A light fixture may include a casing and a support assembly configured to support and move the casing. The light fixture may include a light source assembly housed inside the casing and configured to generate visible light radiation of different colours. The light fixture may further include a control device configured to control the light source assembly based on the position or the movement of the casing or based on a parameter correlated to the position or the movement of the casing.

A light emitting module includes: a substrate; a first light source mounted on the substrate, the first light source comprising a first light emitting element configured to emit first light, a light reflecting member surrounding lateral faces of the first light emitting element, and a first wavelength conversion member configured to convert a wavelength of a portion of the first light and to emit second light, such that the first light source is configured to output light that includes the first light and the second light, the first wavelength conversion member covering the first light emitting element and extending out from the lateral faces of the first light emitting element when viewed from above; and a first lens on which the light output from the first light source is incident.

A multicolored reflective lighting has multiple multicolored films mounted on multiple frame bodies of a lighting frame, and at least one light strip is mounted on the lighting frame. The at least one light strip is configured to be lighted up to project light to the multiple multicolored films. Reflecting the projected light, the multiple multicolored films are able to generate various color changes and light-reflective effects by multiple light-transmitting layers with different refractive indexes. Colors are changeable with view angles. By mutual intersecting light-reflective effects generated by part of light projecting through one of the multiple multicolored films to another, and spaces between the multiple frame bodies, the multicolored reflective lighting generates various three-dimensional multicolored lighting effects. The multicolored reflective lighting is especially suitable for festival decoration, environmental decoration or outdoor display.

A light emitting module includes: a first light source comprising a first light emitting element configured to emit first light, and a first wavelength conversion member configured to convert a wavelength of a portion of the first light and to emit second light, such that the first light source is configured to output light that includes the first light and the second light; a first lens on which the light output from the first light source is incident; a drive unit configured to change a distance between the first lens and the first light source so as to change an amount of outgoing second light from the first lens; a second light source configured to output light having a chromaticity that is different from that of the light output from the first light source; and a second lens on which the light output from the second light source is incident.

A method for controlling a subtractive color mixing system in a light fixture, comprising a light source, the subtractive color mixing system comprising a plurality of subtractive color filters, and an additional filter. The method is for emitting light having a target color upon having traversed the additional filter, such as upon having traversed the subtractive color mixing system and the additional filter and optionally being emitted from the light fixture. The method comprising receiving target information indicative of, such as defining, the target color, calculating a target control setpoint for each subtractive color filter within the plurality of subtractive color filters based on the target information, and calibration data, which for a plurality of sets of calibration control setpoints is indicative of an emitted color, controlling each of the subtractive color filters according to each calculated target control setpoint for each of the subtractive color filters.

An ophthalmic illumination system includes a light source to emit a light beam and a filter comprising a clear region to transmit visible light in the visible spectrum and a first filtered region to transmit visible light in a first spectral range. The filter is arranged within the optical path of the beam. The system includes a plurality of chromaticity sensors to receive a portion of the light beam transmitted by the filter and output a signal indicating chromaticity of the received beam. The system also includes a processor to receive the signal indicating chromaticity, compare the indicated chromaticity to a target chromaticity stored in memory and, based on the comparison, adjust the chromaticity of the light beam transmitted by the filter by generating a signal to move the filter from a first position in which the light beam is incident upon only the clear region to a second position in which the light beam is partially incident on both the clear region and the first filtered region.

A light emitting module includes: a first light source comprising a first light emitting element configured to emit first light, and a first wavelength conversion member configured to convert a wavelength of a portion of the first light and to emit second light, such that the first light source is configured to output light that includes the first light and the second light; a first lens on which the light output from the first light source is incident; a drive unit configured to change a distance between the first lens and the first light source so as to change an amount of outgoing second light from the first lens; a second light source configured to output light having a chromaticity that is different from that of the light output from the first light source; and a second lens on which the light output from the second light source is incident.

The present invention is applicable in the technical field of laser lights, and provides a laser light for projecting laser which comprises a color adjustable laser light source and a dimmer, the dimmer comprises a rotator having a convex surface and a micro lens array arranged on the convex surface, and the micro lens array is formed by a plurality of closely arranged micro lens; each of the micro lens reflects the laser irradiating on a surface thereof so as to form a light spot on a light receiving surface, the rotator can rotate axially, such that the micro lens array can reflect an incident laser dynamically and scatteringly so as to form a light spot pattern having the same color with that of the incident laser on the light receiving surface.

A projector lamp, comprising a hollow lamp housing having an opening formed at the first end thereof; a power supply adaptor, mounted within the lamp housing and in communication with an external power supply via a second end of the lamp housing; a lighting module, mounted inside the lamp housing and comprising a circuit board and a plurality of light emitting diode units, the circuit board being electrically connected with the power supply adaptor, and the plurality of light emitting diode units being electrically mounted on the circuit board to emit light when the projector lamp is energized; a lens, mounted at the opening of the lamp housing such that light emitted by the plurality of light emitting diode units projects out therethrough; and an adjusting assembly, having an adjusting ring and a controller, the adjusting ring being mounted on the outer periphery of the lamp housing around a longitudinal axis of the lamp housing extending from the first end to the second end thereof.

A luminaire includes a white light LED light source emitting a light beam that that is filtered by first and second color filters. An optical device modifies the filtered light beam. A control system receives a commanded value for the optical device and responds by causing the optical device to move based on the commanded value; determining a Duv change in the light beam caused by the optical device; determining positions for the color filters based on the Duv change, a current correlated color temperature (CCT) isotherm value, and a current Duv value; and moving the color filters to their determined positions. The control system may alternatively receive a command with a Duv value and respond by determining color filters positions based on the received Duv value and a current CCT isotherm value; and moving the color filters to their determined positions.