The disclosure provides a projection system and a projection operation method. The projection operation method causes the projection device disposed inside the biologically-modeled housing to project the facial image onto the face projection area of the biologically-modeled housing. The face projection area is light-transmissive and curved. The controller identifies the voice signal received by the sound-receiving device. When the controller obtains the identification result, if the projection data stored in the storage device includes the target projection data corresponding to the identification result, the controller controls the projection device to project the facial image according to the target projection data, or, if the projection data stored in the storage device does not include the target projection data, the controller controls the communication device to receive the target projection data from the external device and stores it in the storage device.

The disclosure provides a projection system and a projection operation method. The projection operation method causes the projection device disposed inside the biologically-modeled housing to project the facial image onto the face projection area of the biologically-modeled housing. The face projection area is light-transmissive and curved. The controller identifies the voice signal received by the sound-receiving device. When the controller obtains the identification result, if the projection data stored in the storage device includes the target projection data corresponding to the identification result, the controller controls the projection device to project the facial image according to the target projection data, or, if the projection data stored in the storage device does not include the target projection data, the controller controls the communication device to receive the target projection data from the external device and stores it in the storage device.

The present disclosure provides a display system comprising a retro-reflective screen having retro-reflective screen elements that reflect incident light. Each of the retro-reflective screen elements can include three intersecting planes. At least one of the three intersecting planes intersects an adjacent plane at an angle that is 90° with an offset greater than 0°. The display system can further include at least one projector that projects the light onto the retro-reflective, which light characterizes an image or video. The retro-reflective screen having the retro-reflective screen elements can reflect the light at a cross-talk that is decreased by at least 10% and/or an intensity that is increased by at least 5%, as compared to a retro-reflective screen with retro-reflective screen elements having planes that each intersects an adjacent plane at an angle of 90° without the offset.

The present disclosure provides a display system comprising a retro-reflective screen having retro-reflective screen elements that reflect incident light. Each of the retro-reflective screen elements can include three intersecting planes. At least one of the three intersecting planes intersects an adjacent plane at an angle that is 90° with an offset greater than 0°. The display system can further include at least one projector that projects the light onto the retro-reflective, which light characterizes an image or video. The retro-reflective screen having the retro-reflective screen elements can reflect the light at a cross-talk that is decreased by at least 10% and/or an intensity that is increased by at least 5%, as compared to a retro-reflective screen with retro-reflective screen elements having planes that each intersects an adjacent plane at an angle of 90° without the offset.

A projection system includes a plurality of projection devices configured to perform position measurement and projection on a target object. Each of the projection devices includes: an invisible light projection unit configured to project invisible measurement light onto the target object; a light receiving unit configured to receive reflection light of the measurement light, the reflection light being reflected from the target object; a computing unit configured to calculate position information of the target object on the basis of the reflection light of the measurement light; and a visible light projection unit configured to project a visible light video content on the basis of the position information of the target object. A first projection device and a second projection device of the plurality of projection devices project the measurement light at different projection timings.

An underwater image projection system submerged in a body of water and projecting an image within the body of water. The system includes a submerged projection element, a light source steering device, a user interface, and a controller. The submerged projecting element includes a projecting light source that projects an image within the body of water. The light source steering device directs light from the projecting light source. The user interface receives data input from a user including at least one of an input of the image and instructions for displaying the image. The controller retrieves the data input from the user interface, accesses image data corresponding to the image, and controls the projecting light source and the light source steering device to project the image onto a target surface within the body of water based on the data input from the user interface.

An underwater image projection system submerged in a body of water and projecting an image within the body of water. The system includes a submerged projection element, a light source steering device, a user interface, and a controller. The submerged projecting element includes a projecting light source that projects an image within the body of water. The light source steering device directs light from the projecting light source. The user interface receives data input from a user including at least one of an input of the image and instructions for displaying the image. The controller retrieves the data input from the user interface, accesses image data corresponding to the image, and controls the projecting light source and the light source steering device to project the image onto a target surface within the body of water based on the data input from the user interface.

The present invention provides a rear projection simulator system with a free-form fold mirror. The system includes a high definition projector and a curved screen. The free-form fold mirror is interposed between the projector and the screen. The free-form fold mirror includes one or more non-planar (e.g., curved) portions to eliminate or reduce loss of resolution of the projected image near the edges or boundaries of the image.

A projection apparatus including a housing and a first projection module is provided. The housing includes a curved projection area and an opening, wherein the curved projection area includes an inner surface and an outer surface opposite to each other. The first projection module is detachably disposed in the housing through the opening and corresponds to the curved projection area, wherein the first projection module projects an image onto the inner surface of the curved projection area, such that the outer surface of the curved projection area displays the projected image. The projection apparatus provided by the invention has the curved projection area to dynamically display a stereo image.

A lensed display system includes a projector configured to project an image. The lensed display system includes a lens formed of a glass or crystalline material. The lens includes a first surface, wherein at least a portion of the first surface includes a coating that is configured to display the projected image. The lens includes a second surface, wherein the second surface comprises a transparent curved surface that is configured to face toward a user and to enable the user to view the image projected onto the coating through the transparent curved surface.