| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce the cost of a light control operating device and miniaturize it by employing a required minimum structure for a backup system, in the light control operating device equipped with the backup system used when abnormality occurs in a control part storing data of light control signals for every scene. <P>SOLUTION: Only main light control data are stored in a sub-storage device 12 of a backup portion 10, the backup portion 10 is operated when abnormality occurs in a control part 6, and following fader part 3 operation, illumination performance by light control is performed by utilizing main data stored in the sub-storage device 12. Since data stored in the backup portion 10 are the minimum data required for illumination performance, the backup portion 10 can be constituted to a required minimum one, and even if abnormality occurs in the control part, required minimum illumination performance can be performed by operating the same fader. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
