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 06-06-2011, 08:04 AM #337
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: DIY Thermal LPM for under $50

In fact, I actually did clean it a while back. That was a photo from the before part of the cleaning process. Here is the current state of the diode (there is still an artifact, but it's actually not that bad).



EDIT: And that artifact looks a lot less... mangled... in person than it does in the picture.



Last edited by Wolfman29; 06-06-2011 at 08:08 AM.
Wolfman29 is offline   Reply With Quote







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







Old 06-06-2011, 08:07 AM #338
lazeerer's Avatar
Class 3B Laser
 
Join Date: May 2010
Location: CT
Posts: 3,664
Rep Power: 782
lazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond repute
lazeerer lazeerer is offline
Class 3B Laser
lazeerer's Avatar
 
Join Date: May 2010
Location: CT
Posts: 3,664
Rep Power: 782
lazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond reputelazeerer has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

I could not pull that off.

You must of caught it right away. But i still think that could be why your diode is not putting out as much.
__________________


405nm 1013mW In Cree Z5 , 850mW LaserGLow Electra Mod , 583mW C3 BDR
445nm 3.6W Monster Freak TEC 9mm, 3.1W Fat Boy Build , 2.9W Big Stainless , 2.7W Big Black, 2W Arctic G2 , 1.8W C13
473nm 178mW CNI-PGL-III-C , 56mW CNI-PGL-III-C
488nm 52mW OPSL SAPPHIRE 488-50, 59mW SS Melles Griot BCD-50&BCD-25 35mW
515nm 83mW Direct Green Diode Fully Custom Host
532nm 617mW RPL Style , 213mW CNI-PGL-III-A , 120mW DIY SS C3
589nm 130mW CNI-PGL-III-A
594nm 13mW CNI-PGL-III-C
632nm 4mW HeNe
635nm 1130mW Fenix TK35 ML501P73 , 918mW Small Sun ZY ML520G71
650nm 1056mW Polished CNI-PGL-C Mod, 5W Custom Build Red Devil
658nm 430mW LOC 826 Brinyte A20 , LCC 390mW C3 3 mode
660nm 500mW SS LQ ignis
671nm 800mW PowerModulem, 9mW Black Pen
685nm 44mW MXDL 2x AAA Pen, 41mW, 130mW Stainless Shadow
780nm 127mW Pen
808nm 758mW Fire Dragon From DJNY
LPM's 2W/5W Ophir
SPECTROMETER - 390nm to 980nm



All My Reviews, Tips & Mods Are Here Now: >Reviews<


Check Out My YouTube Video's Here:
http://www.youtube.com/user/Lazereer
lazeerer is offline   Reply With Quote
Old 06-06-2011, 08:09 AM #339
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: DIY Thermal LPM for under $50

Hmm. And is it just me or are there less "lines" in that photo than there are in the previous one?
Wolfman29 is offline   Reply With Quote
Old 06-06-2011, 12:29 PM #340
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

Yeah... and one of the photos is upside down...
Maybe it is just out of focus....
If not there are some emitters that are no longer emitting...


Jerry

You can contact us at any time on our Website: J.BAUER Electronics
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 07-01-2012 at 12:19 PM. Reason: Spelling errors
lasersbee is offline   Reply With Quote
Old 07-01-2011, 02:50 AM #341
Class 1M Laser
 
Join Date: Apr 2011
Location: A random place in north dakota.
Posts: 213
Rep Power: 20
random person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud of
random person random person is offline
Class 1M Laser
 
Join Date: Apr 2011
Location: A random place in north dakota.
Posts: 213
Rep Power: 20
random person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud of
Default Re: DIY Thermal LPM for under $50

It took me a sec to decipher your guys circuit diagram. Finally redrew it. Might already be a simple version like this somewhere. Anyhow, thats a super cool way of applying offset with a single supply. Never thought of that before. Not sure I see the point of 100nf cap though. No reason to put a bypass cap on a sensory input. However, I would highly recommend adding a low frequency RC filter onto that input to reduce the noise.

__________________


random person is offline   Reply With Quote
Old 07-01-2011, 01:32 PM #342
Class 1 Laser
 
Join Date: Apr 2009
Posts: 61
Rep Power: 9
swatmugga is on a distinguished road
swatmugga swatmugga is offline
Class 1 Laser
 
Join Date: Apr 2009
Posts: 61
Rep Power: 9
swatmugga is on a distinguished road
Default Re: DIY Thermal LPM for under $50

could you tell me where you bought the parts of the Project ?
swatmugga is offline   Reply With Quote
Old 07-01-2011, 01:39 PM #343
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

Quote:
Originally Posted by random person View Post
It took me a sec to decipher your guys circuit diagram. Finally redrew it. Might already be a simple version like this somewhere. Anyhow, thats a super cool way of applying offset with a single supply. Never thought of that before. Not sure I see the point of 100nf cap though. No reason to put a bypass cap on a sensory input. However, I would highly recommend adding a low frequency RC filter onto that input to reduce the noise.

The cap is to reduce the input noise if the sensor is far
from the amplifier or the wire used between the Sensor
and amplifier is not properly shielded...

The only problem with the Offset control is that it can not
go below 0vdc which is required when the heatsink of the
sensor starts to get warm from repeated Laser tests on the
sensor side.. Which is the problem with the Alpha LPM..


Jerry

You can contact us at any time on our Website: J.BAUER Electronics
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 07-01-2012 at 12:19 PM.
lasersbee is offline   Reply With Quote
Old 07-01-2011, 04:12 PM #344
qumefox's Avatar
Class 3B Laser
 
Join Date: Mar 2010
Location: Jackson, TN
Posts: 3,234
Rep Power: 173
qumefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond repute
qumefox qumefox is offline
Class 3B Laser
qumefox's Avatar
 
Join Date: Mar 2010
Location: Jackson, TN
Posts: 3,234
Rep Power: 173
qumefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

The solution for this is to use a negative voltage dc-dc converter and actually use dual rails.. This doesn't incur much extra cost since your not dealing with a lot of current, and low power monolithic -V sources are cheap. Though going that route, you can do away with the whole bias adjustment section on the the negative output side, and use an opamp that has a bias adjustment pin like a 741.
__________________
Wavelengths in 'The Collection'
685nm, 655nm, 635nm, 589nm, 532nm, 473nm, 445nm, 405nm
qumefox is offline   Reply With Quote
Old 07-01-2011, 05:09 PM #345
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

I agree that it would solve the Zero problem...

But you need to be careful using DC/DC converters since
the inexpensive ones tend to produce quite a bit if ripple..
Good filtering would be a must..

We saw that with all the problems with the Kenometer
Lites and other similar built LPMs that used the OPHIR
heads and DC/DC poorly filtered converters...


Jerry

You can contact us at any time on our Website: J.BAUER Electronics
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 07-01-2012 at 12:19 PM.
lasersbee is offline   Reply With Quote
Old 07-01-2011, 05:29 PM #346
Class 1M Laser
 
Join Date: Apr 2011
Location: A random place in north dakota.
Posts: 213
Rep Power: 20
random person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud of
random person random person is offline
Class 1M Laser
 
Join Date: Apr 2011
Location: A random place in north dakota.
Posts: 213
Rep Power: 20
random person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud of
Default Re: DIY Thermal LPM for under $50

Quote:
Originally Posted by lasersbee View Post
The only problem with the Offset control is that it can not
go below 0vdc which is required when the heatsink of the
sensor starts to get warm from repeated Laser tests on the
sensor side.. Which is the problem with the Alpha LPM..
Jerry
Wait... how is that correct? Shouldn't it work? Say you call the top output node V1 and the bottom output node V2. Using the pot you can set V2 to .1V. Then V1 would have to surpass .1V in order for the output, (V1 -V2) >0. So yea, it should zero just fine? Just not in the case if your feeding it to a micro input. However, if its a volt meter display, it should work fine. What am i missing? All the volt meter display will take is V1-V2. It doesn't calculate its output with respect to ground.

Pic for less confusion:
__________________



Last edited by random person; 07-01-2011 at 05:36 PM.
random person is offline   Reply With Quote
Old 07-01-2011, 05:31 PM #347
qumefox's Avatar
Class 3B Laser
 
Join Date: Mar 2010
Location: Jackson, TN
Posts: 3,234
Rep Power: 173
qumefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond repute
qumefox qumefox is offline
Class 3B Laser
qumefox's Avatar
 
Join Date: Mar 2010
Location: Jackson, TN
Posts: 3,234
Rep Power: 173
qumefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

Quote:
Originally Posted by lasersbee View Post
I agree that it would solve the Zero problem...

But you need to be careful using DC/DC converters since
the inexpensive ones tend to produce quite a bit if ripple..
Good filtering would be a must..

We saw that with all the problems with the Kenometer
Lites and other similar built LPMs that used the OPHIR
heads and DC/DC poorly filtered converters...


Jerry


I just think it's amazing that your LPM's are the only ones you don't find flaws with.
__________________
Wavelengths in 'The Collection'
685nm, 655nm, 635nm, 589nm, 532nm, 473nm, 445nm, 405nm

Last edited by qumefox; 07-01-2011 at 05:32 PM.
qumefox is offline   Reply With Quote
Old 07-01-2011, 06:30 PM #348
lasersbee's Avatar
Class 4 Laser
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
lasersbee lasersbee is offline
Class 4 Laser
lasersbee's Avatar
 
Join Date: Sep 2008
Location: Quebec, Canada
Posts: 15,837
Rep Power: 44598
lasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond reputelasersbee has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

Quote:
Originally Posted by qumefox View Post
I just think it's amazing that your LPM's are the only ones you don't find flaws with.
You're the one that brought up DC/DC converters to use with
a Laser Power Meter Circuit...

I'm stating facts as we know them through datasheets and our
own R&D...

We don't use any DC/DC conveters on the LaserBee products
except for the Limited Edition 5Watt LaserBee that uses the
OPHIR head... that requires a split +/- PS.
We uses good filtering on the DC/DC converter we used to
eliminate the reading wandering...

I'm sorry if these facts and information annoys you...
Just don't read what I post..

BTW did you find some flaws with you LaserBee... We would
really like to know so that we can make a better product...
Any useful input would be appreciated....


Jerry

You can contact us at any time on our Website: J.BAUER Electronics
__________________

J.BAUER Electronics Home Page

LaserBee Laser Power Meter Products meet your needs
at affordable Prices:
See them all here on LPF

LaserBee Power Meter products ALWAYS in Stock
and ready to ship

Also available on eBay:Check availability here..

Subsidary: Pharma Electronic Solutions


This banner is available to and can be copied/used FREE by any LaserBee owner

Last edited by lasersbee; 07-01-2012 at 12:20 PM. Reason: Spelling errors
lasersbee is offline   Reply With Quote
Old 07-01-2011, 11:12 PM #349
Class 1M Laser
 
Join Date: Apr 2011
Location: A random place in north dakota.
Posts: 213
Rep Power: 20
random person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud of
random person random person is offline
Class 1M Laser
 
Join Date: Apr 2011
Location: A random place in north dakota.
Posts: 213
Rep Power: 20
random person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud ofrandom person has much to be proud of
Default Re: DIY Thermal LPM for under $50

Quote:
Originally Posted by lasersbee View Post
We don't use any DC/DC conveters on the LaserBee products
except for the Limited Edition 5Watt LaserBee that uses the
OPHIR head... that requires a split +/- PS.
Your micro/ADC/memory is strictly 5V?
__________________


random person is offline   Reply With Quote
Old 08-13-2011, 02:45 PM #350
Class 1 Laser
 
Join Date: Aug 2011
Location: Norway
Posts: 80
Rep Power: 7
KreAture is on a distinguished road
KreAture KreAture is offline
Class 1 Laser
 
Join Date: Aug 2011
Location: Norway
Posts: 80
Rep Power: 7
KreAture is on a distinguished road
Talking Re: DIY Thermal LPM for under $50

I couldn't find a proper schematic either and based on the fact that the data in the brd file suggests different parts were originally intended and later renamed I am wondering if there never was a schematic. (.sch)

So, I reverse-engineered one that is consistent with the brd file allowing forward-back annotation to work. (Change one, other is updated.)

You can find the image and zip of the brd/sch attached so they won't get lost in time...
Attached Thumbnails
DIY Thermal LPM for under -easylpm_1.2.9_drived.png  
Attached Files
File Type: zip easylpm_1.2.9_derived.zip (20.0 KB, 50 views)

Last edited by KreAture; 08-16-2011 at 07:10 PM. Reason: Spelling...
KreAture is offline   Reply With Quote
Old 08-13-2011, 03:12 PM #351
Class 1 Laser
 
Join Date: Aug 2011
Location: Norway
Posts: 80
Rep Power: 7
KreAture is on a distinguished road
KreAture KreAture is offline
Class 1 Laser
 
Join Date: Aug 2011
Location: Norway
Posts: 80
Rep Power: 7
KreAture is on a distinguished road
Talking Re: DIY Thermal LPM for under $50

I couldn't help myself and cleaned it up a bit on the pcb.

I also added a quick noise-reduction for the secondary opamp in the IC.
It really shouldn't have floating inputs so I made it a follower and grounded the input.
Attached Thumbnails
DIY Thermal LPM for under -easylpm_1.2.9_mod_1_pcb.png   DIY Thermal LPM for under -easylpm_1.2.9_mod_1_sch.png  
Attached Files
File Type: zip easylpm_1.2.9_mod_1.zip (20.3 KB, 52 views)
KreAture is offline   Reply With Quote
Old 08-13-2011, 04:33 PM #352
qumefox's Avatar
Class 3B Laser
 
Join Date: Mar 2010
Location: Jackson, TN
Posts: 3,234
Rep Power: 173
qumefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond repute
qumefox qumefox is offline
Class 3B Laser
qumefox's Avatar
 
Join Date: Mar 2010
Location: Jackson, TN
Posts: 3,234
Rep Power: 173
qumefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond reputequmefox has a reputation beyond repute
Default Re: DIY Thermal LPM for under $50

Making the second opamp not float has already been discussed thoroughly in the text in this thread. But no one has drawn up a schematic or board layout for it until you did though.

Though to be honest. Your schematics are confusing the hell out of me. There was nothing wrong with the previously posted schematics except for the second opamp not being terminated properly.
__________________
Wavelengths in 'The Collection'
685nm, 655nm, 635nm, 589nm, 532nm, 473nm, 445nm, 405nm

Last edited by qumefox; 08-13-2011 at 04:42 PM.
qumefox 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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f42/diy-thermal-lpm-under-50-a-51129.html
Posted By For Type Date
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 05-18-2017 10:05 PM
Davide Gironi: July 2014 This thread Refback 02-03-2017 12:48 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 01-25-2017 08:52 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 01-03-2017 10:41 AM
Davide Gironi: July 2014 This thread Refback 01-01-2017 07:38 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 11-01-2016 11:48 AM
Davide Gironi: July 2014 This thread Refback 08-31-2016 02:09 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-26-2016 09:16 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 05-30-2016 04:07 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 04-04-2016 12:05 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 03-25-2016 06:18 PM
home made laser power meter This thread Refback 03-02-2016 01:48 PM
Davide Gironi: July 2014 This thread Refback 02-24-2016 03:09 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 12-13-2015 05:18 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 11-01-2015 08:17 AM
Davide Gironi: July 2014 This thread Refback 10-24-2015 08:53 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 09-22-2015 11:05 PM
Davide Gironi: July 2014 This thread Refback 07-01-2015 12:20 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 05-01-2015 06:43 PM
Davide Gironi: July 2014 This thread Refback 04-20-2015 06:30 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 03-29-2015 08:43 PM
Davide Gironi: July 2014 This thread Refback 02-17-2015 04:29 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 01-23-2015 02:34 PM
Davide Gironi: July 2014 This thread Refback 11-26-2014 10:49 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 11-25-2014 09:46 AM
Davide Gironi: July 2014 This thread Refback 11-20-2014 08:41 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 11-18-2014 07:46 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 11-09-2014 03:00 AM
Lézer teljesítménymér? - Hobbielektronika.hu - online elektronikai magazin és fórum This thread Refback 10-24-2014 07:41 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 10-21-2014 08:39 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 10-14-2014 09:21 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 09-24-2014 07:01 AM
Davide Gironi: July 2014 This thread Refback 09-17-2014 02:00 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-09-2014 05:28 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-04-2014 07:32 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-04-2014 10:09 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-03-2014 10:50 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-03-2014 09:54 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-03-2014 01:13 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-02-2014 01:25 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-02-2014 01:03 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-02-2014 09:01 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-02-2014 04:37 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-02-2014 12:40 AM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-01-2014 11:11 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-01-2014 10:45 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-01-2014 10:34 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-01-2014 09:59 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-01-2014 09:31 PM
Davide Gironi: A cheap and simple Laser Power Meter LPM for small power source This thread Refback 07-01-2014 09:06 PM










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 05:47 PM.


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