| 单词 | prism binocular |
| 释义 | > as lemmasprism binocular prism binocular n. (in singular and plural) binoculars containing two pairs of triangular prisms, introduced so as to shorten the instrument and improve the stereoscopic effect. ΘΚΠ the world > physical sensation > sight and vision > optical instruments > instrument for distant vision > [noun] > binoculars or field-glasses prospective glass1616 spectacle telescope1728 field glass1782 race-glass1843 racing glass1854 bird glasses1900 prism binocular1901 prismatic binoculars1905 1901 Brit. Optical Jrnl. Sept. p. iv (advt.) Busch's Prism Binoculars... The lightest and most portable Prism Binocular on the market. 1957 Encycl. Brit. III. 583/2 Ernst Abbe took the matter up de novo in 1893 when he designed prism binoculars and telescopes. His constructions were the forerunners of the modern prism binocular. 1995 Kay & Co. (Worcester) Catal. Autumn–Winter 675/1 (caption) Compact prism binoculars with 7 x magnification..Central focusing. < as lemmas |
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