Timeline for Light sensors sensitive enough to detect for PWM from CF and LEDs?
Current License: CC BY-SA 4.0
9 events
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| Mar 19, 2019 at 12:16 | comment | added | Zhro | I agree with your statement but we've already established that it would be unusual to view a source at that frequency without the presence of some additional interference. One of the benefits of being able to measure the frequency of monitors which bother me would be to identify a baseline of frequencies low enough to cause me fatigue. It will also help me identify whether the fatigue is in fact PWM or a result of chromatic aberration. | |
| Mar 19, 2019 at 11:03 | history | edited | Edgar Brown | CC BY-SA 4.0 |
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| Mar 19, 2019 at 10:52 | history | edited | Edgar Brown | CC BY-SA 4.0 |
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| Mar 19, 2019 at 10:40 | history | edited | Edgar Brown | CC BY-SA 4.0 |
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| Mar 19, 2019 at 10:16 | comment | added | Edgar Brown | @Zhro regardless, anything above 250Hz is physically impossible to perceive. And I do mean that literally. For slow enough phosphors, such as those used in 50Hz PAL CRT TVs, even the 25Hz interlacing would be fast enough to cause fusion. Under low-light conditions, even the very jerky 24Hz flashing of cinema would be very hard to perceive without motion. | |
| Mar 19, 2019 at 6:30 | comment | added | Zhro | In my case, I believe that a lot of the fatigue I experience is a result of PWM combined with my high eyesight prescription and the resulting chromatic aberration from my corrective lenses. | |
| Mar 19, 2019 at 4:18 | history | edited | Edgar Brown | CC BY-SA 4.0 |
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| Mar 19, 2019 at 0:27 | history | edited | Edgar Brown | CC BY-SA 4.0 |
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| Mar 19, 2019 at 0:02 | history | answered | Edgar Brown | CC BY-SA 4.0 |