I hope I've found the right place to ask this question.... I'm creating a stage prop. The idea is to create a "cage" that has vertical bars of light (20) radiating from a platform (that I've already made).
My plan was to stick GU10 LEDs in a 55mm tube with the lens at its focal length away from the LED.
I bought some of these:
http://www.ebay.co.uk/itm/161251842...49&var=460299955897&ssPageName=STRK:MEBIDX:IT
and some planar convex lenses:
http://www.ebay.co.uk/itm/141510455935?_trksid=p2060778.m2749.l2649&ssPageName=STRK:MEBIDX:IT
and stuck it together. The results are OK, but the beam still diverges.
I improved matters by adding an occluding disk with a 10mm hole in the centre in front of the LED, but I'm still not happy with the results.
Any suggestions would be much appreciated.
Thanks, Max.
My plan was to stick GU10 LEDs in a 55mm tube with the lens at its focal length away from the LED.
I bought some of these:
http://www.ebay.co.uk/itm/161251842...49&var=460299955897&ssPageName=STRK:MEBIDX:IT
and some planar convex lenses:
http://www.ebay.co.uk/itm/141510455935?_trksid=p2060778.m2749.l2649&ssPageName=STRK:MEBIDX:IT
and stuck it together. The results are OK, but the beam still diverges.
I improved matters by adding an occluding disk with a 10mm hole in the centre in front of the LED, but I'm still not happy with the results.
Any suggestions would be much appreciated.
Thanks, Max.