5 ms·
LED brightness is controlled by pulse-width modulation: at low frequencies, the camera LED would appear dimly lit. A more sophisticated approach might be to com
by sangnoir 7y ago
LED brightness is controlled by pulse-width modulation: at low frequencies, the camera LED would appear dimly lit. A more sophisticated approach might be to combine gaze detection to ramp-down frequency if someone is looking towards the camera/LED.
- kevin_thibedeau 7y agoA momentary flicker would not be perceptible in a lit room.
- ljm 7y agoA momentary click on a phone line was also imperceptible... until it wasn’t. You might not even see the flicker but if you catch it in your peripheral vision often enough, or you found out someone else was caught by it or it hit the news big time, you’d suddenly become more suspicious about that momentary flash. Maybe even paranoid.
- kickopotomus 7y agoPWM reduces average power. If the LED is on the same circuit as the camera, I don't know how successful you will be at powering the camera while trying to dim the LED.