LED is a new generation of light source that converts electric energy directly into light energy through semiconductor. LED lighting lamps are widely used in indoor and outdoor lighting occasions due to their long life and compact energy-saving appearance.
The basic structure of LED chip is composed of P-N junction semiconductor.When a voltage is applied to the LED chip in a forward and reverse direction, electrons and holes move in the LED chip, generating a current. When electrons and holes of opposite signs collide while moving, they combine. This phenomenon is called recombination. In the recombination state, the energy produced is less than that of the electrons and holes.At this point, the excess energy generated will be converted to light energy and emit light.
The main features are as follows:
- High brightness
- Low temperature and high light efficiency
- Waterproof structure
- Miniaturization of lamps and lanterns
- Super long life
- Ultra-low power consumption
- Easy to adjust light intensity
- Less hot lines/UV light
Shanghai Optics can produce a large number of high-performance lighting lens, including lighting Aspheric lens, Fresnel lens, Spherical lens, flat piece, Prisms and other products. Main applications are automobile lights, airport runway lights, projection lighting, LED lighting, etc.
