| 摘要 |
A light diffusion adjustment device for a LED lamp according to the present invention comprises: a body installed on a support or an indoor ceiling; an LED module coupled to a lower side of the body and on which an LED is mounted; a diffusion cover coupled to the lower side of the body and accommodating the LED module to diffuse light emitted from the LED to the outside; a ring-shaped coupling ring in which the diffusion cover is mounted at an inner diameter and which is coupled to a lower side of the body; a converter connected to the LED module to supply electric power to the LED; a light diffusion adjustment device configured flexibly. The light diffusion adjustment device comprises: a fixed tube detachably or integrally disposed on a lower surface of the body, the diffusion cover, or the coupling ring and protruding downward; an elongated tube vertically movable within the fixed tube; and an adjustment tube vertically movable within the elongated tube. An irradiation area of light emitted from the LED module can be adjusted according to an elongation length of the light diffusion adjustment device. A spotlight for a small area is possible or a diffuse lighting for a large area is possible. The light diffusion adjustment device can be used as a general-purpose LED lamp. The elongated tube can be securely disposed in the fixing tube, and the adjustment tube can be securely disposed in the elongated tube. |
