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

S. Kang; E. Dotsenko; D. Amrhein; C. Theriault; C. B. Arnold

doi:10.1117/12.2294487

22 February 2018 Ultra-high-speed variable focus optics for novel applications in advanced imaging

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

Author Affiliations +

Proceedings Volume 10539, Photonic Instrumentation Engineering V; 1053902 (2018) https://doi.org/10.1117/12.2294487
Event: SPIE OPTO, 2018, San Francisco, California, United States

Abstract

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.

Citation Download Citation

S. Kang, E. Dotsenko, D. Amrhein, C. Theriault, and C. B. Arnold "Ultra-high-speed variable focus optics for novel applications in advanced imaging", Proc. SPIE 10539, Photonic Instrumentation Engineering V, 1053902 (22 February 2018); https://doi.org/10.1117/12.2294487

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