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17 September 2018Optical design of CCF PlanApo microobjectives 50 mm observation and super long working distance
The main difference is a significant expansion of the linear field, which reaches 50 mm in the image plane. However, in this case, a planapochromatic correction must be achieved for the usual visible spectral range. Such a parameter of objectives, like over large working distances – is an additional advantage.
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Dmitry N. Frolov, Olga A. Vinogradova, Alexey D. Frolov, Liyun Wen, Fanhua Jing , "Optical design of CCF PlanApo microobjectives 50 mm observation and super long working distance," Proc. SPIE 10745, Current Developments in Lens Design and Optical Engineering XIX, 107450X (17 September 2018); https://doi.org/10.1117/12.2319840