Lighting unit with a container body (10) made by means of extrusion, a series of first light sources (21; 221) and a series of second light sources (22; 222), arranged on at least one printed circuit board (20; 220a, 220b); a power supply (50,51) supplying power to the light sources (21, 22; 221, 222); diffusion optics (30) for diffusion of the light emitted by the first light sources (21; 221); and concentrating and/or directing optics (40) for concentrating and/or directing the light emitted by the second sources (22; 222).

A light source system and a light-emitting device are provided. The light source system includes an array of light-emitting diodes, the light-emitting diodes including light-emitting diode chips; a collimating lens group located on a light path of light emitted by the array of the light-emitting diodes, the collimating lens group being configured to collimate light beams emitted by the light-emitting diode chips; and a fly-eye lens arranged on a light path of light outputted from the collimating lens group. The fly-eye lens includes micro lens units corresponding to the light-emitting diode chips, and for at least one light-emitting diode chip of the light-emitting diode chips, an image formed by each of at least one light-emitting diode chip on surfaces of the micro lens units is completely within a surface of one of the micro lens units. A ratio of side lobes is reduced, thereby improving the energy utilization rate.

An injection molded component has a functional portion and a quality control portion. The quality control portion comprises a set of protrusions which are adapted to distort visibly in response to injection molding shrinkage, thereby to enable visual quality control inspection.

The present disclosure provides a fixing member for an optical element and an LED lamp with the fixing member thereof. The LED lamp includes a base, an LED plate and the optical element. The LED plate includes a plurality of LED beads, the base including a receiving room that includes a mounting surface formed on the bottom thereof, the LED plate arranged on the mounting surface, and the optical element arranged on a light-emitting side of the LED plate; the LED lamp further includes a pressing member with one end being hinged to the base and the other end being buckled with the base, the pressing member presses against the optical element to keep the optical element on the base, which has advantages that the optical element can be assembled, disassembled and maintained without using tools.

The backlight module includes multiple backlight units. Each backlight unit includes a first light emitting unit and multiple second light emitting units. The first light emitting unit has a first beam angle, and each second light emitting unit has a second beam angle which is narrower than the first beam angle. In a first mode, a light intensity of the first light emitting unit is equal to a first intensity, and a light intensity of the second light emitting units is equal to a second intensity. In a second mode, the light intensity of the first light emitting unit is equal to a third intensity, and the light intensity of the second light emitting units is equal to a fourth intensity. The first intensity is greater than the third intensity, and the second intensity is less than the fourth intensity.

The illumination module for emitting light (5) can operate in at least two different modes, wherein in each of the modes, the emitted light (5) has a different light distribution. The module has a mode selector (10) for selecting the mode in which the module operates, and it has an optical arrangement. The arrangement includes—a microlens array (LL1) with a multitude of transmissive or reflective microlenses (2) which are regularly arranged at a lens pitch P (P1);—an illuminating unit for illuminating the microlens array (LL1). The illuminating unit includes a first array of light sources (S1) operable to emit light of a first wavelength L1 each and having an aperture each. The apertures are located in a common emission plane which is located at a distance D (D1) from the microlens array (LL1). In a first one of the modes, for the lens pitch P, the distance D and the wavelength L1 applies P2=2.Math.L1.Math.D/N wherein N is an integer with N≥1.

A lighting module and a lighting device. The lighting module includes: a base, including a bottom plate and a base sidewall disposed on the bottom plate, the base sidewall and the bottom plate enclosing an accommodation groove; a light transmitting component, being partially disposed in the accommodation groove so as to form an accommodating space between the light transmitting component and the bottom plate, the light transmitting component including a light transmitting component sidewall which is oppositely arranged with the base sidewall at an interval; and a sealing component, being partially disposed between the light transmitting component sidewall and the base sidewall, and being in close contact with the light transmitting component sidewall and the base sidewalls respectively so as to seal the accommodating space.

A luminaire (1) comprising identical curved LED Modules (13, 13′, 13″) in an inner and an outer arrangement of LED Modules. Said LED Module comprising a curved PCB (14) having a main surface and a number of LEDs (15) arranged thereon. The LED Module has width W and is curved with its main surface extending in a plane Q. The LED Module extends over a circle with a radius Rc, wherein 200 mm<=Rc<=450 mm, and extends over an angle a over said circle, wherein 36°<=a<=72°. The number of LEDs is in between 3 and 150. Each LED (15) has a respective doughnut like shaped lens to render the LED during operation to emit a rotational symmetric batwing beam with a maximum intensity Imax of the batwing beam at an angle 13 with 60°<=13<=80° with said optical axis, and a FWHM in the range of 15-30°.

Disclosed are a light emitting assembly and a light emitting device. The light emitting device includes a first light emitting element, a first light transmission portion and a driving portion, The first light emitting element emits a first light beam. The driving portion can drive the first light emitting element or the first light transmission portion, such that a position relationship between the first light emitting element and the first light transmission portion is switchable between a first state and a second state. In the first state, the first light beam passing through the first light transmission portion presents a first pattern; in the second state, the first light beam passing through the first light transmission portion presents a second pattern which is different from the first pattern.

A light emitting module including a substrate, a light emitting device disposed on the substrate, and a lens disposed above the light emitting device to disperse light, the lens including a light incident portion through which light emitted from the light emitting device enters the lens and a light exit portion through which the light exits the lens, in which each of the light incident portion and the light exit portion has a major axis and a minor axis in plan view, the major axis of the light incident portion is disposed at a right angle with respect to the major axis of the light exit portion, the lens includes a plurality of legs formed on a lower surface of the lens to support the lens, and at least one of the legs includes a leg protrusion protruding downwards from a lower surface thereof.