Abstract

A self-active back and forth motion mechanism for optical systems was designed and realized without electrical power consumption. The system utilized the beam converging feature and thermal heating performance of lenses in combination with the thermal-based phase-changing feature of a shape memory alloy (SMA) actuator. Prototype 1 was designed and fabricated with a fixed lens group and a movable lens group, and its feasibility was confirmed through experiments. An optimized focusing pattern suitable for the SMA actuator was realized by employing a cylindrical Fresnel lens, and prototype 2 was built using a simplified fabrication method. We believe that our design is economical and environment friendly. A few potential applications can be optical/mechanical switches for solar energy panels, control units for outdoor equipment, and solar power chargers.

© 2019 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Life cycle analysis of electrically actuated SMA spring using Talbot interferometry

Reena Disawal, Tameshwer Nath, Shashi Prakash, and I. A. Palani
Appl. Opt. 57(20) 5779-5783 (2018)

Applications of shape memory alloys in optics

Boonsong Sutapun, Massood Tabib-Azar, and Michael A. Huff
Appl. Opt. 37(28) 6811-6815 (1998)

Optical design and demonstration of microtracking CPV module with bi-convex aspheric lens array

Atsushi Ito, Daisuke Sato, and Noboru Yamada
Opt. Express 26(18) A879-A891 (2018)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription