| 摘要 |
Improvements to a 3-way light bulb socket are shown. The major improvement is to replace or complement the rigid middle contact element of the socket with an elastic/flexible contact spring. The 3-way light bulb has a solder blob on its middle contact ring, where said blob usually has a rough, uneven surface, and frequently does protrude beyond the general surface of the bulb middle contact ring. The solder blob interferes with the conventional socket middle contact element, which is rigid, and prevents the system from creating a good, permanent and reliable electrical connection between the socket and the bulb. Potential flicker and discomfort to the user can occur as a result. Also, the operating life of the bulb as well as the power consumption can be affected. The proposed flexible middle contact spring can alleviate most of these problems.
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