Various embodiments may relate to a lens for an illumination device. The lens includes a bottom wall, a top wall, and a circumferential wall. The circumferential wall connects the bottom wall and the top wall. A plurality of regions of the bottom wall respectively arch towards the top wall to define at least one first accommodation cavity having an inner wall as a first incident surface, and at least one second accommodation cavity having an inner wall as a second incident surface. The first and second incident surfaces are designed as different curved surfaces for receiving first incident light and second incident light, respectively. Various embodiments further relate to an illumination device including the lens.

An illumination device, which comprises a light source and a battery to power the light source, provides improved light output without the need for complicated and therefore expensive optical arrangements by including a nonimaging light guide which collimates and optionally diffuses light emitted by the light source. In a particular embodiment of the invention these improvements are implemented in a multipurpose solar light which includes a solar panel, wherein the battery stores energy generated by the solar panel. The illumination device may comprise a casing having a front casing portion and a rear casing portion, wherein the nonimaging light guide is integrally formed with the front casing portion. The nonimaging light guide may have a shape comprising two conical frusta. Furthermore, the nonimaging light guide may comprise a recess in which the light source is located, the recess being larger than the light source such that there is a gap which permits airflow and in turn removal of heat from the light source as well as improved optical coupling.

A structured light generator includes a light source configured to emit light, and a first meta optical device including a first metasurface including nanostructures having sub-wavelength dimensions that are less than a wavelength of the light emitted from the light source, the first metasurface being configured to form a distribution of light rays from the light emitted from the light source to thereby radiate structured light.

A vehicle lamp includes a light source system; a reflection system including a plurality of reflective faces to reflect light beams emitted from the light source system to travel forward; and an optical system including a plurality of lenses respectively corresponding to the plurality of reflective faces. The optical system is configured to transmit at least a portion of light reflected from each of the plurality of reflective faces through a corresponding lens among the plurality of lenses to form a predetermined light irradiation pattern.

A projection device includes a first light-emitting component including a first light-emitting member, a first light-transmitting member, a first driving member and a first lens. The first light-emitting member is used for generating a linear light band; the first light-transmitting member is defined with a first linear light-transmitting region; the first driving member is fixedly connected with the first light-emitting member or the first light-transmitting member, and used for allowing the first light-emitting member and the first light-transmitting member to generate a relative motion, and allowing the linear light band to intersect with the first linear light-transmitting region; and the first lens, the first light-emitting member, the first light-transmitting member and the first lens are sequentially arranged. The projection device of the present disclosure is capable of generating the dynamic meteor effect to improve the user experience.

A lighting device assembly includes a light source attached to a heat sink member, a first optic device and a mounting housing configured to be secured in or to a ceiling, wall or other object, and to hold the heat sink member. A second optic device including a second optic member is configured to receive light emitted in a first direction from the light emitting surface of the first optic device and to emit light in a second direction that is transverse to the first direction. A connection mechanism selectively connects the second optic device to the mounting housing, for selective disconnection from the mounting housing.

Display module and display device are provided. The display module includes: a display panel; a backlight module; a through hole; a first optical film, and a light-filling component. An orthographic projection of the first optical film on the display panel is located inside an orthographic projection of the through hole on the display panel. The first optical film is provided with a first microstructure on a side facing the light-filling component, and further includes a first hollowed portion penetrating through the first optical film along the direction perpendicular to the light-exiting surface of the display panel. Light emitted by the light-filling component at least partially enters the first hollowed portion through the first optical film, and is transmitted to the display panel. The first microstructure includes a plurality of annular substructures, and a center of each of the plurality of annular substructures is located in the first hollowed portion.

A lighting device comprises a light source defining a central axis and comprising at least two mutually independently operable lighting elements. The lighting device further comprises a rotatable deflective member rotatably mounted about said axis, and a fixed deflective member fixedly mounted on said axis and comprising at least two mutually differently deflective portions which each are associated with a respective lighting element. The lighting device of the invention enables various operation modes, like light beam rotation can rotate, jumping of the light beam from one location to another by a sequence of switching on and off one or more of the at least two lighting elements, or in that it can be dimmed or boosted, for example dimmable in steps by a sequence of one by one switching off the lighting elements.

An auxiliary stop lamp for vehicles, in particular a high mounted stop lamp for vehicles, having a light source for the radiation of a light beam and having a holographic element for the refraction and/ or reflection of the light beam, the holographic element having a holographic light distributor to generate a stop light function, wherein the holographic element is arranged inside and/or in the region of an edge of a housing of the auxiliary stop lamp, or embodied as an edge of the housing of the auxiliary stop lamp.

A light fixture includes a circuit board having a plurality of light-emitting elements, and a plurality of collimators positioned adjacent the circuit board. Each of the collimators includes a first end positioned adjacent one of the light-emitting elements, a second end, and an interior wall extending between the first end and the second end. The wall is curved to internally reflect the light output of the associated light-emitting element and focus the light through the second end and provide a light distribution. The light fixture further includes a beam controlling optic positioned adjacent the second end of the plurality of collimators to modify the light output from the plurality of collimators to provide a modified light distribution.