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The Philippine Electronics and Technology Forum > Hardware, Resources and Projects > PCB Design (Moderator: marcelino) > UV light
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Author Topic: UV light  (Read 1305 times)
papyaTroniks
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« on: April 06, 2008, 11:31:44 AM »
Mga sir/mam, is UV light the same as dun sa mga cathode light??
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« on: April 06, 2008, 11:31:44 AM »
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rdpzycho
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« Reply #1 on: April 06, 2008, 11:44:46 AM »
yung colored light used in PC's?

I think hindi siya same as yung ginagamit sa electronics...hindi mo pwede titigan ang UV light (kaya enclosed ang mga UV EPROM erasers)...

although may slight UV siguro yun kaya merong mga UV reactive mod accessories...
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« Reply #2 on: April 11, 2008, 02:05:41 PM »
Quote from: rdpzycho on April 06, 2008, 11:44:46 AM
yung colored light used in PC's?

I think hindi siya same as yung ginagamit sa electronics...hindi mo pwede titigan ang UV light (kaya enclosed ang mga UV EPROM erasers)...

although may slight UV siguro yun kaya merong mga UV reactive mod accessories...

HOW ABOUT DIRECT SUNLIGHT?? Can we use it to exposed presentisized PCB and how long is the exposure compare to other method (flourescent, UV tube).
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deanc
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« Reply #3 on: April 12, 2008, 08:46:53 PM »
Quote from: glicos on April 11, 2008, 02:05:41 PM
HOW ABOUT DIRECT SUNLIGHT?? Can we use it to exposed presentisized PCB and how long is the exposure compare to other method (flourescent, UV tube).

Pwede sir, kaso the exposure time will be dependent on a factors such as time of the day, cloudyness, season.  Pero you can experiment by doing test exposures.
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papyaTroniks
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« Reply #4 on: July 23, 2008, 09:27:12 AM »
anu ba mga ways para maging maganda ung pag expose sa presensitized PCB? advise naman kau para maiwasan ung paulit-ulit...
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marcelino
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« Reply #5 on: July 23, 2008, 12:56:58 PM »
Quote from: papyaTroniks on July 23, 2008, 09:27:12 AM
anu ba mga ways para maging maganda ung pag expose sa presensitized PCB? advise naman kau para maiwasan ung paulit-ulit...


kung kapos ka sa budget, i suggest of using florescent nalang. si sir paranz, may post dito tungkol sa ginawa nyang box na may apat na florescent. you can also look at the thread where a step by step picture have been shown.

or buy an expensive UV lamp.

also read this thread: http://www.electronicslab.ph/forum/index.php?topic=70.0

related topic; http://www.electronicslab.ph/forum/index.php?topic=2644.0
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« Reply #6 on: July 24, 2008, 07:30:11 AM »
try nyo ung mga fake money detector bka maganda effect nun.
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