phr-803t wont focus

svanheulen · Jul 1, 2008

I have my blu-ray diode mounted in a meredith glass lense and the dot gets smaller when you bring the lense in closer but it's still not focused when it's in as far as it can go. I'm only running it at about 25mA which was just enough to make it turn on. Am I running it at to low of a power or is it dead? I also just got my red diode working and it focuses when you move then lense further out... so yeah :'(

daguin · Jul 1, 2008

svanheulen said:
I have my blu-ray diode mounted in a meredith glass lense and the dot gets smaller when you bring the lense in closer but it's still not focused when it's in as far as it can go. I'm only running it at about 25mA which was just enough to make it turn on. Am I running it at to low of a power or is it dead? I also just got my red diode working and it focuses when you move then lense further out... so yeah :'(

Did you use the 5.6mm adapter? If so, did you press the diode all the way into the adapter. It needs to go farther in than just "flush" with the back surface. It needs to be pressed in until it is all the way against the front part of the adapter.

Somebody posted a picture somewhere. If I find it, I'll edit this.

Peace,
dave

[highlight]**EDIT**[/highlight] Here it is:

svanheulen · Jul 1, 2008

Yeah, I made if flush. What should I push it in with? I was hard enough to get it flush.

daguin · Jul 1, 2008

svanheulen said:
Yeah, I made if flush. What should I push it in with? I was hard enough to get it flush.

I use a modified air fitting. You just need something with an ID large enough for the pins to fit in, but with an OD under 5.6mm.

Peace,
dave

svanheulen · Jul 1, 2008

Sweet, thanks! Also, should I do the same for my red diode, or leave it flush?

daguin · Jul 1, 2008

svanheulen said:
Sweet, thanks! Also, should I do the same for my red diode, or leave it flush?

I push the red diodes up too, now, but that is just because I use the tool I modified to press diodes into an Merideth adapter. As long as it is focusing up close for you, it doesn't matter. It won't get more powerful.

Peace,
dave

TheGr8Revealing · Jul 1, 2008

that wasnt just somebody dave. :'( it t'was me!!! you dont remember???

your hippy festival loving, east coast living, poor college student, fellow LPF member!?!?

i was so honored to have helped out such a well known member round this part of town (or this part of the internet)

<--- see that plus button, its green, i know you see it....

hehe.

daguin · Jul 1, 2008

TheGr8Revealing said:
that wasnt just somebody dave. :'( it t'was me!!! you dont remember??? your hippy festival loving, east coast living, poor college student, fellow LPF member!?!?
i was so honored to have helped out such a well known member round this part of town (or this part of the internet)
<--- see that plus button, its green, i know you see it....hehe.

Sorry TheGr8evealing. Between my students, my rock & mineral lists, and these forums, I field over 200 messages a day. I often forget the details.

Your picture of the placement of the diode in a Merideth adapter saved me from throwing a VERY good laser out the window and helped me build more.

Thank you.

Now quit whining and stock up on prophylactics for the weekend.

Peace,
dave

TheGr8Revealing · Jul 1, 2008

haha i will get my stockpile moving here soon. but hey, i sent out your two acrylic lenses today.

prob could have PM'd you that. but whatever, i know you'll check every last sub forum here.

GooeyGus · Jul 1, 2008

daguin said:
Now quit whining and stock up on prophylactics for the weekend.

Peace,
dave

I had to take down one of my argon pics because of this... didn't even notice until after I posted it. I took a new picture and put it back up. ;D

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