New techniques magnify images without requiring bulky zoom lenses
Imagine giving a presentation to a roomful of important customers when suddenly the projector fails. You whip out your smartphone, beam your PowerPoint presentation onto the conference room screen, and are back in business within seconds. This career-saving application and others like it are the promise of a new generation of ultra-small projectors. Now researchers from Japan and Poland have taken an important step toward making such devices more versatile and easier to integrate into portable electronic devices.
The team has created a small holographic projection system with a lensless zoom function. When fully developed the system should be cheaper and smaller than other projection systems. The researchers report their findings in a paper published today in the Optical Society’s (OSA) journal Optics Express.
Zoom functions magnify an image to fit on an arbitrarily sized screen, but they typically require complicated lenses and mechanical components. “A zoom lens in general projectors occupies a large area in the systems,” said Tomoyoshi Shimobaba, a professor in the graduate school of engineering at Chiba University in Japan. “If I remove the zoom lens, the system will be small and cost-saving.”
Though the new holographic lensless zoom is not the first lensless zoom system to be developed, Shimobaba notes that other systems require extra components. His team’s system requires only a laser and an LCD panel.
In order to achieve a lensless zoom, Shimobaba, his colleagues from Chiba University, and Michal Makowski from the Warsaw University of Technology in Poland turned to holography. Holography is a way to produce images by using the interference pattern of two laser beams to encode and later display the image. By their nature holograms operate without lenses. It is possible to represent a holographic image with numbers and formulas and then calculate how that image can be magnified.
Go deeper with Bing News on:
Zoomable Holograms
- WiMi Hologram Cloud Inc (WIMI)
BEIJING, March. 11, 2024 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR ...
- MicroCloud Hologram Inc HOLO
We sell different types of products and services to both investment professionals and individual investors. These products and services are usually sold through license agreements or subscriptions ...
- Celebrity-Backed Proto Puts Holograms in a Four Seasons Hotel
At the very least, guests will remember the hotel where they talked to a hologram. Guests at a Four Seasons hotel in Beverly Hills can now access in-room concierge via hologram. The Beverly ...
- Coachella fans crowded together to watch a hologram sing. It never showed up.
Since then Miku has toured around the world, “performing” in concert as a hologram to thousands of adoring fans. But on Friday, their beloved hologram was no hologram at all. Hatsune Miku had ...
- Lana Del Rey’s Coachella Hologram Has Hatsune Miku Fans Upset The Virtual Performer Didn’t Get One
Coachella has once again become the site of hologram-related controversy. However, this time, rather than the unexpected (and borderline creepy) likeness of a deceased performer, the scandal is ...
Go deeper with Google Headlines on:
Zoomable Holograms
[google_news title=”” keyword=”Zoomable Holograms” num_posts=”5″ blurb_length=”0″ show_thumb=”left”]
Go deeper with Bing News on:
Holograms
- 5 Futuristic Smartphone Features That Would Be Gamechangers
In its ideal form, this notion could let us perform all kinds of tasks with only the most minute of gestures. With a snap of your fingers, you could record a video on your phone's camera, then fire it ...
- Eiza Gonzlez's New Movie Role Confirms The Next Genre She Needs To Tackle
Eiza Gonzlez stars in The Ministry of Ungentlemanly Warfare, and one of her scenes in the film proves what kind of movie she should do next.
- UAE landmarks could soon be turned into holograms
Photonics is the study of light and has several applications including LED, VR, holograms, high-speed internet and solar panels among other things ...
- Virtual reality could make seeing your favorite band less expensive, if these artists have their way
Heavy-metal band Avenged Sevenfold and rapper T-Pain are among a growing number of artists who are using virtual reality to connect with their fans at a ...
- An Evening With Author Erik Larson and More Programs in May
Best-selling author Erik Larson, known for The Devil in the White City (2003) and Dead Wake: The Crossing of the Lusitania (2015) among others, will discuss his latest book at an ...
Go deeper with Google Headlines on:
Holograms
[google_news title=”” keyword=”holograms” num_posts=”5″ blurb_length=”0″ show_thumb=”left”]