Name: ME 467/567 Optical Measurement and Quality Inspection Minor Quiz 2 1 (8 po

Question

Name: ME 467/567 Optical Measurement and Quality Inspection Minor Quiz 2 1 (8 points) 3D-DIC consists of two cameras to perform the 3D measurement, andth certain angle between the cameras. The angle between two cameras may affect the measurement result Based on your knowledge, what's the advantage and disadvantage if a large angle is used for the DIC system? Pl Please answer the 2 (8 points) Knowing an optical wave can be expressed by a complex function (1) what do the letter "a", the symbols "o" and (2) What is the definition of represent, respectively? 3. (8 points) An optical wave propagates in a medium with a refractive index "n" from A to B knowing the geometrical length from A to B is L (1) What is the optical path Ln? (2) Any changes of the geometrical length 1and the refractive index An will cause an optical path change 1n, what is the relationship among them?

Explanation / Answer

Ans 2)(a) a in the given function is the amplitude of oscillations, w is the angular frequency and, phi is the phase angle of the oscillation.

2)Intensity is Power delivered per unit Area. Intensity is given by:

I = P/A

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