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But, those lines don't seem to conform to the rules typically used in thin lens ray traces. An example of which is below:

Full width at half maximumformula

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by HC Beck · 1928 · Cited by 17 — Also, although the amount of transparent glass made in Egypt at that time was only a trifling proportion of the total output, much of the Aegean glass was ...

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The video below describes the nature of the chief and marginal rays. It says, among other things, that marginal rays start at the bottom of the image and chief rays start at the top. It even passingly describes the exit angle of the marginal ray as being a function of the F-Number of the lens. The problem is he doesn't go into much detail and I havent been able to corroborate the equation with another source.

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Full width at half maximumgraph

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As for the second half of the trace: if the chief ray passes the aperture stop on the optical axis, then it must also pass the "image" of the aperture stop at that place - which gives rise to the trace that gets you the rest of the image.

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Apr 26, 2024 — As a general rule of thumb for focal lengths, focal length smaller than 35mm are generally classified into wide-angle lens, lenses around 50mm ...

I did some digging and I found a blog that indirectly, but the none the less explicitly, talks about ray tracing chief and marginal rays in thin lens systems:

https://www.mathworks.com/matlabcentral/answers/310113-how-to-find-out-full-width-at-half-maximum-from-this-graph#answer_864030

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Full width at half maximumcalculator

Provided you know the diameter and focal length of the lenses in a system, what are the rules for ray tracing the chief and marginal rays? If its even possible.

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Full width at half maximumexample

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Full width at half maximumfwhm

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LASER meaning: a device that produces a narrow and powerful beam of light that has many special uses in medicine, industry, etc. often used before another ...

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Any pair of straight lines that gets from A to B is valid - although when you are trying to construct where the internal focal plane is, the construction as drawn is not useful, once you know where it is you can draw any of a family of lines, including the one shown.

Angle of view (photography) ... For broader coverage of this topic, see Field of view. In photography, angle of view (AOV) describes the angular extent of a given ...

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Full width at half maximumpdf

The equations he presents are the literal mathematical relationships between incoming and out outgoing ray angles (of any type) and it has a spreadsheet linked to the bottom that walks through both chief and marginal ray examples. I say walk-through, but really you'll need to watch the video I linked to above and pay careful attention to the cell math in order to get whats going on (at least I did).

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All you need to know about the chief ray is that it will show up in the right place at the focal plane. Any path that gets there is valid. You will see that this is indeed the case for your example - the ray starts up at the top of the image (tip of the arrow) and passes through the tip of the arrow in the "internal image" plane.

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Full width half maximumresolution

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Full width at half maximumXRD

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