Fig. 2 (b) shows these selection panels. Additionally, four parameters are defined in blinking: color, blinking interval, transition, and rhythm. As shown in
Fig. 2(c), the blinking color parameter controls the color of LEDs with 24-bit RGB values. The blinking interval indicates the
period of time from lighting-on to lighting-out and vice versa. The user specifies the interval by pressing a button to set the period of “on”, and an image of a light on the panel replays the interval
(Fig. 2 (d)). This allows the user to express his/her desired lighting interval in an intuitive manner. The blinking transition was introduced to specify the pattern of change from lighting-on to lighting-out and vice versa, so that the lighting
changes 1) discretely (binary), 2) gradually or 3) continually “turning on”. Finally, the blinking rhythm controls the cycle
of lighting and lighting-out. By default, an LED blinks with a specific cycle; however, it can be changed, e.g., on, on, off, off, and on, by tapping on the line that indicates “on” and “off”. Thus, a user can express his/her idea for lighting control with four blinking patterns and four functional parameters.