t7 led bulb in mouse application

General speaking about led lights, common optical mouse usually refers to the use of optoelectronic components, according to the logical judgment on the mobile surface of the image to generate mouse move data.

The optical mouse works: inside the optical mouse, a light-emitting diodes, to illuminate the optical mouse at the bottom of the surface (which is always shining ). Then part of the light reflected back to the surface of the bottom of the optical mouse, through an optical lens, transfer to a light sensing device (micro-imaging) within the image.

Thus, when the optical mouse moves, the movement trajectory will be recorded as a group of high-speed shooting of a coherent image. Finally, the optical mouse inside a dedicated image analysis chip (DSP, or digital microprocessors) intake on the trajectory of a series of image analysis and processing, and analyzed through the change of the characteristic points on these images to determine the moving direction and moving distance of the mouse, thus completing the positioning of the cursor.

The optical mouse usually consists of the following: optical sensors, optical lens, light-emitting diode, the interface microprocessor, touch buttons, scroll wheel, connection, PS / 2 or USB interface. Next we focus to understand the light-emitting diode (t7 led bulb) optical mouse.

But why the common optical mouse LED is red?

Why did we choose red? Actually, the reason is relatively simple, since red-light LED technology is relatively mature, and the cost of pay is relatively cheap. This makes the longest life of the red bright LED (t7 led bulb) . Imaging of the optical engine is monochrome, no matter what color the light source does not have an impact. In this case, in addition to a few companies other than for manufacturing, selling, most manufacturers will of course select a red product, so that as many optical mouse with blue LED (t7 led bulb) , to make a difference, but is essentially the same.

Looking ahead, even if the laser mouse great popularity of the potential, but still inseparable from the LED auxiliary light. Nevertheless, the optical mouse Popularization of view, the LED products  in the mouse continues to occupy the absolutely dominant position, can not shake.