| 摘要 |
PURPOSE:To perform stably high-speed recording by using an optical controller which moves fine particles by varying partially the temperature of liquid where fine particles are present. CONSTITUTION:The optical controller 70 moves a liquid high-temperature part in one direction 76 by varying partially the temperature of liquid while fine particles 75 are put in the liquid to move the fine particles 75. Luminous flux from a light source 71 is made incident on the fine particle movement paths of this optical controller 70 and luminous flux projected from this optical controller 70 is projected on a photosensitive body surface 74. In such a case, the moving speed of the projected image 77 on the photosensitive body surface 74 by the fine particle movement is synchronized with the moving speed of the photosensitive body surface 74. |
