A system and method of assembling a light engine includes determining a desired light output profile for the light engine, selecting a reflector based on the desired light output profile, and selecting one of a first light board and a second light board. The first light board includes a different number of light emitting diodes than the second light board. Each of the first light board and the second light board are capable of providing the desired output light profile when they are coupled with the selected reflector. The method also includes positioning the one of the first light board and the second light board within the housing, adjacent the reflector.

A light distribution element and a lamp are provided. The lamp includes a plurality of subsections combined with each other, each of the plurality of subsections is a part of a circumference, and the plurality of subsections can be located on at least one virtual circumference by movement. The light distribution element of the present application includes a plurality of subsections combined with each other, which is favorable for providing the lamp with a special-shaped configuration, thus facilitating the use of the lamp.

An illuminated keyswitch structure includes a base plate, a keycap, and a light-emitting die package. The keycap is movably disposed above the base plate in a vertical direction. The light-emitting die package is disposed under the keycap and includes a plurality of light-emitting dies. The plurality of light-emitting dies are monochromatic light-emitting dies. Therein, among the plurality of light-emitting dies, three light-emitting dies that are adjacently arranged in an arrangement direction perpendicular to the vertical direction emit light of three different colors. The arrangement direction is respectively parallel to along side of each of the three adjacent light-emitting dies.

An illumination device includes two illumination sections. The first illumination section includes a plurality of illumination elements that are each configured to emit light in a light spectrum, wherein the light spectrum is variable. The second illumination section includes one or several illumination elements that are each configured to emit light in a fixed light spectrum, wherein the fixed light spectrum is white.

A light distribution element and a lamp are provided. The lamp includes a plurality of subsections combined with each other, each of the plurality of subsections is a part of a circumference, and the plurality of subsections can be located on at least one virtual circumference by movement. The light distribution element of the present application includes a plurality of subsections combined with each other, which is favorable for providing the lamp with a special-shaped configuration, thus facilitating the use of the lamp.

A lighting device that provides visible illumination with enhanced emission in the range 460-520 nm with a M/P ratio of XI, where XI is at least 0.7, a correlated color temperature of 4000-14000 K, and an average color rendering index of at least 70.

An illumination device includes two illumination sections. The first illumination section includes a plurality of illumination elements that are each configured to emit light in a light spectrum, wherein the light spectrum is variable. The second illumination section includes one or several illumination elements that are each configured to emit light in a fixed light spectrum, wherein the fixed light spectrum is white.

A bendable fill light lamp comprises a plurality of segments of a lamp body assembly connected in a series or a sequence, wherein the lamp body assembly comprises a body for connecting the plurality of segments. Any two adjacent segments of the plurality of the segments are rotatably connected. Each of the plurality of the segments comprises a light-emitting surface as a fill light source. The body comprises a connecting member passing among the plurality of the segments. The connecting member comprises a bendable elastic body. In this way, during the use of the fill light, the bending of the intermediary segments may drive the sequential adjustment of the illumination angles of the light emitting parts on the intermediary segments. In one aspect, the light angle of the fill light may be adjusted and avoid phenomenon of multiple lights on the object to be photographed, which improves the shooting effect.

A system and method of assembling a light engine includes determining a desired light output profile for the light engine, selecting a reflector based on the desired light output profile, and selecting one of a first light board and a second light board. The first light board includes a different number of light emitting diodes than the second light board. Each of the first light board and the second light board are capable of providing the desired output light profile when they are coupled with the selected reflector. The method also includes positioning the one of the first light board and the second light board within the housing, adjacent the reflector.

A method for producing an LED film with a cut-off edge is disclosed. The LED film has a film with LED pixels arranged thereon. The LED pixels, which each have at least one LED, are controlled via the data line of a daisy chain, which is arranged in a meandering shape on the film. The method provides for a loop of the meandering shape to be severed and for the thereby produced free ends of the data line to be connected or for a loop of the meandering shape to be bridged and for the edge of the LED film to be subsequently trimmed so that the loop is cut off outside the connection remaining on the LED film. Electrode paths of supply voltage lines are preferably arranged in a matrix shape on the LED film.