| 摘要 |
An electromechanical digital indicator for displaying numerical information is disclosed, in which the angular movements of seven movable segments, combined with the action of a block in the shape of an eight and made of a transparent and light-channelling plastics material, acts in such a way as to display any figure at choice from zero to nine in solid lines rather than in segmental form, contrary to what occurs with the conventional display devices. Fluorescent layers on the bottom wall of the block and other expedient render the display visible under any conditions of direct or indirect lighting and also in the darkness of the night. Internal illumination means can be provided in the inside of the indicator box, that which could not be obtained heretofore with the electromechanical digital display appliances. |
