Low-power liquid lens having si cylinder chamber for capsule endoscope

Seo Sangwon, Han Seungoh, Jun Ho Seo, Young Mok Kim, Moon Sik Kang, Nam Gi Min, Woo Bum Choi, Man Young Sung

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

Abstract

The liquid lens based on MEMS technology can be an appropriate solution to improve the imaging capability of a capsule endoscope because it can be realized small enough and also consume negligible power. In this paper, a cylinder-type liquid lens was designed to minimize the dead area and then fabricated with MEMS technology combining the silicon thin-film process and the wafer bonding process where the multiple dielectric layer of Teflon, silicon nitride and thermal oxide was formed on the cylinder wall. The focal length of the lens module including the fabricated liquid lens was changed reproducibly as a function of the applied voltage. With the change of 30V in the applied bias, the focal length of the constructed lens module could be tuned in the range of about 42cm. The fabricated liquid lens was also proven to be small enough to be adopted in the capsule endoscope, which means the liquid lens can be utilized for the imaging capability improvement of the capsule endoscope.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages25-30
Number of pages6
Volume1075
Publication statusPublished - 2008 Dec 1
Event2008 MRS Spring Meeting - San Francisco, CA, United States
Duration: 2008 Mar 242008 Mar 28

Other

Other2008 MRS Spring Meeting
CountryUnited States
CitySan Francisco, CA
Period08/3/2408/3/28

Fingerprint

endoscopes
Endoscopy
capsules
Capsules
Lenses
chambers
lenses
Liquids
liquids
microelectromechanical systems
MEMS
modules
Imaging techniques
Wafer bonding
teflon (trademark)
Polytetrafluoroethylene
Silicon
Silicon nitride
Polytetrafluoroethylenes
silicon nitrides

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Sangwon, S., Seungoh, H., Seo, J. H., Kim, Y. M., Kang, M. S., Min, N. G., ... Sung, M. Y. (2008). Low-power liquid lens having si cylinder chamber for capsule endoscope. In Materials Research Society Symposium Proceedings (Vol. 1075, pp. 25-30)

Low-power liquid lens having si cylinder chamber for capsule endoscope. / Sangwon, Seo; Seungoh, Han; Seo, Jun Ho; Kim, Young Mok; Kang, Moon Sik; Min, Nam Gi; Choi, Woo Bum; Sung, Man Young.

Materials Research Society Symposium Proceedings. Vol. 1075 2008. p. 25-30.

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

Sangwon, S, Seungoh, H, Seo, JH, Kim, YM, Kang, MS, Min, NG, Choi, WB & Sung, MY 2008, Low-power liquid lens having si cylinder chamber for capsule endoscope. in Materials Research Society Symposium Proceedings. vol. 1075, pp. 25-30, 2008 MRS Spring Meeting, San Francisco, CA, United States, 08/3/24.
Sangwon S, Seungoh H, Seo JH, Kim YM, Kang MS, Min NG et al. Low-power liquid lens having si cylinder chamber for capsule endoscope. In Materials Research Society Symposium Proceedings. Vol. 1075. 2008. p. 25-30
Sangwon, Seo ; Seungoh, Han ; Seo, Jun Ho ; Kim, Young Mok ; Kang, Moon Sik ; Min, Nam Gi ; Choi, Woo Bum ; Sung, Man Young. / Low-power liquid lens having si cylinder chamber for capsule endoscope. Materials Research Society Symposium Proceedings. Vol. 1075 2008. pp. 25-30
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