The purpose of the present invention is to provide a magnetic fluid display in which a magnetic fluid moves in response to a magnetic field and which may display a unique visual image according to the meeting and parting of the magnetic fluid. A magnetic fluid display (10) according to the present invention comprises: a display unit (110) including a transparent liquid into which a magnetic fluid (111) is injected; and a magnetic field generating unit (200) for applying a magnetic field (M) to the magnetic fluid (111) at a rear surface of the display unit (110). When the magnetic field is applied, the magnetic fluid moves in the transparent liquid in a directional manner, so that an image may be displayed on the display unit.

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.

Security documents often incorporate security devices to prevent or hinder counterfeiters. Disclosed herein are security devices that include a fluid or fluids within the devices. Such devices, and security documents that include them, afford new techniques to check whether a security document is a legitimate or counterfeit copy.

Security documents often incorporate security devices to prevent or hinder counterfeiters. Disclosed herein are security devices that include a fluid or fluids within the devices. Such devices, and security documents that include them, afford new techniques to check whether a security document is a legitimate or counterfeit copy.

A thermal compensation system is provided for a liquid-filled inflexible chamber of a device. The chamber has at least one exposed, at least partially transparent surface allowing an outside observer to observe at least one liquid and comprises a mechanism accommodating thermal expansion and/or contraction of the liquids. The mechanism is disposed so as to be substantially invisible to the observer.

A thermal compensation system is provided for a liquid-filled inflexible chamber of a device. The chamber has at least one exposed, at least partially transparent surface allowing an outside observer to observe at least one liquid and comprises a mechanism accommodating thermal expansion and/or contraction of the liquids. The mechanism is disposed so as to be substantially invisible to the observer.

A table top hydro-mechanical candelabra display device is provided that combines in one small package the comforting light of a candle, the tranquil sounds of a waterfall, and the mood elevating splash of vibrant colors, to name a few. The display device includes a transparent reservoir for containing liquid; a plurality of lights disposed below a bottom portion of the reservoir; a pump inside the reservoir; a first pressure chamber fed by the pump; a rotating candelabra; and a waterfall creating cavitation bubbles to camouflage the unsightly hardware. The device may also include a second pressure chamber. Liquid is pumped from the reservoir into the first pressure chamber flows through openings back into the reservoir and into the second pressure chamber, from which it also flows into the reservoir. The force of the flowing liquid causes the candelabra to rotate and creates the bubbles.

The NOVELTY DISPLAY PLATFORM discloses a display platform for illuminating a display chamber. The platform includes a base unit containing a light source. The base unit is configured with a stage to support a display chamber. The base unit further includes an opening configured to receive a light conduit. The light conduit is configured to redirect light from the light source contained in the base unit to illuminate the display chamber. The display chamber may contain a transparent sheet bearing an image and/or be filled with a suspension of reflective particles. The light source may be color changing and/or support various display modes, and may be controlled by a remote.

The NOVELTY DISPLAY PLATFORM discloses a display platform for illuminating a display chamber. The platform includes a base unit containing a light source. The base unit is configured with a stage to support a display chamber. The base unit further includes an opening configured to receive a light conduit. The light conduit is configured to redirect light from the light source contained in the base unit to illuminate the display chamber. The display chamber may contain a transparent sheet bearing an image and/or be filled with a suspension of reflective particles. The light source may be color changing and/or support various display modes, and may be controlled by a remote.

A laser engraving lighting structure includes: a main body, being a light-transmissible three-dimensional shell, an outer surface of the main body having a decorative pattern formed by means of laser engraving; and a base, connected to a bottom of the main body, the base configured with an electronic control unit including at least one light emitting element in electric connection with the electronic control unit, and the light emitting element irradiating toward the main body. Whereby, when the light emitting element is powered on, the light will pass through the main body to project the decorative pattern on the outer surface of the main body onto the surrounding objects or wall surfaces.