The number of cameras on smartphones continues to grow. While a three-camera setup is common at this year's Mobile World Congress trade show in Barcelona that started today, Nokia debuted 9 PureView with five cameras as shown in the video below. The camera's multi-camera technology allows a smartphone to capture details like never before, while a user can not only use Bokeh, but completely change the focus on everything they want in the picture.
The technology that Nokia enters is from a company called "Light" only. Xiaomi is the next company that wants to use next-generation multi-camera technology in their future smartphones, and today the announcement became formal.
Light + Xiaomi
Light, the leader in advanced computing, and Xiaomi Corporation, an internet company with smartphones and smart hardware connected to an Internet site) core platform, today announced the signing of a joint development and marketing agreement new smart phone imaging solutions.
The partnership will see Light bring together its advanced computing technology with Xiaomy's long history of innovation in building high-end smartphone devices so companies can bring to market multi-camera smart devices with DSLR levels .
Light + Sony Semiconductors
Last week, Light announced a joint development with Sony Semiconductors Solutions.
Light, the head of advanced computer systems, announces the agreement with Sony Semiconductor Solutions, the leader in the image sensor industry, and works in community with the development and marketing of multi-image sensor solutions 
The agreement allows Light to use and recommend to its customers and partners, Sony's image sensors built in Lights computational imaging and reference designs, these new reference designs combine Lights multi-camera technology with Sony's image sensors to create new multi-camera applications and solutions beginning with the introduction of smartphones containing four or more cameras.
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Dave Grannan , CEO and co-founder, Light: "Sony is recognized quality and m Archival shares in image sensors, and we are thrilled to work with them. We are entering a whole new era of intelligent imaging applications that will change smartphones, autonomous vehicles and security systems. With Sony's premium image sensors, we can introduce new innovations in the multi-camera imaging area. "
Hank Ochi, president of Component Solutions Business Division, Sony Electronics Inc.:" We are happy to work with Light and run multi-sensor based products and solutions into the market. Light and its technology transforms how devices see the world. This new partnership allows us to work together to develop and accelerate the design of today's multi-image sensor-enabled connected devices. As of today, our commonly developed reference designs will help our smartphone OEMs to quickly and easily enhance the image system of multi-camera enabled smartphones. "
Want to see the light? Check out their website here for more