קובץ:Positive lens 2.svgDescriptionPositive lens 2.svg English: Positive lens A = optical axis; R1, R2 = radii of curvature; d = lens thickness; F = focal point; f = focal length
קובץ:Lens3b.svgSVG version of image:lens3b.png. (Virtual image formation in a positive lens). Original PNG version created by DrBob at en:wiki as claimed on en:User:DrBob/Figures
קובץ:Lens1 pt.svg|Permission={{GFDL-user-w|en:wikipedia|English Wikipedia|DrBob|migration=not-eligible}} |other_versions=|Category=Finite_imaging_diagrams_of_positive_lenses}} English
קובץ:Lens3 pt.svgWikipedia|DrBob|migration=not-eligible}} |other_versions= |Category=Finite_imaging_diagrams_of_positive_lenses}} Uploaded with derivativeFX) English
קובץ:Lens1b pt.svg-w|en:wikipedia|English Wikipedia|DrBob}} |other_versions=|Category=Finite_imaging_diagrams_of_positive_lenses }} Uploaded with derivativeFX) English