multiple lensbuildup

multiple lensbuildup - ray Start with principal ray...

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3/6/11
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3/6/11 The optical system
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3/6/11 Pick an object, note focal planes
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3/6/11 Draw principal ray, axial ray
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3/6/11 Can add ray that ends up axial Must pass through front focal plane This locates image through first lens, which acts as object for second lens Real or virtual? Real. Light really goes there.
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3/6/11 Note focal plane(s) of second lens
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3/6/11 Principal ray from object
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3/6/11 Bend axial ray through f2 To intersect principal ray, have to extend it backward Light does not really go there Virtual image Acts as object for next lens
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3/6/11 Principal ray for lens 3 through object
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3/6/11 Axial ray passes through axis at focal plane
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3/6/11 Next, handle arbitrary ray Arbitrary
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Unformatted text preview: ray Start with principal ray parallel to arbitrary ray 3/6/11 Parallel rays intersect at focal plane Locates third image Real or virtual? Real: rays really go there (or they would if the next lens wasn’t in the way) 3/6/11 Can add some more arbitrary rays 3/6/11 They must all go to image 3/6/11 Image is real, but is to right of lens 4 Light passing through L4 doesn’t really come from the object: virtual object 3/6/11 Note this image is a virtual object Draw the axial ray 3/6/11 Ray really passes through axis at focal plane 3/6/11 Principal ray (travels from left to right) 3/6/11 All rays must intersect at image Real or virtual?...
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multiple lensbuildup - ray Start with principal ray...

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