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Kaleidoscope |
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ven:
I would like to make a kaleidoscope, about fifteen or more inches long, similar to one that I knew in my childhood. I don't mind - I expect - to spend time experimenting, but has anyone any advice on basic principles? Thanks in advance. |
russ57:
I'm sure there are heaps of instructions around, but it is basically 3 long mirrors in a triangle, usually inside a tube. A basket of some sort at one end to hold a few colourful things, an eyepiece at the other to look into. Russ |
ven:
Thanks for the reply. I have bought cheap mirrorcard ready to make a prototype. My memory of the one from childhood (during the early years of WW2) is of a triangular tube with the far end cut at an angle and a short length of one of the three sides cut back for light to fall in onto the front, viewed, side of the pretty bits. The ones I have seen so far are simpler, letting all the light in from the rear, opposite end to the eye, so the picture is not as bright as it could be. I wonder about the angle of the back end panel and whether it should also be transparent, or block the light off to enhance the light from the cut-away side piece. The angle will affect the picture, no doubt. Could a better picture be produced by a four- or five-sided tube? I will experiment and find the best design. I also would like to have not just one set of colourful bits, but a rotating 'magazine' of three or four, each giving a different type of picture eg tone, stars and planets etc. I wonder whether I should have started this! |
SwarfnStuff:
Hi Ven, The Kaleidoscopes from my 78yr old memory banks had a backlit end but the coloured bits were transparent coloured glass or plastic if this gives you any help / ideas. I think I can recall the odd one with a rotating end piece but the details are lost in the cobwebs. After a quick search for Kaleidoscope plans. Towards the bottom of this page there may be some ideas?? http://thekaleidoscopebook.com/thescopebook/scope-resources/kaleidoscope-parts-and-how-to-build-one?showall=1 John B |
ven:
Excellent: I hadn't found that site. I will read and absorb, slowly. Ted |
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