Patent ID: 6793347
Filing Date: 2004-09-21
Classification: G03B

Abstract:
A video projector comprising:a light source; a light reflecting mirror device for reflecting light emitted from the light source; a light reflecting mirror device drive circuit for driving the light reflecting mirror device on the basis of a bit digital video signal; a cabinet which is shaped like a flat and substantially rectangular cube, and in which the light source, the light reflecting mirror device and the light reflecting mirror device drive circuit are disposed, the cabinet having front, bottom, top, left side and right side surfaces; a projection lens which is provided in the front surface of the cabinet so as to be located eccentrically on either of left or right side of the front surface and by which a video image of reflected light formed by the light reflecting mirror device is enlarged and projected onto a screen; adjusters provided in the bottom and top surfaces of the cabinet and located on left and right sides of the bottom and top surfaces close to the front surface of the cabinet for adjusting inclination and/or height of the projector when the projector is placed on a table, the adjusters being supported by shafts perpendicular to the front surface so as to be rotatable in an angular range of at least 90Â°, the adjusters being configured so that postures of the adjusters are retained in accordance with placement of the cabinet in such a manner that the cabinet is placed horizontally when the adjusters are postured to be perpendicular to the bottom and top surfaces of the cabinet and the cabinet is placed vertically when the adjusters are postured to be perpendicular to the left and right side surfaces of the cabinet; and a horizontal/vertical placement change-over switch for supplying a signal to the light reflecting mirror device drive circuit in accordance with the placement of the projector in such a manner that the signal is generated as a signal for rotating a video image formed on the basis of the bit digital video signal left or right by 90Â° when horizontal placement of the cabinet needs to be changed over to vertical placement, and that the signal is generated as a signal for turning the video image upside down when the cabinet placed horizontally needs to be turned upside down.