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Dome magnifier : ウィキペディア英語版 | Dome magnifier
A dome magnifier is a dome-shaped magnifying device made of acrylic plastic typically that enlarges words on a page or computer screen into a larger image (). Most dome magnifiers' perimeters are from 3 to 7 inches. They usually magnify to ×4 (). Dome magnifiers are mainly used by the visually impaired. They are good for reading maps or basic text and their inherent 180° design naturally amplifies illumination from ambient side-light.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Dome magnifier」の詳細全文を読む
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