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Related to immersion objective: Oil immersion objective

Objective (mutual funds)

The fund's investment strategy category as stated in the prospectus. There are more than 20 standardized categories. E.g. Aggressive growth, balanced.
References in periodicals archive ?
Nikons new silicone immersion objective lens combines high numerical aperture and working distance to enable super-resolution imaging of thick samples as well as correlative imaging with applications such as confocal.
Carl Zeiss Jena produced its first oil immersion objective in 1880, designed by Ernst Abbe, who was the founder of the optical theory of microscope lenses.
The problem can be minimized either by using an objective that is designed to function when focusing through an overlayer of transparent material, such as an oil immersion objective, (23,25) or by using a dry objective that is corrected for a cover slip, (26) and many more researchers are now aware of the problem and are taking steps to minimize it.