Lights with features for underwater use that provide tailored beam-width and/or other tailored light patterns are disclosed. One embodiment includes a housing having a front end with a port and a back end, a port window having a plurality of lens features positioned at the front end of the housing within or behind the port, and a circuit element, including a plurality of LED lighting elements, positioned behind the window.

A pane assembly (2) for a window (8) arranged in the outer wall (4) of an aircraft (6) in a window plane (10) contains a transparent cover pane (12) in a cover plane (14), a switching film (16) in a scattering plane (18), which is switchable between a transparent state (ZT) and a diffuse state (ZD), a luminous film (20) in a light plane (22) having LEDs (24), wherein a spacing (A) between each two LEDs (24) in relation to one another is at least five times their transverse extension (Q), wherein the pane assembly (2) is arranged in front of the window (8) in an installed state (M), so that scattering plane (18), light plane (22), and window plane (10) extend in parallel to one another and the luminous film (20) is arranged between the window (8) and the switching film (16), and window (8), switching film (16), and luminous film (20) are located aligned one behind another on the line of sight (26). A window assembly (40) contains the window (8) and the pane assembly (2) arranged in front of it in the installed state (M).

A light-emitting unit, having a substrate; a first light-emitting body formed on the substrate, and having a first longer side and a first shorter side; a second light-emitting body formed on the substrate, and having a second longer side and a second shorter side which is parallel to the first longer side; a third light-emitting body formed on the substrate, having a third longer side and a third shorter side which is parallel to the first longer side, and electrically connected to the first light-emitting body and the second light-emitting body; a first electrode covering the first light-emitting body and the second light-emitting body, and electrically connecting to the first light-emitting body; a second electrode separated from the first electrode, and covering the second light-emitting body without covering the first light-emitting body; and a transparent element enclosing the first light-emitting body, the second light-emitting body, and the third light-emitting body.

The present disclosure provides a lighting device including a first lighting unit including a plurality of first light sources arranged on a first flat or curved surface, and configured to implement lighting of a first illuminance and of a first color, a second lighting unit including a plurality of second light sources arranged on a second flat or curved surface at least partially inclined with respect to the first lighting unit, the second lighting unit surrounding at least a part of the first lighting unit, and configured to implement lighting of a second illuminance at least partially different from the first illuminance and of a second color, at least one opening formed to penetrate through the first lighting unit, and at least one third lighting unit including a plurality of third light sources arranged on a third flat or curved surface, and configured to implement lighting of a third illuminance higher than the first illuminance and of a third color through the opening. The second lighting unit may be configured to implement the lighting of the second illuminance and the second color in conjunction with the third lighting unit.

An LED luminaire, which comprises an LED array of LED elements and an optical element. The optical element comprises one or more partially reflective or partially transmissive elements, which are positioned to lie perpendicular to a plane of the LED array. In this way, the partially reflective elements create virtual sources or virtual LED elements, by reflecting part of the light emitted by an LED element, whilst allowing the original or real LED element to still be visible by partially transmitting the light.

A lighting device may include a substrate, light sources, a resin layer disposed on the substrate and the light sources, and a phosphor layer disposed on the resin layer. A surface of the resin layer has a flat upper surface and a plurality of side surfaces on an outer side of the flat upper surface. At least one of the plurality of side surfaces of the resin layer has a curved surface. The phosphor layer has a first region disposed on the flat upper surface of the resin layer and a second region disposed on the plurality of side surfaces of the resin layer. Light generated from the plurality of light sources is emitted through the flat upper surface and the curved surface of the resin layer.

Lighting apparatus for high pressure underwater use are disclosed. In one embodiment the lighting apparatus comprises a housing for withstanding ambient exterior pressure at a depth of approximately 500 feet or more, a transparent pressure bearing window positioned at a forward end of the housing, and a multilayered stack for bearing substantially all of the loading applied to the transparent pressure bearing window at a depth of approximately 500 feet or more disposed in the housing behind the transparent pressure bearing window is disclosed.

A light-emitting device includes: a plurality of light sources configured to be disposed on a substrate; a light diffusion member configured to commonly cover the plurality of light sources; and a plurality of wavelength conversion members configured to be disposed between the light sources and the light diffusion member in a thickness direction and disposed in regions corresponding to the plurality of light sources in a plane, respectively, and configured to convert light with a first wavelength from the light sources into light with a second wavelength.

An example electric lighting system includes a lighting device that includes a housing including a lighting element and a power device holding portion. The power device holding portion includes a cavity. The cavity includes a first and a second electrical contact disposed within the cavity. The power device includes a third and a fourth electrical contact. The power device includes a coupling component. The coupling component is removably couplable to the power device holding portion such that an electrical communication is established when the power device is inserted into the cavity at any rotational position relative to the lighting device about a shared central axis. The power device is operable to power the lighting device through the electrical communication. The electrical communication is established between the first electrical contact and the third electrical contact and between the second electrical contact and the fourth electrical contact.

Example embodiments relate to luminaire heads with interconnecting interfaces. One example luminaire head including an interconnected interface for an electronic device includes a support layer and a cover layer arranged over the support layer. The support layer includes a plurality of electrical tracks arranged on a surface of the support layer and connectable to a power supply of the luminaire head. The support layer also includes a first electrical connector. The first electrical connector is connected to at least one of the plurality of electrical tracks and is suited for connecting to the electronic device. Further, the support layer includes a second electrical connector. The second electrical connector is directly connected to the first electrical connector via the at least one of the plurality of electrical tracks. An upper surface of the cover layer includes a first opening and at least one retaining means.