Abstract: A flashlight improves the intensity of light in the large scale by using a single LED and a reflection mirror, thereby simplifying the structure and reducing the manufacturing cost.

Abstract: A flashlight includes a conductive case constructed and arranged for incorporating a power supply including batteries, a head part coupled with the case via a bulb, and a switch assembly mounted in the case for turning the power supply on and off. The switch assembly includes a circuit board, a switch button at an edge of the circuit board, a display lamp for indicating amount of consumption amount of the batteries, a negative terminal and a spring fixed at one end thereof to the circuit board by soldering for connection to a negative battery terminal, and which contacts at an opposite end thereof a bottom end of the bulb. The switch is fixed to the case with a screw passing through a hole in the case such that the screw contacts the negative terminal, the negative terminal protruding from the switch assembly in a longitudinal direction at an upper end of the switch assembly, so that a negative current is transmitted to the spring via the conductive case, the screw and the negative terminal.

Abstract: A flashlight in which a switch main body may be easily assembled by fitting parts for a top surface of the switch main body to be pushed upwardly for automatically and closely contacting an inside of the flashlight without using any additional element, and a lens is closely fixed to a reflection mirror of a head part so that the vibration may be prevented and the waterproof effect may be obtained, thereby improving the productivity and the reliability of the products. In the flashlight, a switch cover of the switch main body is integrally formed with a semicircular insertion plate, an upper body is formed with cut parts at both sides for matching an insertion plate of the switch main body with the cut parts, so that the insertion plate is inserted along the cut parts as a force is applied to the insertion plate, thereby simply assembling the switch main body into the flashlight.

Abstract: A flashlight in which a switch main body may be easily assembled by fitting parts for a top surface of the switch main body to be pushed upwardly for automatically and closely contacting an inside of the flashlight without using any additional element, and a lens is closely fixed to a reflection mirror of a head part so that the vibration may be prevented and the waterproof effect may be obtained, thereby improving the productivity and the reliability of the products. In the flashlight, a switch cover of the switch main body is integrally formed with a semicircular insertion plate, an upper body is formed with cut parts at both sides for matching an insertion plate of the switch main body with the cut parts, so that the insertion plate is inserted along the cut parts as a force is applied to the insertion plate, thereby simply assembling the switch main body into the flashlight.

Abstract: A flashlight for improving the assembling of a switch by directly connecting respective parts to a printed circuit board in a switch is provided, in which the switch is fixed in the case by a screw and the screw comes into contact with a negative terminal which is protruded long in the traverse direction at an upper end of the switch for transmitting a negative current to a spring via the screw and the conductive metal case, and a bulb is applied with a fluorescent substance to a predetermined portion for the convenience when finding out the flashlight in the nighttime.