[Swansea Hackspace] LED diffuser

[Ceri Clatworthy]

Hope you have a good PSU or driver circuit.

And possibly a heat-sink !!!

Ceri

On Mon, Nov 17, 2014 at 5:32 PM, Tim Moore <timmoore47 at gmail.com> wrote:

> Many thanks Ceri, I've ordered one and I'll see what I can get out of it
> !  Price is brilliant !
>
> :  ))))
>
> Tim
>
> On 17 November 2014 17:16, Ceri Clatworthy <ceri.clatworthy at gmail.com>
> wrote:
>
>>
>> http://www.banggood.com/5W-Round-COB-LED-Bead-Chips-For-Down-Light-Ceiling-Lamp-DC-15-17V-p-919789.html
>>
>> On Sun, Nov 16, 2014 at 6:12 PM, Tim Moore <timmoore47 at gmail.com> wrote:
>>
>>> Off Topic
>>>
>>> I'm try to get some 12v 10W cob white light led chips but all I can find
>>> is the round ones from RS.   Anybody know of a source for the square ones ?
>>>
>>> :  )
>>>
>>> Tim_1
>>>
>>> On 10 November 2014 15:35, Graham Owens <grahamowensuk at googlemail.com>
>>> wrote:
>>>
>>>> Hi Jon,  thanks for that, just done some searching, and it seems to be
>>>> a hotly debated topic which is best for table tennis, almost as bad as the
>>>> pic/avr debate lol.
>>>>
>>>> I have found a couple of 'club' balls (plastic) as opposed to 'match'
>>>> balls (cellulose)- i will do some *destructive testing* ;) tomorrow night
>>>> to see how prone they are to catch on fire.
>>>>
>>>> I have to admit, i love how uniform the light is from them :)
>>>>
>>>> Will add some pictures to the site.
>>>>
>>>> Best Regards
>>>>
>>>> Graham
>>>>
>>>> On 10 Nov 2014, at 10:15, jon lilley <jon.j.lilley at gmail.com> wrote:
>>>>
>>>> You could use "practice" ping-pong balls.
>>>> 10 for 99p from China, and they're not made of celluloid, so they're
>>>> not prone to bursting into flame. :)
>>>>
>>>> J
>>>> On 9 Nov 2014 22:16, "Graham Owens" <grahamowensuk at googlemail.com>
>>>> wrote:
>>>>
>>>>> Gah, the ping pong's give exactly the look I wanted but I don't want
>>>>> to cause a fire hazard, and the triangles look really cool, are safe but
>>>>> are pretty hard to make. (in comparison to sticking a pingpong over an led)
>>>>>
>>>>> Think I will have to keep looking.
>>>>> ------------------------------
>>>>> From: Gerrit Niezen <gerrit.niezen at gmail.com>
>>>>> Sent: ‎09/‎11/‎2014 21:37
>>>>> To: Swansea Hackspace <hackspace at swansea.hackspace.org.uk>
>>>>> Subject: Re: [Swansea Hackspace] LED diffuser
>>>>>
>>>>> This LED triangle creates a beautiful even diffusion using acrylic and
>>>>> a painted cavity:
>>>>> http://www.instructables.com/id/Making-a-great-LED-triangle/ (laser
>>>>> cutter required)
>>>>>
>>>>> With regards to ping pong balls - keep in mind that they’re very
>>>>> flammable:
>>>>>
>>>>> http://dangerousprototypes.com/2012/06/08/warning-ping-pong-balls-are-very-flammable/
>>>>>
>>>>>
>>>>> On 9 Nov 2014, at 20:18, Graham Owens <grahamowensuk at googlemail.com>
>>>>> wrote:
>>>>>
>>>>> It was me,
>>>>>
>>>>> and i have to say they look pretty awesome, very much what i was
>>>>> looking for.
>>>>>
>>>>> Today i have mostly been doing a teach the wife arduino day, and we
>>>>> have come up the a colour changing, temperature sensing pteranodon that
>>>>> flaps its wings when it detects motion.
>>>>>
>>>>> pictures and a video to follow :)
>>>>>
>>>>> On 9 November 2014 20:06, Justin Mitchell <justin at discordia.org.uk>
>>>>> wrote:
>>>>>
>>>>>> Someone was asking about good diffusers for an LED the other day?
>>>>>>
>>>>>> Just seen this article using ping pong balls, looks pretty good.
>>>>>>
>>>>>> https://plus.google.com/u/0/101411395547219906775/posts/fJvzXwBzi4m
>>>>>>
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>>>>>>
>>>>>
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>>>>>
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>>
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>
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