Omnivision makes the world’s smallest commercially available camera sensor. (Image: Omnivision)
A specialist medical camera sensor, the size of a grain of sand, has won the Guinness World Record for being ‘the smallest commercially available image sensor’. California-based OmniVision Technologies made the OV6948 sensor that measures 0.575mm x 0.575mm X 0.232mm and has an image array capable of capturing 200 x 200 resolution video at up to 30 frames per second (fps).
The company has said that the camera sensor has been initially developed for small-outer-diameter medical endoscopes and can be designed into a wide range of applications, including dental, veterinary, IoT, industrial, wearable and forensic devices.
The image sensor has a 1/36-inch optical format and offers low-light sensitivity of 1000 mV/lux-sec. The image sensor has a pixel size of 1.75 microns, an analogue signal output, and needs a single 3.3V power supply. It can operate at -20-degree to +70-degree centigrade junction temperature and the stable image is produced between 0-degree to +50-degree junction temperature.
As per the company, “The sensor enables easy integration with a 4-pin interface and analogue data output, capable of data transmission of up to 4 meters with minimal signal noise.”
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Omnivision says that due to the sensor’s low power consumption, less heat is generated at the distal tip of the endoscope. This, in turn, improves patient comfort and permits longer-duration procedures.
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Omnivision has designed the OVM6948-RALA camera integrating the OV6948 image sensor. The camera can fit down the smallest of veins in the human body helping surgeons with the surgical procedures. The camera unit offers a 120-degree wide-angle of view, offering a depth of field range from 3mm to 30mm.
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