Optical Power in Dioptres: Lens Combinations & the Idea of an Eyeglass Prescription
This lesson is part of the course
In this lesson
You convert focal lengths to dioptres, combine lenses in contact and with a gap, and estimate the lens power that would correct a far point or help with reading (educational model).
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Lessons in this course
- Speed of Light in Materials & the Refractive Index Locked
- Snell's Law, the Critical Angle & Total Internal Reflection Locked
- The Thin Lens Equation: Image Distance, Magnification, Real or Virtual Locked
- Optical Power in Dioptres: Lens Combinations & the Idea of an Eyeglass Prescription Locked
- Curved Mirrors: Concave & Convex, from Make-Up Mirrors to Car Mirrors Locked
- Photometry: Lumens, Candela, Lux & the Inverse-Square Law Locked
- LED Lighting Design: Lux × Area → Lumens → Number of Fixtures Locked
- Wavelength, Frequency & Photon Energy: E = hc/λ Across the Spectrum Locked