The invention provides a projection device, comprising an illumination system, a light valve, a light guide element, an optical module and a projection lens. The optical module comprises a fixed portion, a first frame body, at least one first driving element and an optical element. The first frame body is pivoted to the fixed portion and comprises a first side and other three second sides. The first driving element is configured on at least one of the other three second sides and configured to drive the first frame body to oscillate back and forth. A first virtual plane of the projection lens intersects with a second virtual plane of the light valve to form a virtual line segment. The distance between the first side and the virtual line segment is shorter than the distance between the other three second sides and the virtual line segment.

A projection screen for diffusing illumination light into a range of viewing angles is formed by depositing a coating on a substrate. Within the coating are particles having an average particle height. Protrusions at least two microns higher than the average particle height may be substantially uniformly distributed over the screen. In some embodiments, each protrusion may be no closer than 80 microns to another protrusion.

The invention provides a projection device, comprising an illumination system, a light valve, a light guide element, an optical module and a projection lens. The optical module comprises a fixed portion, a first frame body, at least one first driving element and an optical element. The first frame body is pivoted to the fixed portion and comprises a first side and other three second sides. The first driving element is configured on at least one of the other three second sides and configured to drive the first frame body to oscillate back and forth. A first virtual plane of the projection lens intersects with a second virtual plane of the light valve to form a virtual line segment. The distance between the first side and the virtual line segment is shorter than the distance between the other three second sides and the virtual line segment.

The disclosure proposes a projector system and a projector setting method. The projector system includes: a plurality of projectors including a first projector and at least one second projector, wherein the first projector is connected to the at least one second projector via a network. The first projector receives a plurality of set values and stores the set values as a configuration. The first projector acquires an Internet Protocol address corresponding to the at least one second projector. The first projector receives a copy command, and transmits the configuration to the at least one second projector according to the Internet Protocol address of the at least one second projector. The at least one second projector performs a setting operation according to the configuration. The projector setting method suitable for the projector system. In the disclosure, the configuration can be copied between a plurality of projectors faster and more conveniently.

The disclosure proposes a projector system and a projector setting method. The projector system includes: a plurality of projectors including a first projector and at least one second projector, wherein the first projector is connected to the at least one second projector via a network. The first projector receives a plurality of set values and stores the set values as a configuration. The first projector acquires an Internet Protocol address corresponding to the at least one second projector. The first projector receives a copy command, and transmits the configuration to the at least one second projector according to the Internet Protocol address of the at least one second projector. The at least one second projector performs a setting operation according to the configuration. The projector setting method suitable for the projector system. In the disclosure, the configuration can be copied between a plurality of projectors faster and more conveniently.

A method and apparatus for controlling a projector are provided. A specific embodiment of the method includes: determining position information of a target position in a to-be-projected area; determining a scanning power of scanning the target position based on a pre-generated scanning power table and the position information of the target position, the scanning power table used for characterizing a corresponding relationship between the scanning power and the position information; adjusting a tilt angle of a reflector to change the tilt angle of the reflector, and to enable a light beam incident onto the reflector to be reflected to the target position; and controlling a light source to emit the light beam to the reflector at the determined scanning power. The embodiment has achieved scanning a to-be-projected area at an adjustable scanning power.

A method and apparatus for controlling a projector are provided. A specific embodiment of the method includes: determining position information of a target position in a to-be-projected area; determining a scanning power of scanning the target position based on a pre-generated scanning power table and the position information of the target position, the scanning power table used for characterizing a corresponding relationship between the scanning power and the position information; adjusting a tilt angle of a reflector to change the tilt angle of the reflector, and to enable a light beam incident onto the reflector to be reflected to the target position; and controlling a light source to emit the light beam to the reflector at the determined scanning power. The embodiment has achieved scanning a to-be-projected area at an adjustable scanning power.

In one aspect, a light assembly system configured to be installed in a movie theatre projector includes a light assembly, which includes an adaptor configured to mechanically couple to a bulb mount of the movie theatre projector, LEDs attached to a primary LED Emitter mounting plate, a cooling assembly configured to dissipate heat from the primary LED Emitter mounting plate and a lens configured to collimate light emitted from the LEDs. The light assembly system also includes a light assembly control system, separate from an existing control system of the movie theatre projector, that is configured to control operation of the light assembly.

The present invention provides a multi-projection system including a plurality of projection surfaces, on which images are projected, which are arranged to surround an auditorium, and the plurality of projection surfaces comprise different types of projection surfaces. According to the present invention, it is possible to provide an audience with an image with high three-dimensional effect and immersion and provide images of multiple viewpoints such that the audience can feel as if they are in a space created by the images.

In one aspect, a light assembly system configured to be installed in a movie theatre projector includes a light assembly, which includes an adaptor configured to mechanically couple to a bulb mount of the movie theatre projector, LEDs attached to a primary LED Emitter mounting plate, a cooling assembly configured to dissipate heat from the primary LED Emitter mounting plate and a lens configured to collimate light emitted from the LEDs. The light assembly s also includes a light assembly control system, separate from an existing control system of the movie theatre projector, that is configured to control operation of the light assembly.