ROBOT.LK

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 wrote:LED-UV PCB exposure

555839_10200210225771156_467277680_n.jpg

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 ?? ???? ?????? ?????? ???????? ..! ?????? ??? ???? ??? ???????????? ??????? ????? ???? ????? ??????????? ..

???????????????? ?????? ????????? ????? ??????? ..! ??? ?? ??? ????? ..! ?? ????? ???????? ???? ??? ??? ???? ????????? ??? ??? ??? ?? ???????????????? ???? ??? ????????? ??? ???????? ??????? ...?? ????? ???? ?? ..