Provided is a refrigerator. The refrigerator is characterized by enabling at least a part of a refrigerator door to be selectively transparent by a user's operation, such that the user sees through an inside of the refrigerator while the refrigerator door is closed.

A light-emitting module includes a light-emitting plate including a light-irradiating surface including a plurality of striped-pattern light-emitting units, and a reflecting member including a reflecting surface to reflect light emitted from the light-irradiating surface of the light-emitting plate toward a target surface of an object. Light at a peak luminous intensity in a light distribution in a first region of the light-irradiating surface is sent to a first region of the target surface via a first region of the reflecting surface. Light at a peak luminous intensity in a light distribution in a second region of the light-irradiating surface is sent to a second region of the target surface via a second region of the reflecting surface.

Various light fixtures are provided for mounting within and below suspended grid ceilings incorporating T-bars and ceiling panels. The light fixtures comprise a double or single edgelit planar or wedge shaped optical element that functions simultaneously as an outcoupling TIR light guide and a light scatterer or direct throughput lens. It provides a number of benefits because of its edgelit design including; thin forms and shallow depth, extended emitting area and controlled lighting distributions from one or two light guide faces. Additionally, areas typically dedicated to bezels or edge reflectors can be greatly reduced or eliminated due to decreased hotspotting to provide a fixture face with very high percentage of light emitting area. Embodiments are described for direct, indirect, and direct indirect configurations. The embodiments provide increased light output, uniformity of brightness and color and controlled direct and indirect lighting distributions and with single or dual off axis intensity peaks. Such light distributions are particularly useful in applications such as direct illumination of offices, schools, hospitals, retail or commercial spaces and table tops or work surfaces or indirect illumination of ceilings, wall washing and surface area lighting as well as other lighting applications.

A lamp for a vehicle includes: a light source configured to emit light; and a reflector configured to receive and reflect the light emitted from the light source. The reflector includes a first reflection surface, and a surface of the first reflection surface has an uneven shape in which a plurality of convex regions and a plurality of concave regions are repeated. A recessed section, which is recessed downward, is formed in each of the convex regions of the uneven shape, and a protrusion section, which protrudes upward, is formed in each of the concave regions of the uneven shape.

A light emitting device includes: a mounting board; a plurality of light sources positioned on the mounting board; first and second prism array layers stacked with each other; a dichroic layer positioned between the first and second prism array layers and the plurality of light sources; and a wavelength conversion layer positioned between the first and second prism array layers and the dichroic layer.

Lighting controller including control system having first control facility and second control facility. First and second control facilities respectively are for controlling first and second visible-light sources including first and second pluralities of semiconductor light-emitting devices spaced apart from and along longitudinal axis. First and second visible-light sources respectively are positioned for directing first and second beams of first and second visible-light emissions from first and second pluralities of semiconductor light-emitting devices in first and second beam directions. First and second control facilities respectively are programmed for controlling first and second intensities of first and second beams of first and second visible-light emissions. Control system is programmed for modulating first intensity of first beam and second intensity of second beam in manner for causing first and second beams of first and second visible-light emissions to collectively emulate progression of ambient sunlight. Lighting systems and lighting control methods.

An illuminated display device for a hollowed-out pumpkin having face holes, the illuminated display device being installable in an inner volume of the pumpkin that is carved as a jack-o-lantern having the face holes and positioned at a front outer surface of the pumpkin, includes: a light bearing substrate; a light source emitting light substantially omnidirectionally, the light source being arranged on the light-bearing substrate; a spike configured to be releasably engageable with an inner surface of the jack-o-lantern to secure the positioning of the lighting device within the jack-o-lantern proximate one of the face holes; and a reflector to direct light from the light source through at least one face hole to provide the impression to a viewer, if the face hole is an eye cutout, that the eye of the jack-o-lantern is following a passerby.

A method of inactivating one or more pathogens in an environment. The method includes providing light from at least one lighting element of a lighting device installed in the environment, the at least one lighting element configured to provide light toward a target area in the environment, the provided light having at least a pathogen-inactivating first component in a first range of wavelengths of 400 nanometers to 420 nanometers. The pathogen-inactivating first component of light produces an irradiance of at least 0.01 mW/cm.sup.2 as measured at a surface in the target area that is unshielded from the lighting device and located at a distance of 1.5 meters from an external-most luminous surface of the lighting device. Providing the light causes the one or more pathogens to be inactivated.

A method of inactivating one or more pathogens in an environment. The method includes providing light from at least one lighting element of a lighting device installed in the environment, the at least one lighting element configured to provide light toward a target area in the environment, the provided light having at least a pathogen-inactivating first component in a first range of wavelengths of 400 nanometers to 420 nanometers. The pathogen-inactivating first component of light produces an irradiance of at least 0.01 mW/cm.sup.2 as measured at a surface in the target area that is unshielded from the lighting device and located at a distance of 1.5 meters from an external-most luminous surface of the lighting device. Providing the light causes the one or more pathogens to be inactivated.

An illumination device for a vehicle is provided, and includes an optical device such as a reflector, with a dome and with a positioning pin. A light emitting assembly is also included with a printed circuit board and a semiconductor light source such as a light emitting diode. The light emitting assembly comprises a bracket with at least one spring for exerting a pretension force on the dome of the optical device. The printed circuit board comprises a positioning hole for receiving the positioning pin and to position the light emitting assembly relative to the optical device.