| 摘要 |
PROBLEM TO BE SOLVED: To provide a time information display device for overhead projector which can perform prudential time management when an overhead projector is in use, can easily be constituted in a small size, and eliminates the need to have another power source to be connected. SOLUTION: At a part of a mount table for a projection sheet, the time information display means is arranged which consists of a transmission type liquid crystal panel part 21 which displays time information, a driving circuit which drives the transmission type liquid crystal panel part 21, and a solar battery 22 which receives the light of a projection optical system and generates and supplies driving electric power to the driving circuit, and time information from the transmission type liquid crystal panel part 21 is projected and displayed by the projection optical system together with the entry contents of the projection sheet. The user of the overhead projector can view the time information together with the entry contents of the projection sheet and the time management becomes perfect. |
