The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

A projector includes a lamp unit, a color separation system that separates first light outputted from the lamp unit into a plurality of color beams, a plurality of liquid crystal panels that modulate the plurality of separated color beams from the color separation system, reduction optical systems that reduce at least one of pencils of light formed of the plurality of color beams modulated by the plurality of liquid crystal panels, a light combining prism that combines the plurality of reduced color beams with one another, and a projection lens that projects second light that is the combined light from the light combining prism. The reduction optical systems are disposed between the liquid crystal panels and the light combining prism, and the area of an effective display region of each of the liquid crystal panels is greater than an effective area of each light incident surface of the light combining prism.

A light assembly having a projector integrally connected to a light bar. The projector and the light bar share power and control wires from a wire harness. The projector includes a projector aperture whereby light (oftentimes in a pattern or logo formation) passes therethrough and directs onto a ground surface. The projector includes a light assembly configured to hold the components for projection.

A projection system includes projection devices and a control device. Each projection device is configured to provide first, second, and third light beams of different wavelengths. The projection devices include processors and light valves. The processors include first, second, and third processors. The light valves include first, second, and third light valves. Each of the processors is connected to one of the light valves. The control device respectively provides first, second, and third signals to the first, second, and third processors. The first, second, and third processors respectively control the first, second, and third light valves to provide the first, second, and third light beams in turn according to the first, second, and third signals, so as to generate an image beam; in the same time sequence, the light beams provided by the first, second, and third valves controlled by the first, second, and third processors have different wavelengths.

A light homogenizing element comprising a light incident surface, a light-emitting surface and a plurality of side surfaces is provided. The plurality of side surfaces are connected between the light incident surface and the light-emitting surface, the light-emitting surface is not parallel to the light incident surface, and the light-emitting surface includes a first side and a second side opposite to the first side, and the first side is not parallel to the second side. A projection device using the light homogenizing element is also provided.

The present invention includes systems and methods for a multi-primary color system for display. A multi-primary color system increases the number of primary colors available in a color system and color system equipment. Increasing the number of primary colors reduces metameric errors from viewer to viewer. One embodiment of the multi-primary color system includes Red, Green, Blue, Cyan, Yellow, and Magenta primaries. The systems of the present invention maintain compatibility with existing color systems and equipment and provide systems for backwards compatibility with older color systems.

A light source apparatus configured to emit light includes a condenser unit configured to reflect light from a light source and to condense the light on a condensing point, a light shielding unit disposed on an optical path of the light from the condenser unit, and a reflector unit disposed between the condenser unit and the light shielding unit and configured to reflect the light from the condenser unit. The reflector unit is disposed so that reflected light is condensed by the condenser unit toward the condensing point.

A lens shift mechanism of one embodiment of the present disclosure includes: a projection lens; a cylindrical housing that holds the projection lens; and an operating unit that moves the cylindrical housing in one axial direction perpendicular to an optical axis of the projection lens. The operating unit includes a pair of a main shaft and a countershaft extending in the one axial direction and disposed to be opposed to each other across the cylindrical housing, and a pair of elastic bodies provided respectively for the main shaft and the countershaft. The pair of elastic bodies are parallel to the one axial direction, and have biasing directions opposite to each other.

A projector display system comprises a projector and a laminate glass panel comprising first and second glass layers and an assembly of interlayers sandwiched therebetween. The first glass layer is substantially parallel to the second glass layer and the assembly of interlayers includes a reflective polarizer film. The reflective polarizer film of the laminate glass panel has a predetermined range of incident angles defined by an upper limit and a lower limit, wherein when the image is projected onto the laminate glass panel at an incident angle within the predetermined range of incident angles, the reflective polarizer film is adapted to reflect a minimum threshold amount of a first polarized light component of the said image. The projector projects an image onto the laminate glass panel at a selected incident angle that is at least 30° less than the lower limit of the said predetermined range of incident angles.

Provided are a method and an apparatus for correcting a color convergence error. The method includes: in a dark room environment, collecting a projection light point on a projection screen projected by a projection system, to obtain a projection image; adjusting the test pattern, so that a first projection light point corresponding to the white point of a first coordinate on the test pattern after being projected by a first color light source is located in a center of the projection image; obtaining a second and/or a third projection light points corresponding to the white point of the first coordinate after being projected by a second and/or a third color light sources from the projection image; and adjusting an assembly parameter of the projection system according to a position of the second and/or the third projection light points and a position of the first projection light point.