Folded Camera Actuation

Folded-optics architecture is the next generation of dual camera zoom. The ever demanding market need for a high zoom factor results in long lenses and thick camera modules. On the other hand, phone design trend is for an ever thinner structure. Our innovative folded-optics tele camera allows customers to enjoy the best of both worlds.

The Corephotonics folded optics folds the light by using a prism and orients the lens barrel such that it is parallel to the phone surface. This results in a high focal lens camera, with a thinner-than-a-pencil height.

Corephotonics Hawkeye camera, with combination of Corephotonics image fusion technology, allows true optical zoom factor of up to two times more than any camera available in the market today. The high focal length of the tele camera allows taking detailed images of far object, while introducing a true shallow depth of field (optical Bokeh) effect for vivid images.

To allow for sharp images, the Hawkeye camera has a closed loop fast AF mechanism. The AF mechanism shifts the lens using a voice coil motor (VCM) structure, designed especially for folded structured cameras. The VCM structure consists of a magnet and a coil, which shifts the lens, and a Hall bar (high precision position sensor), allowing for fast control to accurately set the lens in the exact position. Assisted by a PDAF sensor and our dual camera depth map we can measure the object distance from the photographer, and have superfast focusing. Using an ultra large lens shift, our AF mechanism allows focusing from infinity, for zooming in on far objects, to a 20cm detailed macro shots with extremely shallow depth of field.

The Hawkeye camera is equipped with an optical image stabilization (OIS) and low F/# lens features, which make our camera suited for low light shots. The embedded OIS system tracks the phone’s tilt due to handshakes using an embedded gyro and shifts optical parts to compensate for this tilt. Our OIS allows reducing the handshakes and increasing exposure by two stops. The lens design has a low F/# which allows a lot of light reaching the sensor, up to five times more light than standard cameras.