The value is only valid in paraxial optics, ie for objects close to the optical axis. Further off the optical axis, the focal distance of distant objects is affected by the spherical aberration. (back focal distance = Back Focal Length = BFL)

FOV tofocal length

Lens-Maker's Formula ... For a thin lens, the power is approximately the sum of the surface powers. The radii of curvature here are measured according to the ...

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Focaldistance vsfocal length

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focallength中文

Back focal lengthformula

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illumination in American English · 1. an illuminating or being illuminated. ; specif.,. a. a lighting up; supplying of light. b. clarification; explanation. c.

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Focal length

Microscope Field of View ... where Sensor Diagonal is the diagonal size of the camera sensor in millimeters (similar to specifying a TV size), and Objective ...

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