Quiz – Understanding Optical Specifications
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Question 1 of 7
1. Question
You are considering buying a lens. You have shortlisted three lenses with the same effective focal length
and f/#s of 1.4, 5, and 10. The goal of your project is to produce highest possible resolution. Which lens
should you choose?
All three lenses are magical and do not experience any aberrations.CorrectIncorrect -
Question 2 of 7
2. Question
Two small circular objects are imaged through a lens. The image appears blurry at the edges. Which physical phenomenon is responsible for this blur?
CorrectIncorrect -
Question 3 of 7
3. Question
You have just purchased a brand-new diode laser that generates radiation at 520 nm. You want to focus
the light to the tightest possible spot with a lens (f/4) that you already own. What will the Airy disk
diameter of this spot be?CorrectIncorrect -
Question 4 of 7
4. Question
Which of the following factors does not play any role in determining the diffraction-limited resolution of an
imaging system?CorrectIncorrect -
Question 5 of 7
5. Question
What working f/# was used to generate the following Airy disk? Assume there are no aberrations.
Hint: the wavelength is listed in the image below as 0.55 μm
CorrectIncorrect -
Question 6 of 7
6. Question
You have purchased an oil immersion (n=1.51) microscope objective with a numerical aperture of 1.40.
What is the angular extent of the light cone that can be captured by this objective?CorrectIncorrect -
Question 7 of 7
7. Question
The Sony ICS 625 sensor consists of an array of 2448 × 2050 pixels where each individual pixel has a
size of 3.45 μm. What is the image space resolution of this sensor in lp/mm?CorrectIncorrect