Abstract: A projection device includes a projection unit including a display element in which pixel lines each formed by pixels arranged in a first direction are arranged in a second direction and an optical system that projects light emitted from the display element and projecting an image based on input image data, a first correction unit for correcting a scale of each line data of the image data that corresponds to each of the pixel lines, a second correction unit for correcting a second-direction scale of each pixel data of the image data after the correction performed by the first correction unit, and an image cutting-out unit for cutting out image data of an area, which is projected from the projection unit, of the image data after the correction performed by the second correction unit and input the image data of the area to the projection unit.

Abstract: A projector includes, a projecting unit that converts image data into light and projects the light at a predetermined angle of view, a projecting direction changing unit that changes the projecting direction of the projecting unit from a first projecting direction to a second projecting direction, a projection angle derivation unit that derives a projection angle between the first projecting direction and a projecting direction after changed, and an image cutting out unit that generates cut-out image data that a part of a region of an image of the inputted image data is cut out based on the angle of view and the projection angle as image data to be projected, when the projecting unit projects the image of the inputted image data stored on the storage unit across the first projecting direction and the second projecting direction.

Abstract: A projection device includes a correction unit that corrects a trapezoidal distortion of a projection image projected onto a projection medium in accordance with a projection angle derived by a projection angle deriving unit, and the correction unit sets a correction amount for the trapezoidal distortion of a case where the derived projection angle is changed within a range larger than a first predetermined angle determined based on the projection direction toward a boundary between a first projection face and a second projection face and smaller than a second predetermined angle determined based on the projection direction toward the boundary to be the correction amount for the trapezoidal distortion at one of the first predetermined angle and the second predetermined angle or less.

Abstract: A dynamic iris controller includes: a diaphragm and video-image controller including a video-image analyzer analyzing a picture signal, an association setting unit setting a diaphragm stop of a diaphragm mechanism, a color balance correction value, and a lightness correction value according to analysis data analyzed in the video-image analyzer, and a black period controller setting a black period in the picture signal according to a predetermined black time length; a diaphragm driver outputting a drive signal to the diaphragm mechanism so as to set the diaphragm stop of the diaphragm mechanism to be fully closed for the black period set by the black period controller and to set the diaphragm stop to have a value set by the association setting unit for the other period; and a video-image processor correcting color balance and lightness of the picture signal using the correction data set in the association setting unit.

Abstract: A projection device includes a projection unit including a display element in which pixel lines each formed by pixels arranged in a first direction are arranged in a second direction and an optical system that projects light emitted from the display element and projecting an image based on input image data, a first correction unit for correcting a scale of each line data of the image data that corresponds to each of the pixel lines, a second correction unit for correcting a second-direction scale of each pixel data of the image data after the correction performed by the first correction unit, and an image cutting-out unit for cutting out image data of an area, which is projected from the projection unit, of the image data after the correction performed by the second correction unit and input the image data of the area to the projection unit.

Abstract: A projection device converts input image data into light and includes a correction control unit that calculates a correction amount used for eliminating a geometric distortion occurring in a projection image according to a projection direction based on a projection angle and a view angle and determines a cut out range including also an area other than an area of the image data after the geometric distortion correction estimated according to the correction amount, and a correction unit that generates cut out image data acquired by cutting out an area of the cut out range from the input image data and performs a geometric distortion correction for the cut out image data based on the correction amount.

Abstract: A projection device includes a correction unit that corrects a trapezoidal distortion of a projection image projected onto a projection medium in accordance with a projection angle derived by a projection angle deriving unit, and the correction unit sets a correction amount for the trapezoidal distortion of a case where the derived projection angle is changed within a range larger than a first predetermined angle determined based on the projection direction toward a boundary between a first projection face and a second projection face and smaller than a second predetermined angle determined based on the projection direction toward the boundary to be the correction amount for the trapezoidal distortion at one of the first predetermined angle and the second predetermined angle or less.

Abstract: A projector includes, a projecting unit that converts image data into light and projects the light at a predetermined angle of view, a projecting direction changing unit that changes the projecting direction of the projecting unit from a first projecting direction to a second projecting direction, a projection angle derivation unit that derives a projection angle between the first projecting direction and a projecting direction after changed, and an image cutting out unit that generates cut-out image data that a part of a region of an image of the inputted image data is cut out based on the angle of view and the projection angle as image data to be projected, when the projecting unit projects the image of the inputted image data stored on the storage unit across the first projecting direction and the second projecting direction.

Abstract: A screen assembly and a rear-projection type graphic display device are provided to block overscanned light Lo projected outside a fresnel lens screen. The screen assembly 20A includes the fresnel lens screen 21, a screen retainer 22 and a light blocking member 23. The fresnel lens screen 21 forms an image on the side of a front surface 21b by image light Le incoming through a back surface 21a. The screen retainer 22 has a back surface 22a whose area is larger than the back surface 21a and the front surface 21b and which is opposed to the front surface 21b to hold it, and a front surface 22b located on opposite side of the back surface 22a to allow an image formed by the image light incoming through the back surface 21a to be visible through the front surface 22b. The screen retainer 22 has an optical transparency. The light blocking member 23 is arranged so as to surround respective side surfaces of the screen 21 in the form of a frame.

Abstract: A projection type display device includes a image displaying element having image display areas for displaying a plurality of images respectively, a projection optical system having an emitting part for emitting projection light flux to the image display areas of the image displaying element, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas of the image displaying element. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.

Abstract: Stereoscopic or 3D glasses include a half-wave phase difference plate, a first polarization-converting optical system, and a second polarization-converting optical system. The half-wave phase difference plate is movable between a used position and an unused position. The first polarization-converting optical system follows the half-wave phase difference plate when the half-wave phase difference plate is in its used position. The first polarization-converting optical system is uncovered when the half-wave phase difference plate is in its unused position. When the half-wave phase difference plate is in its used position, the glasses operate in a two-dimensionally viewing mode. When the half-wave phase difference plate is in its unused position, the glasses operate in a three-dimensionally viewing mode.

Abstract: A screen assembly and a rear-projection type graphic display device are provided to block overscanned light Lo projected outside a fresnel lens screen. The screen assembly 20A includes the fresnel lens screen 21, a screen retainer 22 and a light blocking member 23. The fresnel lens screen 21 forms an image on the side of a front surface 21b by image light Le incoming through a back surface 21a. The screen retainer 22 has a back surface 22a whose area is larger than the back surface 21a and the front surface 21b and which is opposed to the front surface 21b to hold it, and a front surface 22b located on opposite side of the back surface 22a to allow an image formed by the image light incoming through the back surface 21a to be visible through the front surface 22b. The screen retainer 22 has an optical transparency. The light blocking member 23 is arranged so as to surround respective side surfaces of the screen 21 in the form of a frame.

Abstract: A projection type display device includes a image displaying element 20 having image display areas 20a, 20b for displaying a plurality of images respectively, a projection optical system 30A having an emitting part for emitting projection light flux to the image display areas 20a, 20b of the image displaying element 20, and a plurality of screens for displaying projected images by the projection light flux transmitted through the image display areas 20a, 20b of the image displaying element 20. In the projection type display device, the image display areas are formed in respective areas in the image displaying element independent of each other. The projected images on the screens correspond to the image display areas, respectively. Each of the screens is arranged in such a position that the each of the screens is not overlapped with shadows of the other screens which are produced since the projection light flux is emitted from the emitting part to the screens.