Abstract: A projector includes an adjusting leg section configured to be capable of protruding/retracting outside/inside an exterior chassis and changing a tilt condition of the projector, an interlocking device that displaces based on the protruding/retracting movement of the adjusting leg section, a variable resistance device that has a resistance that varies based on displacement of the interlocking device, a voltage detection device that detects a voltage based on the resistance of the variable resistance device, a storage device that stores keystone distortion correction amount information, and a keystone distortion correction device that obtains a keystone distortion correction amount from the keystone distortion correction amount information based on the voltage detected by the voltage detection device, and that corrects the keystone distortion of the projection image using the keystone distortion correction amount.

Abstract: A projector includes a light source, a color separating optical system, liquid crystal panels, a cross dichroic prism, and a projection lens, in which an optical filter is disposed to reflect a predetermined spectral component in the light flux between a dichroic mirror and a dichroic mirror where an angle by which the light flux expands falls within 20° with respect to an illumination optical axis L of the light flux on an optical path from the light source device to a light flux-emitting surface of the projecting lens. Thus, carrying out spectrum correction can reduce or prevent the contrast degradation of the projected image. Furthermore, it allows the difference of an incident angle to the light flux-incident surface of the light flux to be smaller, thereby reducing color unevenness.

Abstract: A remote controller storage (26) is formed on an exterior case (2) of a projector (1) under connectors (5A) constituting an interface installed on a circuit board (5), the remote controller storage (26) having a storage body (261) for a remote controller (26A) to be accommodated and a pivotably-supported lid (262) covering the storage body (261), so that a dead space can be effectively utilized as the storage body 261 and the remote controller (26A) can be securely carried without hindering size reduction of the projector (1).

Abstract: A projector according to the present invention is capable of simplifying a shield structure, sufficiently avoiding electromagnetic interference and reducing size thereof by highly densely installing the components thereof, the projector having a power source block (31) having a power source board (31B) installed with a transformer, a converter for converting an output of the transformer etc., the power source board (31B) being accommodated in a case member (31A) composed of metal for shielding electromagnetic wave from the installed circuit components, where a lower shield (33) is disposed to cover the case member (31A), the lower shield (33) having a support portion (31C) projecting upward from four corners on the upper side thereof and a light source driving block fixing portion (31F) extending downward from a front portion thereof, the support portion (31C) supporting a control board (5), the light source driving block fixing portion (32) fixing a light source driving block (32).

Abstract: A projector includes a light source, a color separating optical system, liquid crystal panels, a cross dichroic prism, and a projection lens, in which an optical filter is disposed to reflect a predetermined spectral component in the light flux between a dichroic mirror and a dichroic mirror where an angle by which the light flux expands falls within 20° with respect to an illumination optical axis L of the light flux on an optical path from the light source device to a light flux-emitting surface of the projecting lens. Thus, carrying out spectrum correction can reduce or prevent the contrast degradation of the projected image. Furthermore, it allows the difference of an incident angle to the light flux-incident surface of the light flux to be smaller, thereby reducing color unevenness.

Abstract: A projection lens (46) is located at an end of an optical unit (4) of approximately planarly-viewed L-shape, the projection lens enlarging and projecting a color image combined by a cross dichroic prism of an optical device body and including a linearly-advancing barrel (46B) fixed to a head (49) formed on an optical component casing, a cam barrel (46C) provided with a lever (46A), zoom-magnification converting lenses, focus-adjusting lenses and fixed lens, the linearly-advancing barrel (46B) and the cam barrel (46C) being made of polycarbonate, where a control board is disposed above a projection lens (46) to planarly cover the projection lens (46).

Abstract: A light source is disposed at an end of an optical unit (4) formed approximately in planarly-viewed L-shape and an axial-flow fan (6A) is disposed so that suction surface thereof opposes the light source, where an exhaust duct (6B) connected with the axial-flow fan (6A) and extending toward a front side of a projector (1) along a side of a lower case is disposed on the exhaust side of the axial-flow fan (6A), so that the axial-flow fan (6A) is spaced apart from an exhaust hole formed on the front side of the projector (1) and the exhaust flow from the axial-flow fan (6A) becomes parallel to an image projecting direction of a projection lens.

Abstract: A structure for attaching a lamp cover (61) to an upper case (21), when a part (631C) of a fitting (631) is pressed downward by a pin member (P) to release engagement of the lamp cover (61) with the upper case (21). The lamp cover (61) is biased toward outside of the exterior case, so that the lamp cover (61) can be opened with one pressing action of with the pin member (P) and operation thereof can be facilitated.

Abstract: A centrifugal fan (50) is provided around the light source of the projector and an exhaust duct (51) is connected to the centrifugal fan with at least one of bent portion (52) for bending exhaust stream from the centrifugal fan being formed on the exhaust duct. Since the centrifugal fan for exhausting air can be disposed at a position remote from the exhaust hole, the noise generated from the projector can be reduced even when the size of the cooling fan is increased.

Abstract: A projector according to the present invention is capable of simplifying a shield structure, sufficiently avoiding electromagnetic interference and reducing size thereof by highly densely installing the components thereof, the projector having a power source block (31) having a power source board (31B) installed with a transformer, a converter for converting an output of the transformer etc., the power source board (31B) being accommodated in a case member (31A) composed of metal for shielding electromagnetic wave from the installed circuit components, where a lower shield (33) is disposed to cover the case member (31A), the lower shield (33) having a support portion (31C) projecting upward from four corners on the upper side thereof and a light source driving block fixing portion (31F) extending downward from a front portion thereof, the support portion (31C) supporting a control board (5), the light source driving block fixing portion (32) fixing a light source driving block (32).

Abstract: A remote controller storage (26) is formed on an exterior case (2) of a projector (1) under connectors (5A) constituting an interface installed on a circuit board (5), the remote controller storage (26) having a storage body (261) for a remote controller (26A) to be accommodated and a pivotably-supported lid (262) covering the storage body (261), so that a dead space can be effectively utilized as the storage body 261 and the remote controller (26A) can be securely carried without hindering size reduction of the projector (1).

Abstract: A projection lens (46) is located at an end of an optical unit (4) of approximately planarly-viewed L-shape, the projection lens enlarging and projecting a color image combined by a cross dichroic prism of an optical device body and including a linearly-advancing barrel (46B) fixed to a head (49) formed on an optical component casing, a cam barrel (46C) provided with a lever (46A), zoom-magnification converting lenses, focus-adjusting lenses and fixed lens, the linearly-advancing barrel (46B) and the cam barrel (46C) being made of polycarbonate, where a control board is disposed above a projection lens (46) to planarly cover the projection lens (46).

Abstract: A light source is disposed at an end of an optical unit (4) formed approximately in planarly-viewed L-shape and an axial-flow fan (6A) is disposed so that suction surface thereof opposes the light source, where an exhaust duct (6B) connected with the axial-flow fan (6A) and extending toward a front side of a projector (1) along a side of a lower case is disposed on the exhaust side of the axial-flow fan (6A), so that the axial-flow fan (6A) is spaced apart from an exhaust hole formed on the front side of the projector (1) and the exhaust flow from the axial-flow fan (6A) becomes parallel to an image projecting direction of a projection lens.