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Logitech Unveils Mice with Darkfield Laser Tracking Technology, which Work on Clear Glass and High-Gloss Surfaces


Hong Kong — Oct. 7, 2009 —Today, Logitech took the computer mouse where no mouse has gone before. With Logitech® Darkfield Laser Tracking™, users can use their mice virtually anywhere they want – including clear glass and high-gloss surfaces. This new technology is available in the Logitech® Performance Mouse MX™ (M950) and the Logitech® Anywhere Mouse MX™ (M905), giving users the option of a full-size mouse or a more compact, notebook mouse.
Logitech research showed that 40 percent of people have a glass surface in their home. This, coupled with the increase in the popularity of laptop computers, means that people are moving around and coming into contact with a multitude of surfaces – like granite and lacquered wood – that challenge the tracking capabilities of standard mice.
“Laptops have gained popularity in the last several years because of the freedom they afford – people today want to be able to connect to their digital world anytime, anywhere. However, until now, no mouse has been able to match that flexibility,” said Alberta Wong, Logitech’s Hong Kong Country Manager. “Thanks to Logitech Darkfield, whether you are checking the morning news from the granite counter top in your kitchen or at work manipulating a spreadsheet from your glass desk, you can be confident that your Logitech mouse will be up to the task.”

Breaking the Glass Barrier

A pioneer in the development of the computer mouse in the 1980s, Logitech has enthusiastically driven nearly every major innovation in mouse technology – persistently refining this ubiquitous interface between people and their digital experiences. From laser tracking to hyper-fast scrolling to the Plug-and-Forget Nano-receiver, Logitech has dedicated itself to creating ways to help users get more out of their computing experience. The latest in this line of innovations, Logitech Darkfield opens up new possibilities for when and where users can use their mice.
Regular laser tracking technology relies on the ability of the mouse’s sensor to detect the textural details of the surface. The more irregularities a surface exhibits, the easier it is for the sensor to identify reference points that it can use to accurately measure motion. However, because high-gloss surfaces such as glass are almost completely flat, there are not enough details for a typical laser mouse’s sensor to detect.
To track on glass (that is at least 4 mm thick), Logitech Darkfield uses dark field microscopy to detect microscopic particles and micro-scratches on these surfaces, rather than tracking the surface itself. Similar to the way in which our eye sees the clear night sky, the mouse’s sensor sees the clean areas of glass as a dark background with bright dots – the dust. Then, the sensor interprets the movement of these dots to track exactly where a user has moved the mouse.

Logitech Performance Mouse MX™ (M950), Logitech Anywhere Mouse MX™ (M905)

Because choice is important, this new technology is available on a full-size mouse as well as a more compact, notebook mouse. However, both mice are designed to put the user in control of the digital world. Both models feature hyper-fast scrolling, so a user can fly through long documents with ease, while click-to-click mode gives the user more precision when navigating lists, photos and slideshows.
With the full-size Logitech Performance Mouse MX™ (M950), a user has the power to get the job done. The sculpted, right-handed shape gives the user the comfort needed, while the flexible micro-USB charging system lets the user recharge the mouse through the computer or a wall outlet – even while using it. To make the user more productive, four customizable thumb buttons put the most important controls – like application switching and zooming – at fingertips. And, force-sensitive side-to-side scrolling (software enabled) – a first in any Logitech mouse – lets the user quickly navigate around Web pages.
Thanks to its compact size, the Logitech Anywhere Mouse MX™ (M905) works wherever a user does and a travel pouch helps protect the mouse while in-transit. The contoured shape fits naturally into most hands and back and forward buttons, placed within reach of the thumb, help the user surf the Web efficiently.
In addition to providing unsurpassed cursor control, both of the new Logitech mice feature the recently announced Logitech® Unifying receiver. The tiny wireless receiver stays in the notebook, so there is no need to unplug it when moving around. Plus, a user can easily add up to five other compatible Logitech keyboards and mice to the single receiver, including the recently announced Logitech® Keyboard K350, Logitech® Keyboard K340, Logitech® Marathon Mouse M705 and the Logitech® Wireless Mouse M505.

Pricing and Availability
Logitech Performance Mouse MX™ (M950) and Logitech Anywhere Mouse MX™ (M905) is expected be available in Hong Kong this month at a suggested retail price of HK$879 and HK$639 respectively.

About Logitech
Logitech is a world leader in personal peripherals, driving innovation in PC navigation, Internet communications, digital music, home-entertainment control, gaming and wireless devices. Founded in 1981, Logitech International is a Swiss public company listed on the SIX Swiss Exchange (LOGN) and on the Nasdaq Global Select Market (LOGI).

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Logitech, the Logitech logo, and other Logitech marks are registered in Switzerland and other countries. All other trademarks are the property of their respective owners. For more information about Logitech and its products, visit the Company’s Web site at

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