OPTICAL MOUSE

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OPTICAL MOUSE

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What is an optical mouse ?

A computer mouse is an input device and a hand-held pointing device that detects two-dimensional motion relative to a surface. It uses tiny cameras to take 1500 images per second.

An optical mouse is a computer mouse which uses a light source, typically a light-emitting diode (LED), and a light detector, such as an array of photodiodes, to detect movement relative to a surface.

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Wired optical mouse

Wireless optical mouse

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Functions :

A computer mouse enables its user to move a cursor smoothly and intuitively across a two-dimensional plane. It's therefore an essential input device for selecting, dragging, hovering, and clicking. The mouse allows users to switch between applications, select options and buttons, and move around the screen

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How does it works?

The mouse has a small, red light-emitting diode ( LED ) that bounces light off that surface onto a complementary metal-oxide semiconductor (CMOS) sensor. The sensor sends each image to a digital signal processor for analysis. The DSP, operates instructions per second and is able to detect patterns in the images and see how those patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer .

The mouse has a small, red light-emitting diode ( LED ) that bounces light off that surface onto a complementary metal-oxide semiconductor (CMOS) sensor. The sensor sends each image to a digital signal processor for analysis. The DSP, operates instructions per second and is able to detect patterns in the images and see how those patterns have moved since the previous image. Based on the change in patterns over a sequence of images, the DSP determines how far the mouse has moved and sends the corresponding coordinates to the computer .

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Inside of an optical mouse:

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Mouse button DSP Lens Left Button Light CMOS ( Camera ) Mirror LED

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A computer mouse is a handheld hardware input device that controls a cursor in a GUI (graphical user interface) and can move and select text, icons, files, and folders on your computer.it is mostly used in offices or to play online games.

Types of mouse

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Types of mouse

Track ball mouse

Braille mouse

Magic mouse

Vertical mouse

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Benefits and drawbacks of an optical mouse.

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BENEFITS DRAWBACKS The mouse is a simple component that requires little practice when trying to master it They need a flat space close to the computer he mouse gives the computer user the freedom to move cursors in any direction, unlike the arrows on a keyboard, which constrain the user to a limited set of directions. Older style mice which have roller balls can become clogged with grease and grime and lose their accuracy until cleaned. It is quicker to work with a mouse. Excessive use can lead to health problems such as repetitive strain injury (R.S.I.) Mouse is light to carry. Therefore it is portable If the battery wears out in a wireless mouse, it cannot be used until it has been replaced

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Thank you for your attention .

Shania Mirska Mareemootoo & Navisha Miniandee

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