A headphone includes a housing, a light emitting device and a printed circuit board. The light emitting device is mounted in the housing. The light emitting device includes a luminous unit, and a light guiding unit disposed close to the luminous unit. The light guiding unit has a base portion, an incident surface formed at an inner surface of an inner end of the base portion, an emitting surface formed at an outer surface of an outer end of the base portion, a first refracting surface, a first reflecting surface, a second reflecting surface, a second refracting surface, a light transmitting column, a positioning wall, an upper buckling arm and a lower buckling arm. The printed circuit board is mounted in the housing.

A projection device for ambient decoration may include a first light-emitting assembly comprising at least one first incoherent light source, a reflective medium, and a first driving device. The first light-emitting assembly may further include a mount recessed internally to define a placing groove adapted to the reflective medium, a first through-hole and a placing recess on one side of the first through-hole arranged at a bottom of the placing groove, a fixing column arranged in a center of the placing recess, and a second through-hole arranged at a bottom of the reflective medium. The first driving device may be coupled to the reflective medium, the fixing column may pass through the second through-hole into the reflective medium, and the at least one first incoherent light source may be connected to the fixing column.

An invisible, light-transmissive display system with a light resistant material is provided. Substantially invisible, tapered, light-transmissive holes are penetrated in a light transmissive pattern through at least a portion of the light resistant material using a laser beam having a focal width less than the smallest diameter of the tapered holes.

The utility model discloses a pattern projecting apparatus for automatically identifying and playing an audio. The projecting apparatus includes a first housing, a light-emitting assembly, a film assembly, an audio assembly, and an imaging assembly. The audio assembly includes a control board, an electronic label corresponding to a film sheet, an identifying module for identifying the electronic label and arranged on the control board, a storage medium pre-stored with an audio corresponding to a galactic starry sky pattern, and a speaker electrically connected to the control board. The electronic label is arranged on the film assembly. When the film assembly is mounted in a first mounting hole, the identifying module identifies the electronic label on the film sheet, positions the audio corresponding to the electronic label in the storage medium and plays the audio via the speaker, so that the galactic starry sky pattern projected by the projecting apparatus is played in combination with the audio. A user can hear an audio corresponding to a pattern of the film sheet when changing different film sheets. Therefore, the user's experience is effectively improved, and the practicability of the projecting apparatus is enhanced.

The present disclosure provides an intelligent music lamp string. The intelligent music lamp string includes a human body sensing module, a control module, a music control module and a lamp string. The human body sensing module is configured to sense a human body and output a sensing signal when the human body is sensed. The control module is configured to receive the sensing signal and output an enable signal and a control signal according to the sensing signal. The music control module is configured to receive the enable signal and play a predetermined music according to the enable signal. The lamp string is configured to receive the control signal and start to work according to the control signal, a duty cycle of the control signal in each cycle corresponding to beats of each section of the predetermined music.

An integrated ceiling device includes a housing retaining an electronic assembly, a heat sink having a central opening, a light source coupled onto the heat sink, the housing is coupled with and disposed at least partly above the heat sink, and a central vertical axis of the housing aligns or is in proximity with the central opening of the heat sink.

A voice-controlled electronic device that includes a device housing having a longitudinal axis bisecting opposing top and bottom surfaces and a side surface extending between the top and bottom surfaces. The device can further include one or more microphones disposed within the device housing and distributed radially around the longitudinal axis; a processor configured to execute computer instructions stored in a computer-readable memory for interacting with a user and processing voice commands received by the one or more microphones and first transducer and second transducers configured to generate sound waves within different frequency ranges.

Illumination devices as include a frame intended to be worn by a user and one or more light sources (e.g., LEDs) positioned by the frame so as to be near a user's zygomatic bones and oriented to project light in a direction of the user's view when the illumination device is worn on the wearer's head. The frame may be shaped to be worn over the user's ears and behind the user's head, and may be made of one or more of plastic, metal and/or a metal alloy, carbon fiber, wood, cellulose acetate, natural horn and/or bone, leather, and an epoxy resin. An optional strap may be retractably attached to connect portions of the frame over the wearer's head. The LEDs may be included in respective panels swivelly mounted to booms of the frame and the panels may further include imaging devices, such as a camera, and/or a projector.

In accordance with various embodiments, lighting systems features one or more inter-connectable light panels each having multiple light-emitting elements thereon. One or more of the light panels may feature one or more connectors, and associated conductors, for the transmission of power, communication signals, and/or control signals. One or more of the light panels may include sound-absorbing material therebelow and may define one or more apertures and/or cut-out regions that reveal the sound-absorbing material.

The present disclosure relates generally to lighting elements, for example, suitable for use illuminating a ceiling. The present disclosure relates more particularly to an illuminated acoustic ceiling element including an acoustic substrate having an upper face and a lower face, an air permeable layer disposed under the lower face of the acoustic substrate and spaced from the acoustic substrate, and a light source supported by the acoustic substrate and configured to emit light through the air permeable layer.