Lens shapes other than conic sections

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SUMMARY

The discussion centers on lens shapes beyond traditional conic sections, highlighting the significance of aspheric and Fresnel lenses. Aspheric lenses are defined by an infinite geometric sum, providing unique optical properties. Fresnel lenses, utilized in missile guidance applications, are shaped based on aerodynamic requirements rather than purely optical considerations. The concept of "conformal optics" is also mentioned as a notable trend in lens design.

PREREQUISITES
  • Understanding of aspheric lens design principles
  • Familiarity with Fresnel lens applications
  • Knowledge of geometric series in optics
  • Basic concepts of conformal optics
NEXT STEPS
  • Research the mathematical formulation of aspheric lenses
  • Explore the applications of Fresnel lenses in modern technology
  • Investigate the principles of conformal optics and its advancements
  • Study the impact of aerodynamics on lens design in military applications
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Optical engineers, lens designers, and researchers interested in advanced lens technologies and their applications in various fields.

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This is just a curiosity question. Are there lens shapes different than just conic sections? Any research or any found applications?
 
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Lenses can be in any shape, but specific shapes are more useful for specific purposes than others.

For example, check out the aspheric lens, it's described by an infinite geometric sum.

Or also check out the Fresnel lens.
 
The front lens used in missile guidance applications have a shape dictated by aerodynamics, not optics. "Conformal optics" was trendy for a while.
 

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