Back Illuminated Sensor (BSI) vs CMOS Image Sensor

BACK ILLUMINATED SENSOR (BSI) VS CMOS IMAGE SENSOR

BACK ILLUMINATED SENSOR (BSI) VS CMOS IMAGE SENSOR • Knowing the between back illuminated sensor (BSI) vs CMOS image sensor is very important when you are purchasing a digital camera or smartphone. A BSI sensor is particularly beneficial to small sensors such as those that are found in smartphones as well as compact cameras where the small size of the sensor implies that it is mostly dominated by wiring that prevents light from reaching it.

There are some recent developments that have seen the use of the back illuminated sensors in APSC CMOS sensors and full-frame CMOS sensors for improved noise performance. The majority of BSI sensors use the Bayer filter pattern. • Complementary Metal Oxide Semiconductor sensors, or CMOS sensors, use less power compared to charge coupled device sensors, hence they are the better alternative if want to taking pictures or record videos for long without recharging your camera every now and then. They also allow quicker read speed compared to the CCD sensors, something that allows for high speed continuous shooting as well as high speed full HD video and 4K video recording in some cameras. Just like BSI sensors, majority of the CMOS sensors use the Bayer filter pattern.

BACK ILLUMINATED SENSOR (BSI) VS CMOS IMAGE SENSOR • When choosing between a BSI sensor and conventional CMOS sensor, the former will be the better option because it features a design that makes it easier to capture light to reach the photo diodes on the sensor. This is different from a regular frontilluminated sensor where light has to travel through the metal wiring and circuit elements before it finally hits the photo diodes. In the BSI sensor, the wiring is moved behind the receiving surface. This design makes the sensor more light sensitive. And when the sensor is more sensitive, it means that you do not need a lot of light in order to get a properly exposed photo. Less noise is created when the sensor is more sensitive, something that enables you to take high quality, clear pictures even in dim light.

BACK ILLUMINATED SENSOR (BSI) VS CMOS IMAGE SENSOR • For more information on back illuminated sensor (BSI) vs CMOS image sensor, visit our website at https://www.ovt.com/

BACK ILLUMINATED SENSOR (BSI) VS CMOS IMAGE SENSOR