Patents of William H. Southwell
  1. U.S. Patent No. 3,784,308. Method and apparatus for measuring index of refraction of glass disks.
  2. U.S. Patent No. 3,873,208. Refractometer for measuring the refractive index of solid, liquid, or gaseous materials in cylindrical shapes or containers.
  3. U.S. Patent No. 3,994,599. Method and apparatus for measuring wall thickness and concentricity of tubular glass articles.
  4. U.S. Patent No. 4,312,570. High reflectivity coated mirror producing 90º phase shift.
  5. U.S. Patent No. 4,536.063. Thin film transmissive phase retarder.
  6. U.S. Patent No. 4,583,822. Quintic refractive index profile antireflection coatings.
  7. U.S. Patent No. 4,666,250. Optical coating design using flip-flop optimization.
  8. U.S. Patent No. 4,707,611. Incremental monitoring of thin films.
  9. U.S. Patent No. 4,756,602. Narrowband optical filter with partitioned cavity.
  10. U.S. Patent No. 4,778,251. Thickness error compensation for digital gradient-index optical coatings.
  11. U.S. Patent No. 4,826,267. Spectral filter with integral antireflection coating.
  12. U.S. Patent No. 4,934,788. Deposition of gradient index coatings using coevaporation with rate control.
  13. U.S. Patent No. 5,000,575. Method of fabricating gradient index optical films.
  14. U.S. Patent No. 5,100,211. Refractive index monitor for deposition of gradient-index films.
  15. U.S. Patent No. 5,144,484. Binary optic lens design using flip-flop optimization.
  16. U.S. Patent No. 5,181,143. Multiple line rugate filter with index clipping.
  17. U.S. Patent No. 5,410,431. Multi-line narrowband-pass filters.
  18. U.S. Patent No. 5,425,964. Deposition of multiple layler thin films using a broadband spectral monitor.
  19. U.S. Patent No. 5,559,640. Automotive rear view mirror system.
  20. U.S. Patent No. 5,828,489. Narrow wavelength polarizing beamsplitter.
  21. U.S. Patent No. 6,392,801. Wide-angle rugate polarizing beamsplitter.
  22. U.S. Patent No. 6,400,513. Optical beam coupling of multiple wavelengths into an output channel using spatial wavefront segmentation.
  23. U.S. Patent No. 6,885,504. Method for the design and fabrication of complementary comb optical filter pairs.
  24. U.S. Patent No. 7,164,535. Optical coating and configuration for tailored spectral characteristics over viewing angle.
  25. U.S. Patent No. 8,200,448. Optical monitor for rugate filter deposition.
  26. U.S. Patent No. 8,268,385. Optical monitor with computed compensation.