Fluorescent lamp assembly with nightlight
First Claim
1. A compact fluorescent lamp unit comprising:
- a housing having a lower end and an upper end;
a housing cover to cover said upper end of said housing;
a fluorescent tube supported by said housing cover and located on top of said housing cover;
a low power light source supported by said housing cover;
an electrically conductive base attached to said lower end of said housing to mate with a lamp socket and includes a first contact terminals, a second contact terminal and a third contact terminal positioned on said base so as to establish electrical contact with socket contacts when said base is received in the lamp socket;
a first circuit coupled between said fluorescent tube and a first pair of said contact terminals of said base to drive said fluorescent tube; and
a second circuit coupled between said low power light source and a second pair of said contact terminals of said base to drive said low power light source.
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Accused Products
Abstract
A compact lamp unit is described which functions both as a fluorescent lamp and as a nightlight. The lamp unit includes a housing, a fluorescent tube, a low power light source, a conductive base and first and second circuits. The housing is used to contain a number of components and to support the fluorescent tube and low power light source. The conductive base is attached to a neck portion of the housing and has contact terminals adapted for a three-way lamp socket. The first circuit is electrically connected between the fluorescent tube and two of the contact terminals to drive the fluorescent tube. The second circuit is electrically connected between the low power light source and two of the contact terminals to drive the low power light source.
66 Citations
26 Claims
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1. A compact fluorescent lamp unit comprising:
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a housing having a lower end and an upper end;
a housing cover to cover said upper end of said housing;
a fluorescent tube supported by said housing cover and located on top of said housing cover;
a low power light source supported by said housing cover;
an electrically conductive base attached to said lower end of said housing to mate with a lamp socket and includes a first contact terminals, a second contact terminal and a third contact terminal positioned on said base so as to establish electrical contact with socket contacts when said base is received in the lamp socket;
a first circuit coupled between said fluorescent tube and a first pair of said contact terminals of said base to drive said fluorescent tube; and
a second circuit coupled between said low power light source and a second pair of said contact terminals of said base to drive said low power light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A compact lamp unit with a heat sink, comprising:
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a fluorescent tube having free ends;
a low power light source;
a support member to support said fluorescent tube and said low power light source, said support member including a support-member cap having lamp-tub-receiving portions to receive said free ends of said lamp tubes and a light source receiving portion to receive said low power light source, said support member further including a support-member base to close a lower open portion of said support-member cap;
a housing having a neck portion;
an electrically conductive base attached said neck portion of said housing, said conductive base having contact terminals;
a first circuit coupled between said fluorescent tube and two of said contact terminals of said base to drive said fluorescent tube;
a second circuit coupled between said low power light source and two of said contact terminals of said base to drive said low power light source. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A portable lamp assembly comprising:
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a compact fluorescent lamp unit having a screw-type conductive base, a first light source and a second light source, a housing, a lamp socket supported by said housing for receiving said screw-type conductive base of said compact fluorescent lamp unit, said lamp socket having electrical contacts positioned in said socket to be in electrical contact with contact terminals of the lamp unit when the conductive base is received in said socket;
a cap;
a protective cover positioned between the housing and the cap; and
a switch coupled to said electrical contacts of said lamp socket for selective turning the first light source and the second light source of said compact fluorescent lamp unit on and off. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26)
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Specification