What Is the Red Light On The Bottom Of The Mouse?

Generally, a computer mouse use for operating the computer. But most of them you have a question on mind ‘what is the red light on the bottom of the mouse?’ Although it is not for beauty, in fact, it helps the mouse to work properly.

In this post, you guys will know the answer to questions like “what is the glowing red light in the mouse” or “function of red light inside the mouse.” So let’s get started~.

Red light on the bottom of the mouse

The mouse is mainly used to select different computer screen items like to write, read, open, and close them. Various mouse models have additional features and connectivity, but almost all models have two buttons and a scroll wheel on the top of the mouse.

What is the red light on the bottom of the mouse?

The optical or laser mouse usually shines red on the surface where it is located. And why exactly red? … After all, there are so many different colors available!

I also thought about it and even started looking on the Internet, but I could not find an answer. Having studied a few different sources, I decided to tell you why it is red and why the mouse glows red light.

The principle follows: the red LED is on, and then photocell “catches” the reflection. This is how the cursor moves accurately. The higher the dots per inch (dpi characteristic) in the photocell and the better the LED, the more accurately the mouse will transmit coordinates to the computer.

Why exactly red?

The red light is used to locate the mouse pointer. Red is most capable of reflecting a surface in any ambient light – that’s the main reason. There is also an opinion that the red color cannot strongly “light up” the photocell.

For example: when we used to print photographs, we used a red lamp to develop the film, thereby minimizing the risk of flare. Therefore, the mouse works well on any surfaces except fluffy ones.

The red light cannot be removed. If removed, then it wouldn’t work correctly. The sensor will not be able to track the position of the mouse without light.

By the way, the bright green color also reflects reflected light most accurately. But mice with blue lights tend to be expensive. Now, let’s know its principle.

Read Also: Optical Vs. Laser Mouse

Red light inside the mouse

The function of red light inside the mouse

The working principle of the optical mouse: There is a light-emitting diode inside the optical mouse. The light emitted can illuminate the bottom surface of the optical mouse (this is why the bottom of the mouse always emits light).

After that, a part of the light reflected by the optical mouse through the bottom surface passes through a set of optical lenses and then transmits to a light-sensing device (micro image) for imaging.

In this way, when the optical mouse moves, its moving trajectory will be recorded as a set of high-speed and well-organized images analyzed and processed by a dedicated image analysis chip (DSP, or digital microprocessor) inside the optical mouse.

The chip analyzes the changes in the feature points’ position on these images to determine the direction and distance of the mouse movement, thereby completing the cursor positioning.

I hope you guys understand the answer to ‘what is the red light on the bottom of the mouse?’. Well, also share with your friends to make know them.

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Why is my mouse light red?

The main purpose of red light on the bottom of the mouse is to make the mouse move accurately as per the user the moves cursor on the computer screen, It transmits coordinates to the computer.

What are the types of mouse?

There are 9 different types of mice for different purposes and needs: 1. Optical Mouse, 2. Wireless Mouse, 3. Laser Mouse, 4. Gaming Mouse, 5. Trackball Mouse, 6. 3D Mouse, 7. Mechanical Mouse, 8. Ergonomic Mouse, 9. Stylus (Pen mouse).

Is a mouse input or output?

The mouse is one of the input devices of the computer. This is a pointing device that is used to interact with the PC. The mouse is mainly used to select different items on the computer screen like to write, read, open, and close them. By using a mouse, the user instructs the computer to do something.

The optical mouse has a blue light under it right or wrong?

An optical mouse uses a light on the bottom, typically a red LED not blue at all. Because Red is most capable of reflecting a surface in any ambient light to detect movement of the user relative to a surface. It is a cheaper and suitable color for a mouse. But mouse with blue lights tend to be expensive.