Rare earth elements have enabled products such as cell phones and computer hard drives faster, smaller and lighter. They have been used to make color displays more vivid for televisions, computer screens and other devices. They are also essential for in-ear headphones, microphones, loudspeakers, optical fibers, smartphones and tablets. They have greatly improved our communication and computing abilities.
●        Display phosphors
●        CRT
●        PDP
●        LCD
●        Medical imaging phosphors
●        Lasers
●        Fiber optics
    ●   Optical temperature sensors

Rare earth elements are essential in many electronic, optical and magnetic applications.