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Tag: laser

  • HDI 100-inch Laser-Based 3D HDTV Reached the Manufacturing Stage

    HDI‘s September announcement of their potential new standard for switchable 2D/3D television technology came on the same day several major manufactures announced plans to release new plasma televisions with 3D capabilities via shutter glasses.

    HDI was the first to announce it has entered into a manufacturing agreement to mass produce 100-inch Laser-Driven 2D/3D Switchable Dynamic Video Projection Televisions.

    HDI’s 2D/3D switchable system delivers 2D image with a 50% greater resolution than today’s digital cinemas, and derives its “greater-than-high” definition stereoscopic 1920 x 1080p "3D" image quality from two RGB laser-illuminated Liquid Crystal on Silcon (LCOS) micro display imagers.

    At full 1080p HD, the HDI screen refreshes at 360 fields per-second on each eye, the fastest refresh rate on any mass produced television or projector, as the company claims.

    HDI says they have completely eliminated the adverse effects, such as migraines, dizziness, nausea, and motion sickness, long associated with inferior and expensive shutter glasses and substandard 3D technology.

    HDI says their displays draw 80% less power than existing 2D plasma displays of the same size, offer a 95% reduction in manufacturing pollution, and a 100% reduction in harmful chemicals and radioactive components currently used in existing televisions.

    At 10-inches thick, HDI’s 100-inch diagonal display weighs 75% less than equivalent Plasma and LCD displays, and is anticipated to have a street price potentially 60% less than current 2D flatscreen Plasma and LCD displays.

    According to HDI co-founder Ingemar Jansson, "The first production-run of 100-inch HDI Ltd. 2D/3D switchable displays should quickly put product into a multitude of B2B and public demonstration venues."

    He’s mum as to when leading American retailers will be able to put units into homes, but stresses that the simplistic and inexpensive design and manufacturing techniques required to produce HDI Ltd. televisions, "will have product in the marketplace faster than one would expect," and adds, "either with the HDI logo or that of another leading manufacturer."

    Offering a thought on the fact that California appears poised to be the first state to ban power-guzzling big-screen TVs, Jansson states, "In light of the energy efficient products emerging from companies such as Apple, the lobbying efforts of the Consumer Electronics Association strikes me as almost criminal in promoting antiquated technologies that the ‘Grid,’ and the planet, simply cannot sustain."

  • Sanyo Laser Could Double Blu-ray Discs' Capacity


    Sanyo has announced that it has developed a blue-violet semiconductor laser capable of outputting 450mW.

    The company said this allows it to read and write data on discs with up to four data layers at speeds of 12X.

    At present, Blu-ray discs store 25GB of data on each of its two layers. Sanyo’s four-layer disc would hold 100GB of data or about eight hours of HD video.

    Sanyo claims that a device equipped with the laser would be able to burn an entire two-hour program to disc in as little as ten minutes.

    The only thing you’ll have to wait for is the new laser coming to market – Sanyo said it’s unlikely to be available for at least another two years.

  • Plastics breakthrough could help cut cost of Blu-ray players

    Scientists have moved a step closer to producing electrically-powered plastic laser diodes that could be used in Blu-ray players.
    Currently the laser diodes in such consumer optical storage devices are made out of inorganic semiconductors like gallium arsenide, gallium nitride and other semiconductor alloys related to them.
    Now, researchers at Imperial College in London have demonstrated a class of plastic semiconductor materials that may allow the low-cost manufacture of electrically-powered plastic laser diodes.
    As well as reducing the cost of devices such as Blu-ray players the development could allow plastic laser diodes to operate across a much more substantial wavelength range.
    Professor Donal Bradley, lead author of the new study and head of Imperial’s Department of Physics said the development was “a real breakthrough”.
    “In the past, designing polymers for electronic and optoelectronic devices often involved maximising one key property in a material at a time,” he said.
    “When people tried to develop plastic semiconductors for laser diode use, they found that optimising the material’s charge transporting properties had a detrimental effect on its ability to efficiently emit light, and vice versa.”
    The study’s co-author, Dr Paul Stavrinou, added: “The modifications made to the PFO structure have allowed us to convincingly overcome this perceived incompatibility and they suggest that plastic laser diodes might now be a realistic possibility.”
    One of the main stumbling blocks to using plastic semiconductor laser diodes is that, until now, no plastics had been found that could sustain a large enough current whilst also supporting the efficient light emission needed to produce a laser beam.
    Now the Imperial physicists have done just that. The plastics studied, synthesised by the Sumitomo Chemical Company in Japan, are closely related to PFO, an archetype blue-light emitting material.
    By making subtle changes in the plastic’s chemical structure the researchers produced a material that transports charges 200 times better than before, without compromising its ability to efficiently emit light – indeed the generation of laser light was actually improved.
    The research team argues that the future laser diodes made out of the material they have developed may generate light emissions covering the spectrum all the way from near ultraviolet to near infrared.