| 摘要 |
The invention refers to a method and apparatus of spot scan image in which rotating spots are on different radii of the same center of a circle and the brightness of the rotating spot synchronistically corresponds to the brightness of respective pixel of picture so as to form a picture. The apparatus includes spots, a spot brightness controller and a spot rotational scanner. A spot rotational scanner has a motor, a shaft and a turntable which is fixed on the shaft. A spot brightness controller has a spot brightness control circuit and rotating transformers. The spot and spot brightness control circuit are fixed on the turntable. A driver circuit of the spot brightness control circuit and a turntable position sensor are connected with picture storage and processing circuit. |
