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Laser protractor / Protractor

Laser protractor

When we use the protractor, we will find that it’s hard to measure the angle which is formed by three points far away each other. The design solves the problem. There is a generating laser above the protractor. When the laser passes through the further point, we can read the angle easily.

University

Zhejiang University

Zhejiang University
Hangzhou, ZHEJIANG PROVINCE, China

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Design

Zhejiang University

Zhejiang University
Hangzhou, ZHEJIANG PROVINCE, China

Tang zhichuan, Yang zhongliang, Chen yumiao, Wang chao

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