Ultra-high-speed variable focus optics for novel applications in advanced imaging

S. Kang, E. Dotsenko, D. Amrhein, C. Theriault, Craig B. Arnold

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

10 Scopus citations


With the advancement of ultra-fast manufacturing technologies, high speed imaging with high 3D resolution has become increasingly important. Here we show the use of an ultra-high-speed variable focus optical element, the TAG Lens, to enable new ways to acquire 3D information from an object. The TAG Lens uses sound to adjust the index of refraction profile in a liquid and thereby can achieve focal scanning rates greater than 100 kHz. When combined with a high-speed pulsed LED and a high-speed camera, we can exploit this phenomenon to achieve high-resolution imaging through large depths. By combining the image acquisition with digital image processing, we can extract relevant parameters such as tilt and angle information from objects in the image. Due to the high speeds at which images can be collected and processed, we believe this technique can be used as an efficient method of industrial inspection and metrology for high throughput applications.

Original languageEnglish (US)
Title of host publicationPhotonic Instrumentation Engineering V
EditorsCraig Olson, Yakov G. Soskind
ISBN (Electronic)9781510615632
StatePublished - 2018
EventPhotonic Instrumentation Engineering V 2018 - San Francisco, United States
Duration: Jan 30 2018Feb 1 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherPhotonic Instrumentation Engineering V 2018
Country/TerritoryUnited States
CitySan Francisco

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


  • TAG lens
  • high-aspect-ratio imaging
  • high-speed imaging
  • real-time imaging


Dive into the research topics of 'Ultra-high-speed variable focus optics for novel applications in advanced imaging'. Together they form a unique fingerprint.

Cite this