| Author |
Message |
   
Anonymous
| | Posted on Tuesday, August 17, 2004 - 7:36 pm: |      |
hello everyone, I'm an amature rock collector and was wondering if anyone knew how to create a homemade UV source. The UV bulbs from stores are rather weak to show the flourescence effect to a large degree. |
   
Andrew
| | Posted on Wednesday, August 18, 2004 - 9:51 am: |      |
The best options that I can think of are store-bought. You could buy a fluorescent tube lamp for detecting counterfit money (they have them at radioshack), or you could buy a UV flashlight ( here is a good site) |
   
Simon Quellen Field (Sfield)
| | Posted on Wednesday, August 18, 2004 - 12:06 pm: |      |
How about using the sun? Build a cardboard box that has a diffraction grating covering a hole in the top. Arrange some flat black baffles, so that only the UV end of the spectrum gets into the box. Place the specimen in the box, hold the box at the proper angle to the sun to let only UV in, and peek at the sample through a hole in the side of the box. No batteries, fairly portable, and inexpensive. |
   
Anonymous
| | Posted on Friday, August 20, 2004 - 9:59 pm: |      |
I just bought some of the differaction gratings. Thanks for the advice about using the UV from the sun. |
   
MAX Unregistered guest Posted From: 195.29.65.87
| | Posted on Saturday, August 13, 2005 - 1:24 pm: |      |
THE BEST SOLUTION IS PRISM AND SUN LIGHT. |
   
Simon Quellen Field (Sfield)
Senior Member Username: Sfield
Post Number: 626 Registered: 12-2004
| | Posted on Sunday, August 14, 2005 - 1:04 am: |      |
Actually, diffraction gratings are cheaper, lighter, and less bulky than prisms, while performing the same function. |
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