Abstract: Provided is a waterproof lamp including a lamp housing having a circumferential side wall and an opened housing opening, a lamp cover, connected to the lamp housing and covering the opening, a light source plate, arranged in the housing inner space, and a lens, mounted on the plate and electrically connected to the plate, a switching unit for switching correlated color temperature or power of the lamp, the switching unit includes a switch having switching gears and electrically connected to the plate, and an operation knob that includes a disk-shaped body and a cylindrical connecting portion extending from one side of the body, the body is located outside the housing, and a portion of the body abuts the side wall, and the connecting portion is connected to the switch through a through hole on the housing so gear switching of the switch can be driven by rotation of the body.

Abstract: Some embodiments of the disclosure relate to the technical field of lamps and disclose dual-resistor airtight and waterproof bulbs. In some examples, the stem structure incudes a waterproof rubber base and a vertical light source plate. The waterproof rubber base includes an upper insertion portion and a lower assembly portion which are formed integrally. The lower assembly portion is arranged at an opening of the lamp shade and fits the opening of the lamp shade to form a filling recess. The disclosure may improve the stem structure of existing LED lamps and enables a light strip to be inserted into the waterproof rubber base more easily to implement connection and electric conduction, such that the production process of the stem of lamps may be simplified, and the stem may be formed without repeated fixed-position welding, thus may effectively improve the forming efficiency of the lamps.

Abstract: An optical element or a lighting element assembly including an optical element, can include a first portion of transmittance defining high transmittance enabling greater that 80% of light transmission, and a second portion of transmittance defining a low transmittance enabling less than 40% of light transmission, wherein the second portion of transmittance encircles the first portion of transmittance.

Abstract: An emergency driver (100) of this disclosure for driving emergency lighting means comprises a battery (101) operably coupled to the emergency lighting means, a preferably resistive temperature sensor (104) configured to generate a temperature signal (Ts) corresponding to a temperature of the battery (101), at least a resistive heating element (102) configured to increase the temperature of the battery (101) by a heating operation, and a controller (106) configured to perform in a time multiplex manner, the reading of the temperature sensor (104) and the operation of the resistive heating element (102).

Abstract: A lens used for cooperating with a light source includes a lens body including a first surface and a second surface that are opposite to each other, an outer lens provided on the first surface, an inner lens provided on the second surface and corresponding to the outer lens. The outer lens and the inner lens are substantially strip-shaped, the inner lens protrudes towards the light source, the outer lens protrudes away from the light source, light emitted by the light source is firstly scattered by the inner lens, and then is converged by the outer lens and emitted to an external environment. An LED lamp is further provided.

Abstract: An optical assembly, a linear lamp, a linear lamp combination and a track linear lamp are provided, the optical assembly includes a light source module, a reflective cup, a lens component, and an anti-glare cup which are sequentially arranged in a height direction, in which an edge of the reflective cup is provided with a snap-fit slot, and an edge of the lens component is provided with a first hook in a protruding manner, the anti-glare cup is provided with a second hook in a protruding manner, the first hook and the second hook extend in a same direction so as to be inserted into a corresponding snap-fit slot, and the reflective cup, the lens component, and the anti-glare cup are connected in a snap-fit manner.

Abstract: An optical system may comprise an emitter assembly and an optical structure that are configured to be used with a lighting device for providing a narrow beam angle for the lighting device. The emitter assembly may comprise an array of emitters configured to emit light. The optical structure may comprise a body having a light-entry portion, a light-exit portion, and side wall extending between the light-entry portion and the light-exit portion. The side wall of the optical structure may define a total internal reflection (TIR) surface. The light-exit portion may comprise a front surface and an octagon-shaped well formed into the front surface. The octagon-shaped well may have a center surface surrounded by a beveled portion configured to refract light that is reflected off of the TIR surface towards a central axis of the optical system, such that light rays that are transmitted from the light-exit portion are substantially collimated.

Abstract: Systems, devices, and methods are described herein for adjusting the spot size of light provided from a surgical light by translating a focus panel relative to a plurality of light emitters. The focus panel can be mounted to the housing of the surgical light such that the focus panel can translate relative to the housing in an axial direction toward and away from the plurality of light emitters. The focus panel can engage with one or more tracks that are movably mounted relative to the housing and controlled via at least one actuator. The actuator(s) can be configured to translate the focus panel towards or away from the plurality of light emitters to adjust the spot size of light provided by the surgical light via the engagement between the focus panel and the one or more tracks.

Abstract: A planar illumination device according to an embodiment includes a substrate, a first optical element, a second optical element, a third optical element, a pair of fourth and fifth optical elements, and a sixth optical element. A plurality of light sources are two-dimensionally arranged on the substrate. The first optical element is arranged at an emission side of the plurality of light sources to condense light emitted from the plurality of light sources. The second optical element is arranged at an emission side of the first optical element to tilt light distribution of the light condensed by the first optical element in a first axial direction within an emission surface. The third optical element is arranged at an emission side of the second optical element to spread the light tilted by the second optical element in the first axial direction.

Abstract: Some parameters are defined that a focal length of the condensing optical system is f, a width orthogonal to an optical axis and having a maximum width of the collimating optical system is b, an axis coinciding with a line segment constituting the width b is an axis B, a width of a projection image on an axis optically equivalent to the axis B is a, the projection image being on a light emitting surface on a back focus surface of the condensing optical system, and a separation distance between an incident surface of the fly eye lens and a back focus of the condensing optical system is L, the light source device satisfies a predetermined formula.

Abstract: A recessed lighting luminaire component that includes a reflector integrated with a lens is described herein. The reflector may have a square or round top opening, the walls of the reflector widening as the walls extend downward to a flange, the walls continuing below the flange in a square or round box. A square or round lens is integrated with the square or round box of the reflector, the square or round lens includes a lens box with an open top and a bottom of the lens box being a semi-transparent convex material, where walls of the lens box and the walls of the reflector are joined, perhaps with an ultrasonic weld, the flange being of circular shape extending outward from the reflector, the flange including a plurality of tabs, the flange configured to mount inside of a recessed lighting luminaire housing.

Abstract: Disclosed are a color-changing lampshade and a lamp. The color-changing lampshade includes an upper cover, a waterproof ring, a substrate and a color-changing coating. The upper cover encloses a light outlet. The substrate is a transparent component, and the substrate is provided with a first side and a second side opposite to the first side. The upper cover extends along the periphery of the substrate; the upper cover leans against the first side, and the upper cover presses the substrate against one side of the waterproof ring. The color-changing coating is provided corresponding to the position of the light outlet, and the color-changing coating is coated on the second side.

Abstract: A lens with adjustable light angle includes a lens outer portion, a spiral lens portion, and a lens middle cover portion. The spiral lens portion includes a spiral lens strip matched with a spiral lamp bead strip on the light source board. The spiral lens strip includes a light entering surface having a receiving groove corresponding to the spiral lamp bead strip and a light exiting surface. The light exiting surface is divided into a first light exiting surface and a second light exiting surface respectively extending from a middle of an arc-shaped surface to two sides of the arc-shaped surface. The lens middle cover portion is rotated to enable the receiving groove to move relative to the plurality of lamp beads, which allows light to be alternatively emitted from at least one of the first light exiting surface or the second light exiting surface.

Abstract: Illumination system (1) for a vehicle, including at least one lighting device (2), including at least two, individually controllable, light sources (3a, 3b), and a lens element (4), arranged downstream of the two light sources, and a vehicle body component (5). The lens element is configured to emit a first light bundle and a second light bundle towards the vehicle body component, respectively. The vehicle body component includes an opaque section (6) and a plurality of transparent elements (7), embedded within the opaque section. The plurality of transparent elements is defined by at least one parent-group (PG) of transparent elements (7, 7?), said PG is divided into at least two sub-groups (SG). The lens element is configured to redirect the first light bundle towards the first sub-group (SG1) of transparent elements and to redirect the second light bundle towards the second sub-group (SG2) of transparent elements.

Abstract: A light source system, comprising: a light source mechanism comprising a light source substrate and a plurality of light emitting diode modules provided on the light source substrate, wherein the light emitting diode module includes at least two light emitting diode chips; a collimating lens group comprising a lens support and collimating lens units provided on the lens support, wherein the collimating lens unit is configured for collecting exiting light of the light emitting diode module; and an adjusting mechanism comprising a mounting support and an adjusting block, wherein the lens support is assembled on the mounting support, and the adjusting block is configured for adjusting a displacement of the collimating lens group on the mounting support.

Abstract: A light system includes a housing and a lighting assembly. The housing includes a first cap, a second cap, and a lens arranged between the first cap and the second cap to form a periphery of the housing. The lighting assembly is arranged proximate to the first cap and includes a plurality of lighting elements configured to emit light toward the second cap. The lens includes a waveguide having a reflecting surface that is non-planar and that is configured to receive the light emitted by the plurality of lighting elements and direct the light toward the periphery of the housing.

Abstract: A lighting apparatus comprises a lamp head, a central shaft, and a stand. The lamp head and the stand are each connected to the central shaft. While the lamp head is maintained in a fixed relative position to the central shaft, the stand can not only slide axially relative to the central shaft to adjust an illumination height of the lamp head, but can also rotate circumferentially relative to the central shaft to adjust a circumferential lighting orientation of the lamp head. The axial sliding and circumferential rotation of the stand relative to the central shaft correspondingly adjusts the illumination height and circumferential lighting orientation of the lamp head, operation is convenient and simple.

Abstract: A lighting system can include a light source comprising one or more LED chips. A cover can be optically coupled with the light source. A diffuser can be integrally formed with the cover. The diffuser can define a first region and a second region. The first region has a first asymmetrical optical element and the second region has a first symmetrical optical element.

Abstract: A light-emitting substrate includes a substrate, and a plurality of light-emitting devices, a plurality of driver chips and a plurality of supporting structures that are all disposed on a side of the substrate. Each driver chip is electrically connected to at least one light-emitting device, and each driver chip is covered by a supporting structure of the plurality of supporting structures.

Abstract: The present disclosure relates to a refrigerator, and the refrigerator includes a cabinet having a storage space; and a door including a door body configured to open and close the storage space and a panel assembly detachably mounted to the door body, in which the panel assembly includes: a panel which is configured to define an outer appearance of a front surface of the door and through which light is transmitted; a lighting device provided behind the panel and shining the panel; and a back cover defining a rear surface of the panel assembly and shielding the lighting device from the rear side; and the lighting device is disposed to face the panel and radiates light toward the panel.