Current location - Health Road Network - Medical equipment - (2010-Chongqing Intermediate Exam) The diagram shows a beam of incident light parallel to the principal optical axis and directed toward a concave lens.
(2010-Chongqing Intermediate Exam) The diagram shows a beam of incident light parallel to the principal optical axis and directed toward a concave lens.
A concave lens has a dispersing effect on the light rays, light rays parallel to the main optical axis through the concave lens, the refracted ray of the reverse extension of the line over the focus.