Pen or pen sleeve capable of preventing shortsightedness

• Main Author: CHENGBO HE
• Format: Patent
• Language: English
• Published: 01.08.2007
• Subjects: BUREAU ACCESSORIES; IMPLEMENTS FOR WRITING OR DRAWING; PERFORMING OPERATIONS; TRANSPORTING; WRITING OR DRAWING IMPLEMENTS

The utility model discloses a myopia prevention pen or pen cover including a cylinder cover, a vibrating alarm comprised by a thermoelectric pick-up, a control circuit board, a micro oscillator and a button cell is arranged on the cylinder cover, the thermoelectric pick-up of the vibrating alarm is fixed on the dip face of the top cylinder cover, the inductive end is stretch out of the dip face, the outlet end is connected with the control circuit board entry side, the outlet end of the control circuit board is connected with the micro oscillator, the cylinder cover can be the component of the pen bar and can be a individual pen cover, the right writing posture remaining can be alarmed for people, the short sighted generating can be avoided utmost. The utility model has simple structure, low costing, and effective myopia prevention, age 6-18 students is suitable to use the utility model.