A light-transmitting assembly of a display device, a signal indicator, and the display device are provided in the embodiments of the present disclosure. The light-transmitting assembly of the display device includes: a light-transmitting adjustment member including a plurality of first patterns, a light transmittance of each first pattern is less than a light transmittance of a region of the light-transmitting adjustment member other than the first pattern, and each light-shielding area ratio of the first patterns is a ratio of a sum of areas of all the first patterns in any one region of the light-transmitting adjustment member to an area of the any one region.

A lighting device is provided. The lighting device includes: a lighting unit in which a plurality of light sources are mounted; a lighting cover installed to be spaced apart from the lighting unit; and a reflective sheet arranged on a light source mounting surface of the lighting unit and reflecting reflected light reflected from the lighting cover back toward the lighting cover, wherein wavelength conversion layer for converting a wavelength of the reflected light reflected from the lighting cover is laminated on the reflective sheet.

A lighting device is provided. The lighting device includes: a lighting unit in which a plurality of light sources are mounted; a lighting cover installed to be spaced apart from the lighting unit; and a reflective sheet arranged on a light source mounting surface of the lighting unit and reflecting reflected light reflected from the lighting cover back toward the lighting cover, wherein wavelength conversion layer for converting a wavelength of the reflected light reflected from the lighting cover is laminated on the reflective sheet.

Light emitting diode (LED) light tubes having rotatable end cap assemblies are described. The LED light tubes include a hollow tube and a circuit board with LED chips thereon. The end cap assemblies are provided on either end of the tube. Each end cap assembly includes a socket cap, a plug having a plug body and at least one connector, and an end cap body, one end of which engages one of the ends of the hollow tube. A cam locking mount that is positioned within the plug body and on the opposite side has projections to be positioned in the bore of the end cap body. A rotation cam is seated in the cam locking mount and provides for controlled rotation of the LED tube relative to the end caps. Methods of installing the LED light tubes in new installations and retrofit installations and for use in sign assemblies are also described.

An illumination device may include, but is not limited to: a shell portion; and a light projection device disposed at least partially within the shell portion, the light projection device including: at least one light source operably couplable to a power source; and at least one diffraction grating configured to distribute a light beam generated by the at least one light source onto an interior surface of the shell portion.

An LED filament lighting device comprising, at least one LED filament, each including a plurality of LEDs mounted on an elongated substrate, at least one light scattering element, each including a light scattering shell surrounding a transparent volume, each light scattering element being arranged to encompass at least one LED of at least one LED filament, and configured to scatter light emitted from the encompassed LED(s), thereby forming a first LED set including at least one LED encompassed by said at least one scattering element, and a second LED set including a plurality of LEDs not encompassed by said at least one scattering element, wherein a light distribution from said first LED set combines with a light distribution from said second LED set to provide an improved total light distribution from said LED filament lighting device.

Electronic control device (10) comprising: —an electronic circuit (11) having an operative face (11a) on which a plurality of LEDs (12) are mounted; —a frame (13) defining a plurality of first channels (14) which face the LEDs so as to guide their light radiation; —a composite screen (15) which covers the first channels (14) so as to be crossed by a light radiation coming from the LEDs (12) and guided by the first channels (14) towards the composite screen (15). The composite screen (15) comprises: —a diffuser layer (16) configured to homogenize a light radiation that crosses it; —an operative layer (17) having electronic tracks comprising touch-sensitive pads (18) and connection contacts (19). The electronic control device (10) further comprises at least one connector (20) which connects electrically the connection contacts (19) to the electronic circuit (11) in order to transmit to the latter electrical signals following touching, by a user, of at least one of said sensitive pads (18) on the composite screen (15).

An edge device is provided for use in a therapeutic lighting, sensing, and software system may aid users in various ways. The edge device may include a lamp surrounded by a housing. The housing may include a capacitive touch plate for receiving touch commands from a user. The housing may include one or more internal reflectors and one or more optical diffusers configured to limit light emissions from the edge device, such that only light having a wavelength of greater than 620 nm is emitted. The housing may include a capacitive touchpad configured to dampen sound from a user activation of the touchpad.

An edge device is provided for use in a therapeutic lighting, sensing, and software system may aid users in various ways. The edge device may include a lamp surrounded by a housing. The housing may include a capacitive touch plate for receiving touch commands from a user. The housing may include one or more internal reflectors and one or more optical diffusers configured to limit light emissions from the edge device, such that only light having a wavelength of greater than 620 nm is emitted. The housing may include a capacitive touchpad configured to dampen sound from a user activation of the touchpad.

A combination axial fan and LED lighting system configured to fit into the footprint of a standard ceiling tile. The system includes a housing container and an axial fan. The fan has a fan cavity including air diversion mechanism to direct air from the fan cavity toward the lighting and fan components. The invention includes an airflow surface to direct air existing the fan cavity along an LED light fixture.