Self-ballasted fluorescent lamp
First Claim
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1. A fluorescent lamp apparatus comprising:
- a fluorescent tube;
a ballast circuit for lighting the fluorescent tube;
a case for housing the ballast circuit; and
a holder provided at an end of the case for holding the fluorescent tube, wherein the ballast circuit comprises at least a first circuit board and a second circuit board, a second circuit board is arranged to be substantially perpendicular to the first circuit board, and the first circuit board is arranged between the holder and the second circuit board so as to be substantially perpendicular to a central axis of the case.
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Abstract
A fluorescent lamp apparatus includes a fluorescent tube, a ballast circuit for lighting the fluorescent tube, a case for housing the ballast circuit and a holder provided at the end of the case for holding the fluorescent tube. The ballast circuit includes at least a first circuit board and a second circuit board, and the first and second circuit boards are arranged substantially perpendicular to each other in the case. This configuration can suppress an increase in the size of the apparatus and prevent thermal damage to the circuit elements during lamp operation.
23 Citations
6 Claims
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1. A fluorescent lamp apparatus comprising:
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a fluorescent tube;
a ballast circuit for lighting the fluorescent tube;
a case for housing the ballast circuit; and
a holder provided at an end of the case for holding the fluorescent tube, wherein the ballast circuit comprises at least a first circuit board and a second circuit board, a second circuit board is arranged to be substantially perpendicular to the first circuit board, and the first circuit board is arranged between the holder and the second circuit board so as to be substantially perpendicular to a central axis of the case. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification