| 摘要 |
PROBLEM TO BE SOLVED: To provide a light shielding region control louver that controls the irradiation direction by installing a louver composed of two rotatable blade bodies rotatably in a globe illumination base of a luminaire. SOLUTION: An internal louver 10 used for a spherical globe illumination 1 is composed of blade bodies 20 installed on a circular plate-like base 4 of a globe 2 rotatably, posts 30 of the blade bodies 20, a light blacking shade 40 mounted on the posts 30 and two blade bodies 20 are attached to each of the posts 30 rotatably in the horizontal direction. Each of the blade bodies 20 is a rectangular plate body and is so made as to form a shading condition by being joined to the tip of a nearby plate body. In addition, the shape of the blade bodies 20 is so formed into a desired shape such as a flower or a butterfly as to have a size in a range not to bring it into contact with the inside wall of the globe 2. |
