Old 07-21-2009, 12:44 PM #17
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Default Re: Help me please with my Romisen laser!!!!

i will post photos of the module tomorrow.
i will also post photos of the dot because after cleaning it again it's a bit better...


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Old 07-21-2009, 01:11 PM #18
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Default Re: Help me please with my Romisen laser!!!!

OK I am waiting for the photos
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Old 07-22-2009, 12:16 PM #19
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Default Re: Help me please with my Romisen laser!!!!

Well, now i'm sure that the problem is that there are oily spots on the len.
Using a cotton bud, the len is not perfectly clean.
Do you think that the only way to clean it is a cleaning kit???
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Old 07-22-2009, 01:13 PM #20
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Default Re: Help me please with my Romisen laser!!!!

Don't use cotton buds, they are actually pretty good at scratching lenses. If you must, buy some camera lense cleaner, that stuff is what I use on my laser scanners optics and galvo's, works great!
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Old 07-22-2009, 02:04 PM #21
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Default Re: Help me please with my Romisen laser!!!!

yes thanospetr.. it is the safe, inexpensive and only way to clean the lens and optics so that the problem does not get worse and goes away!

hope i helped.. any mre questions please feel free to ask me -Adrian
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Old 07-24-2009, 07:11 PM #22
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Default Re: Help me please with my Romisen laser!!!!

Where should i go (shop) and what should i ask for???
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Old 07-27-2009, 09:47 AM #23
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Default Re: Help me please with my Romisen laser!!!!

ebay.. local shop, computer shop.. dvd repair shop.. etc

Hope that helped!! -Adrian
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Old 07-27-2009, 10:07 AM #24
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Default Re: Help me please with my Romisen laser!!!!

where is the picture of the module??
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Old 07-27-2009, 10:21 AM #25
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Default Re: Help me please with my Romisen laser!!!!

He never uploaded one lol... I think he is really confused!
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Old 07-30-2009, 11:00 PM #26
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Default Re: Help me please with my Romisen laser!!!!

Thanks for your help guys.I managed to clean the len with a cotton bud and a lens cleaning fluid.
The problem was that the cotton bud had to be very wet not just moistened.
Thanks again and BB
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Old 07-31-2009, 02:26 AM #27
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Default Re: Help me please with my Romisen laser!!!!

No problems I am very happy that it is fixed now... told you that cleaning fluid would do the trick.. did you end up trying the cd cleaner brush? or did you just use the ear bud to finally get rid of the lines..

-Adrian
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Old 08-25-2009, 03:07 PM #28
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Default Re: Help me please with my Romisen laser!!!!

hello again.well, i got rid of the lines using the cotton bud ,but now it has a lot of scatter and no lines!!!
i am desperate
i will post pictures of the module in 10 minutes in order to see why it can't be cleaned!
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Old 08-25-2009, 03:31 PM #29
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Old 08-25-2009, 03:34 PM #30
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Default Re: Help me please with my Romisen laser!!!!

as you may see(sorry for the pictures' quality...) the len isn't totally flat!
it has a taller , round part that prevents the oily stuff from being sweeped off the len.
what can i do???
maybe should i change the len with another??? help!?!

Last edited by thanospetr; 08-25-2009 at 03:43 PM.
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Old 08-25-2009, 06:02 PM #31
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Default Re: Help me please with my Romisen laser!!!!

microfiber cloth (the one you can find for glasses is ok) and if there's grease on the lens, isopropyl alcohol (can be found in pharmacy, but is becoming very difficult to get it in small quantities, at least here)

Or you can try with ethyl alcohol, but not the commercial "denaturated" one, cause the denaturant they add it, left a bad residual ..... maybe the edible type that can be fount 95 degrees, pure, clear transparent, may work.

Or can try the fluid that is used in optics shops for lens cleaning, but i'm not sure, it depend from the fluid ..... if is the type that don't left any "protective" on the lens, maybe it work

Then for the borders of the lens, you can also use the microfiber cloth bended 2 or 3 times, in the corner it made ..... or just take a piece of thin cardboard, like a ID card, cut an angle, so you obtain a small flat part in the corner, and then use it for press the microfiber when wiping the lens ..... remembering to change the part that touch the lens each wipe or two, otherwise you just redistribute the dirt that you have take away from the lens, again on it.

Anyway, never use solvents, if you're not absolutely sure that the lens is glass, and not acrylate

Edit: also if you're sure that the lens is glass, never use acetone (ketone ?) for it, when it's on the module ..... most of the time, these lenses are glued, and it unglue them, or at least melt and spread part of the glue on the lens, making the things worse ..... and in any case, if the inside expander is HT acrylate (metacrylate), the vapors are enough for opacize it, wasting the module.
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Old 08-25-2009, 06:12 PM #32
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Default Re: Help me please with my Romisen laser!!!!

thanks, but i have tried this hundreds of times with no success...
in the end, i end up with lines crossing the dot or just grease that seems like a lot of small dots when i turn on the laser.
it only gets perfect when the len is still wet, but after it dries the residue appears...
thats why im desperate, i have tried this millions of times...
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