FIELD: electricity.
SUBSTANCE: device contains a case, light-emitting devices, switches, cylindrical electrochemical power supplies; at least said light-emitting devices are completely or mainly integrated in a space of grooves between round walls of the loose-fitting power supplies and an external circuit of the enclosing jacklight case.
EFFECT: maintained small dimensions and high mechanical strength of the jacklight.
11 cl, 4 dwg
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