| 摘要 |
PROBLEM TO BE SOLVED: To prevent a misoperation of the device by automatically switching the light emitting control of the display light source, which illuminates the display of a display section based on the illuminance environment of the installation place of the device. SOLUTION: A photosensor I 11 detects the brightness of the place, where the device is installed, i.e., the illuminance environment of the device. A CPU 21 makes a judgement on the detection result. If the illuminance environment is less than 50lx, for example, an LED13 is automatically put into the light emitting control of a darkroom control. If the environment is more than 50lx, the LED13 is automatically switched to the light emitting control of a bright room control. In other words, the LED13 is set to the brightness, in which photosensitive material is not affected and an operator confirms the display in a darkroom, in case of a darkroom control by an LED driver 22. In case of a bright room control, the LED13 is automatically switched to the brightness so that the operator surely confirms the display in the room. Thus, an inadvertent exposure of the photosensitive material is prevented. |
