From Bell’s Photophone to the Light Age: How Wireless Took a Wrong Turn — and How We Correct It
Independent Voices
RF Safe
Nov 29, 2025
This RF Safe commentary argues that wireless communications “took a wrong turn” by prioritizing radiofrequency/microwave transmission over light-based approaches, citing Alexander Graham Bell’s 1880 photophone as an alternative model. It suggests that widespread, continuous RF exposure in modern environments is…
The Clean Ether Light Age Roadmap
Independent Voices
RF Safe
Nov 29, 2025
RF Safe argues for a transition from microwave-based wireless (cellular/Wi‑Fi/Bluetooth) to light-based communications (e.g., Li‑Fi) to reduce indoor RF exposure. The piece claims chronic, low-level RF exposure may pose health risks beyond heating and calls for a precautionary approach, while also criticizing U.S.…
Demonstration of long-distance hazard-free wearable EEG monitoring system using mobile phone visible light communication.
Research
RF Safe Research Library
Jan 1, 2017
This paper describes an engineering approach to avoid RF/microwave radiation in wearable EEG data transmission by using visible light communication. The system performance was tested at different illuminance levels and an algorithm for low-illuminance operation was proposed. The authors report error-free transmission…