A projector, an image projection method, and a recording medium storing a program. The projector includes a color wheel configured to divide light by time into light rays of a plurality of colors including at least a first color and a second color, the light forming an image to be projected, an image generator configured to generate the image including a plurality of pixels from the light rays divided by time by the color wheel, a shifting member configured to shift the plurality of pixels of the image formed by the first color and the second color, with varying shifting speeds, a color-wheel controller configured to control the color wheel, a shifting controller configured to control the shifting member, and a timing controller configured to generate a first timing signal for controlling timings of the color wheel and a second timing signal for controlling timings of the shifting member.

In at least one embodiment, a projector includes an operation reception unit, and selection unit, and a correction unit. The operation reception unit receives an input operation. The selection unit allows selection of one of a plurality of controlled objects located in correspondence with vertices of a contour of an image based on image information and sides of the contour. The correction unit allows movement of the controlled object selected by using the selection unit within the image based on the input operation and corrects the contour of the image based on the moved controlled object.

The present invention relates to a projector comprising: a housing; a projection part for projecting an image; a projection lens module for expanding and projecting, on an outside screen, the image projected from the projection part; and a position adjustment part for controlling the positions of a first direction and a second direction of the projection lens module. The position adjustment part comprises: a first fixed bracket fixed to the housing and comprising an opening part through which a projection lens passes; a first moving bracket positioned on one surface of the fixed bracket and enclosing the circumference of the projection lens; a second moving bracket positioned on one surface of the first moving bracket and enclosing the circumference of the projection lens; a screw coupled to the first moving bracket in the first direction; a first dial exposed to the outer side by being coupled to the end part of the screw; a second dial positioned in a ring-shape on the circumference of the first dial; and a gear module for moving the second moving bracket in the second direction when the second dial rotates.

The disclosed structured light projector may include (1) a light source having a light-emitting side that emits light, (2) a solid optical spacer element having a first side securely coupled to the light-emitting side of the light source, and (3) a diffractive optical element (DOE) stack including one or more DOEs, where the DOE stack includes (a) a light-receiving side securely coupled to a second side of the solid optical spacer element opposite the first side, and (b) a light-emitting side opposite the light-receiving side that emits structured light in response to the light received from the light-emitting side of the light source via the solid optical spacer element. Various other devices and methods are also disclosed.

In an illustrative embodiment, methods and systems for image projection include a beam director having a surface region geometrically encoded with an image such that, when a beam profile created from a beam strikes a portion of the surface region of the beam director, an altered beam profile is created incident to the portion of the surface region, where the altered beam profile has a light beam pattern configured to present a portion of the image, and the altered beam profile includes a predetermined beam spacing, a predetermined beam size, and a predetermined beam shape. The beam director may be configured to redirect predetermined beam profiles including the altered beam profile, incident across portions of the surface region of the beam director, as image beam patterns configured to strike a projection surface where the image is displayed.

The disclosed projector device may include (1) a first monochromatic emitter array having a plurality of emitters of a first color disposed in a two-dimensional configuration and (2) a second monochromatic emitter array having a plurality of emitters of a second color disposed in a two-dimensional configuration. The first and second monochromatic emitter arrays may be configured to emit images of the first and second colors into a waveguide configuration, and the first color may be different than the second color. Associated display systems and methods are also provided.

In the imaging optical system that consists of a first optical system and a second optical system in order from a magnified side, and has an intermediate image formed between the first optical system and the second optical system, a focus group moving during focusing is included between a most magnified side of the first optical system and a position at which a principal ray of light having a maximum angle of view and an optical axis of the first optical system intersect each other, and a predetermined conditional expression relating to the focus group is satisfied.

A projection device includes a projection module and a first camera module. The projection device has a first optical axis and configured to form a projection area, wherein a projection of the first optical axis on an X-Z plane of the projection device is perpendicular to an X-Y plane on which the projection area is formed. The first camera module is disposed on a side of the projection module and includes a second optical axis, wherein the first camera module is configured to form a first shooting area, the second optical axis forms a first angle Δθ1 with respect to the first optical axis, the projection area at least partially overlaps the first shooting area to form an overlapping area, and the first angle Δθ1 is a function of a distance between the projection module and the first camera module.

A projection system includes a screen forming device configured to form a screen by ejecting liquid from a plurality of nozzles and a projector, acquires three-dimensional shape data formed by a three-dimensional coordinate system having an X axis, a Y axis, and a Z axis, divides the three-dimensional shape data in an X-axis direction to generate sectional shape data, acquires coordinates of the sectional shape data, executes matching processing for correlating the coordinates of the sectional shape data, pixels with which the projector draws an image, the nozzles of the screen forming device, and heights in an ejection space of the liquid ejected from the nozzles, and projects an image onto the screen according to the correlation by the matching processing.

A projection apparatus has an optical device configured to be capable of diffusing coherent light beams, an irradiation unit configured to irradiate the coherent light beams to the optical device so that the coherent light beams scan the optical device, a light modulator that is illuminated by coherent light beams incident on and diffused at respective points of the optical device from the irradiation unit, a projection optical system configured to project a modulated image generated by the light modulator onto a scattering plane, and an intermediate optical system provided between the optical device and the light modulator, configured to restrict an diffusion angle of coherent light beams diffused by the optical device.