A vehicle headlight (1), which is one aspect of a vehicle illumination lamp, includes: light sources (52R, 52G, 52B), and diffraction gratings (54R, 54G, 54B) for diffracting light incident from the light sources (52R, 52G, 52B). The light diffracted by the diffraction gratings (54R, 54G, 54B) is irradiated in a predetermined light distribution pattern. A projection area (AR) to which are projected components (LC.sub.R, LC.sub.G, LC.sub.B) advancing and passing through the diffraction gratings (54R, 54G, 54B) among the light incident on the diffraction gratings (54R, 54G, 54B) is positioned below the light distribution pattern and within a range (RNG) in which a field of view of a driver of a vehicle is obstructed by the vehicle.

Optical apparatus includes a plurality of emitters arranged in a row and configured to emit respective beams of optical radiation. Projection optics, which are configured to project the beams toward a target, include first cylindrical lenses, which have respective, mutually-parallel first cylinder axes and are aligned respectively with the emitters in the row so as to receive and focus the respective beams in a first dimension, and a second cylindrical lens, which has a second cylinder axis perpendicular to the first cylinder axes and is positioned to receive and focus all of the beams in a second dimension, perpendicular to the first dimension. A scan driver is configured to shift the second cylindrical lens in a direction perpendicular to the second cylinder axis so as to scan the beams across the target.

An optical system is provided. The optical system includes an image generator configured to output image signals for configuring a virtual image, and an infrared (IR) image signal, a multipath optical element configured to guide the beams, a diffraction grating configured to diffract parts of the output beams and transmit other parts of the output beams, an outcoupler configured to allow the diffracted beams to exit the multipath optical element, a first camera configured to sense a pattern of reflection of an IR beam exiting the outcoupler, an IR filter diffraction element, a second camera configured to sense a pattern of reflection of the IR beam projected toward the real world, and a processor configured to determine a line of sight of a user based on the pattern sensed by the first camera, and to determine depth information of the object based on the pattern sensed by the second camera.

Provided herein is a multifunctional aesthetic system including a housing, an electromagnetic array situated in the housing and having a plurality of electromagnetic radiation (EMR) sources, each EMR source configured to generate an EMR beam having a wavelength different than that of an EMR beam generated by another of the EMR sources, a controller in electronic communication with the array to operate two or more of the EMR sources to direct the EMR beam to a treatment area, and a sensor in electronic communication with the controller for providing feedback to the controller based on defined parameters to allow the controller to adjust at least one operating condition of the multifunctional system in response to the feedback.

An optical integration device includes a first circuit layer comprising a first surface adjacent a first diffractive layer, the first diffractive layer arranged on a side of the first circuit layer along a first direction, and a first connecting pad electrically connected with the first circuit layer through a first conductive member. The optical integration device includes a side surface extending along the first direction. The side surface defines a first concavity extending through the first diffractive layer along the first direction. The first connecting pad includes a first mounting member connected with the side surface, and a first convex member extending from the first mounting member and received in the first concavity. The first conductive member includes a first conductive part arranged between the side surface and the first mounting member, and a second conductive part arranged between the first surface and the first convex member.

A lighting device includes: a light-emitting element having multiple first light-emitting sections and multiple second light-emitting sections; a first optical member that causes multiple pieces of first light outputted from the multiple first light-emitting sections and multiple pieces of second light outputted from the multiple second light-emitting sections to be substantially collimated, and outputs the multiple pieces of first light and the multiple pieces of second light; and a second optical member that shapes beam shapes of the multiple pieces of first light, beam shapes of the multiple pieces of second light, or both the beam shapes of the multiple pieces of first light and the multiple pieces of second light, and outputs the multiple pieces of first light and the multiple pieces of second light in a manner that the beam shapes are different between the multiple pieces of first light and the multiple pieces of second light.

A LIDAR device for detecting an object comprising a transmitter unit having at least one laser for emitting at least one laser beam; and a receiver unit for receiving laser light that was reflected by the object. The transmitter unit further has at least one beam replication unit for replicating the at least one laser beam to form at least two replicated beams.

A lighting device and method for manufacturing the lighting device are provided. A substrate contains at least a first surface and a second surface opposing the first surface. Light-sensitive material is provided on the first surface and/or the second surface. The light-sensitive material is exposed to light by applying the light from a light source onto a mask having a periodic pattern of light-attenuating features with interspaced light-permeable features. The light forms a periodic distribution of high intensity regions with interspaced low intensity regions at the first surface and/or the second surface. A periodic structure is formed based on the exposed light-sensitive material and includes light-attenuating features and light-permeable features corresponding to the light-attenuating features and light-permeable features of the mask.

A waveguide illuminator includes an input waveguide, a waveguide splitter coupled to the input waveguide, and a waveguide array coupled to the waveguide splitter. The waveguide array includes an array of out-couplers out-coupling portions of the split light beam to form an array of out-coupled beam portions for illuminating a display panel. Locations of the array of out-couplers are coordinated with locations of individual pixels of the display panel, causing each light beam portion to propagate through a corresponding pixel of the display panel, thereby improving efficiency of light utilization by the display panel.

Examples of light projector systems and methods of use. A method can include providing an optical device having a first surface, a second surface normal to the first surface, and a third surface arranged at an angle to the second surface. The third surface can be reflective to light of a first state and transmissive to light of a second state. An input beam having the first state can be normally incident on the first surface. A transmissive diffractive optical element on the first surface can convert the input beam into at least a first diffracted beam directed toward the third surface, where it is reflected by the third surface in a direction substantially parallel to the first surface. The reflected first diffracted beam can be modulated with image information using a spatial light modulator to produce a modulated light beam having the second state.