Abstract: A light detection device includes a substrate, a buffer layer disposed on the substrate, a first band gap change layer disposed on a portion of the buffer layer, a light absorption layer disposed on the first band gap change layer, a Schottky layer disposed on a portion of the light absorption layer, and a first electrode layer disposed on a portion of the Schottky layer.

Abstract: The present invention relates to an air cleaning apparatus comprising a UVLED, which can efficiently clean air flowing in tubes by an effective combination of the UVLED and a photocatalyst and can effectively clean air flowing in a duct by enhancing the cleaning function or increasing the number of cleaning steps when the concentration of harmful substances increases. The air cleaning apparatus includes: a case comprising an inlet configured to introduce air, an outlet configured to discharge air, and a duct disposed between the air inlet and the air outlet; a photocatalyst unit disposed in the duct; and a UVLED module disposed in the duct and including a plurality of first UVLEDs arranged to irradiate UV light from the side of the inlet to the side of the outlet.

Abstract: A method of forming a light detection device includes forming a non-porous layer on a substrate, forming a light absorption layer on the non-porous layer, the light absorption layer including pores formed in a surface thereof, forming a Schottky layer on the surface of the light absorption layer and in the pores thereof, and forming a first electrode layer on the Schottky layer.

Abstract: A light detection device includes a substrate, a buffer layer disposed on the substrate, a first band gap change layer disposed on a portion of the buffer layer, a light absorption layer disposed on the first band gap change layer, a Schottky layer disposed on a portion of the light absorption layer, and a first electrode layer disposed on a portion of the Schottky layer.

Abstract: Exemplary embodiments of the present invention relates to a light detection device including a substrate, a non-porous layer disposed on the substrate, a light absorption layer disposed on the non-porous layer, the light absorption layer including pores formed in a surface thereof, a Schottky layer disposed on the surface of the light absorption layer and in the pores, and a first electrode layer disposed on the Schottky layer.

Abstract: A photo detection package including a package body configured to have an upward opened groove unit formed in the package body, a photo detection device mounted on a bottom surface of the groove unit and electrically connected externally, and a Light-Emitting Diode (LED) mounted on an inner surface of the groove unit that is formed of an inclined surface on a periphery of the bottom surface and electrically connected externally.

Abstract: A photo detection package including a package body configured to have an upward opened groove unit formed in the package body, a photo detection device mounted on a bottom surface of the groove unit and electrically connected externally, and a Light-Emitting Diode (LED) mounted on an inner surface of the groove unit that is formed of an inclined surface on a periphery of the bottom surface and electrically connected externally.

Abstract: Provided is an apparatus for cleaning a fluid using an ultraviolet light-emitting diode. The apparatus includes an outer case, a fluid cleaning filter disposed in the outer case and filters the fluid introduced, a photocatalyst coated on a surface of the fluid cleaning filter, and a first light source unit mounted on the outer case to face a rear surface of the fluid cleaning filter in a direction in which the fluid is introduced, and emits light having a plurality of wavelength bands toward the rear surface of the fluid cleaning filter. Since the apparatus may have high sterilization and deodorization effects by emitting light having a plurality of wavelength bands and may improve filter reuse efficiency using a filter on which a photocatalyst is coated, the filter may be semi-permanently used and fluid cleaning efficiency may be improved.

Abstract: Provided is a hormesis inducing device for fruits and vegetables that includes: a control unit which determines the strength of stimulus according to biological information about the fruits and vegetables that are harvested or growing and which controls at least one from among a kind of light, a quantity of the light, an irradiation time of the light, a wavelength of the light, and a temperature based on the determined strength of the stimulus; and a stimulus generation unit which applies light to the fruits and the vegetables based on the determined strength of the stimulus or adjusts and applies the temperature. Thereby, individually optimized hormesis inducing conditions can be provided for various kinds of vegetables and fruits.

Abstract: Exemplary embodiments of the present invention relate to a photo detection device including a substrate, a first light absorption layer disposed on the substrate, a second light absorption layer disposed in a first region on the first light absorption layer, a third light absorption layer disposed in a second region on the second light absorption layer, and a first electrode layer disposed on each of the first, the second, and the third light absorption layers.

Abstract: The present invention relates to a portable water purification system by means of UV LEDs. Provided according to the present invention is a portable water purification system by means of UV LEDs comprising: a support member; a plurality of LEDs mounted on the surface of the support member; a solid filter provided with a through-path into which the support member is inserted; and a cover, attached to one end of the solid filter, for sealing the through-path of the solid filter.

Abstract: A plant cultivation apparatus including: a guide rail disposed above a cultivation bed and extending along the length direction of the cultivation bed; a movable unit configured to move along the guide rail; an arm unit having a first end that is coupled to the movable unit, and a second end that is telescopically extendable from the movable unit toward the cultivation bed; and a UV radiation unit coupled to the second end of the arm unit and configured to irradiate the cultivation bed with a set amount of UV light.

Abstract: An air purifier includes a case having an air inlet and an air outlet, a fan disposed adjacent the air inlet, a UV LED unit and a filter unit arranged over the fan along a flow path of air, and a fluid control structure disposed between the fan and the filter unit.

Abstract: A sterilizer may include: a first pipe having an inner wall with a light reflecting property; a second pipe disposed in the first pipe so as to pass fluid therethrough and formed of a light transmitting material; and a plurality of UV LEDs arranged on the inner wall of the first pipe and configured to irradiate sterilization UV light onto the fluid.

Abstract: An air purifying apparatus according to an embodiment includes a body having first and second conduits through which a flow of air is generated from an air inlet to an air outlet, an ultraviolet light emitting diode part and a first filter part disposed within the first conduit, and a second filter part disposed within the second conduit.

Abstract: An air conditioner including a body having an evaporator for heat-exchanging air flowing in the body, and an air purifying module coupled to the body. The air purifying module may have a light emitting diode part disposed along a flow path of the air to provide ultraviolet rays, and a filter part disposed adjacent to the light emitting diode part.

Abstract: A water purifier that includes a housing having an inlet and an outlet opposing each other, a filter disposed in the housing and connected to the inlet to reduce the flow rate of water introduced into the filter from the inlet, a separator disposed in the housing to store water discharged from the filter, a supply conduit disposed in the housing and connected to a central portion of the separator to provide a path through which the water in the separator is drained, and an ultraviolet light emitting diode (UV LED) module disposed in the housing to irradiate UV rays toward the water stored in the separator.

Abstract: A storage apparatus according to an embodiment may include a body having a storage space of storage products and an air purifying module coupled to the body. The air purifying module may include a light emitting diode part disposed along a passage of air to provide ultraviolet light, and a filter part disposed adjacent to the light emitting diode part.

Abstract: A plant cultivation apparatus including: a guide rail disposed above a cultivation bed and extending along the length direction of the cultivation bed; a movable unit configured to move along the guide rail; an arm unit having a first end that is coupled to the movable unit, and a second end that is telescopically extendable from the movable unit toward the cultivation bed; and a UV radiation unit coupled to the second end of the arm unit and configured to irradiate the cultivation bed with a set amount of UV light.

Abstract: Exemplary embodiments of the present invention relate to a photo detection device including a substrate, a first light absorption layer disposed on the substrate, a second light absorption layer disposed in a first region on the first light absorption layer, a third light absorption layer disposed in a second region on the second light absorption layer, and a first electrode layer disposed on each of the first, the second, and the third light absorption layers.