| 摘要 |
PURPOSE: A wall clock is provided to cause an optical illusion by an optical illusion pattern consisting of the same color with a back board, an hour hand, a minute hand, and a second hand without separate electronic components, thereby obtaining an effect in which a LED is applied. CONSTITUTION: A wall clock comprises a case(110), a movement part(130), an hour hand(141), a minute hand(142), indicators, an inner frame(160), and a transparent cover(170). A back board is comprised in the front surface of the case. The movement part is mounted in the rear surface of the case and comprises a rotary shaft penetrating the back board. The indicators are comprised in the hour hand and minute hand and have colors different from a color of the back board. The inner frame is joined to the front inner side of the case to obtain the operation space of the indicator. The transparent cover is fixed to the inner frame and comprises an optical illusion pattern same with the back board to cause the optical illusion in which the indicators rotate in a circumferential direction without driving the hour hand and minute hand. |
