Single emitter, dual detector. As in a full optical encoder. The LED is not modulated (but turned off for power-saving) But wheel also works as middle button. (check the software) The "dector" is actually a camera. It is the chip mounted next to the LED, almost in the center. It have a small input hole on the underside. (visible in the video) The camera got a processor that check the image for movement. Complex stuff, just looks simple due to integration.

At 4:02 is where he comments on the emitter. I can clarify his statements. The single "LED' emitter detector (an imaging array) is all built in the one emitter (an integrated circuit), the emitter 'bulb' itself emits a signal at given frequency with a specific wavelength of light, red or blue, the frequency it pulses light it is acting like a little camera flash, then when the light reflects back hitting a small (very low resolution} image of the surface, after that an image is sent to the mouses controller (a micro-controller) there is a complicated process that goes on as the micro-controller compares multiple images it receives, there are mice where it's controller will only compare two images, and some that will compare many images, making them more accurate, and giving the user a better experience, after a determination is made by it's controller, it then sends the result out to your computer in various types of connection, ie wireless or cabled. This is a good explanation that I made, the process explanation can be made much greater detail!

The camera is looking straight down, and the LED illuminate the surface at an angle. You can probably get a quite good idea about what's going on by trying it with a flashlight at a low angle and a web-cam pointing straight down. If you use "live preview" for the camera you can see movement. The software/hardware on the camera chip inside the mouse does the same. The optics is just a plastic lens, basically just a fixed focus camera.

Wow, you clearly know more than I do, can you explain the optics and how it all works, is the camera looking for movement of the led's light relative to the stationary surface?

Everyone here seems to knwo quite a lot. But I have a question, so my mouse won't work the light will turn on. And then turn off right after and stay off. Help please I payed $20+ fir it

bro just openned mouse

Mice are a pain when ya get a problem. and to take apart too! when theres loads of parts falling everywhere lol ans screws" so i just put it in the bin and get another one. ;) Thumbs up*

هذا الصح😍

it's not LED, but LASER

@pointedspider

7 жыл бұрын

its an LED

If I were you, I would gather lil bit more knowledge before pretending to teach others or instead never bother to make a video.