The Claim
A voice coil motor (VCM) autofocus module typically uses a return spring so that when current is reduced or cut, the lens moves back toward a rest position.
The claim matches how most mainstream VCM autofocus modules are designed. Technical sources describe the lens carrier as suspended by springs or flexures, with position set by the balance between magnetic drive force and restoring force. When current is reduced or removed, the lens typically returns toward a default rest or park position, though some less common VCM variants behave differently.
+ 9 more sources — see the full list on Lenz
Claim:
In a voice coil motor (VCM), the magnetic field is provided by a permanent…
NOT BS
Claim:
A voice coil motor (VCM) used for smartphone autofocus has no gears and no friction.
MOSTLY BS
Claim:
Piezoelectric autofocus motors can hold their position without continuous…
HARDLY BS
Claim:
A piezoelectric motor can mechanically hold its position when power is cut…
HARDLY BS