Sony may not make the world’s most popular smartphones or cameras, but it’s playing a bigger role in those industries than what meets the eye: the company’s image sensor business has been booming in recent years. In 2014, Sony was the company that made 40% of all the sensors sold across the globe.
http://petapixel.com/2015/05/01/40-of-all-camera-sensors-sold-in-2014-were-made-by-sony/