VISION DISTANCE ALARM

VISION DISTANCE ALARM

The utility model relates to a vision distance alarm, which comprises a case body with a hole and a ribbon-shaped fixer, wherein, the case body is provided with power supply, an emitter, a receiver, and a signal output device. When used, the utility model is worn on the wrist or the finger of a pers...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: LU RUIDIAN
Format: Patent
Sprache:eng
Schlagworte:
ALARM SYSTEMS
ORDER TELEGRAPHS
PHYSICS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
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Beschreibung
Zusammenfassung:The utility model relates to a vision distance alarm, which comprises a case body with a hole and a ribbon-shaped fixer, wherein, the case body is provided with power supply, an emitter, a receiver, and a signal output device. When used, the utility model is worn on the wrist or the finger of a person, making the loophole of the vision distance alarm align to the face of the person, and when the vision distance is too short, the vision distance alarm can send out alarm signals with red light.