A light emitting device (LED-Filament) comprises: a light-transmissive substrate; at least one blue LED chip mounted on the light-transmissive substrate, for instance mounted on a face thereof; and a photoluminescence material at least partially covering the at least one blue LED chip. The photoluminescence material comprises narrow-band red phosphor particles that generates light with a peak emission wavelength in a range of 600 nm to 640 nm and a full width at half maximum emission intensity of 50 nm to 60 nm. The light emitting device is characterized by CRI Ra greater than or equal to about 90. The narrow-band red phosphor particles can comprise at least one Group IIA/IIB selenide sulfide-based phosphor material such as for example CaSe.sub.1−xS.sub.x:Eu (CSS phosphor). The LED-filament can be incorporated in a lamp, with a yellow to green-emitting phosphor that generates light with a peak emission wavelength in a range of 520 nm to 570 nm, to provide light with a color temperature in a range of 1500 K to 4000 K or 1500 K to 6500 K and a General Color Rendering Index (CRI Ra) greater than or equal to about 90 and a CRI R9 greater than or equal to about 50.

To provide a lamp unit in which rattling of a light-emitting element is prevented, a lamp unit (4) includes: a holder member (9) attached to an attachment object (3), a base board (6) provided with a light-emitting element (5) coupled on a main surface thereof; a retaining member (8) that engages the holder member to sandwich the base board between the retaining member and the holder member such that the base board is retained at a prescribed position on the holder member; and a cover member (9) that is at least partially light-transmissive and is attached to the holder member such that the cover member cooperates with the holder member to define a housing chamber (90) for housing the base board and the retaining member.

A light emitting device includes a base, light sources, wall portions, and a half mirror. The base has a light reflecting surface and has a first side on which the light reflecting surface is provided. The light sources are mounted on the first side of the base. Each of the wall portions surrounds each of the plurality of light sources. The half mirror is to reflect a part of incident light and to transmit another part of the incident light. The half mirror is disposed opposite to the base such that the light sources are provided between the half mirror and the base.

An LED filament and lamp, and a manufacturing process of an LED filament, the LED filament includes a PCB substrate and multiple LED chips, connecting circuits are provided on the PCB substrate, a positive pin and a negative pin are provided at two ends of the connecting circuit, respectively, and each LED chip is electrically connected to the connecting circuit; and a fluorescent glue layer is provided outside the PCB substrate and the LED chips, and the positive pin and the negative pin are exposed from the fluorescent glue layer. The LED lamp includes the LED filament. The manufacturing process of an LED filament enables manufacturing an LED filament. For the LED filament and lamp, and the manufacturing process of an LED filament, a PCB substrate is used as a base material, connecting circuits are fabricated on the PCB substrate, the connecting circuits are directly used for connecting LED chips.

Constructing and controlling light assemblies in a vehicle interior. A light assembly is constructed by forming a PCB layer to have a shape that is based on a shape of a corresponding vehicle component. A set of light sources are mounted onto the PCB layer and the PCB layer is attached to the corresponding vehicle component. The light assembly is connected to a light controller that supplies power and control signals to the light sources. A lighting effects engine receives an input from a user or a vehicle sub-system, determines a lighting effect corresponding to the received input, retrieves a set of lighting routines associated with the lighting effect, and transmits the set of lighting routines to a set of light controllers. The set of light controllers collectively generate the lighting effect by applying/executing the received lighting routines on the set of light assemblies.

Disclosed is a water purifier having a light-emitting assembly, comprising a light-emitting assembly (1), an outer housing (2), a middle frame (3) and a top cover (4). The light-emitting assembly (1) comprises a light ring support (11) and a light-emitting component mounted on the light ring support (11). The light-emitting assembly (1) is assembled on the middle frame (3). The middle frame (3), the light-emitting assembly (1) and the outer housing (2) are successively arranged from inside to outside. The top cover (4) is provided above the middle frame (3) and/or the outer housing (2), and the light ring support (11) is adjacent to or abuts the position of the top cover (4). The light-emitting assembly (1) of the water purifier emits light when lit, forming a uniform light-emission ring of emitted light at the top part of the light ring support (11), and can also be used for lighting.

An LED filament light including a bulb, a support bar, at least two electrode wires and at least two LED filament strips. Each LED filament strip including a base, an LED chip is set on the base and an electrode is fixed at both ends of the base. One end of the electrode is electrically connected with an LED chip on the base, the other end of the electrode is electrically connected with an electrode of another LED filament or electrically connected to one end of the electrode wires so that the support bar is fixed to the bulb, and the other end is connected with at least one. As the support bar is set to replace the existing LED filament light core and metal wire, and creatively the LED filament electrodes directly is connected to each other.

To provide a lamp unit in which rattling of a light-emitting element is prevented, a lamp unit (4) includes: a holder member (9) configured to be attached to an attachment object (3), a base board (6) provided with a light-emitting element (5) couple on a main surface thereof; a retaining member (8) that engages the holder member to sandwich the base board between the retaining member and the holder member such that the base board is retained at a prescribed position on the holder member; and a cover member (9) that is at least partially light-transmissive and is attached to the holder member such that the cover member cooperates with the holder member to define a housing chamber (90) for housing the base board and the retaining member.

A lighting system includes a substrate of non-absorbent foam material having a first surface, an undercut groove formed in the first surface, and a light source disposed in the undercut groove. The lighting system can be used with various structures including, but not limited to spas, swimming pools, decks, marine products, and sheds.

A dual-color light string comprising a first insulated electrical wire cord, a second insulated electrical wire, two light-emitting diode devices (LED devices) and transparent glue. The first insulated electrical wire is partially exposed to form a first soldering section. The second insulated electrical wire is partially exposed to form a second soldering section. The two LED devices are respectively electrically connected to the first soldering section and the second soldering section, and the directions of bias of the two LED devices from the first soldering section to the second soldering section are opposite to each other; The transparent glue covers the two LED devices, the first soldering section and the soldering section, extends to partially cover a first insulating layer of the first insulated electrical wire and a second insulating layer of the second insulated electrical wire.