Abstract: A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.

Abstract: A projection display device includes a light source; an optical system which modulates light from the light source, and emits the modulated light; a projecting portion which enlarges and projects the light emitted from the optical system; a cabinet which houses the light source, the optical system, and the projecting portion; an opening which is formed in one surface of the cabinet to allow mounting or dismounting of an optical component constituting the optical system, or the light source; a cover which covers the opening; and a holding portion which holds the cover in such a manner that the cover is allowed to slide in a direction along the one surface.

Abstract: A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.

Abstract: A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.

Abstract: A projection display device accommodates, in a main body cabinet, a projection lens section to which light modulated by a light modulating element is entered, and a mirror section that reflects light transmitted through the projection lens section and directs the light to a projection plane. When the main body cabinet is mounted on a mounting plane so that the light transmitted through the projection lens section may get away from the mounting plane, a holding member which holds the main body cabinet in a upright state with regard to the mounting plane is mounted on the main body cabinet.

Abstract: A member to be held is held in an external cabinet having a combination of a first cabinet and a second cabinet. A first supporting section is provided in the first cabinet and a second supporting section is provided in the second cabinet. A section to be sandwiched is provided in the member to be held, and the member to be held is held in the external cabinet by sandwiching this section to be sandwiched by the first supporting section and the second supporting section.

Abstract: A projection display device includes a light source; an optical system which modulates light from the light source, and emits the modulated light; a projecting portion which enlarges and projects the light emitted from the optical system; a cabinet which houses the light source, the optical system, and the projecting portion; an opening which is formed in one surface of the cabinet to allow mounting or dismounting of an optical component constituting the optical system, or the light source; a cover which covers the opening; and a holding portion which holds the cover in such a manner that the cover is allowed to slide in a direction along the one surface.

Abstract: A projection display device comprises a main body cabinet, a projection lens section to which light modulated by a light modulating element entered, and a mirror section for reflecting the light emitted from the projection lens section to a projection plane. A level difference depending on an arrangement shift of the projection lens section and the mirror section is formed on a second side surface facing a first side surface having light projection port of the main body cabinet. Furthermore, the projection display device comprises a level difference correction section for directing the light from the mirror section in a desired direction by correcting the level difference, when the main body cabinet is planed on a plane to be placed, the second side surface facing the plane to be placed.

Abstract: A light source device (18) includes a light source (1) constructed by a light emitter (1a) surrounded by a reflector (2); and a supporting member (20) for holding the reflector (2), and passages of cooling air are formed above and below the reflector (2). First and second openings (21b) and (21a) as passages of cooling air are opened in upper and lower portions, respectively, of the reflector (2). Near the opening (21a) on the lower side, a wind direction switching member (23) is disposed on the supporting member (20). The wind direction switching member (23) makes cooling air from the opening (21a) flow upward to a side of the light emitter (1a) in a state where the supporting member (20) is placed on a desk, and makes the cooling air flow directly to an upper portion of the light emitter (1a) via the opening (21a) in a state where the supporting member (20) is hung from a ceiling.

Abstract: A member to be held is held in an external cabinet having a combination of a first cabinet and a second cabinet. A first supporting section is provided in the first cabinet and a second supporting section is provided in the second cabinet. A section to be sandwiched is provided in the member to be held, and the member to be held is held in the external cabinet by sandwiching this section to be sandwiched by the first supporting section and the second supporting section.

Abstract: A projection display device accommodates, in a main body cabinet, a projection lens section to which light modulated by a light modulating element is entered, and a mirror section that reflects light transmitted through the projection lens section and directs the light to a projection plane. When the main body cabinet is mounted on a mounting plane so that the light transmitted through the projection lens section may get away from the mounting plane, a holding member which holds the main body cabinet in a upright state with regard to the mounting plane is mounted on the main body cabinet.

Abstract: A projection display device comprises a main body cabinet, a projection lens section to which light modulated by a light modulating element entered, and a mirror section for reflecting the light emitted from the projection lens section to a projection plane. A level difference depending on an arrangement shift of the projection lens section and the mirror section is formed on a second side surface facing a first side surface having light projection port of the main body cabinet. Furthermore, the projection display device comprises a level difference correction section for directing the light from the mirror section in a desired direction by correcting the level difference, when the main body cabinet is planed on a plane to be placed, the second side surface facing the plane to be placed.

Abstract: A projection display device comprises a projection lens section to which light modulated by a light modulating element is entered, a mirror section for reflecting the light emitted from the projection lens section to reflect to the projection lens section side and directing the light to a projection plane, and an operation section for displacing a lens in the projection lens section. The operation section is disposed in a region in which the operation section does not hinder an optical path of the light that has been passed through a projection port provided in a main body cabinet.

Abstract: A projection type video display capable of reducing components in number, and attempting to improve a cooling efficiency and a silencing of the video display is provided. Three cooling fans are provided on a plate member arranged within a chassis of the video display of a liquid crystal projector. The plate member is arranged in such a manner as to be spaced apart from a bottom plate of a chassis of the video display in order to form a single external-air introducing duct. Double-bottomed structure is formed by the plate member, and the plate member is used as a bottom for arranging components. Each cooling fan sucks external air from the single external-air introducing duct, and blows the external air from a blowing duct to an object to be cooled (a light source, a liquid crystal display, and others).

Abstract: A light source device (18) includes a light source (1) constructed by a light emitter (1a) surrounded by a reflector (2); and a supporting member (20) for holding the reflector (2), and passages of cooling air are formed above and below the reflector (2). First and second openings (21b) and (21a) as passages of cooling air are opened in upper and lower portions, respectively, of the reflector (2). Near the opening (21a) on the lower side, a wind direction switching member (23) is disposed on the supporting member (20). The wind direction switching member (23) makes cooling air from the opening (21a) flow upward to a side of the light emitter (1a) in a state where the supporting member (20) is placed on a desk, and makes the cooling air flow directly to an upper portion of the light emitter (1a) via the opening (21a) in a state where the supporting member (20) is hung from a ceiling.

Abstract: A projector device adapted to project an image-forming beam using a lamp as a light source. The lamp is installed within a rectangular parallelepipedal housing, and an exhaust fan is disposed to the rear of the lamp. The top wall of the housing surrounding the lamp is given an opening pattern asymmetric about the optical axis of the lamp by forming an air inlet opening in a position deviated from the optical axis toward a direction orthogonal to the axis for producing a swirling air current within the housing by operating the exhaust fan. The lamp can be effectively cooled with reduced quantities of air.

Abstract: A projection type video display capable of reducing components in number, and attempting to improve a cooling efficiency and a silencing of the video display is provided. Three cooling fans are provided on a plate member arranged within a chassis of the video display of a liquid crystal projector. The plate member is arranged in such a manner as to be spaced apart from a bottom plate of a chassis of the video display in order to form a single external-air introducing duct. Double-bottomed structure is formed by the plate member, and the plate member is used as a bottom for arranging components. Each cooling fan sucks external air from the single external-air introducing duct, and blows the external air from a blowing duct to an object to be cooled (a light source, a liquid crystal display, and others).

Abstract: A projector device adapted to project an image-forming beam using a lamp as a light source. The lamp is installed within a rectangular parallelepipedal housing, and an exhaust fan is disposed to the rear of the lamp. The top wall of the housing surrounding the lamp is given an opening pattern asymmetric about the optical axis of the lamp by forming an air inlet opening in a position deviated from the optical axis toward a direction orthogonal to the axis for producing a swirling air current within the housing by operating the exhaust fan. The lamp can be effectively cooled with reduced quantities of air.

Abstract: A projector device adapted to project an image-forming beam using a lamp as a light source. The lamp is installed within a rectangular parallelepipedal housing, and an exhaust fan is disposed to the rear of the lamp. The top wall of the housing surrounding the lamp is given an opening pattern asymmetric about the optical axis of the lamp by forming an air inlet opening in a position deviated from the optical axis is toward a direction orthogonal to the axis for producing a swirling air current within the housing by operating the exhaust fan. The lamp can be effectively cooled with reduced quantities of air.

Abstract: A projector device adapted to project an image-forming beam using a lamp as a light source. The lamp is installed within a rectangular parallelepipedal housing, and an exhaust fan is disposed to the rear of the lamp. The top wall of the housing surrounding the lamp is given an opening pattern asymmetric about the optical axis of the lamp by forming an air inlet opening in a position deviated from the optical axis toward a direction orthogonal to the axis for producing a swirling air current within the housing by operating the exhaust fan. The lamp can be effectively cooled with reduced quantities of air.