ODA-6W-100M

Optical Sensors – Photodiodes – ODA-6W-100M Application Field and Working Principle

Optical Sensors – Photodiodes are widely used in various applications, such as environmental monitoring, machine vision, communications, imaging and detection. One of the frequently used models is the ODA-6W-100M Photodiode. This is a full glass-body sensor with an optical active area of 6 mm2. The device is made with two layers of CdS/CdTe, thereby capable of detecting both near and far-infrared radiation.

The ODA-6W-100M has a range of applications. Primarily, it is used in the image sensing field, such as for industrial and medical vision system, surveillance, machine vision, and remote sensing. It is also used in night vision by military, airborne, and ground equipment. Additionally, photodiodes are used in laser scanning, facial detection, line monitoring, solar cell evaluation, surveillance, Infrared thermopile detectors for non-contact temperature measurements, and infrared detectors for fire and intruder detection systems.

The working principle of the ODA-6W-100M photodiode is based on the photovoltaic effect, wherein a current results from the absorption of incident light by the material. The photo-diode is the simplest possible type of light sensing element, and is created by connecting a sequence of p-n junctions together, adhering to the back of the substrate. The received light is passed through the lenses, wherein each diode in the chain absorbs a portion of the light until it reaches the bottom. The resulting electric current is measured, to calculate the intensity of the light received.

These photodiodes have a high degree of efficiency, emitting only a small amount of energy (heat) when triggered and requiring no external power. They are highly sensitive and can detect a slight change in light levels. This makes them particularly useful when detecting movement. Additionally, they have excellent response time, low noise performance and good ambient illumination immunity.

The ODA-6W-100M photodiode is designed to have a wide spectral range, with a spectral response range of 350 nm to 1700nm. It also has a wide dynamic range that is adjustable according to the application. Furthermore, it has an operating temperature range of -40°C to +85°C and is 100% waterproof and dust-proof. In short, the ODA-6W-100M photodiode is an ideal choice for any application, particularly in the field of image sensing.