Coaxially bifocal liquid crystal lens with switchable optical aperture

Che Ju Hsu, Shang Yi Chih, Jyun Jia Jhang, Chen Hao Liao, Chi Yen Huang

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


An electrically tunable liquid crystal (LC) lens with dual hole-patterned electrodes is demonstrated. When the LC lens is operated at low voltages, the dual hole-patterned electrodes with different diameters impart the lens with a coaxial bifocal characteristic. At high voltages, the proposed LC lens functions as a conventional lens with a single focal length but with a switchable optical aperture. The demonstrated LC lens is free of disclination lines because of the presence of voltage-assisted high pretilt angles created from the upmost hole-patterned electrode with small diameter.

Original languageEnglish
Pages (from-to)336-342
Number of pages7
JournalLiquid Crystals
Issue number3
Publication statusPublished - 2016 Feb 19

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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