How LEDs, photodiodes, and analog electronics turn reflected light into a heartbeat, and where the measurement breaks.
How LEDs, photodiodes, and analog electronics turn reflected light into a heartbeat, and where the measurement breaks.
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Smart Glasses Could Replace Smartphones — But the Hardware Isn’t Ready Yet
Tiny batteries, optical waveguides, AI processors, thermal limits, antennas, cameras, sensors, and advanced semiconductor packaging remain the biggest engineering barriers to replacing today’s smartphone.
