When a camera detects light which satisfies a first condition and with which a projection surface is irradiated by a pointing apparatus in captured images formed by capturing the projection surface, the camera selects at least one of a plurality of control points as a control point in a selected state based on the position of the light which satisfies the first condition in the captured images, whereas when the camera detects light which satisfies a second condition different from the first condition and with which the projection surface is irradiated by the pointing apparatus in the captured images, the camera transmits an instruction to change the position of the control point in the selected state to a projector based on a change in the position of the light which satisfies the second condition and is detected in the captured images.

An aerial display apparatus according to one embodiment is an aerial display apparatus displaying a virtual image in the air. The aerial display apparatus includes: a display apparatus irradiating with light to display information; a retroreflective member reflecting the light from the display apparatus multiple times to display a virtual image in the air; an infrared-ray transmission/reception unit transmitting and receiving infrared rays used as data through the retroreflective member; a control unit transmitting and receiving a control signal to and from each of the display apparatus and the infrared-ray transmission/reception unit; and a housing accommodating the display apparatus and the infrared-ray transmission/reception unit. The retroreflective member is mounted on an opening formed in the housing, and the display apparatus and the infrared-ray transmission/reception unit are arranged inside the housing.

A display system and a method of forming a display are disclosed. A beam is formed from a first substantially flat substrate, a sidewall is formed from a second substantially flat substrate, and a panel is formed from a third substantially flat substrate. The beam includes a first slot, the sidewall is joined to an end of the beam and includes a second slot, and the panel includes an interior portion and first and second tabs extending outwardly from the interior portion. The first tab is inserted into the first slot and the second tab is inserted into the second slot to secure the panel to the beam and the sidewall.

A device for projecting a test pattern for evaluating the image-capturing properties of a lens module includes a light emitting assembly. The light emitting assembly includes a light emitter and a patterning plate on the light emitter. The patterning plate includes a first surface facing the light emitter and a second surface opposite to the first surface. The second surface is concave and defines a patterning groove. The light from the light emitter passes through the patterning groove to form an original pattern for testing, the display of a test pattern being instantly selectable and displayable.

A projection system of the present disclosure includes: a light source that outputs light of a plurality of colors; a display panel that includes a light modulation element provided for each pixel, and modulates the light outputted from the light source; a projection optical system that projects light having passed through the display panel; and a controller that controls light output of each color of the light source in a time-axis direction. This configuration is adopted to achieve an improvement in brightness of a projected image/a screen and prevention of color mixing in field sequential driving.

A wavelength-converting device has a light incident side. The wavelength-converting device includes an inner annular portion and an annular portion. The annular portion is connected to an outer edge of the inner annular portion. The annular portion includes a wavelength-converting portion, a first heat-conductive bonding medium, a reflective layer, and a wavelength-converting layer. A groove is annularly disposed in the wavelength-converting portion, and the groove is recessed from the light incident side of the wavelength-converting device. The first heat-conductive bonding medium is disposed in the groove. The reflective layer is disposed on the first heat-conductive bonding medium. The wavelength-converting layer is disposed on the reflective layer and has a light receiving surface. A projection apparatus is also provided.

An optoelectronic semiconductor device may include a semiconductor body having a first main surface, a first dielectric layer over the first main surface, and a second dielectric layer on a side of the first dielectric layer facing away from the first main surface. The second dielectric layer is patterned to form an ordered photonic structure. The semiconductor body is suitable for emitting or receiving electromagnetic radiation through the first main surface. The first main surface is roughened, and the first dielectric layer is suitable for leveling a roughening of the first main surface.

A projection device includes a first light-emitting component, a second light-emitting component and a housing. The first light-emitting component and the second light-emitting component are fixed to the housing. A first outer surface of the housing is provided with a first light outlet and a second light outlet; the first light-emitting component is arranged corresponding to the first light outlet; the second light-emitting component is arranged corresponding to the second light outlet; and the first light outlet has a larger area than the second light outlet, such that a projection range of the second light-emitting component is within that of the first light-emitting component. The disclosure can avoid the defect of a single effect of a lamp cap of a projection lamp in the scope of the prior art.

A method for semi-dense depth estimation includes receiving, at an electronic device, a control signal of a speckle pattern projector (SPP and receiving from each sensor of a dynamic vision sensor (DVS) stereo pair, an event stream of pixel intensity change data, wherein the event stream is time-synchronized with the control signal of the SPP. The method further includes performing projected light filtering on the event stream of pixel intensity change data for each sensor of the DVS stereo pair, to generate synthesized event image data, the synthesized event image data having one or more channels, each channel based on an isolated portion of the event stream of pixel intensity change data and performing stereo matching on at least one channel of the synthesized event image data for each sensor of the DVS stereo pair to generate a depth map for at least a portion of the field of view.

An optic providing reduction in secondary or ghost images includes a beam splitter, a reflective surface, and at least one baffle therebetween. A transmissive surface may be located between the beam splitter and the reflective surface. The baffle is positioned to intercept internally reflected ghost rays while being substantially parallel to outside light rays along a line of sight of the viewer, permitting use in see-through optics. The baffles may be formed of diffusing structures, light absorbing material, and combinations of both. Baffles intercept and scatter or absorb ghost rays to the exclusion of projected image rays that provide a desired projected image which are internally reflected through the optic. An assembly including such optic integrated with a wearable vision system, such as a head-mounted display, is also disclosed for near-eye application.