| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an interchangeable lens to be mounted on a mobile phone to optically magnify an object, which allows for easily and reliably adjusting focus and is less likely to go out of focus once focus is accurately adjusted.SOLUTION: An interchangeable lens includes; an ocular lens, an objective lens, a test lens, a lens barrel which fixes the ocular lens, objective lens, and test lens with respect to each other; engaging means for having the lens barrel and a mobile phone to be indirectly or directly engaged; and a helicoid which is located between the ocular lens and a target object to adjust focus by adjusting a distance between the ocular lens and the target object.</p> |
