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 > Tutorials, Help & Repairs



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



Reply
 
LinkBack Thread Tools Display Modes
Old 08-31-2013, 02:46 PM #1
Class 1M Laser
 
Join Date: Apr 2011
Posts: 100
Rep Power: 7
superh90x is on a distinguished road
superh90x superh90x is offline
Class 1M Laser
 
Join Date: Apr 2011
Posts: 100
Rep Power: 7
superh90x is on a distinguished road
Default laser diode pin identifying help?

I'm about to get my diodes by mail today, and then I will make my first build, but how do I know which pin is positive/negative? Its a red diode


superh90x is offline   Reply With Quote







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







Old 08-31-2013, 07:29 PM #2
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: laser diode pin identifying help?

If you point the triangle of the pins upwards, the one of the left is the positive pin. Depending on which diode you are getting, either the pin on the top will be negative or the pin on the right will be negative.
Wolfman29 is offline   Reply With Quote
Old 08-31-2013, 10:00 PM #3
Pi R Squared's Avatar
Class 3B Laser
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 3794
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Pi R Squared Pi R Squared is offline
Class 3B Laser
Pi R Squared's Avatar
 
Join Date: May 2013
Location: Snohomish County Washington, US
Posts: 3,798
Rep Power: 3794
Pi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond reputePi R Squared has a reputation beyond repute
Default Re: laser diode pin identifying help?

You need to be specific, what red diode? They aren't all the same. Also be aware that some are case negative.
__________________
Keychain 650nm <5mW
Quartet 4-in-1 630-680nm <1mW

AtlasNova 635nm <5mW
MillionAccessories 532nm <5mW broken
M462 462nm one of a kind (in progress)
PLTB450B 450nm 1913mW G2 lens
PL520 520nm 82mW acrylic lens
S06J 12X 405nm 590mW G2 lens
C6 M140 445nm 1.5W 3 element lens
9mm 445nm with G2 lens in a stainless steel host
Radiant Electronics X4 3.7W Laser Power Meter


Everyone please post here: Countries of LPF. Where are you? <link>
___________________________________________
The light that shines twice as bright burns half as long.
Pi R Squared is offline   Reply With Quote
Old 08-31-2013, 10:10 PM #4
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: laser diode pin identifying help?

I suspect it's an LPC-815, LPC-825 or LPC-826. But if it's none of those, don't take my advice.
Wolfman29 is offline   Reply With Quote
Old 09-01-2013, 04:03 AM #5
Class 1M Laser
 
Join Date: Apr 2011
Posts: 100
Rep Power: 7
superh90x is on a distinguished road
superh90x superh90x is offline
Class 1M Laser
 
Join Date: Apr 2011
Posts: 100
Rep Power: 7
superh90x is on a distinguished road
Default Re: laser diode pin identifying help?

it is a Mitsubishi ML101U29-25
I took your advice, it worked, but it cant burn anything, i'm running it at 340 mA, could that be why?
superh90x is offline   Reply With Quote
Old 09-01-2013, 04:13 AM #6
Wolfman29's Avatar
Class 3B Laser
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Wolfman29 Wolfman29 is offline
Class 3B Laser
Wolfman29's Avatar
 
Join Date: Jan 2011
Location: Davis, CA
Posts: 3,828
Rep Power: 227
Wolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond reputeWolfman29 has a reputation beyond repute
Default Re: laser diode pin identifying help?

Do you have a lens?
Wolfman29 is offline   Reply With Quote
Old 09-01-2013, 04:29 AM #7
Class 1M Laser
 
Join Date: Apr 2011
Posts: 100
Rep Power: 7
superh90x is on a distinguished road
superh90x superh90x is offline
Class 1M Laser
 
Join Date: Apr 2011
Posts: 100
Rep Power: 7
superh90x is on a distinguished road
Default Re: laser diode pin identifying help?

yes I do, I just neglected to realize my shakiness and haste, I think I expected too much from a 250mw red. it makes marks in a cd case, i'll do the match test in the morning
superh90x 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 01:02 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