| 摘要 |
<p>PURPOSE:To make fade-in and fade-out with good feeling of performance. CONSTITUTION:The change in the illuminance of an incandescent lamp 2 in the period from the time, a fluorescent lamp 1 is lighted, to the time the fade-in is ended in the case the fluorescent lamp 1 and incandescent lamp 2 are allowed to make fade-in simultaneously, is made approx. identical to the illuminance change of the fluorescent lamp 1. The change in the illuminance of the incandescent lamp 2 in the period from the time, the fade-out is started in the case the two lamps 1, 2 are allowed to make fade-out simultaneously, till a point, of time before the time equivalent to the time required for the fluorescent lamp 1 to light up since the incandescent lamp 2 was put off, is made approx. identical to the illuminance change of the fluorescent lamp 1. The color in illumination is prevented from varying as much as practicable by making the illuminance changes of the two lamps 1, 2 as much as practicable, and therewith fade-in and fade-out are performed with good operational feeling.</p> |
