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Old 11-28-2008, 04:45 PM #1
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Default PocketPal Focusing Issue

Finally got my PocketPal together and all working but I have a issue focusing it.

I have the metal focusing ring on the top of the optics but I cant focus it enough because it needs to go down furthur into the heat sink... Trouble is it doesnt go far enough in there...

I have removed the metal part and just have the spring and plastic housing but it doesnt really look the part.

Im not sure if this topic should go in tutorials or optics but what the hey.



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Old 11-28-2008, 05:45 PM #2
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Default Re: PocketPal Focusing Issue

how far away are you trying to focus it? if it is like a mile away...then that might be your problem...also did you cut away the plastic thing on the inside of the lense? It starts as a little hole but if you make it bigger it will let more light out and that might help you
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Old 11-28-2008, 06:31 PM #3
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Default Re: PocketPal Focusing Issue

You can't focus BRs properly with the metal focusing ring on it, you need to have it removed.

-Adam
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Old 11-28-2008, 08:03 PM #4
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Default Re: PocketPal Focusing Issue

Quote:
Originally Posted by The_Muffin_Man
how far away are you trying to focus it? if it is like a mile away...then that might be your problem...also did you cut away the plastic thing on the inside of the lense? It starts as a little hole but if you make it bigger it will let more light out and that might help you
About 3 meters away and no, does that really make a difference?

Quote:
You can't focus BRs properly with the metal focusing ring on it, you need to have it removed.

-Adam
Sorry, should have said. I have a open can red in there.
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Old 11-28-2008, 08:15 PM #5
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Default Re: PocketPal Focusing Issue

This is an indication that the diode is not pressed all the way into the module (or the lens is damaged). *Try it with a different lens first. *If that doesn't work, look at the back of the module. *The diode should be recessed into the module. *It should NOT be flush or sticking up at all.

Peace,
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**EDIT** *this is for the Merideth, but the idea is the same. *The diode needs to be below the surface of the module

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Old 11-28-2008, 08:46 PM #6
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Default Re: PocketPal Focusing Issue

Quote:
Originally Posted by daguin
This is an indication that the diode is not pressed all the way into the module (or the lens is damaged). *Try it with a different lens first. *If that doesn't work, look at the back of the module. *The diode should be recessed into the module. *It should NOT be flush or sticking up at all.

Peace,
dave


**EDIT** *this is for the Merideth, but the idea is the same. *The diode needs to be below the surface of the module

Its the same with different optics and its in the module perfectly.

If I remove the metal cap so I only have the plastic lens holder part I can focus it well, it goes inside the heat sink far enough. I am thinking perhaps if I try and get the module to come further forward towards the end of the heat sink.

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Old 11-28-2008, 09:29 PM #7
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Default Re: PocketPal Focusing Issue

Quote:
Originally Posted by lamborgini8
Its the same with different optics and its in the module perfectly.
If I remove the metal cap so I only have the plastic lens holder part I can focus it well, it goes inside the heat sink far enough. I am thinking perhaps if I try and get the module to come further forward towards the end of the heat sink.
Ahhh! That would explain it as well. The result is the same, the lens is too far from the diode. The module MUST be at least flush with the surface of the heat sink in order to be able to screw the lens in far enough. The lens has to screw into the module. If the module is below the surface of the heat sink, the heat sink will prevent the lens from screwing in far enough easily. Move the module farther forward (until the front of the module is at least flush with the surface of the heat sink). That should do it

Peace,
dave
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Old 11-28-2008, 09:41 PM #8
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Default Re: PocketPal Focusing Issue

Quote:
Originally Posted by daguin
[quote author=lamborgini8 link=1227894348/0#5 date=1227908774]
Its the same with different optics and its in the module perfectly.
If I remove the metal cap so I only have the plastic lens holder part I can focus it well, it goes inside the heat sink far enough. I am thinking perhaps if I try and get the module to come further forward towards the end of the heat sink.
Ahhh! *That would explain it as well. *The result is the same, the lens is too far from the diode. *The module MUST be at least flush with the surface of the heat sink in order to be able to screw the lens in far enough. *The lens has to screw into the module. *If the module is below the surface of the heat sink, the heat sink will prevent the lens from screwing in far enough easily. *Move the module farther forward (until the front of the module is at least flush with the surface of the heat sink). *That should do it

Peace,
dave[/quote]

Makes sence, come to think of it I did push it back while at work for some reason and don't remember putting it back.
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