FT2224 Applied Optics

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FT222/4 Applied Optics

• Module 3
• Simple Optical Systems

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Simple Telescope
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Telescope eyepiece
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Two Component Systems
Afocal M -fo/fe L fo fe
Astronomical Telescope
fo
fe
L
Galilean Telescope
fe
fo
L
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Telescope examples
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Terrestrial Telescope
Kellner Eyepiece
Upright image
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Microscope See Hecht , Chap 5.7.5
Exit pupil matchs eye
Field stop determines angular width of object
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Field Lens
Act to keep diameters to reasonable size Usually
placed near (but not at) an internal image
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Relay Lens
Spaced at focal length Unit magnification
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Condenser
Uniform illumination without image of source