A projector includes: a light source that emits light of a first color and a second color; a first image formation element that forms a first image light of the first color; a second image formation element that forms a second image light of the second color; a projection lens that projects the first image light and the second image light to the outside; a first optical system that guides light of the first color that is emitted from the light source to the first image formation element, and guides light of the first color from the first image formation element to the projection lens; and a second optical system that guides light of the second color that is emitted from the light source to the second image formation element, and guides light of the second color from the second image formation element to the projection lens.

The present invention concerns a projection system for providing a distributed manifestation within an environment. The projection system includes a data generator for generating a plurality of data sets of associated state data and spatial coordinate data. The projection system also includes a projector in communication with the data generator for receiving the data sets. The projector is provided with a signal generating module for generating a plurality of electromagnetic signals, and a projecting module for projecting each of the electromagnetic signals towards a target location within the environment. The projection system also includes a plurality of receiving units distributed within the environment, each receiving unit having a receiver for receiving one of the electromagnetic signals when the receiving unit is positioned in the corresponding target location, each receiving unit being adapted to perform a change of state in response to the state data.

Projection systems and/or methods comprising a blurring element are disclosed In one embodiment, a blurring element may comprise a first plate having a pattern on a first surface and second plate. The first plate and the second plate may comprise material having a slight difference in their respective index of refraction. In another embodiment, a blurring element may comprise a first plate having a pattern thereon and a second immersing material. The blurring element may be placed in between two modulators in a dual or multi-modulator projector system. The blurring element may be configured to give a desired shape to the light transmitted from a first modulator to a second modulator.

A method of projecting imagery. In one embodiment, the method comprises projecting on a surface, from a projector device, a projected image of a matte displayed on a display device; adjusting the size, shape, position, orientation, or any combination thereof, of the projected image of the matte by adjusting the matte displayed on the display device; associating imagery content with the matte; and projecting the associated imagery in the projected image of the matte.

A cooling device according to an embodiment of the invention includes an axial-flow fan and a heat sink having a fin assembly in which a recess portion is formed on a side thereof which faces the axial-flow fan to thereby provide a cooling device in which a space necessary for cooling is reduced, a light source unit including the cooling device and a projector including the light source unit.

An optical system for capturing an image using compressive sensing includes: a digital micromirror device (DMD) array; an optical lens system; a first optical detector array; a first optical channel for projecting spatial information onto the first detector array; a second optical detector array; a second optical channel; a spectral filter and a polarization filter for projecting spectral and polarization information onto the second detector array; and an image processor to control the DMD array to generate a first and a second set of samples of the image using a sampling rate lower than required by the Shannon-Nyquist sampling theorem, and to reconstruct the image from the samples collected and digitized by the first and second optical detector arrays.

The present disclosure discloses a micro-mirror array, and a backlight module and a display device using the same. Each reflection mirror in the micro-mirror array comprises a first axis of deflection and a second axis of deflection perpendicular to the first axis of deflection, and a deflection angle of the reflection mirror is controlled individually and continuously. The backlight module comprises a light source, a micro-mirror array and a control unit. The control unit adjusts a deflection angle of each reflection mirror in the micro-mirror array in response to a backlight control signal, so that depending on the backlight control signal, the micro-mirror array reflects light emitted from the light source evenly to an entire surface of the display screen or converges the light to one or more areas of the display screen.

An optical system that includes a micro-mirror array optical modulator that can selectively modulate an incident light beam having a defined narrow spectral bandwidth to encode data thereon based on commands to an ON-state or an OFF-state of a micro-mirror. The micro-mirror array optical modulator can redirect light by diffraction and reflection to provide an output modulated light beam that exhibits a diffraction handedness dependent described by an arrangement of diffraction orders that depend in part on the narrow spectral bandwidth of light incident thereupon. An optical element has an optimized limiting aperture for defining portions of a modulated light beam that are blocked and remaining portions that are transmitted. An ON-state efficiency and an OFF-state contrast of an optically transmitted modulated light beam can depend on the diffraction handedness of the output modulated light beam relative to a size and a shape of the optimized limiting aperture.

Dual or multi-modulation display systems comprising a first modulator and a second modulator are disclosed. The first modulator may comprise a plurality of analog mirrors (e.g. MEMS array) and the second modulator may comprise a plurality of mirrors (e.g., DMD array). The display system may further comprise a controller that sends control signals to the first and second modulator. The display system may render highlight features within a projected image by affecting a time multiplexing scheme. In one embodiment, the first modulator may be switched on a sub-frame basis such that a desired proportion of the available light may be focused or directed onto the second modulator to form the highlight feature on a sub-frame rendering basis.

The present invention concerns a projection system for providing a distributed manifestation within an environment. The projection system includes a data generator for generating a plurality of data sets of associated state data and spatial coordinate data. The projection system also includes a projector in communication with the data generator for receiving the data sets. The projector is provided with a signal generating module for generating a plurality of electromagnetic signals, and a projecting module for projecting each of the electromagnetic signals towards a target location within the environment. The projection system also includes a plurality of receiving units distributed within the environment, each receiving unit having a receiver for receiving one of the electromagnetic signals when the receiving unit is positioned in the corresponding target location, each receiving unit being adapted to perform a change of state in response to the state data.