A new design of a 10× microobjective having a numerical aperture of 0.25 and comprising four elements has been developed. The performance of this design has been compared with the performance of the Listertype objective having the same numerical aperture and magnification. The new design is found to give better performance than the Lister construction.
© 1984 Optical Society of America
K. D. Sharma, "Low power microobjective: a new design," Appl. Opt. 23, 2715-2717 (1984)