Patent ID: 8368317
Filing Date: 2013-02-05
Classification: H05B

Abstract:
1. A flashlight with momentary function and multiple lighting modes comprising a light source; a power supply; an integrated circuit electrically connected with the power supply and the light source; and a mechanical switch activated by a pushbutton so that each depression of the pushbutton causes the switch to cycle through a first state, a second state and a third state sequentially; when the switch is in the first state, it is electrically connected to a first port of the integrated circuit and the integrated circuit drives the light source to operate in a first lighting mode; when the switch is in the second state, the switch is electrically connected to a second port of the integrated circuit and the integrated circuit drives the light source to operate in a second lighting mode; when the switch is in the third state, it is electrically disconnected from the integrated circuit and the integrated circuit drives the light source to operate in a third lighting mode; either the first lighting mode or the second lighting mode is configured to be an OFF mode in which the integrated circuit drives the light source to switch off; when the integrated circuit detects that the switch is disconnected from the integrated circuit after a state which corresponds to the OFF mode and is therefore transitioning to a subsequent state, it drives the light source to operate in the lighting mode of the subsequent state.