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LED ruler / ruler

LED ruler
LED ruler

The device helps the user to draw a straight line accurately via the projection of the LED lights.Conventionally, rulers designed to prevent ink spread only involved the increase of height between the ruler and the paper surface, which simply makes it more difficult for the user to draw accurate lines. In order to achieve the requirements of avoiding ink spread while maintaining accurate line drawing at the same time, this design uses LED to enhance the accuracy of line drawing that simultaneously solved the above two conflicts.

University

National Cheng Kung University

National Cheng Kung University
Tainan City, Taiwan

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Design

National Cheng Kung University

National Cheng Kung University
Tainan City, Taiwan

Ya-Chuan Ko, Chi-Hung Lo, Chien-Wei Chen, Yi-Hsiu Tseng

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