Screen, projector, and image display device
View Patent ↗A screen includes; a plurality of layers including a diffusion layer that diffuses incident light; an elastic member that movably supports the diffusion layer with respect to an arbitrary holding part; and a driving unit that moves the diffusion layer in a direction perpendicular to an optical axis of light that is incident to the diffusion layer.
1. A screen comprising:
a diffusion layer that diffuses incident light;
an elastic member that movably supports the diffusion layer with respect to a holding part;
a driving unit that moves the diffusion layer in a direction perpendicular to an optical axis of light that is incident to the diffusion layer, wherein:
the elastic member includes at least one expandable member that links the holding part and the diffusion layer;
the diffusion layer is hung on the holding part via the expandable member;
the diffusion layer oscillates in either a circular path, an elliptical path, or an 8-shaped path;
the diffusion layer and the elastic member are rectangular;
the elastic member is arranged on a top face side of the diffusion layer; and
the driving unit is arranged on a bottom face side of the diffusion layer.
2. The screen according to claim 1 , wherein:
the driving unit is a solenoid.
3. The screen according to claim 2 , wherein:
the solenoid applies a force that thrusts a bottom face of the diffusion layer upward at an angle of 45° with respect to a horizontal direction.
4. The screen according to claim 3 , wherein:
the solenoid drives the diffusion layer intermittently.
5. The screen according to claim 1 , wherein
the driving unit is arranged on either a right side or a left side of the bottom face of the diffusion layer.