Projector Focusing Arrangement TRIZ Cases

Magnetic coupling and separated module wiring reduce sensor-shift force while limiting interference for precise AF and OIS.

Magnet, coil, and yoke actuation moves lens assemblies without ball-bearing friction, supporting precise autofocus, stabilization, and optical alignment.

Rolling and sliding supports guide two movable lens modules, helping a compact camera deliver autofocus and zoom without added thickness.

A back yoke covers the magnet side with a gap to boost electromagnetic drive and support compact, precise camera actuation.

Protrusions inserted into sensor-base recesses prevent shifting during adhesive curing and help maintain optical alignment and consistent height.

Opposite-current parallel paths reduce magnetic flux from PWM-driven SMA wires, helping prevent camera image artifacts.

This camera actuator uses upper and lower balls to guide lens movement, supporting OIS in ultra-slim, high-resolution cameras without added size.

Magnetic shielding separates driving magnets from Hall sensing to stabilize precise optical-element positioning for autofocus and zoom.

Variable-length sub-coils help move two lens assemblies farther along the optical axis for autofocus and zoom in slim cameras.

An electromagnetic lock moves the lens holder to a regulated position with reduced force, limiting power-off movement, shock, and noise.

Independent lens groups and an optical path folding element support continuous zoom, larger apertures, and a smaller mobile camera bump.

Reverse current pushes the autofocus lens unit onto a tension member, preventing rocking and banging during phone vibration.