OmniVision Technologies Inc. OmniVision's front-side illumination FSI technology is used to manufacture compact cameras in mobile handsets, notebook computers and other applications that require low-light performance without the need for flash.
OmniPixel3-GS expands on its predecessor, and is used for eye-tracking for facial authentication, [ 14 ] and other computer vision applications. Backside illuminated image BSI technology differs from FSI architectures in how light is delivered to the photosensitive area of the sensor. In FSI architectures, the light must first pass through transistors, dielectric layers, and metal circuitry. In contrast, OmniBSI technology turns the image sensor upside down and applies color filters and micro lenses to the backside of the pixels, resulting in light collection through the backside of the sensor.
These technology changes were made to improve low-light sensitivity, dark current , and full-well capacity and provide a sharper image. In this camera module , sensor and lens manufacturing processes are combined using semiconductor stacking methodology. These fully integrated chip products have camera functionality and are intended to produce thin, compact devices. RGB-iR technology uses a color filter process to improve color fidelity.
This makes it possible to capture both day and night images with the same sensor. It is used for battery powered home security cameras as well as biometric authentication, such as gesture and facial recognition.
OmniVision developed its PureCel and PureCel Plus image sensor technology to provide added camera functionality to smartphones and action cameras. The technical goal was to provide smaller camera modules that enable larger optical formats and offer improved image quality, especially in low-light conditions.
