Theatre Appreciation Online Course Dr. Eric W. Trumbull, Professor, Theatre/Speech

Modern Lighting Instruments:

 

The Plano-Convex Lens Spotlight

http://micro.magnet.fsu.edu/primer/java/lens/p-convex1.html

http://en.wikipedia.org/wiki/Lens_%28optics%29#Types_of_lenses

http://www.daviddarling.info/encyclopedia/P/plano-convex_lens.html

http://www.optics-online.com/pxp.asp

 

The Fresnel lens spotlight

http://www.lanternroom.com/misc/freslens.htm

http://science.howstuffworks.com/question244.htm

http://www.britannica.com/eb/article-9035384/Augustin-Jean-Fresnel

http://www.bhphotovideo.com/c/product/163427-REG/Arri_530102_150W_Fresnel_220V_.html

http://www.stagelightingstore.com/s.nl/sc.25/category.153/.f

http://www.dreamstime.com/fresnellens-image1599813

 

The Ellipsoidal Reflector Spotlight

http://www.gweep.net/~prefect/pubs/iqp/node65.html

http://en.wikipedia.org/wiki/Ellipsoidal_reflector_spotlight

http://oswald.conspirators.net/lighting/ers.htm

 

Last update: November 15, 2007