Opto Circuits India Ltd offers Infrared Emitters & Detectors. Opto Circuits India Ltd has ISO 9001-2000 and ISO 13485-2003 quality system certification. Opto Circuits India Ltd supplies various types of Power Protection & Controlling Equipments. The Infrared Emitters & Detectors are discrete components that detect or receive infrared light. These are also building blocks in optoelectronic applications. They consist of light sensors such as photodiodes and phototransistors, which are semiconductor chips capable of converting light into electrical signals. The sensors are attached to lead frames and are mounted on PCBs or ceramic carriers or in plastic packages.