A traffic sign board easily identifiable during day and night is provided. The traffic sign board which is easily identified at night includes a flickering operation of a backlight installed inside a frame, and easily identified by a driver during day even on a secluded country road or a deserted road due to flickering of light emitting diode (LED) light projected to a front side through a reflective sheet while the backlight is switched off.

Provided is a side light-emitting type display device having a frame member. The side light-emitting display device having a frame member includes a display assembly configured to guide light to a side surface of the display assembly while displaying an image using light emitted from light sources; a transparent frame member which is configured to surround and fix the display assembly and through which the light guided to the side surface of the display assembly is transmitted; and a side display member provided on a side surface of the transparent frame member, and configured to display information of the image using the light guided to the side surface of the display assembly.

A traffic sign board easily identifiable during day and night is provided. The traffic sign board which is easily identified at night includes a flickering operation of a backlight installed inside a frame, and easily identified by a driver during day even on a secluded country road or a deserted road due to flickering of light emitting diode (LED) light projected to a front side through a reflective sheet while the backlight is switched off.

A graphic luminous device includes a lamp holder, a light source disposed at one side of the lamp holder, a light-guiding board disposed on the lamp holder receiving a light from the light source to guide upward, a diffusion film disposed on the light-guiding board, a shielding board and an outer housing. The diffusion film is used to uniform the light from the light-guiding board. The present disclosure utilizes the opaque second graphic segment on the outer housing and the light-penetrable first graphic segment on the shielding board to be overlapped to produce a contour luminous effect. The second graphic segment is smaller than the first graphic segment, and the second graphic segment is matched with the first graphic segment. In another way, the shielding board is formed with the first graphic segment and the second graphic segment, to produce a contour light-penetrable effect.

A lightbox includes multiple faces. A front face of the multiple faces is faced in a forward direction. A back face of the multiple faces is face in a backward direction. The lightbox includes one or more light sources. The one or more light sources are disposed within the light box. The one or more light sources are arranged to illuminate the front face. The one or more light sources are arranged to illuminate the back face.

An illuminated frame system for framing a display unit, such as a screen and the like, comprises a frame on which lighting means, preferably in the form of LEDs, are arranged. An illuminated frame system of this kind may advantageously be used in gaming devices which have at least one screen.

The invention relates to an emergency luminaire (1) with a housing (2) accommodating a light source (3) and control means (4) configured to control light emission of the light source (3). The housing (2) is configured for attaching an emergency sign unit (5) to the housing (2) such that the light emitted by the light source (3) lights the emergency sign unit (5) when the emergency sign unit is (5) attached. The control means (4) is configured to determine whether the emergency sign unit (5) is attached to the housing (2) or not; and control the light emission of the light source (3) according to a first operation mode when no emergency sign unit (5) is attached to the housing (2), and according to a second operation mode when the emergency sign unit (5) is attached to the housing. The second operation mode is different from the first operation mode.

An illumination assembly includes a light pipe and a light engine. The light pipe has a first edge portion including a light inlet, a first surface including a first light outlet, and a second edge portion including a second light outlet. The light engine is attached to the first edge portion and includes a light source adapted to direct light into the light inlet, whereby light subsequently exits the light pipe through the first light outlet and the second light outlet. The illumination assembly can be used as part of an illuminated sign assembly to provide backlighting and downlighting.

A face-lit waveguide illumination system employing a planar slab or plate of an optically transmissive material. A light source is optically coupled a linear optical element which is formed in or attached to a face of the waveguide and is configured to inject light at an angle permitting for light propagation by means of a total internal reflection. Light is propagated through the waveguide towards a predetermined direction in response to optical transmission and total internal reflection. Light extraction features located along the prevailing path of light propagation extract light from the waveguide and emit such light towards a surface normal direction.

A face-lit waveguide illumination system employing a planar slab or plate of an optically transmissive material. A light source is optically coupled a linear optical element which is attached to a face of the waveguide and is configured to inject light at an angle permitting for light propagation by means of a total internal reflection. Light is propagated through the waveguide towards a predetermined direction in response to optical transmission and total internal reflection. Light extraction features located along the prevailing path of light propagation extract light from the waveguide and emit such light towards a surface perpendicular. In one embodiment, the planar waveguide includes a window pane which provides light transport from one location, where light is injected through the face of the pane, to another location where light is extracted. Additional embodiments of the face-lit waveguide illumination system are also disclosed.