| 摘要 |
916,290. Microscope objectives. WILD HEERBRUGG A.G., and BERTELE, L. J. June 27, 1961 [Nov. 16, 1960], No. 23304/61. Addition to 889,687. Class 97 (1). The objective of the parent Specification has at least four collective components in front of the thick meniscus so as to improve correction at higher apertures. Optical data are given for one example of the objective shown. |
