Telescopic anti-backlighting cover for level gauge

The utility model belongs to the technical field of leveling assistance, and solves the problems that the conventional anti-backlighting cover cannot stretch and is easy to fall off and wear an objective lens. The telescopic anti-backlighting cover for the level gauge comprises an inner cover body f...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LI SHIHAI, LI WEIJI, YIN SHAN, WANG XUEWEN, HE SONG, GUAN QUANGUI, ZHANG SHIDUO, LI NING, WANG HAO, ZHANG QINGWEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING
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