Cutting high index of refraction glass with picosecond lasers for AR eyewear

Terence Hollister; James M. Bovatsek

doi:10.1117/12.2651004

17 March 2023 Cutting high index of refraction glass with picosecond lasers for AR eyewear

Terence Hollister, James M. Bovatsek

Proceedings Volume PC12408, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVIII; PC124080F (2023) https://doi.org/10.1117/12.2651004
Event: SPIE LASE, 2023, San Francisco, California, United States

Abstract

A relatively new consumer electronics market is active eyewear, which includes virtual reality (VR) and augmented reality (AR) glasses. AR glasses present the challenge of combining the functionality of conventional eyeglasses with that of projected graphics, leading to the use of glasses with higher than typical indices of refraction. Infrared (IR) picosecond pulse lasers are commonly used for cutting conventional glasses. We present results using a 50 W IR picosecond laser to cut high-index glass for AR eyewear applications, demonstrating excellent quality at with high throughput. Straight line as well as curved contour cutting are demonstrated.

Conference Presentation

Citation Download Citation

Terence Hollister and James M. Bovatsek "Cutting high index of refraction glass with picosecond lasers for AR eyewear", Proc. SPIE PC12408, Laser Applications in Microelectronic and Optoelectronic Manufacturing (LAMOM) XXVIII, PC124080F (17 March 2023); https://doi.org/10.1117/12.2651004

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