The present disclosure provides a projection table. The projection table includes: a table body, including a table plate and defining a receiving space under the table plate; a support and adjustment device, disposed in the receiving space, and configured to support a projector and adjust a position of the projector in the receiving space in at least one direction of a top-and-bottom direction, a back-and-forth direction, and a left-and-right direction; a first mirror, disposed in the receiving space, and configured to receive a light ray emitted from the projector and reflect the light ray; and a second mirror, disposed in the receiving space, and configured to receive the light ray reflected from the first mirror and reflect the light ray out of the receiving space.

A system for co-positioning physical and virtual objects during stage performances when the movements of the object (3) on the stage (1) are combined with the projected image. The technical result to be achieved is in the enhancement of functionalities of the system due to the increase in the accuracy of movement of the object (3), the increase in speed and degrees of freedom of the object (3) movement providing simultaneous synchronized co-positioning of physical and virtual objects (3).

Various embodiments described herein relates to a lens cap, adapted to be mechanically engaged over a lens assembly of an optical projector. The lens cap, as described herein, is adapted for vignetting a light pattern projected by the optical projector. The lens cap includes a front surface and a back surface, where on at least a portion of the front surface, an elliptically shaped aperture is defined. In this aspect, the elliptically shaped aperture is chamfered towards its peripheral ends, as the elliptically shaped aperture extends out from the back surface of the lens cap towards the front surface of lens cap. Also, the elliptically shaped aperture is defined on the lens cap such that, a center axis of the aperture is offset to a central axis of the lens cap, so as to match an offset at which the light pattern is projected by the optical projector.

Various embodiments described herein relates to a lens cap, adapted to be mechanically engaged over a lens assembly of an optical projector. The lens cap, as described herein, is adapted for vignetting a light pattern projected by the optical projector. The lens cap includes a front surface and a back surface, where on at least a portion of the front surface, an elliptically shaped aperture is defined. In this aspect, the elliptically shaped aperture is chamfered towards its peripheral ends, as the elliptically shaped aperture extends out from the back surface of the lens cap towards the front surface of lens cap. Also, the elliptically shaped aperture is defined on the lens cap such that, a center axis of the aperture is offset to a central axis of the lens cap, so as to match an offset at which the light pattern is projected by the optical projector.

A method and apparatus for mounting a projector holder to or placing a projector holder on an object for displaying an image onto a surface is disclosed. The projector holder includes a body within which a projector is at least partially disposed. The body includes one or more pliable appendages that are adapted to be manipulated and deformed from a first configuration to a second configuration. In some embodiments, the body is formed in the shape of an animal.

A method and apparatus for mounting a projector holder to or placing a projector holder on an object for displaying an image onto a surface is disclosed. The projector holder includes a body within which a projector is at least partially disposed. The body includes one or more pliable appendages that are adapted to be manipulated and deformed from a first configuration to a second configuration. In some embodiments, the body is formed in the shape of an animal.

A projector includes a lens, a beam processing module, a plurality of digital micromirror devices, a reflecting module and an illumination module. The beam processing module is disposed with respect to the lens. The digital micromirror devices are disposed around the beam processing module, wherein a beam projecting path is defined between the lens and the digital micromirror device. The reflecting module is disposed with respect to the digital micromirror devices and located beyond the beam projecting path. The illumination module is disposed with respect to the reflecting module. An initial beam projected by the illumination module is reflected to the digital micromirror devices by the reflecting module, such that the digital micromirror devices generate a plurality of image beams. The beam processing module combines the image beams to form a projecting beam and projects the projecting beam onto the lens along the beam projecting path.

A projector includes a lens, a beam processing module, a plurality of digital micromirror devices, a reflecting module and an illumination module. The beam processing module is disposed with respect to the lens. The digital micromirror devices are disposed around the beam processing module, wherein a beam projecting path is defined between the lens and the digital micromirror device. The reflecting module is disposed with respect to the digital micromirror devices and located beyond the beam projecting path. The illumination module is disposed with respect to the reflecting module. An initial beam projected by the illumination module is reflected to the digital micromirror devices by the reflecting module, such that the digital micromirror devices generate a plurality of image beams. The beam processing module combines the image beams to form a projecting beam and projects the projecting beam onto the lens along the beam projecting path.

A ceremonial occasion video display device and a ceremonial occasion building capable of making more-ingeniously-planned innovative impressive production in a ceremony for a ceremonial occasion. A character projected onto a display region of a display member representing the shape of an opening book freely moves around on right and left pages for a while, and thereafter, starts such action that the character turns over a second page with the character holding a right end of the second page. On the display region after the second page has been turned over, other pictures as next pages are projected as if the character turns over the page of the book. Specifically, part of a third page is projected onto the display region at a position on the back side of the second page, and part of a fourth page is projected onto the region after the second page has been turned over.

A ceremonial occasion video display device and a ceremonial occasion building capable of making more-ingeniously-planned innovative impressive production in a ceremony for a ceremonial occasion. A character projected onto a display region of a display member representing the shape of an opening book freely moves around on right and left pages for a while, and thereafter, starts such action that the character turns over a second page with the character holding a right end of the second page. On the display region after the second page has been turned over, other pictures as next pages are projected as if the character turns over the page of the book. Specifically, part of a third page is projected onto the display region at a position on the back side of the second page, and part of a fourth page is projected onto the region after the second page has been turned over.