The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, the method comprising a 3D printing stage comprising layer-wise depositing 3D printable material (201) to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D item (1) comprises a plurality of layers (322) of 3D printed material (202), wherein the plurality of layers (322) comprises a stack (1300), wherein the stack (1300) comprises a first layer (1322) and a second layer (2322), wherein the method comprises:—3D printing the first layer (1322) and subsequently the second layer (2322) while providing a plurality of modulations (340) in a z-direction in at least one of the first and second layers (1322, 2322), thereby defining a plurality of openings (354) between the first and second layers (1322, 2322).

The invention relates to a luminaire element (10, 11) for an inspection tunnel (100), in particular for checking shiny surfaces, in particular painted surfaces, comprising at least two, preferably strip-like, arrangements (12) of light sources (13) in a luminaire housing (14) having at least two edge regions (15) lying opposite one another along a longitudinal extension (L) of the luminaire housing (14), wherein the strip-like arrangements (12) of the light sources (13) are formed along the longitudinal extension (L) at the edge regions (16), wherein a light exit surface (20) of the luminaire housing (14) has a higher radiation intensity along the edge regions (16) than in a central region (30). The invention further relates to a luminaire strip (50) having an arrangement of luminaire elements (10, 11) of this kind and to an inspection tunnel having an arrangement of a plurality of luminaire strips (50).

The invention relates to a luminaire element (10, 11) for an inspection tunnel (100), in particular for checking shiny surfaces, in particular painted surfaces, comprising at least two, preferably strip-like, arrangements (12) of light sources (13) in a luminaire housing (14) having at least two edge regions (15) lying opposite one another along a longitudinal extension (L) of the luminaire housing (14), wherein the strip-like arrangements (12) of the light sources (13) are formed along the longitudinal extension (L) at the edge regions (16), wherein a light exit surface (20) of the luminaire housing (14) has a higher radiation intensity along the edge regions (16) than in a central region (30). The invention further relates to a luminaire strip (50) having an arrangement of luminaire elements (10, 11) of this kind and to an inspection tunnel having an arrangement of a plurality of luminaire strips (50).

An illumination apparatus includes a light source, an optical member, and an integrator. The optical member is rotatable around a rotation axis AR. A planar shape of the optical member is annular around the rotation axis AR. A first surface of the optical member is provided with a recessed and protruding portion. Multiple recessed and protruding structure units are consecutively formed on the optical member . Adjacent recessed and protruding structure units are in a mirror symmetry relation, and the recessed and protruding portions of the adjacent recessed and protruding structure units are smoothly connected together. Recessed portions and protruding portions of the recessed and protruding portion of each recessed and protruding structure unit are smoothly connected together. An area occupied by the recessed and protruding portion of each recessed and protruding structure unit is larger in size than incident light from the light surface.

A circular motion detection system having a light source includes a housing having a top portion, side walls and a bottom portion including a light diffusing lens. Light control components can be located along the side walls of the housing. Sensing components can be disposed along the side walls of the housing and can be configured to collectively detect motion within an approximately 360 degree planar field of view of the light emitting device. The motion sensing components can be configured to trigger the light source, located along the side walls of the housing, to emit light through the light diffusing lens in a planar field of view from the individual motion sensing component. The system can include an audio device providing an audio signal triggered by one or more motion sensing components.

A circular motion detection system having a light source includes a housing having a top portion, side walls and a bottom portion including a light diffusing lens. Light control components can be located along the side walls of the housing. Sensing components can be disposed along the side walls of the housing and can be configured to collectively detect motion within an approximately 360 degree planar field of view of the light emitting device. The motion sensing components can be configured to trigger the light source, located along the side walls of the housing, to emit light through the light diffusing lens in a planar field of view from the individual motion sensing component. The system can include an audio device providing an audio signal triggered by one or more motion sensing components.

A light fixture includes a lamp having a light source, a petal mechanism having a plurality of petals moveable between an open position and a closed position, and a petal actuator coupled to the petal mechanism to controllably move the petals of the petal mechanism between the open position and the closed position.

A lamp module group can include a housing defining a first housing end and a second housing end, the housing defining a first protruding column at the first housing end, the housing defining a cavity with a housing opening to the cavity defined at the second housing end and a column opening to the cavity defined by the first protruding column; an LED lamp board positioned within the cavity, the LED lamp board configured to emit light through the housing opening; a power supply driving module positioned within the cavity between the LED lamp board and the first protruding column, the power supply driving module connected in electrical communication with the LED lamp board; and a concentric terminal extending through the column opening, the concentric terminal connected in electrical communication with the power supply driving module.

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.