This selfie camera achieves AF by moving the image sensor along the optical axis (z) using a single Sheba µPistons actuator. It has an ultra slim profile while achieving instant AF. It enables the selection of larger optics that have shallow depth of field such that the user face is in focus while the background is blurred.
Image sensor in motion using Sheba 3-DOF motion piston tube actuator
Sheba Microsystems has also developed a MEMS solution to thermal lens expansion in automotive, drone, medical, action, & security cameras. No incumbent technology can solve the challenge due the large size of the optics and high accuracy of the motion needed
With no competitor in this space along with other advantages such as compensation at the micron level achieving sharper images and the limited motion required (50 um) being ideal for an extended life cycle, this is a sweet spot for Sheba’s technology.