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2. Anglepoise lamp - Wikipedia

   en.wikipedia.org/wiki/Anglepoise_lamp

   Close-up of the springs on an Anglepoise 90 lamp. A key feature of the Anglepoise design and patent is the placement of all springs (either three or four) near the base. The design was extensively copied by other companies, usually in simplified form, and is still in use. Some derivatives use a heavy balance weight instead of the springs.

3. Balanced-arm lamp - Wikipedia

   en.wikipedia.org/wiki/Balanced-arm_lamp

   A balanced-arm lamp, sometimes called a floating arm lamp, is a lamp with an adjustable folding arm which is constructed such that the force due to gravity is always counteracted by springs, regardless of the position of the arms of the lamp. Many lamp brands (such as the Anglepoise, originator of the concept, and Luxo L-1), as well as other ...

4. Inductive charging - Wikipedia

   en.wikipedia.org/wiki/Inductive_charging

   Inductive charging. The primary coil in the charger induces a current in the secondary coil in the device being charged. Inductive charging (also known as wireless charging or cordless charging) is a type of wireless power transfer. It uses electromagnetic induction to provide electricity to portable devices. Inductive charging is also used in ...

5. Banker's lamp - Wikipedia

   en.wikipedia.org/wiki/Banker's_Lamp

   The banker's lamp is a style of electric desk or table lamp often characterized by a brass stand, green glass lamp shade, and pull-chain switch. Such a lamp was first patented in the United States under the Emeralite brand name. These types of lamp are frequently used in libraries throughout the United States, which have made the lamp popular ...

6. Tensor lamp - Wikipedia

   en.wikipedia.org/wiki/Tensor_lamp

   United States. A Tensor lamp is a trademarked brand of small high-intensity low-voltage desk lamp invented by Jay Monroe. [1][2] The lamp was mainly popular during the 1960s and 1970s. [3][4] The lamp was originally used by doctors and dentists, and later became more widely used. [5] The first prototype was created in 1959, and the lamp was ...

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