| 摘要 |
PURPOSE: To emit a desired white colored light exhibiting excellent mixed coloring performance for obtaining the white color by simultaneously lighting LED chips in three primary colors. CONSTITUTION: Blue LED chip B is arranged in the center of an LED matrix 20 and eight each of LED chips R, G, B are also arranged adjacently to the outer periphery of the same. Blue LED chips B are arranged at four corners thereof besides, on the four sides thereof, two each of red LED chips R and two each of green LED chips G are arranged to be point-symmetrical to the center thereof. Furthermore, 16 each of LED chips R, G, B are arranged adjacently to the outer periphery thereof. Besides, on the four corners thereof, green LED chips G are arranged and Blue, green and red LED chips B, G, R while on respective four sides thereof, blue, green and red LED chips B, G, R are arranged clockwise to be continuous in this order. |
