The present disclosure is directed to a sun-sky-imitating illumination device (100) for generating natural light similar to that from the sun and the sky, comprising a direct-light generator (10) that comprises a first emitting surface (11) from which a direct light (13) is emitted and a collimated light source (20) configured to generate from a primary light a collimated light (23) which exits an output surface (22) positioned upstream from the first emitting surface (11) with respect to a direct light direction (15), wherein the direct light (13) has a luminance profile (Ldirect(x, y, θ, φ)) which has a first peak in the angular distribution around the direct-light direction (15) and the collimated light (23) exiting the output surface (22) has a luminance profile (Lcoll(x, y, θ, φ)) which has a second peak (14) in the angular distribution around the direct-light direction (15), the second peak being a narrow peak, and a diffused-light generator (50) that is at least partially light-transparent and is positioned downstream of the direct-light generator (10) and comprises a second emitting surface (51) and is configured to cause diffused light (53) at the second emitting surface (51), wherein the sun-sky-imitating illumination device is configured such that the direct-light generator (10) and the diffused-light generator (50) co-operate to form outer light (53,54) at the second emitting surface (51) which comprises a first light component (54) which propagates along directions contained within the narrow peak (14) and a second light component (53) which propagates along directions spaced apart from the narrow peak (14), wherein the first light component (54) has a CCT which is lower than a CCT of the second light component (53), wherein the direct-light generator (10) comprises an optical unit (30) positioned downstream of the output surface (22) of the collimated light source (20) and upstream from the first emitting surface (11) with respect to the direct light direction (15), wherein the optical unit (30) is configured to interact with the collimated light (23) exiting the output surface (22) to generate the direct light (13) emitted from the first emitting surface (11) so that the first peak of the luminance profile (Ldirect(x, y, θ, φ)) of the direct light (13) is larger than the second peak of the luminance profile (Lcoll(x, y, θ, φ)) of the collimated light (

A digitally controlled LED illuminator sheet that produces far-field illumination patterns or light field distributions that increase light utilization and application efficiency. A dynamic directional LEDs (or other kinds of solid-state light sources) sheet is positioned under each lenslet of a microlens array. Individual LED beam pointing direction depends on off-axis position relative to optical axis of lenslet. Individual beams from independent LEDs form illumination pixels at the illumination plane or within a volume space and can be modulated in intensity. Illumination pixels partially overlap in far-field illumination plane and illumination volume. Over a large illumination space many illumination pixels will partially superimposed on neighboring illumination pixels, with the overlap being in increments smaller than the size of a pixel. The LEDs can be digitally turned on or off and/or pulse width or amplitude modulated to produce far-field illumination patterns or light field distributions with spectral efficiency and efficacious intensity.

Provided herein is an indoor emotional lighting apparatus for implementing three-dimensional (3D) pattern for a vehicle, the indoor emotional lighting apparatus including a film portion on which a plurality of fine lenses each having a 3D pattern are arranged, a light source configured to emit light in a plurality of directions, and a light source guide portion configured to guide an optical path of the light source to allow the light emitted from the light source to be directed toward the film portion.

A lamp for a vehicle includes a light emitting unit for generating light, and an optical unit for forming a predetermined light irradiation pattern by outputting the light incident from the light emitting unit through a plurality of optical modules each including an incident lens and an output lens. The light emitting unit includes a light source unit, and a plurality of reflectors arranged in a left-right direction to allow the light generated from the light source unit to be reflected to the optical unit, and the optical unit includes a plurality of areas for outputting the light incident from the plurality of reflectors.

A digitally controlled LED illuminator sheet that produces far-field illumination patterns or light field distributions that increase light utilization and application efficiency. A dynamic directional LEDs (or other kinds of solid-state light sources) sheet is positioned under each lenslet of a microlens array. Individual LED beam pointing direction depends on off-axis position relative to optical axis of lenslet. Individual beams from independent LEDs form illumination pixels at the illumination plane or within a volume space and can be modulated in intensity. Illumination pixels partially overlap in far-field illumination plane and illumination volume. Data from sensors can be collected and the LEDs can be digitally turned on or off and/or pulse width or amplitude modulated based on sensor data to produce far-field illumination patterns or light field distributions with spectral efficiency and efficacious intensity.

The invention provides an automotive lighting device with a circuit support, an optics support, a holder support and a microlenses support. The optics support includes optical elements, each one being arranged in front of one of the solid-state light sources of the printed circuit board. The optics support further includes positioning protrusions configured to fit the positioning housings of the circuit support. The holder support includes a plurality of opaque walls, a first coupler and a second coupler. Each opaque wall is located between two optical elements. The microlenses support includes a plurality of groups of microlenses, each group having a plurality of microlenses arranged to receive the light projected by one optical elements. The first coupler is configured to couple the holder support to the circuit support. The second coupler is intended to retain the microlenses support.

A luminaire and LED light engine are provided. The luminaire includes the LED light engine and an optical device. The LED light engine includes an LED array and a partial diffuser. The partial diffuser diffuses light that is emitted by LEDs of a selected first subset of LEDs in the LED array and leaves undiffused light that is emitted by LEDs of a second subset of LEDs in the LED array. At least some LEDs are selected for inclusion in the first subset as emitting light that produces poorly blended colors in a light beam emitted by the LED array. The optical device is configured to receive a light beam emitted from the LED light engine and emit a modified light beam.

Optical lenses and associated luminaire are described herein. In one aspect, a lens comprises a light receiving side comprising grooves for receiving light emitting diodes, the grooves defined by a central refractive region and walls comprising total internal reflection faces; and a light extraction side opposite the light receiving side, the light extraction side comprising refractive extraction surfaces, total internal reflection extraction surfaces, or combinations thereof. In some embodiments, luminaire comprises an array of light emitting diodes; and the lens positioned over the array of light emitting diodes.

A hybrid vehicle lamp includes a functional surface and a functional marking integrated within the functional surface. A housing has a plurality of mounting locations configured to respectively align a plurality of light sources configured to illuminate the functional marking or the functional surface, or both, in a lit mode. A controller is configured to individually control each of the plurality of light sources for providing different illumination patterns of the functional marking and the functional surface such that such that automotive functional lighting and non-automotive functional lighting is provided.

Illumination devices with improved color mixing optics are disclosed herein for mixing the colors produced by a multi-colored LED emitter module to produce uniform color throughout the entire beam angle of the output light beam, along with smoother edges and improved center beam intensity. Embodiments disclosed herein include a unique arrangement of multi-color LEDs within an emitter module, a unique exit lens with different patterns of lenslets on opposing sides of the lens, and other associated optical features that thoroughly mix the different color components, and as such, provide uniform color across the output beam exiting the illumination device. Additional embodiments disclosed herein include a unique arrangement of photodetectors within the primary optics structure of the LED emitter module that ensure the optical feedback system properly measures the light produced by all similarly colored emission LEDs.