ST uses shape memory alloy actuators in motion sensing devices

February 23, 2012 — STMicroelectronics (STM) is implementing shape memory alloys (SMA) in its optical image stabilization (OIS) motion sensor designs. Actuators made of SMAs contract upon heating.
 
OIS uses feedback from motion sensors embedded in the mobile device to control the mechanical actuator that compensates for slight movements of the user’s hand, resulting in sharper images even in low-light conditions.

Small size and low power requirements allow SMA "smart materials" to be used in actuators that are dramatically more compact, lighter, more powerful and quiet, ST reports. The technology is an alternative to voice coil motors (VCMs) and piezoelectric elements.

See STMicroelectronics at the Mobile World Congress in Barcelona on February 27 – March 1, 2012 at its booth (Hall 7, 7C18).

View recent issues of the MEMS Direct newsletter

POST A COMMENT

Easily post a comment below using your Linkedin, Twitter, Google or Facebook account. Comments won't automatically be posted to your social media accounts unless you select to share.

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>

NEW PRODUCTS

SEMI-GAS Xturion Blixer enables on-site blending of forming gas mixtures
10/03/2017The Blixer provides a cost-effective alternative to purchasing expensive pre-mixed gas cylinders by enabling operators to blend ...
Automated thickness measurement system speeds production
09/20/2017ACU-THIK is an automated thickness measurement tool incorporating dual contact probes for high accuracy inspection of semiconductor wafers....
3D-Micromac launches the second generation of its high-performance microcell OTF laser systems
04/17/2017The high-performance production solution for Laser Contact Opening (LCO) of PERC solar cells achieves a th...