Опубликован 07.07.2025
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Аннотация
With the increasing demand for compact, touchless, and portable human-computer interaction systems, projection keyboards have emerged as an innovative solution. This paper explores the integration of laser technology—specifically light amplification by stimulated emission of radiation (LASER)—into the design and functioning of next-generation projection keyboards. We discuss the underlying physics of laser operation, the architecture of laser-based projection keyboards, the benefits of laser implementation, and current limitations. A comparative analysis is provided between traditional optical systems and advanced laser-driven systems, along with a perspective on future developments.
Библиографические ссылки
- Siegman, A. E. (1986). Lasers. University Science Books.
- Koechner, W. (2006). Solid-State Laser Engineering (6th ed.). Springer.
- Nakagawa, K., et al. (2019). “Laser-based virtual keyboards: Trends and applications.” Journal of Optical Engineering, 58(4), 043103.
- U.S. Patent No. US7557773B2 (2009). “Projection keyboard system using laser light sources.”
- Nakamura, S. (2017). “Infrared laser detection in human-machine interfaces.” IEEE Transactions on Consumer Electronics, 63(1), 45–52.
- Huang, C. and Wang, Y. (2020). “MEMS-based laser projection for compact input devices.” Sensors and Actuators A: Physical, 315, 112324.