Development of Nonmechanical Zoom Lens System using Liquid Crystal

Haruka Hirai, Sota Shimizu, Takumi Saito, Hokuto Kurihara, Marenori Kawamura, Susumu Sato

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The Liquid Crystal (LC) zoom lens system has strong advantages with respect to its size and small electric power consumption, because this lens system does not have any mechanical part. The authors take into consideration a structure of the Galilean telescopic type of the zoom lens system because it makes a total length of the lens system be smaller. Its performance is simulated. There exists a trade-off between the response time of the LC lens and its potential maximum lens power. The lens power, defined as the reciprocal of the focal length, is a very important factor of the LC lens, by which a variable range of the magnification change is determined. In this paper, the authors discussed and tested a structure of the Galilean LC lens zoom system. This structure achieves the same variable range of the magnification change by using the LC lens with a much smaller lens power. This result is quite helpful for the response time and brightness of the LC zoom lens system. Simulation results showed its potentials.

Original languageEnglish
Title of host publicationProceedings
Subtitle of host publicationIECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society
PublisherIEEE Computer Society
Pages5370-5375
Number of pages6
ISBN (Electronic)9781728148786
DOIs
Publication statusPublished - 2019 Oct
Event45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 - Lisbon, Portugal
Duration: 2019 Oct 142019 Oct 17

Publication series

NameIECON Proceedings (Industrial Electronics Conference)
Volume2019-October

Conference

Conference45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019
CountryPortugal
CityLisbon
Period19/10/1419/10/17

Keywords

  • Galilean telescopic type
  • liquid crystal zoom lens
  • non-mechanical zoom lens
  • optical performance
  • response time

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Hirai, H., Shimizu, S., Saito, T., Kurihara, H., Kawamura, M., & Sato, S. (2019). Development of Nonmechanical Zoom Lens System using Liquid Crystal. In Proceedings: IECON 2019 - 45th Annual Conference of the IEEE Industrial Electronics Society (pp. 5370-5375). [8927481] (IECON Proceedings (Industrial Electronics Conference); Vol. 2019-October). IEEE Computer Society. https://doi.org/10.1109/IECON.2019.8927481