Provided is an image display device including: a light source part (200) for emitting coherent light; and a plurality of phase shift elements (301) arranged in two-dimensional directions, the device further including a phase shift part (300) for scanning the wavefront of the coherent light from the light source part (200) in two-dimensional directions, in which light is scanned in the two-dimensional directions by a phased array to thereby allow an observer to observe an image.

An image display device 1 includes a laser light source unit 10, a screen 12 formed of at least two diffusion members, a vibration mechanism 13 vibrating at least one diffusion member, and a scanning element 11 scanning laser light in a first direction (a y direction) on the screen and a second direction (an x direction) orthogonal to the first direction. A scanning speed of the scanning element 11 in the second direction is faster than a scanning speed in the first direction, and a diameter D of the laser light in the first direction on the screen is greater than an interval Yp in the first direction on the scanning trajectory in the second direction on the screen. Accordingly, it is possible to provide an image display device displaying an image having a low speckle with high luminance, without vibrating the diffusion member at a high speed.

Each of a plurality of optical elements that are arrayed in a lattice pattern in a screen member which diffuses a laser beam incident from a projector to guide the laser beam toward a projection surface has a curved surface on a side thereof, and the curved surface has a common convexly curved shape, and diffuses the laser beam which is emitted from the curved surface toward the projection surface. The respective optical elements include a plurality of reference elements which serve as a reference and a plurality of peripheral elements which are adjacent to the respective reference elements. The respective reference elements and the respective adjacent peripheral elements are formed by offsetting surface vertexes of the curved surfaces in a stepwise manner. Offset amounts generated between the respective reference elements and the respective adjacent peripheral elements are different from each other.

A projection apparatus includes a projection cavity, a light source, a scanning motor, and a processor. The light source and the scanning motor are located inside the projection cavity, and the processor is connected to both the light source and the scanning motor. A reflection layer is disposed on a scanning mirror of the scanning motor, where the reflection layer is configured to reflect light emitted by the light source.

The present invention is directed to a laser light source.

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.

The present invention is directed to a laser light source for a vehicle.

Head worn computers may include two physically separated cameras mounted on a front surface that capture movements of a finger of the user of the head-worn computer. The head worn computer includes an image source adapted to display content in a see-through display of the head-worn computer, wherein the content is positioned to be perceived by a user as positioned on a surface proximate the head-worn computer. A processor of the head worn computer is adapted to develop a 3D model, based on the captured finger movements and the position of the content, describing an interaction of the finger with the content.

The present application discloses a beam combining device, which includes a reflective diffractive grating surface configured to combine a first, a second and a third incident light beam having different colors to a single diffracted mixed-color light beam when impinging on the reflective diffractive grating surface, wherein a profile of the grating surface is configured according to an optimization criterion with respect to a diffraction efficiency.

The present technology relates to an information processing apparatus and method that enable characteristics of a projection image to be varied locally. An information processing apparatus according to the present technology controls a first projection unit to project a first image onto an image projection surface and controls a second projection unit to project a second image in an attention area as a predetermined partial area of the first image projected onto the image projection surface by the first projection unit. The present technology is applicable to electronic apparatuses including a projector function or both the projector function and a camera function, a computer that controls the electronic apparatuses, and the like.