A laser optical device is provided with a plurality of laser light sources, a collimating lens that has an optical axis that intersects a line connecting the plurality of laser light sources in a plan view viewed from a direction perpendicular to both this line and the optical axis and collimates lights respectively emitted from the plurality of laser light sources, and a deflecting element that deflects a plurality of lights emitted from the collimating lens so output lights where the lights respectively emitted from the plurality of laser light sources are optically processed make contact.

A miniaturized structured light projection module is provided. The miniaturized structured light projection module includes a light source assembly and a projecting lens. The light source assembly has a plurality of light source units, each of which is provided with a default projected pattern on its surface. The projecting lens is disposed above the light source units. The default projected patterns of the light source units are disposed on a front focal plane of the projecting lens.

Provided are projectors, each including a light source configured to emit laser light, a substrate spaced apart from the light source by a distance, a pattern mask including a pattern on a first surface of the substrate, the first surface facing the light source, and a meta-lens including a plurality of first nanostructures on a second surface of the substrate, the second surface facing the first surface, the nanostructures having a shape dimension of a sub-wavelength that is less than a wavelength of light emitted from the light source.

A light source optical system used with an excitation light source configured to emit first color light includes a wavelength conversion unit configured to receive the first color light emitted by the excitation light source and emit second color light with a wavelength different from a wavelength of the first color light, There is a first optical system having a positive power and a second optical system having a positive power provided in this order in an optical path between the excitation light source and the wavelength conversion unit. When a ray parallel to an optical axis of the first optical system is incident on the first optical system, a ray emitted from the first optical system is incident on the second optical system while approaching the optical axis. The second optical system has under-corrected spherical aberration at a paraxial focal position of the second optical system.

A smart light source configured for visible light communication. The light source includes a controller comprising a modem configured to receive a data signal and generate a driving current and a modulation signal based on the data signal. Additionally, the light source includes a light emitter configured as a pump-light device to receive the driving current for producing a directional electromagnetic radiation with a first peak wavelength in the ultra-violet or blue wavelength regime modulated to carry the data signal using the modulation signal. Further, the light source includes a pathway configured to direct the directional electromagnetic radiation and a wavelength converter optically coupled to the pathway to receive the directional electromagnetic radiation and to output a white-color spectrum. Furthermore, the light source includes a beam shaper configured to direct the white-color spectrum for illuminating a target of interest and transmitting the data signal.

A light source device includes a light source unit with at least one set of light sources, wherein each of the at least one set of light sources emits a light of a predetermined wavelength band; an optical waveguide unit that multiplexes light from the at least one set of light sources; and an incident unit, wherein on an incident surface of the incident unit, with an optical axis on the incident unit as a reference position, an installation state of each light source is adjusted such that the maximum separation distances are set equal to each other from the reference position to a maximum incident angle of an incident position of the respective light from the at least one set of light sources incident on the incident unit.

A microlens array according to an embodiment of the present disclosure includes lens layers with a first side thereof having aspheric-surface shapes. The microlens array is configured such that an optical communication module may be miniaturized and integrated as a working distance (WD) is minimized to 1.30±0.05 mm, and collimating performance is excellent as a curvature radius (R1) of each lens layer is 1.1 to 1.5.

A light source optical system includes: a first optical system configured to guide a first light beam having a first wavelength emitted from a light source to a wavelength conversion element; the wavelength conversion element configured to convert the first light beam into a second light beam having a second wavelength different from the first wavelength, and emit the second light beam; and a second optical system through which the second light beam emitted from the light conversion element passes. The second optical system includes a light guide element configured to guide a portion of the second light beam from one end surface of the light guide element to the other end surface of the light guide element to separate the portion of the second light beam from the second light beam.

A light emitting device includes a base, a lid portion, a plurality of semiconductor laser elements, and a collimate lens. The lid portion is fixed to the base to define a hermetically sealed space by the lid portion and the base. The semiconductor laser elements are provided in the hermetically sealed space. The collimate lens has a non-lens portion fixed to the lid portion, and a plurality of lens portions connected and aligned along one direction and surrounded by the non-lens portion when viewed from a light extracting surface side of the collimate lens.

A light source device includes a light source and a projection optical system. The light source includes a plurality of light emitters. The projection optical system is configured to emit light emitted from the light source. A light emission amount per unit area in a light emission region of the light source corresponding to an irradiated region where a magnification of the projection optical system is relatively large, is larger than a light emission amount per unit area in a light emission region corresponding to an irradiated region where a magnification of the projection optical system is relatively small.