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Self - luminous pen / pen

Self - luminous pen

The self luminous pen integrates writing, lighting and ruler. The lighting is made of rare earth long afterglow luminescent materials, which can emit light continuously for more than 10 hours in the dark under the condition of outdoor natural light irradiation for 10 to 15 minutes. It can effectively solve the problem of children learning with eyes in the dark in poor areas.

University

Zhejiang University

Zhejiang University
Hangzhou, China

WANY ZIYU,
Zhejiang University

WANG SHI ,
Zhejiang University