Non-Canting VCM-Actuated Autofocus

摘要

Techniques and apparatuses are described that enable non-canting VCM-actuated autofocus. These techniques and apparatuses enable multiple focal distances that are substantially free of imaging errors caused by canting of a lens housing. These multiple focal distances are provided by multiple positions of a lens housing relative to an image sensor. These positions can be free of cant through use of mechanical stops and corresponding mechanical stop-mates. By so doing, lower cost, faster focusing, higher image quality, lower power, or lower settling time can be achieved.

主权项

1. A camera system comprising:
an image sensor; a lens housing having:
a lens-retention section configured to retain one or more lenses capable of focusing light from a scene onto the image sensor; anda mechanical stop-mate configured to contact a mechanical stop; one or more springs; one or more electromagnets; and the mechanical stop, the mechanical stop configured to contact the mechanical stop-mate effective to prevent cant of the lens housing relative to a planar cross section of at least one of the lenses, the planar cross section parallel to a plane of the image sensor.