Abstract: A phosphor wheel unit includes a phosphor wheel that converts incident light into fluorescent light and emits the fluorescent light, a first heat exchanger having a plurality of fin members that is arranged and an airflow inlet surface through which an airflow generated by rotation of the phosphor wheel partially or entirely flows in, and a regulating member that regulates a direction of the airflow. The direction of the airflow regulated by the regulating member and a direction perpendicular to a rotation shaft of the phosphor wheel form an angle of between 0 degrees and 45 degrees on a surface perpendicular to an extending direction of a base material of the phosphor wheel. The airflow inlet surface is disposed intercepting the direction of the airflow regulated by the regulating member. The first heat exchanger cools a gas forming the airflow and the cooled gas returns to the phosphor wheel.

Abstract: A projection image display device includes: an optical element that separates incident light into a first color light beam and a second color light beam, synthesizes the first color light beam and the second color light beam to generate synthetic light, and emits the synthetic light; a first display panel that reflects and modulates the first color light beam; a second display panel that reflects and modulates the second color light beam; a first heat dissipator that dissipates heat of the first display panel; a second heat dissipator that dissipates heat of the second display panel; a light shielding portion that blocks a part of the second color light beam reflected by the second display panel from traveling toward the first display panel; a light shield heat dissipator that dissipates heat of the light shielding portion; and a container. The second heat dissipator is disposed outside the container.

Abstract: A projection image display device includes: an optical element that separates incident light into a first color light beam and a second color light beam, synthesizes the first color light beam and the second color light beam to generate synthetic light, and emits the synthetic light; a first display panel that reflects and modulates the first color light beam; a second display panel that reflects and modulates the second color light beam; a first heat dissipator that dissipates heat of the first display panel; a second heat dissipator that dissipates heat of the second display panel; a light shielding portion that blocks a part of the second color light beam reflected by the second display panel from traveling toward the first display panel; a light shield heat dissipator that dissipates heat of the light shielding portion; and a container. The second heat dissipator is disposed outside the container.

Abstract: The light source device includes a first light source, a second light source, and a substrate including a base member. A first wiring and a second wiring are disposed on the substrate. The first wiring has a connection part including connection parts such that the first light source is electrically connected in series and a connection part including connection parts such that the second light source is electrically connected in series. The base member is provided with at least one through-hole at each portion where the connection parts of the connection parts are disposed, and includes a protrusion in a vicinity of the through-hole such that the protrusion protrudes along a surface of the base member in a direction intersecting the first wiring. The second wiring includes at least one detour path in a vicinity of the protrusion, detouring around the through-hole with an insulation distance from the through-hole.

Abstract: The light source device includes a first light source, a second light source, and a substrate including a base member. A first wiring and a second wiring are disposed on the substrate. The first wiring has a connection part including connection parts such that the first light source is electrically connected in series and a connection part including connection parts such that the second light source is electrically connected in series. The base member is provided with at least one through-hole at each portion where the connection parts of the connection parts are disposed, and includes a protrusion in a vicinity of the through-hole such that the protrusion protrudes along a surface of the base member in a direction intersecting the first wiring. The second wiring includes at least one detour path in a vicinity of the protrusion, detouring around the through-hole with an insulation distance from the through-hole.

Abstract: A projection display apparatus includes a housing case housing a plurality of light sources, a light valve, and a projection unit. The housing case has a projection-plane-side sidewall and a front-side sidewall, the projection-plane-side sidewall facing the placement surface, the front-side sidewall being provided on an opposite side to the projection-plane-side sidewall. The front-side sidewall has a protruding portion protruding outward of the housing case.

Abstract: A projection display apparatus includes a housing case housing a light source unit, a light valve, a projection unit, and a cooling unit. A size of the housing case in an orthogonal direction to a projection plane is smaller than a size of the housing case in a horizontal direction parallel to the projection plane. The projection unit is arranged at substantially center of the housing case in the horizontal direction parallel to the projection plane.

Abstract: A digital camera (1) performs shooting such that each student within a classroom is included in a subject, uses an optical flow to detect the action of standing up from a chair or the action of moving a mouth by a student who needs to be a speaker, thus specifies the position of the speaker (any of the students) on a shooting image and extracts image data on the face portion of the speaker. A PC (2) uses a projector (3) to display a material on a screen (4), and superimposes and displays, when the extracted image data is transferred from the digital camera (1), a picture of the face of the speaker on the screen (4) based on the extracted image data.

Abstract: A projection display apparatus (100) has an image light generating unit (200), a projection optical unit (300) and a screen (220). The projection optical unit (300) has a reflection mirror (320). The screen (220) is switchably configured to as to switch to whether to diffuse image light reflected by the reflection mirror (320) or to transmit the image light reflected by the reflection mirror (320).

Abstract: A projection display apparatus includes a housing case housing a light source unit, a light valve, a projection unit, and a cooling unit. A size of the housing case in an orthogonal direction to a projection plane is smaller than a size of the housing case in a horizontal direction parallel to the projection plane. The projection unit is arranged at substantially center of the housing case in the horizontal direction parallel to the projection plane.

Abstract: A projection display apparatus includes a housing case housing a plurality of light sources, a light valve, and a projection unit. The housing case has a projection-plane-side sidewall and a front-side sidewall, the projection-plane-side sidewall facing the placement surface, the front-side sidewall being provided on an opposite side to the projection-plane-side sidewall. The front-side sidewall has a protruding portion protruding outward of the housing case.

Abstract: A projection display apparatus includes a housing case housing a light source unit, a light valve, a projection unit, and a cooling unit. A size of the housing case in an orthogonal direction to a projection plane is smaller than a size of the housing case in a horizontal direction parallel to the projection plane. The projection unit is arranged at substantially center of the housing case in the horizontal direction parallel to the projection plane.

Abstract: A projection display apparatus includes a housing case housing a solid light source, a light valve configured to modulate light emitted from the solid light source, and a projection unit configured to project light emitted from the light valve on a projection plane. The projection display apparatus includes a cable terminal provided on at least one of sidewalls forming both ends of the housing case in a horizontal direction parallel to the projection plane.

Abstract: An illuminating device includes a plurality of light source portions having a light source and condenser optics for condensing light from the light source, a plurality of optical fibers each connected to a corresponding one of the light source portions and into which the light from the corresponding condenser optics is incident, and a bundling portion for bundling the plurality of optical fibers. The plurality of light source portions are arranged on a plane approximately parallel to a bundling-central axis of the bundling portion, and the farther the light source portion is arranged from the bundling portion, the more the optical axis of the condenser optics is tilted toward the bundling portion from a direction vertical to the plane.

Abstract: An illuminating device includes a plurality of light source portions for emitting light, a plurality of optical fibers for allowing incidence of the light emitted from the respective light source portions, and a bundling portion for bundling exit ends of the optical fibers. The light source portions or the optical fibers are constructed in such a manner that a flexure of each of the optical fibers is suppressed to mount the each optical fiber in a state close to a straight state. For instance, the light source portions are arranged in an arc shape, with a distance of each of the light source portions with respect to the bundling portion being set as the radius of the arc shape. In this arrangement the respective optical fibers are set to have lengths substantially equal to each other.

Abstract: The projection image display apparatus includes an image light generator and a projection optics. The projection optics includes a reflection mirror. The projection image display apparatus includes an image capture device configured to capture an image of a user facing the projection surface, a first acquisition unit configured to acquire captured image data from the image capture device, a second acquisition unit configured to acquire sample data independently of the captured image data, and an image controller configured to control an image to be displayed on the projection surface on the basis of the captured image data and the sample data.