Lens system for a video endoscope, endoscope objective, video endoscope, and assembly method
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United States of America
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Nov 12, 2024
Grant Date -
May 27, 2021
app pub date -
Nov 25, 2020
filing date -
Nov 25, 2020
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Abstract
A lens system (1) for a video endoscope comprises, in order from an object side, a cover glass (20), a first lens (40), a second lens (60) and one or more further lenses, wherein all lenses are single lenses. An aperture stop (21) is arranged at the object side of the first or the second lens (40, 60), all lenses on an image side of the aperture stop (21) are aspherical, all lenses are made of glass or of a crystalline material, and at least one lens has a refractive index n approximately equal to or exceeding 1.66. The invention also relates to an endoscope objective, to a video endoscope, and to a method for assembling an endoscope objective.
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