A lighting apparatus with an image-projecting function that is convenient for a user can be provided. The lighting apparatus includes: an illuminating unit that emits illumination light; and a projection-type image display unit that projects an image. The projection-type image display unit is configured so that a setting menu screen settable about an image displayed by the projection-type image display unit can be displayed.

A method for enabling easier interpretation and analysis of an observed real world scene by presenting a visible representation of infrared (IR) radiation information, based on IR radiation emitted from said real world scene, and additional information onto said observed real world scene, using thermography arrangement comprising an IR imaging system, a visible light imaging system and a visible light projecting system.

A method for enabling easier interpretation and analysis of an observed real world scene by presenting a visible representation of infrared (IR) radiation information, based on IR radiation emitted from said real world scene, and additional information onto said observed real world scene, using thermography arrangement comprising an IR imaging system, a visible light imaging system and a visible light projecting system.

An electronic device comprises a projector that is configured to project an image and a control unit. The control unit is configured to control an orientation of the image to be projected to a first orientation and onto a first surface when the electronic device is in a first attitude, and to control the orientation of the image to be projected to a second orientation different from the first orientation and onto a second surface different from the first surface when the electronic device is in a second attitude different from the first attitude.

An electronic device comprises a projector that is configured to project an image and a control unit. The control unit is configured to control an orientation of the image to be projected to a first orientation and onto a first surface when the electronic device is in a first attitude, and to control the orientation of the image to be projected to a second orientation different from the first orientation and onto a second surface different from the first surface when the electronic device is in a second attitude different from the first attitude.

An interactive rear projection system including a projection screen, a projection optical engine, an input device and a controller is provided. The projection optical engine emits a projection beam which is projected on the projection screen. The input device includes a sensor and a first light source both disposed on a first side of the projection screen. The controller is electrically connected to the projection optical engine, the sensor, and the first light source and controls the first light source to project a first beam toward the projection screen. When an object approaches a second side of the projection screen, the sensor senses a light spot generated by the first beam diffusely reflected by the object and recognizes a position of the object or a position where the object touches the projection screen according to the light spot.

A projection display unit includes, in a housing (120), a visible light illuminator, a light valve that modulates a first polarized component included in light outputted from the visible light illuminator, on a basis of an image signal, a projection lens that projects light modulated by the light valve onto a projection plane, a detection light-source section (30) that outputs invisible light for detection, and an imaging device that receives a second polarized component included in light that is based on the invisible light. The detection light-source section (30) is movable relative to the housing (120), and outputs the invisible light in a direction parallel to or a direction forming a fixed angle with respect to the projection plane (110).

An example system, including a projector unit, an all-in-one computer attachable to the projector unit, a camera communicatively coupled to the all-in-one computer, and a touch sensitive mat communicatively coupled to the all-in-one computer. The projector unit projects an image on to the touch sensitive mat, and the touch sensitive mat comprises an optical pattern used to track a handheld device interacting with the image.

An example system, including a projector unit, an all-in-one computer attachable to the projector unit, a camera communicatively coupled to the all-in-one computer, and a touch sensitive mat communicatively coupled to the all-in-one computer. The projector unit projects an image on to the touch sensitive mat, and the touch sensitive mat comprises an optical pattern used to track a handheld device interacting with the image.

A processing device generates a marker image to use as a reference for correcting a shape of a projection image projected on a projection surface from a projector, takes a taken image of the projection surface using the imaging device from an imaging position different from an observation position from which the projection surface is observed, generates a parameter for reducing a distortion of the projection image based on the marker image included in the taken image, displays an area image representing a range wherein projection can be performed on the projection surface on the display device, disposes a video content at an indicating position in the area image with an input to the input device, generates an original image including the video content, and corrects the original image thereby generating an input image for input to a projector configured to project the projection image.