Why we use composed lentiform in optical science?

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SUMMARY

The discussion centers on the use of compound lenses in optical science, specifically to mitigate chromatic aberration, which affects all lenses made from optically transparent materials. Chromatic aberration occurs because the refractive index varies with wavelength, causing different colors to focus at different points. Compound lenses are designed to focus all colors at a single point, resulting in images free from colored fringes. This technology is essential for enhancing the clarity and quality of images in optical instruments.

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  • Knowledge of lens design and construction
  • Basic concepts of refractive index and wavelength
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why we use composed lentiform in optical science?
 
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pedram said:
why we use composed lentiform in optical science?

I am taking a guess here and assuming you are asking why we use compound lenses in optical instruments. This is to reduce or null the effects of chromatic abberation which is inherent in all lenses made from any optically transparent material as refractive index is a function of wavelength. thus a compound lens focuses all colours at a singlt point and you get an image without any coloured fringes.

I hope this answers your question.
 
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