Projector Device, Portable Telephone and Camera

A projector device, comprising:

• a body portion that has a construction to be folded around a hinge unit as a center and comprises a first portion and a second portion which are linked by the hinge unit;
• a detection device that detects a folding angle of the body portion;
• a projection image generation device that projects an image upon a projection surface and generates a projection image of the image, whose projection direction is fixed with respect to the first portion;
• and
• a trapezoidal compensation device that compensates trapezoidal deformation of the projection image created according to an angle between the projection direction of the projection image generation device and the projection surface, based upon the folding angle which is detected by the detection device.

A projector device, comprising:

• a body portion that comprises a first portion which has a construction to be rotated around a predetermined rotation shaft as a center and a second portion which is linked to the first portion;
• a detection device that detects a rotational angle of the first portion with respect to a predetermined reference position;
• a projection image generation device that projects an image upon a projection surface and generates a projection image of the image, whose projection direction is fixed with respect to the first portion;
• and
• a trapezoidal compensation device that compensates trapezoidal deformation of the projection image created according to an angle between the projection direction of the projection image generation device and the projection surface, based upon the rotational angle which is detected by the detection device.