OPTI 201R 10 L20 - 20-1 Chapter 7Thick Lenses "A real...

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OPTI 201R Fall 2010 20-1 Chapter 7—Thick Lenses "A real lens has axial thickness…" ! two radii of curvature, one for each surface (front and back). ! some non-zero edge thickness. ! The line connecting the two centers of curvature is the optical axis. ! t = 0 assumption " ! thin lens $ thick lens where: 12 thin lens surface surface "# thick lens surface surface surface surface lens t n $% " # & () *+
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OPTI 201R Fall 2010 20-2 Example: KBX058 bi-convex (+75.6 mm f.l.) lens from the Newport lens kit in our lab: t = 5.102mm; n g = 1.517 ; R 1 = 77.265mm ; R 2 = -77.265mm 12 1.517 1 1 1.517 .077265 .077265 13.383 ; 74.72 thin thin mm D f mm ! , && " # " # & " " 2 1 2 1 2 1.517 1 1 1.517 .005102 1.517 1 .077265 .077265 1.517 .077265 13.232 ; 75.57 thick g thick tm n m m m D f mm ! ! , & $% " # & " # & () & *+ " " 74.72 75.57 % 100% 1.72% 75.57 mm mm error mm & " - " & ______________________________________________ KPX088 plano-convex (+75.6 mm f.l.) lens from the Newport lens kit in our lab: t = 5.122mm; n g = 1.517 ; R 1 = 39.07mm ; R 2 = % 1 2 1 1.517 1 .03907 13.23 ; 75.58 thin thin m D f mm , & " # " " " " 1 2 1 2 1 1.517 1 .03907 13.23 ; 75.58 thick g thick t nm D f mm , & " # & " " " " 75.58 75.58 % 100% 0% 75.58 mm mm error mm & " -" …the error depends on shape factor…
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OPTI 201R Fall 2010 20-3 7.1 Principal Points—P and P * (2 of the 6 cardinal points) Figure 7.1 Principal planes for: (a) a thin lens, and (b) a SRS. ! Principal planes are imaginary planar surfaces that are the equivalent refracting surfaces of: - a single refracting surface ("SRS"). - a single reflecting surface. - a thin lens. - a combination of thin lenses. - a thick lens. - a combination of thick lenses. - a combination of lenses and mirrors… !
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This note was uploaded on 08/23/2010 for the course OPTICS 201R taught by Professor Staff during the Spring '10 term at University of Arizona- Tucson.

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OPTI 201R 10 L20 - 20-1 Chapter 7Thick Lenses "A real...

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