usb optical mouse what does it mean

The so-called USB OPTICAL MOUSE is actually our commonly used USB optical mouse. This mouse is plug-and-play and does not require manual driver installation.

You should have encountered the problem that the mouse cannot be used after being plugged in. This problem is generally not caused by the driver. It is more likely that the mouse is damaged or the system is faulty. (Recommended learning: phpstorm)

All USB mice can be directly recognized and used after being plugged into the USB interface to complete basic moving and clicking functions, but the above function keys need to be installed. The driver can be used.

If a prompt that the driver cannot be found appears, it means that the system cannot recognize the mouse normally. You can try to change the interface. It is best to use the body interface. If it still cannot be recognized, it is usually a problem with the mouse itself. You can try it on another computer.

Optical mouse (also known as "optical mouse") uses light-emitting diodes and photodiodes to detect the relative movement of the mouse to a surface. It is not like a mechanical mouse that drives two mutually-operated devices through the rotation of the mouse ball. Rotate the vertical axis to obtain the position of the mouse movement.

The earliest optical mouse required the use of a pre-printed mouse pad surface to detect mouse movement. However, current optical mice cannot detect mouse movement if they work on a transparent surface. , like a glass mirror.

Laser diodes can achieve better resolution and accuracy. A battery-powered wireless optical mouse saves power by intermittently flashing its optical components, with the LEDs lighting up steadily only when motion is detected.

Infrared scattering light spot irradiates particles, light source pulse signal sensor with light-emitting semiconductor and photoelectric sensor. The optical mouse detects the displacement of the mouse, converts the displacement signal into an electrical pulse signal, and then processes and converts it through the program. A hardware device that controls the movement of the cursor arrow on the screen.

The photoelectric sensor of the optical mouse replaces the traditional rolling ball. This type of sensor needs to be used with a special pad with a striped or dotted pattern.

Method to judge the signal

The optical mouse uses a photointerrupter to judge the signal. Its most significant feature is that it requires the use of a special reflector as a guide when the mouse moves. pad. The main feature of this pad is its tiny black and white dots.

This is because, at the bottom of the optical mouse, there is a light-emitting diode and two mutually perpendicular photosensitive tubes. When the light-emitting diode illuminates the white point and the black point respectively, it will produce two states of refraction and non-refraction, and the photosensitive tube will generate corresponding signals after processing these two states, thereby prompting the computer to respond. Without that pad, the optical mouse won't work

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