LED-UV PCB exposure
Oder: high power 5w UV led with 2 years warranty
FOB Price: US $0.29 - 18 / Piece
Link: http://www.alibaba.com/product-gs/70160 ... _with.html
?????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???????? ????? ??? ?????? ???????? ???????? ???? ?????? ?????? ???? ??? ??????? ????? ...?????? ???? ??????????? ???????? ??? ??? ?????? ???? ?? ???? ??? ???????? ?????????? ?????? ???? ??? ?????? ?????? ??????? ??????? ?????? ....??? ?????? ?????? ????? ???? ???????? ??????? ???? ????? ?????? ????? .??? ??? ????? ???????? ???????? ?????????? ???? ..!
????? ?????? 1:-
Laser Printer ???? ????? ??? ?????? P.C.B ????? Mirror Image ?? ??????? ??????????? ??? ??? ????? ????? ?????? ?? ?????? ???????? ???????? ????? ??? , ?? ???? ???????? ?? ????? ??? ????? ???????? ???? ???? ?? Cooking Oil ???????? ??? ?? ?????????? ??? ???????? ?????? ..! ???? ??? ???? ????? ????? ??? ??????? ??? ??? ???? ???? ???? ?????????? ???????? ..!
??? ???????? ????? ??? ???????? ?? ????? Pre-Sensitised PCB ?? ????? ...! ?????? ??? ???? ???? ..!
???? ??? ?? ??????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???? ????????? ???? ???????? ?????? ..! ?? ?????? 15 ?? ???? ?????? ?????? ???????? ..! ?????? ??? ???? ??? ???????????? ??????? ????? ???? ????? ??????????? ..
HOW TO :-
pre-sensitised pcb positive 10-x15 single-sided
http://www.thebackshed.com/Windmill/art ... Boards.asp
?????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???????? ????? ??? ?????? ???????? ???????? ???? ?????? ?????? ???? ??? ??????? ????? ...?????? ???? ??????????? ???????? ??? ??? ?????? ???? ?? ???? ??? ???????? ?????????? ?????? ???? ??? ?????? ?????? ??????? ??????? ?????? ....??? ?????? ?????? ????? ???? ???????? ??????? ???? ????? ?????? ????? .??? ??? ????? ???????? ???????? ?????????? ???? ..!
????? ?????? 2:-
Laser Printer ???? ????? ??? ?????? P.C.B ????? Mirror Image ?? ??????? ??????????? ??? ??? ????? ????? ?????? ?? ?????? ???????? ???????? ????? ??? , ?? ???? ???????? ?? ????? ??? ????? ???????? Coconut Oil ?? Cooking Oil ???????? ??? ?? ?????????? ??? ???????? ?????? ..! ???? ??? ???? ????? ????? ??? ??????? ??? ??? ???? ???? ???? ?????????? ???????? ..!??? ???????? ????? ??? ???????? ?? ????? Pre-Sensitised PCB ?? ????? ...! ?????? ??? ???? ???? ..!
???? ??? ?? ??????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???? ????????? ???? ???????? ?????? ..! ?? ?????? 15 ?? ???? ?????? ?????? ???????? ..! ?????? ??? ???? ??? ???????????? ??????? ????? ???? ????? ??????????? ..
???????????????? ?????? ????????? ????? ??????? ..! ??? ?? ??? ????? ..! ?? ????? ???????? ???? ??? ??? ???? ????????? ??? ??? ??? ?? ???????????????? ???? ??? ????????? ??? ???????? ??????? ...?? ????? ???? ?? ..
LED-UV PCB exposure
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nwclasantha
- Posts: 75
- Joined: Wed Apr 24, 2013 12:57 am
- Location: Malabe
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SemiconductorCat
- Major
- Posts: 455
- Joined: Mon Aug 22, 2011 8:42 pm
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Re: LED-UV PCB exposure
CAUTION: be very careful with IR lights. The light entering hole in human eye is not automatically close down
to IR range lights, so your eyes are in complete exposure, and it would damage retina.
Always use IEEE recommended safety precautions. Simply they should be given when purchasing the LED's or IR
lamps of higher wattage.
When you looking at the IR light it simply only damage retina , you even not feel pain even. But damages are
very critical. I think TRONIC.LK should advertise it's health critical issues if somebody use it incorrectly[I'm weekly
using my IR SMD rework station , but follow all safety precautions].
to IR range lights, so your eyes are in complete exposure, and it would damage retina.
Always use IEEE recommended safety precautions. Simply they should be given when purchasing the LED's or IR
lamps of higher wattage.
When you looking at the IR light it simply only damage retina , you even not feel pain even. But damages are
very critical. I think TRONIC.LK should advertise it's health critical issues if somebody use it incorrectly[I'm weekly
using my IR SMD rework station , but follow all safety precautions].
Oh no. Please don't listen to these people. Yes, absolutely you can hurt your eyes looking at an IR light. And if you were looking at one, you would not know that you are looking at it since it's invisible to you.
Of course, it depends on what wavelength of IR you are talking about. The near IR (800 nm to 1400 nm) is focused on your retina just as if it were visible light. The only difference is your retina does not have receptors that detect it. If you look at a visible light that is too powerful, you will damage your eyes. If you look at a IR light in this range that is equally powerful, you will do nearly equal damage. And you do not have pain receptors on your retina to know you are burning it. Because you don't detect it, so you wont blink or look away like you would with visible light, IR light in this range is actually more dangerous than visible light. It does not matter that the photons are less energetic, since when you talk about light power, you talk about total energy and not energy per photon.
-
nwclasantha
- Posts: 75
- Joined: Wed Apr 24, 2013 12:57 am
- Location: Malabe
Re: LED-UV PCB exposure
????? ????????????:nwclasantha wrote:LED-UV PCB exposure Oder: high power 5w UV led with 2 years warranty
FOB Price: US $0.29 - 18 / Piece
Link: http://www.alibaba.com/product-gs/70160 ... _with.html
?????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???????? ????? ??? ?????? ???????? ???????? ???? ?????? ?????? ???? ??? ??????? ????? ...?????? ???? ??????????? ???????? ??? ??? ?????? ???? ?? ???? ??? ???????? ?????????? ?????? ???? ??? ?????? ?????? ??????? ??????? ?????? ....??? ?????? ?????? ????? ???? ???????? ??????? ???? ????? ?????? ????? .??? ??? ????? ???????? ???????? ?????????? ???? ..!
????? ?????? 1:-
Laser Printer ???? ????? ??? ?????? P.C.B ????? Mirror Image ?? ??????? ??????????? ??? ??? ????? ????? ?????? ?? ?????? ???????? ???????? ????? ??? , ?? ???? ???????? ?? ????? ??? ????? ???????? ???? ???? ?? Cooking Oil ???????? ??? ?? ?????????? ??? ???????? ?????? ..! ???? ??? ???? ????? ????? ??? ??????? ??? ??? ???? ???? ???? ?????????? ???????? ..!
??? ???????? ????? ??? ???????? ?? ????? Pre-Sensitised PCB ?? ????? ...! ?????? ??? ???? ???? ..!
???? ??? ?? ??????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???? ????????? ???? ???????? ?????? ..! ?? ?????? 15 ?? ???? ?????? ?????? ???????? ..! ?????? ??? ???? ??? ???????????? ??????? ????? ???? ????? ??????????? ..
HOW TO :-
pre-sensitised pcb positive 10-x15 single-sided
http://www.thebackshed.com/Windmill/art ... Boards.asp
?????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???????? ????? ??? ?????? ???????? ???????? ???? ?????? ?????? ???? ??? ??????? ????? ...?????? ???? ??????????? ???????? ??? ??? ?????? ???? ?? ???? ??? ???????? ?????????? ?????? ???? ??? ?????? ?????? ??????? ??????? ?????? ....??? ?????? ?????? ????? ???? ???????? ??????? ???? ????? ?????? ????? .??? ??? ????? ???????? ???????? ?????????? ???? ..!
????? ?????? 2:-
Laser Printer ???? ????? ??? ?????? P.C.B ????? Mirror Image ?? ??????? ??????????? ??? ??? ????? ????? ?????? ?? ?????? ???????? ???????? ????? ??? , ?? ???? ???????? ?? ????? ??? ????? ???????? Coconut Oil ?? Cooking Oil ???????? ??? ?? ?????????? ??? ???????? ?????? ..! ???? ??? ???? ????? ????? ??? ??????? ??? ??? ???? ???? ???? ?????????? ???????? ..!??? ???????? ????? ??? ???????? ?? ????? Pre-Sensitised PCB ?? ????? ...! ?????? ??? ???? ???? ..!
???? ??? ?? ??????? ????????????? 5w ???.?.??. ???? ??????? Pre-Sensitised PCB ???? ????????? ???? ???????? ?????? ..! ?? ?????? 15 ?? ???? ?????? ?????? ???????? ..! ?????? ??? ???? ??? ???????????? ??????? ????? ???? ????? ??????????? ..
???????????????? ?????? ????????? ????? ??????? ..! ??? ?? ??? ????? ..! ?? ????? ???????? ???? ??? ??? ???? ????????? ??? ??? ??? ?? ???????????????? ???? ??? ????????? ??? ???????? ??????? ...?? ????? ???? ?? ..
?????? ?? ???? ???? ???? ????? ????? ?? ????? ???? ?? ?????. ??? ??????????? ?? ??? ?? ???? ??? ?? ???????? ??? ????? ?????? .... ???? ?????? ????? ??? ??? ?? ??????? ?? ????????? ????? ... ???? ??? ??? ???? ??? ?? ????? ???? ???? ????? ??????? ????????? ...?? ???? ????? ???????...!! ??????? ??? ?????? ????? ? ???? ??? ???????? ??? ??? ?????.
Special Note:
Please make sure to protect yours eyes form UV rays which is penetrating form LED accordingly. therefore it is very safety to make a Shielded Cover & put this unit inside it while it's operating condition as soon as possible .
Finally Once you have done the certain exposing process, it will be the time to turn of the power to verify the PCB whether it either exposed or not .
TC
a) ??? ????? ???????? ????? ?????? ????? ???? ?? ??????? ???? ?????? ??????? ??????? ????? ..
b) ??????? UV Exposed ???? ? ?????? ???? ???? ???? ???????? ?????? ???????? ...??? Exposed ????? ??? ????? ??????(???? ????? ???? ????? ????? ???) ???? ???? ???????? ??????? ???? ?????????? ...???? ????? ???? ?? ?????..???? ?????? ??? ????? ???????? ??? ??? ?????? ..???? ?????? ???????? ?? ?????????? ???? ?????? ????? ?????? ??? ?????? ???? (?? ???? ???????? 21 ???? ?????????? ??? ?????? ?? ?????? ???? ??? ...????? ???? ????)
?? ????? ????? ??????? ..
c) ????? ?????????? ??????? ????? ??? ?????? ??? ??????? ????????? ??????????? ?????? ??? ????? .
?? ???? ??? ?????? ??? ?? :Other REF: www.youtube.com/watch?v=p2kFazl-aEE
???????? 21 ??????? Chemical ?? ????? ??? ???? ????? ?????? ?????? ???? ???????? ??????? kinsten speical developer for presensitized pcbs
????? ???? ???????? :
Other REF Part1: www.youtube.com/watch?v=VkQroiEJBMs
Other REF Part2: www.youtube.com/watch?v=zyVB-43d9hw
Other REF Part 3: www.youtube.com/watch?v=dXwRamOBB8M
Other REF Part 4: www.youtube.com/watch?v=KU_gtZmEgMM
???? ???? ???? ???????????? ????????? ???? ??? ?????? ??????? ??????? ??????? 5 ???? ???? ??????, ? ?? ??????? ?? ??? ???? ??? ?????? ?? ?????
???????? ?????? ???? ???????? ???? ??? ?? ???????? ??? ???? ?????? ??? / ?? ?????? ???? ?? ??????? ?????? ???? ?????? ??? ??????? ?? ???? ??? ?? ???? ??????. ???? ????? ?????? ?????? ???????.
uv-curable solder mask repairing paint green
100% Brand New
- Color : Green
- Viscosity : 25 ? 200 ± 50 ps
- Adhesion : 100/100
- Hardness : > 5H
- Heat resistance : 260 ± 5 ? 10 seconds 3 times
- Insulation resistance : > 1×1013
- Dielectric strength : > 500 V/mil
- Notice: Don’t dilute when using the ink . You need to fully stir well before using it?
This paint is used to protect PCB traces from corrosion, moisture.It is also used for repairing PCB after soldering, rework.
Usage :
- Apply paint on your PCB
- Spread it on the PCB with covering the transparent mask film
- Expose it under UV light ( or sun ) for a few minutes
- Wash away the extra paint by gasoline or oil base solvent