Abstract: An interface device for controlling light sources includes a target region; and a controller that associates a preset with an illumination region, and controls a light source in the illumination region when an indicator associated with the preset and illumination region is moved into the target region. The controller associates the preset with the illumination region when the preset is moved to an area of the interface device associated with the illumination region. The controller is further configured to change light attributes of light emitted from the light source when the indicator is moved across the target region, such as providing maximum intensity when the indicator is at the center of the target region. The light attributes include intensity, color, hue, saturation, beam direction and/or beam width of the light.

Abstract: An interface device for controlling light sources includes a target region; and a controller that associates a preset with an illumination region, and controls a light source in the illumination region when an indicator associated with the preset and illumination region is moved into the target region. The controller associates the preset with the illumination region when the preset is moved to an area of the interface device associated with the illumination region. The controller is further configured to change light attributes of light emitted from the light source when the indicator is moved across the target region, such as providing maximum intensity when the indicator is at the center of the target region. The light attributes include intensity, color, hue, saturation, beam direction and/or beam width of the light.

Abstract: A control (410) for adjusting (420) the color output of a white light (430) provides an interface (210, 220, 301) that does not refer to, or depend upon an understanding of, color-temperature. The user interface control (210, 220, 301) uses the analogy (260, 270) of the light produced on cloudy days and the light produced on sunny days to distinguish between a low color-temperature output and a high color-temperature output. Using this cloudy-sunny description (260, 270) of the range of control (155, 255) of the light output, the terms “color” or “color-temperature” need not be introduced in the description of the output of a “white” light source (430).