An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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object glass
  بر‌آختی  
barâxti
Fr.: objectif  

The → lens or lenses in the → object end of the body tube of a → microscope, by means of which the rays coming from the object examined are brought to a focus. Same as → objective.

An old term for the → objective lens of a → refracting telescope.

See also: → object; → glass.