A lighting module for a refrigeration appliance has a housing provided with a light outlet. The housing includes a supporting edge surrounding the light outlet and an inner frame disposed along the supporting edge. The inner frame protrudes from the supporting edge in a direction away from the light outlet. The housing further has a light source. The light source includes a light emitting element and a substrate bearing the light emitting element. The light guide plate is supported on the supporting edge and includes a first end surface protruding toward the inner frame. The housing includes a mounting portion located in a space defined by the first end surface of the light guide plate, the supporting edge, and the inner frame. The substrate is mounted on the mounting portion, so that the light emitting element and the first end surface of the light guide plate face each other.

A shelf includes a shelf panel and an illumination module. The shelf panel has an upper surface, a lower surface, and an edge extending between the upper and lower surfaces. The upper surface is capable of supporting articles thereon. The illumination module is coupled to the shelf panel and includes a first plurality of lights emitting visible light when powered, and a second plurality of lights emitting light having a germicidal effect when powered.

A refrigerator appliance includes a liner positioned within a cabinet, the liner having an inner liner surface that defines a chilled chamber and an aperture that passes through the liner. A light assembly is mounted to the liner and includes a light source positioned within a light housing in the insulated space between the liner and the cabinet. A lens is mounted to the light housing and is positioned within the aperture, the lens defining an outer lens surface that sits flush with the inner liner surface and an inner lens surface defining a plurality of refractive grooves.

There is disclosed a refrigerator; a lighting device provided in the storage chamber, a first door rotatably coupled to the case to open and close the storage chamber, an auxiliary storage chamber provided in the first door, a second door, a front panel formed of a transparent material, an evaporation treatment unit evaporated on an overall back surface of the front panel to transmit lights partially, a variable transparency film attached to a back surface of the evaporation treatment unit provided in the front panel to get transparent when the power is supplied, a frame unit with an opening having a corresponding size to an opening provided in the first door, an insulation panel distant from the front panel, a power supply unit for supplying an electric power to the variable transparency film and the lighting device, a proximity sensor provided in the second door to sense a user's approaching.

A door assembly is used for a refrigerator and a home appliance. The door assembly includes a door body, and a lighting panel coupled to a front surface of the door body. The lighting panel includes a panel frame with a coupling space, and a lighting device is installed to the panel frame. A light guide panel is arranged in the coupling space. A front panel is arranged on a front surface of the lighting panel in parallel to the light guide panel. A diffusion panel is arranged between the front panel and the light guide panel. Therefore, a user can change a color of a door surface by the lighting device without replacing a door panel, and the diffusion panel diffuses light once to make the light uniform.

A refrigerator includes a cabinet and a liner disposed within the cabinet. The liner defines a keyed aperture and a lateral slot. The refrigerator includes a lighting assembly disposed within the cabinet. The lighting assembly includes a housing that includes a body extending laterally between a first end and a second end. The housing includes a rim coupled with the body. The rim extends laterally between the first end and the second end. The rim is configured to be received by the keyed aperture. The rim received by the keyed aperture restricts transverse movement of the housing. The housing includes a lateral locator extending from the body toward the liner. The lateral locator is configured to be received by the keyed aperture to restrict lateral movement of the housing. The refrigerator includes a light coupled with the housing. The light is directed into the cabinet.

A household appliance includes an ambient light detection unit that has a sensor housing and a brightness sensor that detects the brightness of the light in the environment of the household appliance. The brightness sensor is disposed in the sensor housing. The household appliance has a housing having a front strip and a door fastened to the housing. The ambient light detection unit is disposed on a front strip or on a door closure strip of the door. A method is disclosed for the specific setting of the brightness of an illuminating apparatus for a household refrigeration appliance.