Incremental encoders provide speed, direction and relative position feedback by generating a stream of binary pulses proportional to the rotation of a motor or driven shaft. Lander offers both optical and magnetic incremental encoders in 4 mounting options: shafted with coupling, hollow-shaft, hub-shaft or bearingless. Single channel incremental encoders can measure speed which dual channel or quadrature encoders (AB) can interpret direction based on the phase relationship between the 2 channels. Indexed quadrature encoders (ABZ) are also available for homing location are startup.
Incremental Encoder,6Mm Solid Shaft Encoder,Hollow Rotary Encoder,Elevator Door Encoder Jilin Lander Intelligent Technology Co., Ltd , https://www.jllandertech.com
According to reports, the new Laos factory mainly produces 3528 white LEDs for T8 lamps and downlights and 5630 LEDs for medium power lighting and TV backlight applications. The plant is expected to enroll 1,000 workers in 2012. 
[High-tech LED News] Malaysian LED manufacturer Dominant's first overseas semiconductor manufacturing plant settled in Laos, and will also be the first semiconductor manufacturing plant in Laos. A few days ago, Dominant held a grand opening ceremony in Laos.