Work

System of N Thin Coaxial Lenses

Year: 2024
Type: article
Abstract: In geometrical optics, in a system of two thin coaxial lenses, there are several standard formulas, including ā€œšŸš‘­=šŸš’‡šŸ+šŸš’‡šŸāˆ’š’…š’‡šŸš’‡šŸā€. The purpose of this paper is to generalize these formulas to the case of a system of an arbitrary number of thin lenses. In particular, this paper proves that the focal length Fn of a system of n thin coaxial lenses is given by šŸš‘­š’=Ī£{(āˆ’šŸ)š’ŽĪ [(Ī£šŸš’‡š’“š’”š’‚š’”š’“š’”=š’‚š’”āˆ’šŸ+šŸ šŸŽ=š’‚šŸŽ<š’‚šŸ<⋯<š‘Žš’Ž<š’‚š’Ž+šŸ=š’;š’…š’=šŸ )š’…š’‚š’”]š’Ž+šŸš’”=šŸ}š’āˆ’šŸš’Ž=šŸŽ, where, fr is the focal length of the rth lens, and dr is the distance between the rth lens and (r+1)th lens. For a fixed value of m, all combinations of values of the a’s (satisfying the condition ā€œ0 = a0 < a1 < … < am < am+1 = nā€) are taken in the inner sum.
Authors: Burlington, Ontario, Canada., Mohamed Imteaz Karimullah
Language: English
Open Access status: hybrid
OpenAlex ID: W4403847271
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