Search found 38 matches

by Steven
Thu Sep 03, 2015 10:36 am
Forum: Beginning Holography
Topic: DIY simple interferometer question
Replies: 6
Views: 4363

Re: DIY simple interferometer question

The critical parameters when trying to use a cheap laser diode for holography is current and temperature stability. Some cheap laser diodes are totally unsuitable for holography, see links below. http://hololaser.kwaoo.me/ http://hololaser.kwaoo.me/laser/modeanalysis.html When starting out, keep it ...
by Steven
Sat Jul 04, 2015 3:32 pm
Forum: Off Topic
Topic: ISDH 2015 Video Recording ?
Replies: 2
Views: 2948

Re: ISDH 2015 Video Recording ?

I'm also hoping that video recordings will be available to watch soon.

Steven.
by Steven
Thu Mar 19, 2015 10:29 am
Forum: DCG
Topic: Glass Cleaning
Replies: 12
Views: 7312

Re: Glass Cleaning

Yes true, Acetone I believe has less residue Say one last thing Steven, do you strip used film in a particular way? I've tried pure bleach or sometimes 10% Muriatic Acid with OK results. But sure would like a better method. Thanks again Tony Hi Tony, I just use a weak solution of hot caustic soda. ...
by Steven
Sat Mar 14, 2015 3:12 am
Forum: DCG
Topic: Glass Cleaning
Replies: 12
Views: 7312

Re: Glass Cleaning

Tony DCG wrote:Thanks again for sharing Steven,

I some times use Methanol and Kim Wipes is there is some pit that will not be removed by air. Methanol does not leave much of a residue and evaporates very quickly.

Look forward to chatting some more!!

Tony
I find that acetone is very effective.

Steven.
by Steven
Thu Mar 12, 2015 10:00 pm
Forum: DCG
Topic: Glass Cleaning
Replies: 12
Views: 7312

Re: Glass Cleaning

Many thanks Steven great read. You are welcome Tony, "I use Dawn soap when first washing glass I believe it has low amounts of sodium hydroxide" Probably, but they don't list it in the msds: http://whatsinproducts.com//brands/show_msds/1/7115 I use Fairy washing up liquid. It's also made ...
by Steven
Wed Mar 11, 2015 10:00 pm
Forum: DCG
Topic: Glass Cleaning
Replies: 12
Views: 7312

Re: Glass Cleaning

Tony DCG wrote: Does it scratch the glass?

Thanks again
Tony
I have not noticed any scratches on the glass using my method.

Steven.
by Steven
Wed Mar 11, 2015 9:57 pm
Forum: DCG
Topic: Glass Cleaning
Replies: 12
Views: 7312

Re: Glass Cleaning

I now use a caustic soda scrub and a hydrochloric acid soak. Hi Steven Can you expand on this? Thanks again Tony Hi Tony, My long, tedious method for what's it worth: I scrub both surfaces of the glass with a concentrated solution of sodium hydroxide using a non-scratch scouring pad, the ones that ...
by Steven
Tue Mar 03, 2015 12:32 pm
Forum: DCG
Topic: Glass Cleaning
Replies: 12
Views: 7312

Re: Glass Cleaning

Hi tony, I have never seen this on my glass, which is just picture framing glass. I have not had a great deal of success using bleach/TSP. I now use a caustic soda scrub and a hydrochloric acid soak. I wonder if you have a bad batch of glass, surface contaminated with silicone or something? Ed, yes ...