The difference between optical mouse and laser mouse

The left is a photoelectric mouse, the right side is the laser mouse appearance can not distinguish

The optical mouse works by detecting the displacement of the mouse through infrared ray, then the displacement signal is converted into an electrical pulse signal, and then through the process and conversion of the program to control the movement of the cursor arrows on the screen.

Optical Mouse working diagram

Most optical mice are red LED lights as the light source, because in the visible spectrum, the wavelength of the red light is the longest, its penetration is also the strongest (that is, we often say that anti-jamming). There is still a Blu-ray led on the market, in fact, there is no gap between the two, unless there is progress in technology, the only difference between the two is the color difference.

Photoelectric mouse working status bottom close-up

At present, the market on the market also has infrared light source (that is, not visible light), is misunderstood by many people as a laser mouse, but he is also a common optical mouse, only the use of the invisible light source, the overall power consumption and the effect and the normal red mouse is the same.

How the Laser mouse works

Laser mouse working principle and optical mouse is the same, but the working mode is different, the laser mouse mode of operation is by laser irradiation on the surface of the object produced by the interference fringes formed by the light spots reflected on the sensor, and the traditional optical mouse is irradiated by the rough surface generated by the shadow to obtain.

Laser mouse working state bottom closeup

Therefore, the general laser mouse because the laser can produce a greater contrast to the surface of the image, which makes the image of the imaging sensor easier to identify, making the mouse positioning accuracy is stronger.

2, how to identify the mouse to use what engine

What should we do when we buy? The General Red Mouse and Blu-ray Mouse is definitely a photoelectric mouse, the common user is very confused is the difference between the infrared mouse and laser mouse. Through these pictures we can clearly see the difference between the two.

Photoelectric Mouse Details

The silent photoelectric engine used by the Thunder snake

Ordinary photoelectric mouse engine

Laser Mouse Detail Closeup

Laser Mouse Bottom Closeup

A close-up of the Philips laser engine used by thunder snakes

Philips Laser Engine Closeup

The above two pictures are the engine of the photoelectric mouse, whether it is a normal optical mouse or a silent engine with a large open hole (relative to the laser mouse) and through the hole can clearly see a larger lens.

Ordinary laser Mouse This is the third picture, the hole open very small, look closely can see the hole within the two lens is closely arranged together. The four pictures are the Philips laser engine. There is only one very small hole, and the fifth picture is a close-up of the Philips laser engine. The characteristic is the larger single lens and the yellow-brown, the difference is very obvious.

Through the above several pictures believe that the user has a photoelectric mouse and laser mouse has a certain understanding, but also can be smooth to distinguish it.