Abstract: A fluorescent-lighting adaptor assembly for a fluorescent lamp which has at least one light-emitting tube, a base, and electrical contacts on said base includes an electrical adaptor and a heat sink. The electrical adaptor includes an enclosure and electrical sockets configured to receive the lamp contacts on the enclosure. The enclosure defines at least two housing portions radially separated by at least one window and a ballast in at least one of the housing portions. The heat sink includes a wall surrounding the light-emitting tube, a heat coupling surface of the wall facing the light-emitting tube and configured to couple heat between the light-emitting tube and the wall, and a heat dissipation surface. The heat dissipation surface of the wall is positioned in the window between the enclosure portions and is configured to dissipate heat to the atmosphere.

Abstract: A lamp adaptor for adapting a lamp to an incandescent lamp socket includes a body and a contact assembly. The body includes an electrical circuit for converting incandescent lamp electrical supply levels to electrical supply levels of the lamp. The contact assembly is connected with the electrical circuit and configured to threadably connect with an incandescent lamp socket by rotating the contact assembly in a forward radial direction. The contact assembly includes a conducting screw shell that is configured to threadably engage in an incandescent lamp socket, a support defined by the body for the screw shell, and a ratchet coupling the screw shell with the support. The rachet provides a grip between the screw shell and the support when the contact assembly is rotated in the forward radial direction.

Abstract: A multi-component adaptor assembly for converting an incandescent light fixture for use with another lamp. The adaptor assembly is comprised of an adaptor and a connecting assembly. The connecting assembly has a base that inserts within an Edison socket and a top which connects with the adaptor. The adaptor has a housing having a first connector for receiving a lamp and a second connector for mounting on the top of the connecting assembly.

Abstract: A replacement fluorescent lighting adaptor for adapting a fluorescent lamp to an incandescent lamp connector includes a base defined by an annular inner wall and an annular outer wall surrounding the inner wall and spaced from the inner wall defining a cavity. The inner wall includes a contact assembly for making electrical contact with the fluorescent lamp contacts and a portion to receive the fluorescent lamp base. A reflector including a narrow neck portion and a longitudinally, outwardly expanding portion is fitted to the base receiving portion by the narrow neck portion. The cavity includes a first cavity portion between the lamp base-receiving portion and the outer wall in which an annular electrical ballast member is positioned. The outer wall is spaced from the reflector in order to improve heat dissipation of the electrical ballast. An annular capacitive device is positioned in a second cavity portion between the contact assembly and the outer wall.

Abstract: A replacement fluorescent lighting device includes a fluorescent lamp having a plurality of parallel tubes elongated along an axis and a reflector with an annual reflecting inner surface surrounding the tubes. The inner surface includes at least one surface, or surface segment, that is defined by a geometric curve rotated at least partially about a given axis, with the curve having a focal point that is laterally offset from the given axis in order to have a focal ring segment to enhance light emitted by the surface of the fluorescent tubes. Multiple surface segments are defined about an axis offset from the lamp axis of elongation and spaced radially around the fluorescent lamp. These segments are positioned at major lumen output lobes of the lamp.

Abstract: A compact low-pressure gas discharge lamp assembly includes a base and a plurality of low-pressure gas discharge light generating elements mounted to the base. Each of the light generating elements is capable of being individually energized. A ballast circuit is provided which is capable of supplying electrical energy to a variable number of the low pressure gas discharge lighting elements. A three-way switch has an input connected with the ballast circuit and two outputs. Each output is connected with a different light generating element. The switch connects one of the outputs with the ballast circuit in a first switch position and another one of the outputs with the ballast circuit in a second switch position. Both of the outputs are connected with the ballast circuit in a third switch position. The ballast circuit includes an oscillator that oscillates at a frequency that varies as a function of the number of light generating elements connected by the switch to the ballast circuit.

Abstract: A fluorescent trouble light conversion set includes a socket adaptor which receives a single-ended fluorescent lamp and screws into a standard screw socket. A wall adaptor which plugs into an AC wall outlet is provided to supply power for the fluorescent lamp. The wall adaptor includes a housing for a ballast and transformer, and a socket for receiving the plug from a lamp having the fluorescent lamp mounted therein to supply power for the bulb. The socket is connected to the housing by a cord.