The leading manufacturer of LED optoelectronic industry in the world, Yiguang Electronics Industry Co., Ltd. [TSE: 2393] introduced the new ALS-PD50-42C series of ambient light sensors, which use the 550nm band of green sensing, low signal calculation error and high output current efficiency. It is easy to detect heart rate signals, especially for wearable applications such as sports watches.
In recent years, influenced by the concept of health, the national movement has flourished, and it has paid more attention to health management and exercise efficiency. With the evolution of technology, today's sensors are the most intelligent test methods, with non-invasive light volume principle PPG ( Photoplethysmogram), the change in current output from the sensor after reflection of the emitted green LED to the sensor, the change in blood flow in the microvessel, and the calculation of the heartbeat frequency signal.
Yiguang ALS-PD50-42C series is the most advanced ambient light sensor. It adopts large photosensitive area design and has a photosensitive area of ​​8.1mm2. It mainly considers the skin contact of the subject and is easily interfered by skin color, tattoo or hair, and increases the sensing. The area can increase the recognition ability, the signal receiving is more intense and stable, and even the mobile or runner can detect the heartbeat frequency in the most real time and conveniently.
The ALS-PD50-42C series has a 0.8 μA current signal output (Vr = 5V) under 100Lux white LED illumination. This excellent photoelectric conversion efficiency can better analyze the light energy signal reflected by the skin surface microvessels. The special coating design effectively reduces the ultraviolet light below 400nm and the infrared light interference above 650nm, and reduces the influence of excessive sunlight during outdoor sports, and the detected result is more accurate.
The ALS-PD50-42C series withstand temperatures from -40°C to 85°C and can be used at voltages from 0 to 5V, while being RoHS compliant, lead-free and halogen-free, making them ideal for wearable applications such as sports watches. The most lightweight way to extract heart rate information.
Combining professional R&D, business and marketing teams, we have been pursuing innovation and breakthrough in packaging technology with more than 33 years of professional development capabilities to provide customers with impeccable product solutions.
product picture
ALS-PD50-42C series ambient light sensor adopts sensing green light 550nm band, low signal calculation error, high output current efficiency, easy to detect heart rate signal, especially suitable for wearable applications such as sports watches (select the appropriate package according to customer needs) Structure and product materials).
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