Laser Keyboard

Hello friends, my name is Arjun Gupta and today we see  about "LASER KEYBOARD".

Introduction-

Without using keyboard, it is quiet difficult to operate your computer or laptop. Most of us, use keyboard almost every day for composing e-mail, writing any document or search any website/blog. Similarly a new type of keyboard is invented(LASER KEYBOARD) for portability of users, thus in this session we learn to understand, how the laser keyboard works.

Working of Virtual/Physical keyboard-

Most common thing is that all keyboard whether it is virtual or physical, are input devices. Ones you hit any button in the keyboard, you are telling to deliver any command to the system to write any alphabet, number or symbol, the traditional keyboard is hooked up with a cable between your computer and keyboard, a processor is implemented in the computer to understand the electrical impulses, when we hit any key in the keyboard, it's circuit is closed and send the electric signal to the processor, after analysis it print the desire result we want, sending the information regarding your keystrokes to the computer is done by many ways, most user connect their keyboard with the cable and some of them us wireless technology like Bluetooth keyboard. Thus, this wireless technology used in the LASER KEYBOARD.

The laser key board project the image of the QWERTY keyboard on the non-reflective surface using the red laser, this laser is similarly to the laser that is use in the laser shows or concerts, the image of the keyboard is expand on the surface using lens.

But a simple image of keyboard can't help you to write, some sensor is used to analysis of your finger, a sensor is situated in the bottom side of the device, it is a infrared (IR) laser diode, which helps to shoot a thin layer of infrared light. The IR layer is parallel to the laser keyboard, just few millimeter above the laser keyboard, when you start typing, you pass your finger through certain area of the keyboard.

A CMOS (complimentary metal-oxide semiconductor) is situated just above the laser keyboard and a special sensor chip is used called Virtual Interface Processing Core analyses the location of your finger and send information to the computer receiving the command.

The laser keyboard comes under the future tech, it is small and sleek, weight is about 56 grams and comparable in size to a pack of gum, so it can be easily fit in your pocket.

Hope, this information helps you to initiate your knowledge in another topic "LASER KEYBOARD"
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