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Abstract
A systematic approach for paraxial design of anamorphic lenses with double telecentricity is provided. Six types of anamorphic lens systems with double telecentricity are discussed. For available lens types, formulas defining the interval distances between lens components, the object position, the stop position, and the anamorphic ratio are derived. Illustrating figures and examples are also provided. If the telecentric zoom attachment is place behind the stop, the magnification of the whole lens system can be changed continuously, and a fixed distance between the object and the image can be guaranteed during zooming. The paraxial lens design method for the rear telecentric zoom attachment is also provided.
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