MAGNETIC SHIELDING BETWEEN VOICE COIL MOTORS IN A DUAL-APERTURE CAMERA

摘要

A dual-aperture camera with two camera modules that include each a voice coil motor (VCM) actuator coupled to respective lens barrels and a magnetic shield plate positioned tightly between the two camera modules. The shield plate reduces or even prevents magnetic interference during operation of each VCM actuator to move its respective lens barrel. In some embodiments, the magnetic shield plate is rectangular and has a length and a height that are not larger than the length and height of either camera module. The magnetic shield plate may be made of any ferromagnetic material. Exemplarily, it may be made of grey iron or FeCo.

主权项

1. A dual-aperture camera comprising:
a) a first camera module including a first voice coil motor (VCM) actuator coupled to a first lens barrel, the first VCM actuator operable to change a position of the first lens barrel in a given direction; b) a second camera module including a second VCM actuator coupled to a second lens barrel, the second VCM actuator operable to change a position of the second lens module in the given direction; and c) a magnetic shield plate fixedly positioned between the first and second camera modules, whereby the magnetic shield plate shields magnetically each VCM actuator from magnetic interference by the other VCM actuator during operation.