Low-pressure discharge lamp and electrical base structure
AssigneeKabushiki Kaisha Toshiba
InventorsMasami Takagi, Shinichi Tsunekawa, Kenji Ohkubo
Life of this patent
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Abstract
A low-pressure discharge lamp includes a bulb and a pair of bases attached to the end portions of the bulb, respectively. Each base has a base body fixed to the end of the bulb and a pair of terminals attached to the periphery of the base body. The terminals have contact portions which project from the periphery of the base body and include contact surfaces extending parallel to the axis of the bulb and facing the same direction. The contact surfaces are located so as to contact a common plane.
Claims20
A low-pressure discharge lamp comprising:
- a bulb having two end portions, an electrode contained in each end portion of said bulb;
- and
- a base fitted at each of the end portions of said bulb, each base having a base body the periphery of said base body having a flat surface portion, and a pair of terminals connected to said electrode and attached to the flat surface portion, said terminals having contact surfaces which extend substantially parallel to the axis of the bulb and are to be connected to power supply means.
A low-pressure discharge lamp comprising:
- a bulb having two end portions and electrodes contained in the end portions, respectively;
- and
- a pair of bases each having a base body which is attached to one of the end portions of the bulb, the periphery of said base body having a flat surface portion, and a terminal attached to the flat surface portion and having a contact surface extending substantially parallel to the axis of the bulb, said contact surfaces of the terminals are directed in the same direction.
A lighting apparatus comprising:
- a low-pressure discharge lamp including:
- a bulb having two end portions and electrodes contained in the end portions, respectively;
- and
- a pair of bases each having a base body which is attached to the end portion of the bulb, the periphery of said base body having a flat surface portion, and a pair of terminals connected to the electrode and attached to the flat surface portion to be arranged side by side, said terminals having contact surfaces which extend substantially parallel to the axis of the bulb, and said base body having an engagement section;
- a pair of sockets to which said bases are connected, each of said sockets including:
- a base portion;
- holding means for engaging the engagement section of the base body to hold the base;
- and
- a pair of power-supply terminals mounted on the base portion, and held in contact with the contact surfaces of the terminals attached to the base body while the holding means engages with the engagement section.
Dependencies are inferred from the claim text.