Abstract: A projector suspension device includes a base fixed to a wall, a support member extending from the base and supporting the projector, and an adjustment mechanism that adjusts rotation and a position of the projector. The adjustment mechanism includes a first slide substrate that slides with respect to the support member in a first direction perpendicular to the wall and adjusts the position of the projector in the first direction, a substrate fixed to the first slide substrate, a first rotating substrate that rotates with respect to the substrate, a second rotating substrate that rotates with respect to the first rotating substrate about an axis parallel to the wall and perpendicular to the substrate, and a turning member that adjusts a rotation of the second rotating substrate and has a rotating pivot perpendicular to the base. The second rotating substrate rotates about the axis by rotation of the turning member.

Abstract: A projector suspension device includes a base fixed to a wall, a support member extending from the base and supporting the projector, and an adjustment mechanism that adjusts rotation and a position of the projector. The adjustment mechanism includes a first slide substrate that slides with respect to the support member in a first direction perpendicular to the wall and adjusts the position of the projector in the first direction, a substrate fixed to the first slide substrate, a first rotating substrate that rotates with respect to the substrate, a second rotating substrate that rotates with respect to the first rotating substrate about an axis parallel to the wall and perpendicular to the substrate, and a turning member that adjusts a rotation of the second rotating substrate and has a rotating pivot perpendicular to the base. The second rotating substrate rotates about the axis by rotation of the turning member.

Abstract: A projector suspension device comprising a base fixed to a wall, a support member extending from the base and supporting the projector, and an adjustment mechanism that adjusts a tilt and position of the projector, the adjustment mechanism including a first member that slides with respect to the support member in a first direction perpendicular to the wall and adjusts the position of the projector in the first direction, a second member fixed to the first member, a third member connected to the second member, a fourth member connected to the third member and that rotates with respect to the third member about an axis parallel to the wall and perpendicular to the first direction, and a turning member that adjusts a rotation of the fourth member about the axis by rotation of the turning member, wherein a rotating pivot of the turning member is perpendicular to the base.

Abstract: A projector suspension device for a projector comprises a base to be fixed to a surface on which the projector projects an image, a support member extending from the base and configured to support the projector, and an adjustment mechanism configured to adjust a tilt of the projector.

Abstract: A projector suspension device comprising a base fixed to a wall, a support member extending from the base and supporting the projector, and an adjustment mechanism that adjusts a tilt and position of the projector, the adjustment mechanism including a first member that slides with respect to the support member in a first direction perpendicular to the wall and adjusts the position of the projector in the first direction, a second member fixed to the first member, a third member connected to the second member, a fourth member connected to the third member and that rotates with respect to the third member about an axis parallel to the wall and perpendicular to the first direction, and a turning member that adjusts a rotation of the fourth member about the axis by rotation of the turning member, wherein a rotating pivot of the turning member is perpendicular to the base.

Abstract: A projector suspension device for a projector comprises a base to be fixed to a surface on which the projector projects an image, a support member extending from the base and configured to support the projector, and an adjustment mechanism configured to adjust a tilt of the projector.

Abstract: A reflective polarizing plate apparatus includes a reflective polarizing plate that transmits first linearly polarized light and reflects second linearly polarized light polarized in a direction substantially perpendicular to the direction in which the first linearly polarized light is polarized, a holding member that accommodates and holds the reflective polarizing plate, and a first biasing member that biases a glass surface of the reflective polarizing plate accommodated in the holding member.

Abstract: A projector suspension device for a projector comprises a base to be fixed to a surface on which the projector projects an image, a support member extending from the base and configured to support the projector, and an adjustment mechanism configured to adjust a tilt of the projector.

Abstract: A projector includes: a light source, a light amount control device, an electro-optic unit, and a projection device, the light amount control device includes a light-shielding member configured to shield part of the luminous flux emitted from the light source, a holding member configured to hold the light-shielding member, the holding member is formed of a material having a coefficient of thermal conductivity lower than the coefficient of thermal conductivity of the light-shielding member, and a position changing unit configured to move or rotate in order to change the position of the light-shielding member, the light-shielding member is attached to the position changing unit via the holding member, and the light-shielding member comes into contact with the holding member via a projection provided on at least one of the light-shielding member and the holding member.

Abstract: A projector suspension device for a projector comprises a base to be fixed to a surface on which the projector projects an image, a support member extending from the base and configured to support the projector, and an adjustment mechanism configured to adjust a tilt of the projector.

Abstract: A projector suspension device including a projection optical device having a reflecting mirror, and a suspension position adjustment mechanism, the suspension position adjustment mechanism includes: a pressing member which presses a first member and a second member; a screw member which, being fixed in the first member, passes through the second member; and a turning member which, by turning and engaging with the screw member passing through the second member, against the pressing force of the pressing member, adjusts the angle formed by the first member and second member, with a turning pivot set perpendicular to the axial direction of the screw member as the center.

Abstract: A reflective polarizing plate apparatus includes a reflective polarizing plate that transmits first linearly polarized light and reflects second linearly polarized light polarized in a direction substantially perpendicular to the direction in which the first linearly polarized light is polarized, a holding member that accommodates and holds the reflective polarizing plate, and a first biasing member that biases a glass surface of the reflective polarizing plate accommodated in the holding member.

Abstract: A light control device which controls the transmission amount of light emitted from a predetermined emission area includes a rotation member having a rotation axis extending in a direction substantially orthogonal to the center axis of the light, and a light shielding member supported by the rotation member and shielding at least a part of the light by rotation of the rotation member. The light shielding member has a light shielding surface which shields received light. The light shielding surface is so processed as to reduce the amount of light reflected by the light shielding surface, and reaching the emission area.

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 suspension device including a projection optical device having a reflecting mirror, and a suspension position adjustment mechanism, the suspension position adjustment mechanism includes: a pressing member which presses a first member and a second member; a screw member which, being fixed in the first member, passes through the second member; and a turning member which, by turning and engaging with the screw member passing through the second member, against the pressing force of the pressing member, adjusts the angle formed by the first member and second member, with a turning pivot set perpendicular to the axial direction of the screw member as the center.

Abstract: A projector includes: a light source, a light amount control device, an electro-optic unit, and a projection device, the light amount control device includes a light-shielding member configured to shield part of the luminous flux emitted from the light source, a holding member configured to hold the light-shielding member, the holding member is formed of a material having a coefficient of thermal conductivity lower than the coefficient of thermal conductivity of the light-shielding member, and a position changing unit configured to move or rotate in order to change the position of the light-shielding member, the light-shielding member is attached to the position changing unit via the holding member, and the light-shielding member comes into contact with the holding member via a projection provided on at least one of the light-shielding member and the holding member.

Abstract: A light control device which controls the transmission amount of light emitted from a predetermined emission area includes a rotation member having a rotation axis extending in a direction substantially orthogonal to the center axis of the light, and a light shielding member supported by the rotation member and shielding at least a part of the light by rotation of the rotation member. The light shielding member has a light shielding surface which shields received light. The light shielding surface is so processed as to reduce the amount of light reflected by the light shielding surface, and reaching the emission area.