| 摘要 |
An adjustable table magnifier, designed to allow users to commonly use it after focusing in accordance with their visual powers, is disclosed. This adjustable table magnifier, has a base unit, an adjustable arm unit mounted to the base unit at its lower end and having a telescopic structure to be adjustable in its length, and a lens unit mounted to the upper end of the adjustable arm unit, and used for magnifying an object. In the table magnifier, the focus length of the lens unit is adjustable by controlling the length of the arm unit.
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