this aint some creep cam is it? im at a five star hotel rn wtf

  • jet@hackertalks.com
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    1 year ago

    When fully light-adapted, the human eye features a wavelength response from around 400 to 700 nanometers, with a peak sensitivity at 555 nanometers (in the green region of the visible light spectrum). The dark-adapted eye responds to a lower range of wavelengths between 380 and 650 nanometers, with the peak occurring at 507 nanometers. source

    • dave@feddit.uk
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      1 year ago

      From that source:

      At threshold sensitivity, the human eye can detect the presence of about 100-150 photons of blue-green light (500 nanometers) entering the pupil.

      So I guess either blue or green leds are good for this application, and green much cheaper…

    • Tetsuo@jlai.lu
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      1 year ago

      I will just say that the recent video from Veritasium about night vision goggles does indeed say that you see better the blue light in the dark rather than the green.

      And that’s why high end military grade night vision goggles are in the blue spectrum.