Abstract: An elongated LED lamp suitable for replacing a fluorescent lamp in a lamp fixture comprises a chassis having a first chassis end with two electrodes adapted to be respectively coupled to two electrodes in the lamp fixture supplying AC power, and a second chassis end. A light source depends from the chassis. A power regulating circuit is mounted to the chassis and is coupled to the two electrodes for providing DC power to the first light source. A first light collector conditions the light it collects light from the first light source for TIR propagation within a side-light distribution arrangement. An elongated side-light distribution portion depends from the chassis and receives light exiting the first light collector. Light-extraction structure extract light from the side of the first portion, along a length of the first portion, in a different direction from the direction of light received from the first light collector.

Abstract: Disclosed is a method of making an arrangement for collecting or emitting light. A flexible sheet of material serves as substrate for a plurality of light collecting or emitting devices mounted in spaced relation on the sheet. The sheet has thereon electrical leads for interconnection to each device. For each device, a respective light coupler is formed by (1) forming a plurality of reflectors on the sheet around the intended periphery of the respective device, by applying reflective material to selected areas of the sheet; (2) forming cut lines around selected edges of the plurality of reflectors; (3) forming fold lines associated with the reflectors; and (4) folding the reflectors and attached substrate away from the substrate portion on which the device is mounted, to form a coupler whose interior is reflective and that is substantially closed around a main axis of light propagation into or from the respective device.

Abstract: An elongated LED lamp suitable for replacing a fluorescent lamp in a lamp fixture comprises a chassis having a first chassis end with two electrodes adapted to be respectively coupled to two electrodes in the lamp fixture supplying AC power, and a second chassis end. A light source depends from the chassis. A power regulating circuit is mounted to the chassis and is coupled to the two electrodes for providing DC power to the first light source. A first light collector conditions the light it collects light from the first light source for TIR propagation within a side-light distribution arrangement. An elongated side-light distribution portion depends from the chassis and receives light exiting the first light collector. Light-extraction structure extract light from the side of the first portion, along a length of the first portion, in a different direction from the direction of light received from the first light collector.

Abstract: Disclosed is a method of making an arrangement for collecting or emitting light. A flexible sheet of material serves as substrate for a plurality of light collecting or emitting devices mounted in spaced relation on the sheet. The sheet has thereon electrical leads for interconnection to each device. For each device, a respective light coupler is formed by (1) forming a plurality of reflectors on the sheet around the intended periphery of the respective device, by applying reflective material to selected areas of the sheet; (2) forming cut lines around selected edges of the plurality of reflectors; (3) forming fold lines associated with the reflectors; and (4) folding the reflectors and attached substrate away from the substrate portion on which the device is mounted, to form a coupler whose interior is reflective and that is substantially closed around a main axis of light propagation into or from the respective device.