An optical device, such as a pair of field glasses or opera glasses, designed for simultaneous use by both eyes and consisting of two small telescopes joined with a single focusing device. Often used in the plural.

• 双目镜由两个小望远镜和一个调焦设备组成的光学设备，如一副双筒望远镜或观剧用的小望远镜，设计为同时用双眼观看。常用复数形式