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PS12_2005 - OPTI 201R Fall 2005 Problem Set XII Due XII.1...

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OPTI 201R, Fall 2005 Problem Set XII Due November 16, 2005 11/09/05 1 of 2 XII.1 Calculate the LaGrange invariant for a photographic objective F/2.8, e.f.l. = 100 mm, and a full field of view of 5 degrees. XII.2 What is the Lagrange invariant for a 50 mm diameter, F/2.5 thin lens used to image a person 6 feet tall at a distance of 60 feet? What is the needed size of the field stop? XII.3 If a camera lens of 30 mm diameter is F/4 and is used to focus an object 15 cm away, what is the working F/#, if the object is 5mm in height. XII.4 Ray trace a paraxial ray through the two lenses shown below. Determine the BFD distance (F* relative to the negative lens ( φ = -2)). XII.5 Using a ray from infinity, ray trace this marginal ray at y=2 through the lens below determine: a) The location of the principal planes (H*) relative to V 6 . b) The effective focal length (e.f.l.). c) The back focal distance (BFD). d) The (F/#) 5 4235 V 1 V 6 n=1.5 1.7 1.6 y= R 1 =50 R 2 =-50 R 3 =-60 R 4 =60 R 5 =60 R 6 =-60 air air air 20 cm u = 0 φ = 3 diopers φ = -2 diopters F*
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OPTI 201R, Fall 2005 Problem Set XII Due November 16, 2005
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PS12_2005 - OPTI 201R Fall 2005 Problem Set XII Due XII.1...

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