| 摘要 |
PURPOSE:To form a normal projection image on a projection screen by operating plural oscillation supporting means to incline an original placing plate and a focusing optical lens properly. CONSTITUTION:The original placing plate 22 is supported on the upper part of a base plate 21 of a projector by plural drawing hinges 23 so as to be inclined in two directions with respect to a surface intersected with an optical axis at right angles. A strut 24 is formed on the side part of the base plate 21 and a projecting device 25 is formed on the upper part of the strut 24. A bending oscillation member 26 to which a lens fitting board 28 mounting the focusing optical lens 27 is fitted is fixed on the lower end of the projecting device 25. The focusing optical lens 27 can be held so as to be inclined in two directions with respect to the surface intersected with the optical axis 29 at right angles by bending the bending oscillation member 26 properly. |
