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2. Optical mouse - Wikipedia

   en.wikipedia.org/wiki/Optical_mouse

   The blue-LED-based V-Mouse VM-101. Optical mice often used light-emitting diodes (LEDs) for illumination when first popularized. The color of the optical mouse's LEDs can vary, but red is most common, as red diodes are inexpensive and silicon photodetectors are very sensitive to red light. IR LEDs are also widely used. [16]

3. Light-emitting diode - Wikipedia

   en.wikipedia.org/wiki/Light-emitting_diode

   Optical computer mice use LEDs as a light source for the miniature camera within the mouse. LEDs are useful for machine vision because they provide a compact, reliable source of light. LED lamps can be turned on and off to suit the needs of the vision system, and the shape of the beam produced can be tailored to match the system's requirements.

4. Shuji Nakamura - Wikipedia

   en.wikipedia.org/wiki/Shuji_Nakamura

   Shuji Nakamura (中村 修二, Nakamura Shūji, born May 22, 1954) is a Japanese-American electronic engineer and inventor of the blue LED, a major breakthrough in lighting technology. [5] Nakamura specializes in the field of semiconductor technology, and he is a professor of materials science at the College of Engineering of the University of ...

5. 55 Cool Tech Gadgets Our Gear Editors Loved Testing This Year

   www.aol.com/lifestyle/40-wildly-innovative-tech...

   10,000mAh Kickstand Wireless Power Bank with USB-C Cable. While most of the best power banks we tested this year featured a dead-simple design, we were impressed by just how straightforward this ...

6. Lenovo Erazer - Wikipedia

   en.wikipedia.org/wiki/Lenovo_Erazer

   It's all blue lights, bubbled black plastic and geometric lines. With a power button labeled Engine Start in blue LED, it's your call whether the X700 is more racecar than spacecraft. Either way it's a tad gaudy, but no sci-fi nightmare. There are some functional touches amongst the glowing glamor." [1]

7. Things Boomers Took for Granted That are Obsolete Now

   www.aol.com/things-boomers-took-granted-obsolete...

   Here Today, Gone Tomorrow. If your vision of the Big Apple still includes bright yellow taxi cabs, flashing lights, and a phone booth on every corner, it's time to recalibrate.