| 摘要 |
PURPOSE: A portable prefabricated telescope is provided to easily understand a structure and principles of a telescope by being directly assembled and manufactured by students. CONSTITUTION: An objective lens(120) is fixed inside the front end of a first lens barrel(110). A second lens barrel(130) is inserted to the inside the first lens barrel in order to be able to slide. An eyepiece is fixed to the rear end of the second lens barrel. A third lens barrel(150) is inserted to the rear end of the second lens barrel in order to be able to slide. A pair of first ring pads(160) is attached inside the first lens barrel. A pair of second ring pads(170) is attached inside the second lens barrel.
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