Why Is It Called the Lens Maker Equation?

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SUMMARY

The term "lens maker equation" refers to a formula utilized by lens manufacturers to calculate the power of a lens. This equation simplifies the process compared to using Snell's law, making it more accessible for practical applications in optics. The discussion also highlights a linguistic note regarding the phrase "I have a doubt," which can imply suspicion in American English, contrasting with its intended meaning of having a question.

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  • Understanding of basic optics principles
  • Familiarity with the lens maker equation
  • Knowledge of Snell's law
  • Awareness of common phrases in English language usage
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  • Research the derivation and applications of the lens maker equation
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thunderhadron
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Hi friends,

I've a very simple doubt.

The lens maker equation, why is it called lens maker equation?
What is the reason behind that?

thank you in advance.
 
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thunderhadron said:
Hi friends,

I've a very simple doubt.

I keep seeing this phrase. What do you mean by "i have a doubt"?

The lens maker equation, why is it called lens maker equation?
What is the reason behind that?

thank you in advance.

I believe because it is used by lens makers. To my knowledge it's a much easier way of finding the power of a lens than trying to use Snell's law and such.
 
Drakkith said:
I keep seeing this phrase. What do you mean by "i have a doubt"?
I believe he means: "I have a question".

I also find it an odd turn of phrase, but it is very common.

FYI: In the US at least, the phrase "I have a doubt" often carries a connotation similar to "I think something fishy is going on" or "I think there's something wrong here". So don't be surprised if people wonder what you mean if you use such a phrase.
 

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