| 摘要 |
A multi-functional telescopic device is disclosed which can be used as an optical telescope for general long-distance observation and astronomical observation or as a magnifying glass. More particularly, the telescopic device allows for rapidly switching a terminal eyepiece between long-distance observation and a horizontal eyepiece for astronomical observation. The telescopic device is characterized in that a rapidly switching reflective mirror is provided to an end of the terminal eyepiece and the horizontal eyepiece, so that a user can directly rotate an external switching knob to selectively switch the terminal eyepiece and the horizontal eyepiece. As a result, the user can not only observe remote objects conveniently, but also watch the stars directly through the horizontal eyepiece without having to look upwards at a large elevation angle.
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