A projector with a detection function according to the present disclosure includes: a projection optical system that projects image light on a projection plane; an irradiation optical system that generates an irradiation beam on the basis of light obtained from a light source, and outputs the irradiation beam, in which the irradiation beam is used for detection of a detection object on the projection plane, and the detection object is configured to be detected; an imaging device that scattered light of the irradiation beam derived from the detection object enters; and an illumination control section that performs temporal light-quantity modulation of the light obtained from the light source to cause coherence of the irradiation beam to be reduced.

A novel projection system includes a light source, a phase modulator, an amplitude modulator, and a controller having temporal lightfield simulation capabilities. The phase modulator spatially modulates a lightfield from the light source to generate an intermediate image on the amplitude modulator. The amplitude modulator spatially modulates the intermediate image to form a final image. The controller models the phase state of the phase modulator during transitions between phase modulator frames and generates lightfield simulations of the intermediate image during the transition. The controller utilizes the lightfield simulations to generate and provide sets of amplitude drive values to the amplitude modulator at a faster rate than that at which the phase modulator is capable of switching.

An illumination system, a projection device, and a projection control method are provided. The illumination system includes a first light-emitting unit, a second light-emitting unit, a third light-emitting unit, a first dichroic element, a second dichroic element, and a control unit. The first light-emitting unit includes a first light-emitting element and a second light-emitting element. The control unit is electrically connected to the first light-emitting unit and configured to switch the illumination system between a high-performance mode and a high-chroma mode, wherein when the illumination system is in the high-performance mode, the control unit controls a current ratio of the second light-emitting element to be greater than a current ratio of the first light-emitting element, and when the illumination system is in the high-chroma mode, the control unit controls the current ratio of the second light-emitting element to be less than the current ratio of the first light-emitting element.

A projection device and its display method are provided. The projection device includes a light source module, a control device, a light valve module, and a lens module. The light source module provides an illumination beam and includes first and second light sources respectively emitting first and second sub-color beams and a driving circuit driving the first and second light sources. The illumination beam includes the first and second sub-color beams. The light valve module converts the illumination beam to an image beam. The lens module projects the image beam. The projection device is configured to have multiple color gamut modes. In at least partial time of a first time slot, the control device controls the driving circuit to simultaneously drive the first and second light sources.

A wearable heads-up display has stored therein two or more distortion models for use in generating distorted source images that when projected by the wearable heads-up display into a target eye space form virtual images are aligned in the target eye space. A method and system for determining the distortion models are disclosed.

An electronic device comprises a projector that is configured to project an image and a control unit. The control unit is configured to control an orientation of the image to be projected to a first orientation when the electronic device is in a first attitude, and to control the orientation of the image to be projected to a second orientation different from the first orientation when the electronic device is in a second attitude different from the first attitude.

A display has a screen which incorporates a light modulator. The screen may be a front projection screen or a rear-projection screen. The screen is illuminated with light from a light source comprising an array of controllable light-emitters. The controllable-emitters and elements of the light modulator may be controlled to adjust the intensity of light emanating from corresponding areas on the screen. The display may provide a high dynamic range.

A light source apparatus includes a first solid light source, a second solid light source configured to emit light with a wavelength different from that from the first solid light source, and a controller configured to control turning on of the first and second solid light sources. The controller turns on the second solid light source while maintaining turning on the first solid light source after turning on the first solid light source.

A projection display device of a front projection type includes a light valve that modulates light based on image data and emits the light and an image forming optical system that projects an optical image of the light modulated by the light valve onto a projection surface, in which the image forming optical system includes a first optical system that includes at least one lens and a first reflection member that reflects the light emitted from the light valve toward the first optical system, the first optical system and the first reflection member are configured to be rotatable in a pitch direction, and the first reflection member rotates by a pitch angle θ/2 in conjunction with rotation of the first optical system by a pitch angle θ.

An image correction method performed by a projector, the method including projecting a second image onto a projection surface, the second image is acquired by reducing a first image containing a plurality of candidate points that are candidates for display position correction to a size that falls within a projection area that is the largest area over which the projector is capable of projection, accepting a first input to select a target point that is a display position correction target out of the plurality of candidate points in the state in which the second image is projected on the projection surface, projecting a third image onto the projection surface, the third image is acquired by enlarging the second image to the size of the first image after accepting the first input, accepting a second input to change the display position of the target point in the state in which the third image is projected on the projection surface, and projecting a projection image acquired by correcting the shape of an input image based on the second input onto the projection surface.