yeletah Posted January 19, 2009 Share Posted January 19, 2009 If I have a 50 degree profile and a hanging position of 6 metres, how do I work out how wide the beam will be on the floor if it's pointing straight down? Is there a standard equation for calculating this? Link to comment Share on other sites More sharing options...
Tom Baldwin Posted January 19, 2009 Share Posted January 19, 2009 Here, including a cheat sheet. Link to comment Share on other sites More sharing options...
yeletah Posted January 19, 2009 Author Share Posted January 19, 2009 Here, including a cheat sheet. Great! Thanks Link to comment Share on other sites More sharing options...
Paul J Need Posted January 20, 2009 Share Posted January 20, 2009 Gosh what a great shame Tom you just handed over a cheat sheet when this was a superb opportunity to help Veletah do the maths and have those methodolgy available for the next time :) Standard equation would have involved a ruler (scale rule would have been best), a angle measuring device and a link how to work out both the Base angle (B/A) and field angle (F/A) ?! ( although most manufacturers use the F/A figure) Link to comment Share on other sites More sharing options...
Shez Posted January 20, 2009 Share Posted January 20, 2009 Standard equation would have involved a ruler (scale rule would have been best), a angle measuring device and a link how to work out both the Base angle (B/A) and field angle (F/A) ?! ( although most manufacturers use the F/A figure) Or a calculator with a tan function. Lantern angles are one of the few real world uses I have for trig. But then I like maths ;) Link to comment Share on other sites More sharing options...
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