A panel light apparatus is designed to be installed to a ceiling. The panel light apparatus has a bracket firstly fixed to the ceiling. The bracket has a first lateral side and a second lateral side. The panel light apparatus has a detachable panel module to be attached to the bracket. The detachable panel module has a panel, a surrounding wall, a back cover, a first connector and a second connector. When the detachable panel module is attached to the bracket, the first connector and the second connector respectively have insertion portions kept in holes of the first lateral side and the second lateral side of the bracket.

A lighting fixture varies a beam angle of light emitted by a light source and a beam angle of light to the exterior to provide excellent visual effect by indirect lighting, high in serviceability and safety, and applicable to a wide range of purposes. The lighting fixture comprises a lighting fixture body of substantially L-shaped cross-section, a light source constituting a light radiation unit, a first reflector, a second reflector, and an opening constituting an illumination port. The light source is installed at an innermost center region of the vertical lightguide section to face into the vertical lightguide section. The first reflector is installed obliquely near one corner of the vertical lightguide section and the lateral lightguide section. The second reflector is obliquely installed near an endmost corner of the lateral lightguide section to face the first reflector.

The present invention relates to an indirect lighting apparatus using an LED, comprising: a case unit provided along the perimeter of the upper part of a wall surface, and having a light emitting opening on a side opposite to the wall surface; a substrate mounted with an LED and provided at the innermost side of the inner bottom surface of the case unit; a light distributing unit for distributing light to the ceiling through the light emitting opening by reflecting the light emitted from the LED; and a cover unit for covering the light emitting opening of the case unit. The present invention uses a simple structure so that the apparatus is fixedly provided on the wall surface, and can be used as main lighting or mood lighting by providing the distributed light capable of selectively illuminating the entire ceiling.

A flexible inside corner trim piece is formed with concave depressions at hinge portions where wings attach to the body. The trim piece can be formed such that wings and a top cap lay flat in plane perpendicular to body or wings and top cap curve at an angle. Hinge portions can be narrow or wide and symmetrical or asymmetrical. The trim piece can be dyed, paintable, or present another decorative surface. The trim piece can include embedded lighting.

First and second ribs are attached to a wall mounting bracket, each rib extending from the wall mounting bracket and then turning upwardly to form respective end tips. A front piece is shaped to pivotally mount to the wall mounting bracket and then rotate into a position where it snaps on to the end tips of the ribs to form a cove. Molded corner piece and sectional joiner components are also provided.

A cove light fixture with a hidden integrated air return is provided. The cove lighting structure can include a return air structure comprising a vent configured to receive return air. The cove lighting structure can include a cove structure connected with a platform extended laterally from the return air structure. The cove lighting structure can include a light fixture comprising a light source configured to provide cove lighting. The light fixture can be positioned above the platform and between the cove structure and the return air structure.

The present invention discloses an optical device (100) and a lighting device for illuminating two intersecting surfaces (S1, S2). The optical device (100) comprises a first light guiding structure (120) for redirecting light from a light source (200) into a first direction and a second light guiding structure (130) for redirecting light from the light source (200) into a second direction different from the first direction, wherein the optical device (100) is arranged to prevent light from the light source (200) from being redirected in a direction between the first and second directions. By positioning the lighting device (100) at the intersection of two surfaces (S1, S2) such as can be found in a step, or at a corner of a wall, or at a corner inside a closet, or on the intersection area of ceilings, the two intersecting surfaces can be illuminated at the same time with comfortable light distribution, using a simple structure that can be easily installed.

A cove light fixture with a hidden integrated air return is provided. The cove lighting structure can include a return air structure comprising a vent configured to receive return air. The cove lighting structure can include a cove structure connected with a platform extended laterally from the return air structure. The cove lighting structure can include a light fixture comprising a light source configured to provide cove lighting. The light fixture can be positioned above the platform and between the cove structure and the return air structure.

A flexible inside corner trim piece is formed with concave depressions at hinge portions where wings attach to the body. The trim piece can be formed such that wings and a top cap lay flat in plane perpendicular to body or wings and top cap curve at an angle. Hinge portions can be narrow or wide and symmetrical or asymmetrical. The trim piece can be dyed, paintable, or present another decorative surface. The trim piece can include embedded lighting.

A lighting assembly provides cove lighting without requiring construction of a cove to support or conceal the assembly. A housing can be disposed at a gap in a ceiling or wall and supported by structural framing at the ceiling or wall. The front of the housing can be mudded and painted to blend in with the ceiling or wall at which it is disposed so that it conceals itself. An assembly can comprise a housing and an illumination component removably coupled thereto. Wiring for the illumination component can be accommodated at a wireway of the channel. A mounting trough at the housing enables mounting of the housing at the framing without penetration of the channel. A molding base can be attached to the housing at the trough, and crown molding attached to the base.