An aircraft beacon device of a wind power installation, to be arranged on a gondola of the wind power installation, comprising at least three omnidirectional emission sections arranged concentrically in a ring around a common mid-axis, each omnidirectional emission section comprising a lens section arranged concentrically in a ring around the mid-axis, with a beam plane defined perpendicularly to the mid-axis, and at least one lighting ring having lighting means arranged concentrically in a ring around the mid-axis in order to emit light through the lens section, wherein each lighting ring is configured in order to emit light with a central emission direction which makes an emission angle with the beam plane, and wherein the emission direction depends on an axial position of the lighting ring with respect to the lens section, wherein at least one omnidirectional emission section comprises at least two lighting rings offset axially with respect to one another for emission with different emission angles.

A marking device includes a light-emitting unit configured to emit light, a housing configured to accommodate the light-emitting unit, and a support configured to support the housing. The housing can include a transmitting portion configured to transmit the light from the light-emitting unit through a circumferential portion of the housing, and a roof covering the light-emitting unit accommodated in the housing. The housing can include a side wall formed between every two adjacent windows of the plurality of windows.

The present disclosure describes light systems in which the intensity of base color LEDs configured to emit light within a target color region is increased using additional white LEDs and the emitted light is filtered so that a dominant portion of light passing through the filter at a particular viewing angle is within the target color region. The present disclosure also describes methods for forming a printed circuit board with an integral heat sink arrangement by depositing additional solder on solder pads that are not used to connect electronic components so that the additional solder acts as a heat sink.

A lens component disperses light from a source having a distribution characteristic in which luminosity becomes smaller according to distance from the optical axis. The component includes an incidence portion at a source position struck by light from the source and guiding portions branching from the incidence portion and extending radially from the source position. Each guiding portion includes a basal end portion joined to the incidence portion, emission end portion emitting light away from the source, and reflection surface guiding light that struck the basal end portion while performing internal reflection. The incidence portion and guiding portions form a light distribution structure arranged so that a ratio of luminosity in a direction making a predetermined angle with the optical axis with respect to luminosity in the axial direction in light emitted from the structure is larger than a corresponding ratio in the source's distribution characteristic.

A light guiding structure includes a resilient base and a plurality of light guiding columns. A plurality of through holes is separately formed on the resilient base. The plurality of light guiding columns resiliently engages with the plurality of through holes. Each of a plurality of light emitting components is disposed on an end of each of the plurality of the light guiding columns. The light guiding structure utilizes the plurality of light guiding columns for guiding the light transmitted from the plurality of light emitting components and further utilizes the resilient base for allowing the light transmitted from one of the plurality of light emitting components to pass through the corresponding light guiding column only. Therefore, the light transmitted from the plurality of light emitting components can be guided to a correct position, which effectively reduces human misjudgment.

An indicator module includes first electrodes disposed on a first support surface, each of the first electrodes having a flexible portion having a sloped section forming an oblique angle with the first support surface, a second electrodes disposed on a second support surface spaced apart from the first support surface along a longitudinal direction, a set of conductors elongated substantially in the longitudinal direction, each of the first electrodes being electrically connected to the a respective one of the second electrodes via a respective one of the conductors, and an indicator circuit, such as a set of LEDs, electrically connected to one or more of the conductors and adapted to generate a human perceptible signal when the indicator circuit receives electrical power from the one or more of the conductors.

A machine for extracorporeal blood treatment including a housing for accommodating operational components of the machine for extracorporeal blood treatment and a light-emitting unit having no diffusion disk for displaying an operating and/or therapy condition of the machine according to the principle of ambient light. The light-emitting unit is arranged in a predetermined sequence and/or with predetermined shaping on at least one portion of the housing. The light-emitting unit is a flexible light conductor having at least one end-face light coupling surface at a first end and at least one end-face light output surface at a second end or alternatively a self-luminous flat and/or flexible OLED unit.

An emergency, camping, flood, home, work and law enforcement light has a large LED floodlight mounted by a two-dimensional hinge to a large battery/vehicular battery case, so when the case is on the ground, the light may be directed at any angle in both bearing and azimuth. The case further may have a light strip composed of numerous small LEDs capable of various modes of blinking operation in various colors, so as to mimic, in the dark, the appearance of emergency vehicles, for example with blinking orange lights, blinking red and blue lights and so on. The vehicle battery may provide power to a 12V/30V outlet of the case, or may be charged by the same socket.

When viewed in parallel to a central axis (C1), three LED substrates (4) form an equilateral triangle (T) that surrounds the central axis (C1) and are disposed equidistantly with respect to the central axis (C1). When viewed in parallel to the central axis (C1), LEDs (8) are disposed on an outer surface (4a) of each LED substrate (4) at least one each at each of a pair of placement positions (Q1) at both sides sandwiching a reference normal (BN) being a normal to the outer surface (4a) and passing through the central axis (C1). The LEDs (8) each have an optical axis (8a) orthogonal to the outer surface (4a). When viewed in parallel to the central axis (C1), radiated lights from the LEDs (8) at the pair of placement positions (Q1) of each LED substrate (4) are, by an optical system (K), converted to and emitted as emitted parallel lights (RPL) that are respectively parallel to a pair of light emission reference lines (RB) passing through the central axis (C1) at both sides sandwiching the reference normal (BN) and respectively contain the corresponding light emission reference lines (RB).

A light system is provided. The light system includes a top housing, a bottom housing opposite the top housing, a lens arranged between the top housing and the bottom housing, and a plurality of lighting elements arranged between the top housing and the lens. The lens includes a plurality of side surfaces that extend between the top housing and the bottom housing to form a perimeter of the lens, and an angled reflective surface. The plurality of lighting elements is configured to direct light toward the bottom housing to reflect off of the angled reflective surface and out of at least one of the plurality of side surfaces.