Abstract: A domed surveillance camera capable of blocking scattered reflection and stray light. The domed surveillance camera may include an infrared camera module configured to include a lens, infrared lighting components disposed around the infrared camera module, and a domed cover configured to surround the infrared camera module and the infrared lighting components. Infrared shielding structure configured to block infrared rays from the infrared lighting components from being reflected by the domed cover and being incident on a lens is formed to cross the thickness of the domed cover within the domed cover. The surveillance camera can prevent the distortion of a captured image by blocking stray light incident on the lens due to scattered reflection.

Abstract: The present invention relates to an anion lamp having an LED as a light source, and an anion generator arranged in the anion lamp. The anion lamp comprises a main body 10 having a connecting socket terminal 11 formed at the top thereof and an open hole 12 formed at the bottom thereof; an LED module 20 installed such that an LED 21 is outwardly exposed from the main body 10 via the open hole 12 of the main body 10; a metal fiber 30 which penetrates through the center of the LED module 20 from the anion generator to be exposed outwardly and downwardly from the main body 10; and a lamp shade 40 attached to a lower end of the main body. The top of the lamp shade 40 has a ring 41. The lower end of the main body 10 has an outer circumferential surface on which a plurality of heat-dissipating holes 13 are in communication with the LED module 20.

Abstract: Disclosed herein is an AC negative ion and silver ion generator. The AC negative ion generator includes an AC power supply unit, an oscillation unit, a switching unit, a boosting unit, and an output unit. The AC power supply unit supplies an AC voltage required to operate the ion generator. The oscillation unit oscillates and generates an output pulse having a certain frequency when the voltage is supplied by the AC power supply unit. The switching unit performs a switching operation in response to an output frequency of the oscillation unit. The boosting unit boosts an AC voltage having a certain frequency, output through the switching unit, to a high AC voltage required to generate negative ions. The output unit transmits the high voltage to a discharge electrode placed at a negative ion generation unit.

Abstract: Disclosed herein is an AC negative ion generator. The AC negative ion generator includes an AC power supply unit, an oscillation unit, a switching unit, a boosting unit, and an output unit. The AC power supply unit supplies an AC voltage required to operate the ion generator. The oscillation unit oscillates and generates an output pulse having a certain frequency when the voltage is supplied by the AC power supply unit. The switching unit performs a switching operation in response to an output frequency of the oscillation unit. The boosting unit boosts an AC voltage having a certain frequency, output through the switching unit, to a high AC voltage required to generate negative ions. The output unit transmits the high voltage to a discharge electrode placed at a negative ion generation unit.