A display system (500) for displaying an image to an eye of a user includes a light-guide optical element (LOE) (506) and an image projector (512) projecting image illumination of a collimated image into the LOE. The image projector includes an electrically-controllable variable lens (10, 13, 71, 77, 58A, 58B, 59, 58C, 58D, 58E, 58F1, 58F2, 58G1, 58G2, 58H, 1223). A controller (18) determines a current region of interest of the image, either from tracking of the user's eye or by analysis of the image content, and controls the variable lens so as to reduce aberrations in the current region of interest at the expense of increased aberration in at least one area of the image outside the current region of interest.

An optical path control apparatus includes an oscillating part. The oscillating part has an optical part on which light is made incident, a first oscillating part for supporting the optical part, and a second oscillating part for supporting the first oscillating part in an oscillatable manner by a first shaft part and being supported on a support part in an oscillatable manner by a second shaft part. The optical path control apparatus includes a first actuator configured to oscillate the oscillating part about a first oscillation axis including the first shaft part as a support; and a second actuator configured to oscillate the oscillating part about a second oscillation axis including the second shaft part as a support. The first oscillation axis crosses the second oscillation axis. The torsional rigidity of the second shaft part is higher than the torsional rigidity of the first shaft part.

A projecting system includes an image projector that includes an optical source and that projects an image on a projected surface; and a processor. The processor obtains brightness information regarding brightness around the projected surface. The processor selects at least one item among a total luminous flux of the optical source, a color gamut of the image, and a size of the image. The processor adjusts the item that is selected based on the brightness information.

A projection apparatus with an automatic adjustment function and an automatic projection adjustment method thereof are provided. The projection apparatus includes a control device, a projection device and a ranging device. The projection device is coupled to the control device. The ranging device is coupled to the control device. The control device operates the ranging device to perform multi-point ranging within a projection range of the projection device and on a projection surface. The control device determines whether a position of the projection range is suitable for projection according to a plurality of first distance values of a plurality of detection points provided by the ranging device, so as to adjust the projection range. The projection apparatus has an effect of accurate and automatic projection adjustment.

A light guide optical device includes an optical path combiner including: a first deflector to deflect first light incident from a first direction to an emission direction; a second deflector to deflect second light incident from a second direction different from the first direction, to the emission direction; and a transmission portion between the first deflector and the second deflector, the transmission portion to transmit third light incident from a third direction different from each of the first direction and the second direction, to the emission direction. The optical path combining unit combines the first light, the second light, and the third light, and emits the combined light to the mission direction.

A projection system and a projected image stacking method are provided, in the method, an individual representative position of each captured image is identified, wherein the captured images are obtained by respectively capturing an area projected by multiple projectors, and each individual representative position is related to image content projected by each projector. A common representative position is set in the area. A projection lens of each projector is shifted according to a distance difference between each individual representative position and the common representative position. In this way, the projection lens is quickly shifted, and is further applied to stacking operations. The operation of multiple projectors is as convenient as the operation of a single projector based on control of a remoter or keys of a projector control interface.

Aspects of the present invention relate to methods and systems for the see-through computer display systems with adjustable-zoom cameras positioned such that their respective capture fields-of-view at least partially overlap at a target distance.

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.

An apparatus for high dynamic range (HDR) modulation includes one or more lasers configured to transmit respective beams of laser light with a single color mode and a PLM optically coupled to the one or more lasers. The PLM is configured to modulate the laser light to produce a first modulated light. The apparatus also includes a phosphor optically coupled to the PLM and configured to receive at least a first portion of the first modulated light from the PLM and to emit a phosphor light with multiple color modes. At least one spatial light modulator (SLM) is also optically coupled to the phosphor and configured to modulate the multiple color modes in the phosphor light and the single color mode to project a second modulated light.

An image processing device includes: an image acquisition unit that acquires first and second image data for projecting the image from the first and second projection units respectively; a superimposed region information acquisition unit that acquires information on a superimposed region between the projection range of the first projection unit and the projection range of the second projection unit; a first image processing unit that performs first image processing on a first portion in the first image data corresponding to the superimposed region; a second image processing unit that performs second image processing on a second portion in the second image data corresponding to the superimposed region; and an output unit that outputs the first image data after the first image processing as image data for the first projection unit and outputs the second image data after the second image processing as image data for the second projection unit.