A modular and decentralized architecture for building illuminated means of egress from a device level to a building system level, wherein low and high mounted illuminated means of egress inside a building can use the same luminaire form factor.

Provided is an aerosol generation device including: a case into which a cigarette is insertable; a heater arranged in the case and configured to heat the cigarette inserted into the case; a mainstream smoke passage connecting an internal end portion of the cigarette to the outside; and a vaporizer configured to heat a liquid composition to generate aerosol and deliver the aerosol to the mainstream smoke passage, wherein at least a portion of the mainstream smoke passage extends in a direction crossing a longitudinal direction of the cigarette.

Provided is an aerosol generation device including: a case into which a cigarette is insertable; a heater arranged in the case and configured to heat the cigarette inserted into the case; a mainstream smoke passage connecting an internal end portion of the cigarette to the outside; and a vaporizer configured to heat a liquid composition to generate aerosol and deliver the aerosol to the mainstream smoke passage, wherein at least a portion of the mainstream smoke passage extends in a direction crossing a longitudinal direction of the cigarette.

An underwater directional light is provided. The directional light includes a lamp assembly, a tube assembly, and a printed circuit board assembly. The lamp assembly includes a housing and a lamp having a plurality of lighting elements. The tube assembly is coupled to the lamp and has a hollow interior. The printed circuit board assembly is mechanically coupled to the tube assembly and electrically coupled to the lamp.

The present invention relates to a light emitting device comprising one or more LED light sources and one or more diffusely transmissive covers. The one or more diffusely transmissive covers extend over the one or more LED light sources to form one or more combinations of an LED light source and a diffusely transmissive cover. For each combination of an LED light source and a diffusely transmissive cover (i) the diffusely transmissive cover is dome-shaped with a vertical cross-section having a closed convex shape and a horizontal cross-section having a polygonal shape, (ii) the diffusely transmissive cover has a width (w) projected in a horizontal plane parallel to a bottom of the diffusely transmissive cover, (iii) the LED light source has a distance (d) to any neighboring LED light source. The width (w) and the distance (d) are perpendicular to each other, and the ratio of the width (w) and the distance (d) is constant.

The present invention relates to a light emitting device comprising one or more LED light sources and one or more diffusely transmissive covers. The one or more diffusely transmissive covers extend over the one or more LED light sources to form one or more combinations of an LED light source and a diffusely transmissive cover. For each combination of an LED light source and a diffusely transmissive cover (i) the diffusely transmissive cover is dome-shaped with a vertical cross-section having a closed convex shape and a horizontal cross-section having a polygonal shape, (ii) the diffusely transmissive cover has a width (w) projected in a horizontal plane parallel to a bottom of the diffusely transmissive cover, (iii) the LED light source has a distance (d) to any neighboring LED light source. The width (w) and the distance (d) are perpendicular to each other, and the ratio of the width (w) and the distance (d) is constant.

A luminaire may include a light engine comprising a plurality of LEDs arranged in one or more annular rows. The luminaire may include an optic. The optic may include an annular optic body having a light entrance side facing the plurality of LEDs and a light exit side opposite the light entrance side. A plurality of annular grooves may be defined within the light exit side, the plurality of annular grooves being coaxial with the optic body. A plurality of arc-shaped grooves may be defined within the light exit side. Each of the plurality of arc-shaped grooves may be convex relative to a center of the optic. Each of the plurality of arc-shaped grooves may intersect at least one of the plurality of annular grooves. The optic may be configured to produce a Unified Glare Rating of less than 28.

Disclosed are methods for forming a double-sided optical sheet, and a vehicle lamp assembly having the double-sided optical sheet integrated therein. A first optical pattern is imprinted on a first side of a material, and a second optical pattern is imprinted on a second side of the material, opposite the first side. The first and second optical patterns are thereby formed on opposing sides of the same sheet. When oriented adjacent a light source, the double-sided optical sheet homogenizes light emitted from the light source. For a light source having a plurality of lighting elements, the double-sided optical sheet is configured to blend light emitted from the plurality of lighting elements to form one homogenous beam of light output resulting from a single light-modifying member.

An optical projection device for projecting a linear image is disclosed. Light emitted by an array of light emitting diodes arranged along an array axis is focused in at least a direction perpendicular to the array axis and diffused in a direction parallel to the array axis, thereby generating a linear image in which light from adjacent light emitting diodes is spatially overlapped. In some embodiments, the focusing and diffusion of the light is performed by a Fresnel lens and a lenticular lens, respectively. The optical projection device may be employed to virtually mark a surface, such as a floor in an industrial setting. High power light emitting diodes may be employed to generate a linear image having an illuminance of at least 4000 lux that is focused to a distance between 7.5 and 20 feet.

A light box includes a light passing cover printed with an image. The image is being logically divided into two-dimension blocks. The light box includes multiple light tubes. Each light tube includes a tubular housing, an elongated LED bar, and a controller. The elongated LED bar is being enclosed by the tubular housing. The elongated LED bar has multiple LED modules divided into multiple LED sections. The multiple light tubes is being disposed behind the image of the light passing cover. The multiple LED sections of multiple light tubes is being corresponding to the two-dimension blocks of the image respectively. The controller controls the multiple LED sections separately according to a stored script. The stored script indicate a timing sequence for controlling the multiple LED sections for illuminating the two-dimension blocks of the image according to the stored script.