| 摘要 |
A case for displaying pictures to an audience with the pictures being selectively illuminated at the discretion of the operator for individually bringing them to the attention of the audience. The case is provided with a panel having a plurality of lamps for illuminating pictures contained on a picture panel that is positioned in front of the lights. A plurality of switches are provided for controlling the operation of the lamps with the number of switches being equal to the number of lamps on the panel so that each individual lamp can be operated by its associated switch. However, the different picture panels have various numbers of pictures in a variety of sizes and arrangements so that the individual panels require the operation of different lamps for illuminating the pictures. The control circuit is arranged to recognize these panels and automatically adjust so that the switches are always operable in sequence beginning with the first switch for sequentially illuminating the pictures on the panel even though only a portion of the switches are required to illuminate the pictures on that particular panel.
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