| 摘要 |
PROBLEM TO BE SOLVED: To provide a lighting device, a luminaire and lighting equipment that can make optical output uniform while suppressing disadvantages such as excessive inrush current, etc.SOLUTION: A lighting device (luminaire) makes a second LED array 2B light at all times within one period of an AC power source 5, thereby reducing light ripple more greatly as compared with prior arts. In the lighting device (luminaire), a third constant current unit 3C is configured to have a constant current circuit. Therefore, the lighting device (luminaire) has an advantage that inrush current flowing into a capacitor C1 can be suppressed.SELECTED DRAWING: Figure 1 |
