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/users\/2084"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/"}],"wp:attachment":[{"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/media?parent=361459"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/categories?post=361459"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/tags?post=361459"},{"taxonomy":"location","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/location?post=361459"},{"taxonomy":"internal_archives","embeddable":true,"href":"https:\/\/ioplus.nl\/archive\/wp-json\/wp\/v2\/internal_archives?post=361459"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}