Laser pointer discussion. Read/write reviews of laser pointers and laser pointer companies. Learn about all types of laser pointers and lasers





Welcome to Laser Pointer Forums! If you are looking for a laser pointer or want to compare different laser pointer companies, you may want to check out the LPF Laser Pointer Company Database. The link will open in a new window for your convenience.








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes
Laser Technology Laser Pointer Parts Lasers by Wavelength
Top 10 Laser Pointer Companies Laser Pointer Company Database Visible Beam Laser Pointers


One laser store meets all your needs

























Go Back   Laser Pointer Forums - Discuss Laser Pointers > Lasers > Experiments & Modifications



LPF List of Laser Pointer Companies (link opens new window)



Reply
 
LinkBack Thread Tools Display Modes
Old 07-14-2007, 02:56 PM #1
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
chimo chimo is offline
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
Default Inside a DX 30mW Green (link)

Here's a link to a thread I just started on CPF. *I had to open up my Dx 30mW green. *

http://www.candlepowerforums.com/vb/...06#post2080606 *

(remove spaces)

Paul

LPF is still giving me problems posting links and pics.

***fixed link***

You will be able to post links directly after 20 posts...


chimo is offline   Reply With Quote







LPF List of Laser Pointer Companies (link opens new window)







Old 07-14-2007, 03:55 PM #2
kingzilla
Guest
 
Posts: n/a
kingzilla
Guest
 
Posts: n/a
Default Re: Inside a DX 30mW Green (link)

Hey, you live in Ottawa, Canada too! I just saw that on your CPF profile. Sorry for the threadjack just wanted to say, thats pretty cool there are other laser enthusiasts here.
  Reply With Quote
Old 07-14-2007, 04:49 PM #3
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
chimo chimo is offline
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
Default Re: Inside a DX 30mW Green (link)

That it is good to see another member from Ottawa. And, with this post, posting pics and links should be now OK! Cheers,

Paul

Quote:
Originally Posted by Sawt al Hurriyah
Hey, you live in Ottawa, Canada too! I just saw that on your CPF profile. Sorry for the threadjack just wanted to say, thats pretty cool there are other laser enthusiasts here.
chimo is offline   Reply With Quote
Old 07-14-2007, 04:51 PM #4
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
chimo chimo is offline
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
Default Re: Inside a DX 30mW Green (link)

Curiosity go the better of me. *Took my green 30mW Laser apart. *Here are a couple of pics of the board. *(This is the same post as from CPF)

DX 30 Mw Green Pot side


DX 30 Mw Green Switch side


Front of module


Inside Front Cap


The board has a couple of Zetex transistors to drive the LD, a dual Op Amp, a LM431 for voltage reference, and several passive components (resistor dividers, pot, caps).

I doubt this board would ever stay in "regulation" with 2x NiMH batteries. *The LM431 is a shunt regulator configured for 2.5V and NiMH batteries would not provide enough voltage. *I haven't done a full schematic of this yet.

Paul
chimo is offline   Reply With Quote
Old 07-14-2007, 07:10 PM #5
Class 2M Laser
 
Join Date: Dec 2006
Location: vancouver
Posts: 945
Rep Power: 27
me_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud of
me_too_lazy me_too_lazy is offline
Class 2M Laser
 
Join Date: Dec 2006
Location: vancouver
Posts: 945
Rep Power: 27
me_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud ofme_too_lazy has much to be proud of
Default Re: Inside a DX 30mW Green (link)

did you find an IR filter in there?
me_too_lazy is offline   Reply With Quote
Old 07-14-2007, 07:27 PM #6
SenKat
Guest
 
Posts: n/a
SenKat
Guest
 
Posts: n/a
Default Re: Inside a DX 30mW Green (link)

On the MAJORITY of the DX (NewWish) lasers, the IR filter is right on the emmission side of the MCA. I have seen them on the outside of the final collimating lense, but rarely. Most of hte time, unles you completely dissassemble them you wil not see the IR filter - but I can assure you that it DOES in fact exist :-)
  Reply With Quote
Old 07-14-2007, 08:52 PM #7
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
chimo chimo is offline
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
Default Re: Inside a DX 30mW Green (link)

Quote:
Originally Posted by me_too_lazy
did you find an IR filter in there?
I have not opened up the module, but it is not on the outside.

I have to do some more circuit analysis, but I am going to see if it will tolerate a 10440 Li-ion and a spacer. It's a matter of:

1. can the components can handle the voltage and still work within design parameters
2. will the feedback design limit the current to the LD
chimo is offline   Reply With Quote
Old 07-14-2007, 10:20 PM #8
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
chimo chimo is offline
Class 2M Laser
 
Join Date: Jun 2007
Posts: 650
Rep Power: 16
chimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the roughchimo is a jewel in the rough
Default Re: Inside a DX 30mW Green (link)

Oh ya, this laser will light a match (sharpied) using a focusing lens. *Should a 30mW laser be able to do that?

By the way, I tried this with just the lens and with the lens and a seperate IR filter I pulled from an old video camera. The match lit up both with and without the IR filter.

Paul
chimo is offline   Reply With Quote
Old 07-14-2007, 11:15 PM #9
SenKat
Guest
 
Posts: n/a
SenKat
Guest
 
Posts: n/a
Default Re: Inside a DX 30mW Green (link)

Ya - just about any power of laser will light stuff with a lense....I have even heard of 5mw lasers being able to do so with an external lense !
  Reply With Quote
Old 07-15-2007, 02:57 AM #10
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 1100
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Things Things is offline
Class 4 Laser
 
Join Date: May 2007
Location: Queensland, AU
Posts: 7,549
Rep Power: 1100
Things has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond reputeThings has a reputation beyond repute
Default Re: Inside a DX 30mW Green (link)

my 30 can't light anything for some reason?????? :'( so is the ir fliter embedded in the laser somewhere, not where you can see it? :-?
Things is offline   Reply With Quote
Old 07-17-2007, 05:50 AM #11
Member
 
Join Date: Jul 2007
Posts: 36
Rep Power: 0
Revolvr is on a distinguished road
Revolvr Revolvr is offline
Member
 
Join Date: Jul 2007
Posts: 36
Rep Power: 0
Revolvr is on a distinguished road
Default Re: Inside a DX 30mW Green (link)

Chimo,

Let us know when you get the circuit schematic reverse engineered. I am interested in it. My DX 50 probably has the same circuit. Mine seems to have variations in the output like an underdamped circuit. I'm curious why and if it can be tweaked.

-- Rev
Revolvr is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On











Loading








Green Laser Pointers by Category Blue Laser Pointers by Category Red Laser Pointers by Category
Yellow Laser Pointers by Category Violet Laser Pointers by Category Orange Laser Pointers by Category
Top Laser Pointers by Power - 1 Watt+ Top Laser Pointers by Power - 500mW+ Top Laser Pointers by Power - 250mW+
Laser Pointer Database High Power Laser Pointers Laser Pointer Diodes






Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 06:50 AM.


Powered by: vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC