The downlight apparatus includes a surface rim, a rotation bracket, a bowl housing and a light source. The surface rim has an rim edge and a lateral wall. The rotation bracket includes a bracket body and two arms. Each arm has an arm bottom and a arm top. The rotation bracket is attached to the lateral wall. The bowl housing has a bowl edge. The bowl edge defines a light opening. The arm tops of the two arms are attached to the bowl edge. The bowl housing is rotatable with a tilt angle with respect to the arm tops. The light source is mounted inside the bowl housing for emitting a light from the light opening.

A lighting effect adjustment system includes a light source module, and a focusing module, a magnification module and a light output lens that are arranged in sequence along a beam projection direction of the light source module. The focusing module, the magnification module and the light output lens are mounted on a stage light holder, The focusing module and the magnification module are independently slidable in a light path direction. An effect module is further slidably arranged between the focusing module and the light output lens. The effect module includes one or more effect sheets configured to be switched into and out from a light path, and motions of the effect module and the magnification module are independent without interference with each other.

Configurations for a photonics assembly design and methods for mitigating coherent noise thereof are disclosed. The photonics assembly may include a set of light sources, an optical subsystem that may include a set of optical elements, and a diffusing element. The light emitted by the set of light sources may be different wavelengths and the light may be de-cohered by a phase shifter before being received by the set of optical elements. The diffusing element may be moveable and may be capable of repeating the same positions or set of positions for each beam of light emitted by the set of light sources. By combining the coherent noise mitigation techniques of the moveable diffusing element and the de-cohered light, the photonics system may provide an illumination profile with a specific spatial profile and angular profile on the sample that allows reliable measurement of the sample and coherent noise mitigation.

Configurations for a photonics assembly design and methods for mitigating coherent noise thereof are disclosed. The photonics assembly may include a set of light sources, an optical subsystem that may include a set of optical elements, and a diffusing element. The light emitted by the set of light sources may be different wavelengths and the light may be de-cohered by a phase shifter before being received by the set of optical elements. The diffusing element may be moveable and may be capable of repeating the same positions or set of positions for each beam of light emitted by the set of light sources. By combining the coherent noise mitigation techniques of the moveable diffusing element and the de-cohered light, the photonics system may provide an illumination profile with a specific spatial profile and angular profile on the sample that allows reliable measurement of the sample and coherent noise mitigation.

A combination comprises at least one lens and at least one prism. The at least one lens and the at least one prism are in an optical path of a corresponding at least one light source. The combination is configured to direct light radiating from the at least one light source toward a projector lens.

Control instructions are transmitted to receivers by modulating light sources to generate light beams that are modulated with digital data streams for inducing control instructions in the light beams. Each light beam is applied to a pixel shaper element of a pixel shaper assembly to produce a light pixel, each light pixel carrying the control instructions of the light beam, each light pixel having a perimeter defined by the pixel shaper element. The pixel shaper assembly combines the light pixels into an image without significant overlap or voids between the light pixels. The light pixels are directed toward a projector lens for transmission toward the receivers. In a receiver, an optical receiver detects a light pixel. A controller decodes the control instructions received in the detected light pixel and uses the control instructions to control a function of the receiver.

A device comprises an enclosure having a rear opening adapted to receive a light beam from a light source, a front opening adapted to emit a modified light beam, and internal walls extending between the rear opening and the front opening. The light beam is modified according to a perimeter of the front opening. A light shaping assembly comprises a two-dimensional array formed of a plurality of such devices, each one of the plurality of devices being adapted to receive a light beam from a corresponding light source.

A light shaping assembly comprises a printed circuit board (PCB) and a two-dimensional (2D) array formed of a plurality of rows, each row comprising a plurality of light sources mounted on the PCB, each light source comprising a pair of supporting pins for mounting the light source on the PCB. The supporting pins of each light source are bent at an angle that is increasing as a function of a distance between each light source and a selected point on the PCB so that light beams emitted by the light sources are collectively directed toward a common target.

A light shaping assembly comprises a printed circuit board (PCB) and a two-dimensional (2D) array formed of a plurality of rows, each row comprising a plurality of light sources mounted on the PCB, each light source comprising a pair of supporting pins for mounting the light source on the PCB. The supporting pins of each light source are bent at an angle that is increasing as a function of a distance between each light source and a selected point on the PCB so that light beams emitted by the light sources are collectively directed toward a common target.

Disclosed is a light effect projection device, including a control unit, a condensing diffraction assembly and a first lamp source, wherein the first lamp source and the control unit are both fixed in a housing, the first lamp source is electrically connected to the control unit, the condensing diffraction assembly is located above the first lamp source, the condensing diffraction assembly at least includes a plastic condensing lens, the condensing lens is shaped like a spherical crown or a semi-sphere, an incident plane of the condensing lens is concave, and the incident plane or an emergent plane of the condensing lens is of a polyhedral structure; further including a driving unit which is fixedly arranged in the housing and electrically connected to the control unit, wherein one part of the condensing diffraction assembly is fixed at a power output end of the driving unit for driving connection.