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Sony Develops efficient laser light module for projectors

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March 28, 2010

Sony's laser projector module promises higher efficiency and a better picture quality for ...

Sony's laser projector module promises higher efficiency and a better picture quality for a wide range of projectors.

Sony has announced the development of a highly efficient RGB laser light source module that, thanks to its high scalability, is suitable for use with projectors of all sizes and promises outstanding performance as well as power efficiency. The module incorporates high-power lasers with a combined output power of 21W in a single, small package.

The module uses semiconductor diodes for the red and blue lasers, and a compact, high power solid-state SHG laser for the green. The technology for both the red and green lasers was developed by Sony and allows for an overall 110W energy consumption at 5,000 lumens (or 21W), for a very respectable 18% energy conversion ratio — which is very high for power visible lasers.

One of the great features of the device is its scalability, as multiple modules can be stacked and used for 10,000 lumen large screen projectors and even digital cinema projectors, while obtaining noticeably higher brightness, better contrast and a wider color gamut compared with traditional xenon lamps.

Higher energy efficiency means the cooling mechanisms could be simplified to allow for a smaller size (152mm x 114mm x 30.5mm) and, with an average lifespan of 10,000 hours, the laser module is between 3 and 20 times more durable than traditional xenon lamps, cutting maintenance costs considerably.

About the Author
Dario Borghino Dario studied software engineering at the Polytechnic University of Turin. When he isn't writing for Gizmag he is usually traveling the world on a whim, working on an AI-guided automated trading system, or chasing his dream to become the next European thumbwrestling champion.   All articles by Dario Borghino
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3 Comments

What it also needs is an easy CMS (color management system) for calibration to ensure life-like colors and conform to industry Hi-Def color standards.

I'm **really** getting tired of watching televisions that can't be calibrated accurately so skin doesn't look like overdone suntans, and golf courses with fluorescent green grass!

matthew.rings
28th March, 2010 @ 06:54 pm PDT

If they get this down right, with it's scalability, you could see this type projector in everything from cell phones, to computers, to home theater big screens, to drive-ins, and maybe even cloud-projection where a powerful laser system projects city-size messages to the underneath side of clouds for announcing new premiers (remember the large searchlights at night for circuses or other big events?) It would be much more efficient to contact super heroes! How about threat warnings or "vote for me" signs? (Same thing, come to think of it!)

Will, the tink
30th March, 2010 @ 09:52 pm PDT

A company call Microvision has already developed a laser pico projector that can be designed to fit in a cellphone. Though companies like Sony and Texas instruments appear to be trying, everyone appears to be way behind on this technology. Now I'm not saying their tech has the power Sony's device can produce, but theoretically you could upscale by arranging their units into banks. Note: the ShowWS is a full projector unit with built-in battery and systems, the actual lasers and scanning mirrors are tiny.

PicoP tech: http://www.microvision.com/technology/picop.html

Main site: http://www.microvision.com/

Peter Cummuskey
6th July, 2010 @ 10:48 pm PDT
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