Towards non-mechanical wide angle fovea sensor - Fundamental design by liquid crystal lens cell

Sota Shimizu, Susumu Sato

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

3 Citations (Scopus)

Abstract

The authors aim at developing a wide angle fovea sensor by which a gaze point and magnification around it are variable in a field of view (FOV) without mechanical parts. Moreover, this sensor can gaze at not only a single point but also multiple points simultaneously. In order to achieve these functions, we apply liquid crystal (LC) for lens materials and control its distribution of optical refraction. As the first step, this paper introduces a prototype of a LC wide-angle fovea lens, in which the magnification around the central FOV of the LC lens cell is controlled electrically as maintaining its image angle of the FOV. In general, as the LC lens cell responds more quickly, it becomes harder to change the distribution of the optical refraction largely. The authors have developed a special-made wide-angle input lens and have combined it with the LC lens cell in order to achieve both the large change and the quick response. In addition, this paper introduces an experimental environment built up for observing projection images and fringe patterns of the LC fovea lens.

Original languageEnglish
Title of host publicationIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3632-3637
Number of pages6
ISBN (Electronic)9781479917624
DOIs
Publication statusPublished - 2015
Event41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015 - Yokohama, Japan
Duration: 2015 Nov 92015 Nov 12

Publication series

NameIECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society

Other

Other41st Annual Conference of the IEEE Industrial Electronics Society, IECON 2015
CountryJapan
CityYokohama
Period15/11/915/11/12

Keywords

  • Fovea Sensor
  • Liquid Crystal Lens
  • Non-mechanical
  • Simultaneous Gaze at Multiple Points
  • Variable Gaze Point and Magnification
  • Wide Angle Lens

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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    Shimizu, S., & Sato, S. (2015). Towards non-mechanical wide angle fovea sensor - Fundamental design by liquid crystal lens cell. In IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society (pp. 3632-3637). [7392665] (IECON 2015 - 41st Annual Conference of the IEEE Industrial Electronics Society). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IECON.2015.7392665