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.

A lighting device that includes a light source, a first optical element configured to convert light emitted from the light source into substantially parallel light, and a plurality of second optical elements arranged in a first direction. Each of the plurality of second optical elements has a light incident surface. Each of the plurality of second optical elements guides at least a portion of the substantially parallel light incident on the light incident surface in a second direction intersecting the first direction and guides another portion in the first direction.

A lighting device that includes a light source, a first optical element configured to convert light emitted from the light source into substantially parallel light, and a plurality of second optical elements arranged in a first direction. Each of the plurality of second optical elements has a light incident surface. Each of the plurality of second optical elements guides at least a portion of the substantially parallel light incident on the light incident surface in a second direction intersecting the first direction and guides another portion in the first direction.

A light-emitting device includes: a light guide that includes (i) a light-transmissive member that is light-transmissive at least in a visible light region and (ii) a light control layer that is disposed on at least a part of a surface of the light-transmissive member; and a light source that emits light toward at least one end surface of the light-transmissive member. The light control layer has reflected-wavelength selectivity that makes a wavelength of reflected light dependent on an incident angle of incident light.

A reversible LED lamp has a fixed support including first and second plate bodies. One side of the first body is connected to the second; the other is connected to a first limiting member. A rotating support includes a third plate body and rotating support member. One side of the third body is connected to a first rotating portion; the other side is connected to the rotating support member, below the second and third bodies. A side of the rotating support member close to the second body is flush therewith. The plate bodies and rotating support member form a power supply installation space. A light-emitting assembly is in a light source installation space in the rotating support member. When a power supply in the power supply installation space is repaired/replaced, the rotating support is unfolded. The rotating support is rotatable in the fixed support, which has an avoidance groove.

A reversible LED lamp has a fixed support including first and second plate bodies. One side of the first body is connected to the second; the other is connected to a first limiting member. A rotating support includes a third plate body and rotating support member. One side of the third body is connected to a first rotating portion; the other side is connected to the rotating support member, below the second and third bodies. A side of the rotating support member close to the second body is flush therewith. The plate bodies and rotating support member form a power supply installation space. A light-emitting assembly is in a light source installation space in the rotating support member. When a power supply in the power supply installation space is repaired/replaced, the rotating support is unfolded. The rotating support is rotatable in the fixed support, which has an avoidance groove.

An optical device including a support mounted on a rotational-drive motor, and a reflective optical component, the support including at least one sleeve coaxial with the rotational-drive axis, of which sleeve one end defines an inlet orifice and which sleeve in its wall includes an opening defining an outlet orifice, and inside which sleeve the reflective optical component is housed in such a way that a beam of light entering via the inlet orifice is reflected by the reflective optical component to exit via the outlet orifice. An optical component mounted and retained in the sleeve as a result of cooperation of shape between it and the wall of said sleeve is also discussed.

An illumination apparatus includes a main light source, a half minor, and a diffusion plate. The main light source emits main light. The half mirror is spaced apart from the main light source. The half mirror reflects a first light travelling in a first direction among the main light source. The half mirror has a reflective surface reflecting the first light to travel in a second direction. The diffusion plate is disposed between the main light source and the half mirror not overlapping the reflective surface. The diffusion plate has a first horizontal surface and a second horizontal surface. The second horizontal surface is a rear surface of the first horizontal surface. The diffusion plate transmits a second light incident on the first horizontal surface among the main light. The diffusion plate scatters the second light from the second horizontal surface.

An illuminated display device for a jack-o-lantern container having face holes, the device having a light bearing substrate with a front portion, a rear portion, and a slot proximate the rear portion, a light source arranged on the light bearing substrate. The spikes protrude from the front portion of the light bearing substrate and engage an inner surface of the front of the container to secure the device within the container proximate one of the face holes. A reflector plate is positioned in the slot. The slot is oriented with respect to the light bearing substrate to position the plate at an operational angle with respect to the light bearing substrate, with a portion of the light bearing substrate oriented toward the spike and located above the light source, to direct light from the light source through at least one of the face holes.