Timex received the patent for the IndigloŽ
nightlight in 1988. The nightlight's bluish green light illuminates the entire
dial of the watch evenly at the push of a button. The dial is coated with a
compound of zinc sulfide mixed with copper, a substance which becomes
luminescent when an electrical charge is applied. This layer is sandwiched
between two conductive layers which act as electrodes. When the button is
pushed, energy is supplied by the battery across the two electrodes, which in
turn lights up the dial.
For more information visit the Timex website at http://www.timex.com
Timex received the patent for the IndigloŽ
nightlight in 1988. The nightlight's bluish green light illuminates the entire
dial of the watch evenly at the push of a button. The dial is coated with a
compound of zinc sulfide mixed with copper, a substance which becomes
luminescent when an electrical charge is applied. This layer is sandwiched
between two conductive layers which act as electrodes. When the button is
pushed, energy is supplied by the battery across the two electrodes, which in
turn lights up the dial.
