| 释义 |
biplate Optics.|ˈbaɪpleɪt|
[bi-2.]
A combination of two glass plates used in polariscopic observations.
1890T. Preston Th. Light 121 Bi-plates.—A beam of light may be subdivided by refraction through two plates, of the same nature and equal thickness, placed at an angle. 1904A. Schuster Th. Optics iv. 80 The ‘bi-plate’..serves either to separate or to bring together two parallel beams of light. It consists of two plane parallel plates of glass cemented together at an angle. |