Ứng dụng công nghệ Laser presenter trong bút trình chiếu đa năng tại trường học

Abstract

Presentation pen with advanced digital pointer and timer with vibration alert. Presentation environments are projector screens, TV & LED screens, video conferencing, multi-monitors. Class 2 laser products are tested to limit energy emissions to ImW of continuous wavelength. Laser light is reflected on LCD and plasma screens, making it less visible. Presentation pen circuit diagram to integrate new features in the future.