[Problem] To provide a presentation system that effectively uses the characteristic of a float body such as a bubble. [Solution] This presentation system 100 comprises: a tornado fan in which a plurality of blowers each perform blowing so that clockwise or counterclockwise air flow is generated in a presentation space surrounded by exhaust ports 114 of the plurality of blowers when viewed in a plan view; and a supply device 12 that supplies a float body such as a bubble into the presentation space. It is possible to cause an aggregate of bubbles to float in the vicinity of the center in the presentation space by means of a vortex air flow formed in the presentation space.

A method for appreciating water balls using a water balls appreciation device, including a water balls discharge device and a light irradiation device, the method including: discharging the water balls, using the water balls discharge device, from tips of a plurality of nozzles, disposed at predetermined intervals in the lateral direction, by applying vibration to flowing water, the discharged water balls falling downwardly and in substantially a vertical plane; irradiating the water balls, using a light irradiation device, with light, the light irradiation device comprising a high-speed projector having a refresh rate of 300 Hz or more; and projecting a continuous screen of the projector in the water balls in the vertical plane regarded as a virtual screen by properly using a frame displaying a screen or an image and a frame not displaying a screen, so that a blinking duty is 20% or less, whereby the water balls are visually appreciated in the projected area. Then, by changing the timing of light emission for passing light through the image, it is possible to appreciate the movement of the water balls that changes in various manners.

An unmanned aerial system (UAS) that displays an image, video or other effect is described. The UAS may include a camera that captures the image for display. The UAS may be used in connection with a water display, and multiple UASs may operate together.

A tethered unmanned aerial system (UAS) is described, wherein the flight of one or more UASs may be used in connection with a water and light display.

The invention relates to a flying device (701) arranged to fly in a space and to present an image in that space, a system comprising multiple flying devices (701) for presenting an image in a space and a method for presenting an image in a space using a flying device (701), wherein the flying device (701) is arranged to fly in the space under control of a control signal, the flying device (701) comprising one or more light units (731) arranged to emit multiple light beams (711, 712, 713) a communication unit arranged to receive the control signal and a processing unit arranged to control, based on the received control signal a position of the flying device and a light output of each of the multiple beams (711, 712, 713).

The invention relates to a flying device (701) arranged to fly in a space and to present an image in that space, a system comprising multiple flying devices (701) for presenting an image in a space and a method for presenting an image in a space using a flying device (701), wherein the flying device (701) is arranged to fly in the space under control of a control signal, the flying device (701) comprising one or more light units (731) arranged to emit multiple light beams (711, 712, 713) a communication unit arranged to receive the control signal and a processing unit arranged to control, based on the received control signal a position of the flying device and a light output of each of the multiple beams (711, 712, 713).

Some embodiments include an underwater projection system having a water feature that includes a first underwater light niche. A user interface is configured to upload an image from a user to a controller. A projector is disposed in the first underwater light niche and is configured to project the image onto an underwater surface of the water feature. The controller is in communication with the user interface and the projector and the controller operates the projector.

Some embodiments include an underwater projection system having a water feature that includes a first underwater light niche. A user interface is configured to upload an image from a user to a controller. A projector is disposed in the first underwater light niche and is configured to project the image onto an underwater surface of the water feature. The controller is in communication with the user interface and the projector and the controller operates the projector.

A light beam emission system includes: a blower that forms a flow path in which aerosol flows; and an emitter that emits a light beam. At least part of the light beam propagates along the flow path of the aerosol.

A granular material effect system includes a plurality of granular particles disposed in a container, a nozzle configured to activate to direct a fluid into the container, an actuator coupled to a prop and disposed in the container within the plurality of granular particles, and a controller communicatively coupled to the nozzle and the actuator. The controller is configured to instruct the nozzle to activate to direct the fluid into the container and to instruct the actuator to move the prop relative to the container while the nozzle is activated.