| 摘要 |
A surface waviness measuring apparatus for specularly reflecting surfaces has a light source (22) and an optical system (23) which directs a light beam (24) obliquely onto the surface (14), with the light beam (24) forming a small primary light bead (12) there. A spherical concave mirror (11) is arranged at the angle of reflection ( alpha ) with the center of curvature (13) of the spherical concave mirror being arranged closely adjacent the small primary light bead (12) on the reflecting surface (14). A photoreceiver arrangement (16) is located at the angle of reflection of the light beam (15) reflected from the concave mirror (11).
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