Complex sentence: In 2011 Sony released the HDR-PJ10/30/50 HD camcorders, the first camcorders in the world to incorporate a small image projector on the side of the unit.
Split into simpler sentences: In 2011 Sony released the HDR-PJ10/30/50 HD camcorders. These are the first camcorders in the world to incorporate a small projector located on the side of the unit.