单词 | ellipsoidal reflector |
释义 | ellipsoidal reflector [ǝ´lip`sȯid·ǝl ri`flek·tǝr] OPTICS A concave ellipsoidal surface from which light is specularly reflected; used in a light projector to focus rays from a light source at the near focal point onto the opposite focal point of the ellipse. |
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