3W LED That Works Well For Me..

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billbillt · #1 Post by **billbillt** » Mon Apr 27, 2015 9:23 pm

Here is a very cheap setup that works well for me in place of the mirror... It is very bright... I bought a cool white and warm white one They were less than $4 each with shipping from Ebay...

gekko · #2 Post by **gekko** » Tue Apr 28, 2015 1:34 am

Interesting, and very useful. Did you build or buy the power supply? What about the LED housing? Do you have links for the LEDs and the power supply (if bought)? Thank you for posting this!

billbillt · #3 Post by **billbillt** » Tue Apr 28, 2015 6:02 am

Hi Gekko,
Here is a link to one of them that I have:

http://www.ebay.com/itm/121136774336?_t ... EBIDX%3AIT

It comes with a heat sink and the driver.. It also has a large flange for ceiling mount that I removed to make it smaller on the diameter... All I had to do was attach a cord to plug it in the wall...

gekko · #4 Post by **gekko** » Tue Apr 28, 2015 10:05 am

Thank you: I just ordered one. I"m amazed at that price with free shipping. It looks like an excellent way of illumination for microscopes equipped with a mirror. A couple of polarizers on top of it will allow dimming it. And who would've thought to use a ceiling light for a microscope?

rnabholz · #5 Post by **rnabholz** » Tue Apr 28, 2015 1:53 pm

Nicely done! I love this kind of DIY hack

Lots of very good options for using off the shelf led products for microscopy.

I did something similar when I wanted a battery powered light source for my Spencer 33. Also an eBay product, less than $5 shipped. I added a difusser cut from a milk jug and a rubber band, and it works perfectly.

Thanks for sharing your idea

billbillt · #6 Post by **billbillt** » Tue Apr 28, 2015 4:41 pm

I like your portable set up!... I have seen these lighting assemblies at Harbor Freight... Time to get one...Also, you recycled filter material is great!.... Thanks for sharing...

billbillt · #7 Post by **billbillt** » Wed Apr 29, 2015 3:59 pm

I forgot to add, that is a fine looking old Spencer you have there...

rnabholz · #8 Post by **rnabholz** » Wed Apr 29, 2015 4:21 pm

billbillt wrote:I forgot to add, that is a fine looking old Spencer you have there...

Thanks.

She's a good machine indeed.

Rod

Dale · #9 Post by **Dale** » Mon May 04, 2015 12:31 am

Do you think this could be installed in place of the sub stage mirror on a stereoscope ?
Dale

billbillt · #10 Post by **billbillt** » Mon May 04, 2015 5:12 am

I don't see why not, if you have enough room.... It is very lightweight......

rnabholz · #11 Post by **rnabholz** » Mon May 04, 2015 2:06 pm

Not sure what you mean by "installed"?

The easiest approach would be to simply remove the mirror, and place this unit between the scope's feet pointing up. That was how the original simple electric illuminators worked.

It should work just fine, but you may need to experiment with diffusers a bit. If the space between the diffuser and the light needs to be shortened to make it fit it may require a material that creates a greater diffusion effect to prevent the image of the individual LEDs from transmitting through. Just experiment with household stuff like paper, plastics, etc. You should be able to find something that will work.

Rod

Dale · #12 Post by **Dale** » Mon May 04, 2015 2:42 pm

I sent for a light, then I bid on an AO Nichkolas illuminator, and bought a ring light.
Under exposure should not be a problem, frying maybe!
Dale

billbillt · #13 Post by **billbillt** » Mon May 04, 2015 6:05 pm

Sorry, by "installed" I meant removing the mirror.. I should have been more clear... I have used diffusers cut from plastic orange juice cartons.. You can stack as many as you need on top of it... a polarizer filter lays easily on top for crossed polar work...

Dale · #14 Post by **Dale** » Mon May 04, 2015 6:27 pm

Is the lamp the same diameter as the mirror? That would be too easy!
Dale

billbillt · #15 Post by **billbillt** » Mon May 04, 2015 6:51 pm

With the large flange removed the two that I have here measure 2 1/8" diameter....

Dale · #16 Post by **Dale** » Mon May 04, 2015 7:01 pm

Thanks. I got the same one you did, figuring fewer bulbs would give a smaller diameter. Looks like a little
fabricating will be in order.
Dale

microgreen · #17 Post by **microgreen** » Tue May 12, 2015 9:57 am

Does anyone know if a dimmer can be used for this lamp ?
Tony
East Riding of Yorkshire(UK)

Dale · #18 Post by **Dale** » Tue May 12, 2015 1:37 pm

Yes. Around $8. I did not save the link when I looked them up as I'm going to see how well
the light works. Check the reviews, the dimensions, and all the specs. I do remember one had a
metal case. My light is still weeks away so I wont be much help for awhile. Dissipating the heat
seemed to be a problem.
Dale

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3W LED That Works Well For Me..

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