Optic lens to collimate/focus light from a LED.

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SUMMARY

To collimate light from an LED, a lens with a focal length between 10-30mm is recommended. The discussion emphasizes the importance of achieving a divergent/convergent angle smaller than 1 degree. Utilizing the thin lens equation is essential for calculating the appropriate lens parameters. The choice between collimation and focusing is clarified, with a preference for collimation in this context.

PREREQUISITES
  • Understanding of optical principles, specifically collimation and focusing.
  • Familiarity with the thin lens equation and its applications.
  • Knowledge of LED light characteristics and behavior.
  • Experience with selecting optical components for specific applications.
NEXT STEPS
  • Research the thin lens equation and its practical applications in optics.
  • Explore different types of lenses suitable for LED collimation, such as aspheric lenses.
  • Investigate LED specifications to determine optimal light output for collimation.
  • Learn about optical design software for simulating lens performance.
USEFUL FOR

Optical engineers, lighting designers, and anyone involved in the design and implementation of LED lighting systems seeking to optimize light collimation.

David_woo
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Hello.

I'm looking for a lens that can collimate (or focus far away >500mm ) a light coming out from a LED.

before I give more details is this even possible?

Thanks.
 

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Science news on Phys.org
Take a pick, do you want it collimated or focused?
 
if the focused focal is far away it doesn't matter, I just looking for divergent/convergent angle smaller to 1 degree.

but if you want a pick let's said collimator.
 
A point source at the focal distance of a lens will produce a parallel beam out. So you want a 10-30mm focal length lens.

You need the thin lens equation.
 

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