1.  Technical Field
This disclosure relates generally to camera systems, and more specifically to lens systems for small form factor cameras. 
2.  Description of the Related Art
The advent of small, mobile multipurpose devices such as smartphones and tablet or pad devices has resulted in a need for high-resolution, small form factor cameras for integration in the devices.  However, due to limitations of conventional camera technology, conventional small cameras used in such devices tend to capture images at lower resolutions and/or with lower image quality than can be achieved with larger, higher quality cameras.  Achieving higher resolution with small package size cameras generally requires use of a photosensor with small pixel size and a good, compact imaging lens system.  Advances in technology have achieved reduction of the pixel size in photosensors.  However, as photosensors become more compact and powerful, demand for compact imaging lens system with improved imaging quality performance has increased.