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How solar filters work

Here are some useful articles to show how solar filters work
Display # 
# Web Link Hits
1   Link   An Introduction to air-spaced Etalons
Part 1: An Introduction to Air Spaced Etalons and Solar Telescope Technology
by Colin Kaminski 		4839
2   Link   Resonant Spaces Part 2
Resonant Spaces - Part 2: An Introduction to Solid Spaced Etalons and Solar Telescope Technology
by Colin Kaminsk 		6113
3   Link   Experiment in double stacking
Bob from Cloudy Nights forum posted this on his double-stacking Coronado SM 90 experiment 		4113
4   Link   Double stacking
Here is Bob Yoesle's excellent piece on double stacking Ha front ethalon units 		4384
5   Link   Single v Double-stacking
Here is an excellent Cloudy Nights forum thread discussing the differences between single and double stacking H-alpha telescopes 		3716
6   Link   How a solar wedge works
Here are some diagrams as to how the solar wedge works 		3503
7   Link   Lunt Solar Wedge from the inside out
Here Mark Townley dismantles a Lunt Solar Wedge. 		2959
8   Link   Spectrohelioscope
Here is a CN thread on spectrohelioscopes 		3506
9   Link   Why nightime H-alpha filters do not work for white light
Here is a superb explanation as to why it is not possible to use a night time hydrogen-alpha filter for solar work by Bob Yeosle 		2942
10   Link   CaK system designs
Here is an extremely interesting thread on the CN forum showing how Cak filtration systems work. 		3459
11   Link   Optical filter construction
Here is an excellent document describing the difference between hard and soft solar filer coatings. 		2400
12   Link   Photomertic properties of commercial halpha filters
Here is an excellent paper discussing the photometric properties of commercial H alpha filters 		2228
13   Link   Analysis of F-P Ha Filters
Here is an excellent analysis of the F-P etalon by Christian Valadrich 		1808

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