o                Course homepage, Ongoing Lectures, TT-system
  • Instructor’s weekly informal sessions:

Tu 3:30-4:20, RAS 213 ; Fri 4-5, RLM 5.104

 

Lec. 35 Geometric Optics -- III

o        Demos: 

·         Optical fibers: Transport light energy along a curved path.

·         Divergent rays (virtual focus) vs Convergent rays (real focus)

o        From prisms to convergent and divergent lenses

·         Prism: “bending toward baseline”

·         Intuitive picture on convergent and divergent lenses

o        Curvatures of wave-fronts, and applications

·         Definition: Convergent and divergent curvatures

·         Two lenses problem (IQ 36.4.4a)

§         First lens

§         The curvature C2

§         C2’ and q2

o        Optical instruments

·         The eye: Using the curvature approach

§         Near-sightedness.

§         Far-sightedness.

·         Magnification of compound microscope

§         Determine Mo: Two ways.

§          Determine Me (see text).

·         Rest of Optimal Instruments section (34.6), please read on your own.

Reminders:

  • The handout on the sign convention of geometric optics: Click here.
  • Weekly instructor’s informal session today.  See time and place above.
  • Coming Monday’s class: There will be visitors from the Dean’s office of College of Natural Science. They will observe our use of I-clickers during it- and iq-sessions.  Please make a special effort to be in class on time.