A display arrangement includes a base, a decorative shell having a front cover and a back cover, an elongated central post that is rotatably coupled to the decorative shell and fixedly coupled to the base, a light source disposed on the elongated central post and within the shell, such that the light is visible though at least one opening in the shell, a stem coupled to the shell and coupled to the elongated central post, the stem having a magnet on one end, and a coil configured to receive energy from a power source to cause an arcing motion of the magnet, the stem, and thereby the decorative shell. The display arrangement can include a second shell disposed horizontally above the decorative shell and coupled to the decorative shell, and can also include a third shell disposed horizontally below the decorative shell, and that is coupled to the decorative shell.

A display arrangement includes a base, a decorative shell having a front cover and a back cover, an elongated central post that is rotatably coupled to the decorative shell and fixedly coupled to the base, a light source disposed on the elongated central post and within the shell, such that the light is visible though at least one opening in the shell, a stem coupled to the shell and coupled to the elongated central post, the stem having a magnet on one end, and a coil configured to receive energy from a power source to cause an arcing motion of the magnet, the stem, and thereby the decorative shell. The display arrangement can include a second shell disposed horizontally above the decorative shell and coupled to the decorative shell, and can also include a third shell disposed horizontally below the decorative shell, and that is coupled to the decorative shell.

A crowd management system (CMS), is disclosed which includes a command and control (C2) subsystem, a sensor network in communication with the C2 subsystem and adapted to provide signals corresponding to geographical number of individuals in a venue, and one or more crowd management devices (CMDs) further in communication with the C2 subsystem, each of the CMDs including a base adapted to release air at a high pressure, the base further including a positional device adapted to position the base according to a selective position, and an inflatable body terminating into a predefined shape adapted to convey a predefined message to individuals near the CMDs.

A crowd management system (CMS), is disclosed which includes a command and control (C2) subsystem, a sensor network in communication with the C2 subsystem and adapted to provide signals corresponding to geographical number of individuals in a venue, and one or more crowd management devices (CMDs) further in communication with the C2 subsystem, each of the CMDs including a base adapted to release air at a high pressure, the base further including a positional device adapted to position the base according to a selective position, and an inflatable body terminating into a predefined shape adapted to convey a predefined message to individuals near the CMDs.

A sales or test display, comprising, in the assembled state, a lower level (14) for receiving products, a lighting system (16), and an upper level on which the lighting system is fastened, the lighting system comprising: a base (24), a printed circuit board (22) including a light-emitting diode suitable for emitting a light (L1), and a guide (26) made from a translucent material extending along a line (L), and located opposite the light-emitting diode to conduct said light, the guide (26) comprising: an upper surface for downwardly reflecting at least part of the light (L1) and forming a reflected light, and a lower surface for allowing at least part of the reflected light to pass and forming a diffused light (L3), the guide being configured to form an illuminated zone (20) on the lower level.

A sales or test display, comprising, in the assembled state, a lower level (14) for receiving products, a lighting system (16), and an upper level on which the lighting system is fastened, the lighting system comprising: a base (24), a printed circuit board (22) including a light-emitting diode suitable for emitting a light (L1), and a guide (26) made from a translucent material extending along a line (L), and located opposite the light-emitting diode to conduct said light, the guide (26) comprising: an upper surface for downwardly reflecting at least part of the light (L1) and forming a reflected light, and a lower surface for allowing at least part of the reflected light to pass and forming a diffused light (L3), the guide being configured to form an illuminated zone (20) on the lower level.

A water dance device with display screen effect primarily comprises a box body therein are disposed a rotating water spray unit, a swinging water spray unit, a multicolored water spray unit, an intermittent water spray unit, a fogging device, and a laser projector. The rotating water spray unit and the swinging water spray unit are disposed to provide rotating and swinging water jets; the multicolored water spray unit is disposed to provide water jets of various colors; the intermittent water spray unit is disposed to provide single projectile water jets; and the fogging device is disposed to provide a foggy veil for the laser projector to project texts or images thereon. Providing various forms of water dance performance composed in its box body and advertising effect, the present invention may be placed in businesses, stores and shops for achieving the purpose of attracting potential customers.

A water dance device with display screen effect primarily comprises a box body therein are disposed a rotating water spray unit, a swinging water spray unit, a multicolored water spray unit, an intermittent water spray unit, a fogging device, and a laser projector. The rotating water spray unit and the swinging water spray unit are disposed to provide rotating and swinging water jets; the multicolored water spray unit is disposed to provide water jets of various colors; the intermittent water spray unit is disposed to provide single projectile water jets; and the fogging device is disposed to provide a foggy veil for the laser projector to project texts or images thereon. Providing various forms of water dance performance composed in its box body and advertising effect, the present invention may be placed in businesses, stores and shops for achieving the purpose of attracting potential customers.

A three-dimensional (3-D) projection system includes a projector configured to output a projection of light to simulate a 3-D object, an opaque surface configured to receive the projection of light to simulate a portion of the 3-D object on the opaque surface, and a translucent scrim disposed at a boundary of the opaque surface and configured to receive the projection of light to simulate an extension of the 3-D object away from and beyond the boundary of the opaque surface.

A transparent display device includes an image display bar in which a plurality of light-emitting elements are arranged, and a bar driving unit which moves the image display bar along a predetermined path and provides transparent display using afterimages resulting from the movement of the light-emitting elements, wherein the transparency of the transparent display using afterimages is determined by the equation, transparency (%)=((A−B)/A)*100, where A denotes the entire display area of the transparent display, and B denotes the area of the image display bar.