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 11-19-2007, 12:24 AM #1
knimrod's Avatar
Class 2 Laser
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
knimrod knimrod is offline
Class 2 Laser
knimrod's Avatar
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
Default Sony LD -- Line through projected spot

I've been running my DIY flashlight laser with a Senkat LD at just under 250mA for about 15 minutes of total run time.. *Never more than 2 or 3 minutes at a time.

A line has appeared through the projected spot recently and it seems to fade in and fade out randomly. It's not the lens as the line does not change orientation when rotating the lens though the line does seem to focus with the spot. *I can't see anything amiss in the raw LD output either. *There are no apparent occlusions and nothing visible on the LD window (I have a stereo microscope). *It seems to be the LD itself. *The power does not seem affected (no power meter yet).

Here's a picture of the spot:



Ignore the large ugly blob; It's a camera artifact. * Has anyone ever seen this before?


__________________
I never give them hell. I just tell the truth and they think it's hell. - Harry S. Truman
knimrod is offline   Reply With Quote







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







Old 11-19-2007, 12:37 AM #2
Class 3R Laser
 
Join Date: Nov 2007
Posts: 1,047
Rep Power: 62
wooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond repute
wooooooolazer wooooooolazer is offline
Class 3R Laser
 
Join Date: Nov 2007
Posts: 1,047
Rep Power: 62
wooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond reputewooooooolazer has a reputation beyond repute
Default Re: Sony LD -- Line through projected spot

Thats what mine looked like for awhile it worked jsut fine

Then it burned out like 4 min ago ahhhh!!!! :'( :'( :'( :'( :'( :'( :'( :'( :'(
wooooooolazer is offline   Reply With Quote
Old 11-19-2007, 12:46 AM #3
timelord
Guest
 
Posts: n/a
timelord
Guest
 
Posts: n/a
Default Re: Sony LD -- Line through projected spot

This is quite a normal thing with these diodes so don't be alarmed all is well
  Reply With Quote
Old 11-19-2007, 02:55 AM #4
rubberband's Avatar
Class 2 Laser
 
Join Date: Jul 2007
Posts: 492
Rep Power: 12
rubberband will become famous soon enough
Send a message via AIM to rubberband
rubberband rubberband is offline
Class 2 Laser
rubberband's Avatar
 
Join Date: Jul 2007
Posts: 492
Rep Power: 12
rubberband will become famous soon enough
Send a message via AIM to rubberband
Default Re: Sony LD -- Line through projected spot

yea both of my diy reds are like that no need to worry
rubberband is offline   Reply With Quote
Old 11-19-2007, 08:05 AM #5
Class 1 Laser
 
Join Date: Sep 2007
Posts: 73
Rep Power: 10
yes8s is on a distinguished road
yes8s yes8s is offline
Class 1 Laser
 
Join Date: Sep 2007
Posts: 73
Rep Power: 10
yes8s is on a distinguished road
Default Re: Sony LD -- Line through projected spot

Same here!! Also a couple of mine developed a slight halo. But all work fine.
yes8s is offline   Reply With Quote
Old 11-19-2007, 11:59 AM #6
Class 1M Laser
 
Join Date: Sep 2007
Posts: 209
Rep Power: 10
Greyfox is on a distinguished road
Greyfox Greyfox is offline
Class 1M Laser
 
Join Date: Sep 2007
Posts: 209
Rep Power: 10
Greyfox is on a distinguished road
Default Re: Sony LD -- Line through projected spot

I believe that both the line and halo have something to do with the window. With each one I have, those artifacts disappeared when I opened the can and removed the window and top section from the beam path.
Greyfox is offline   Reply With Quote
Old 11-19-2007, 12:12 PM #7
Chris.
Guest
 
Posts: n/a
Chris.
Guest
 
Posts: n/a
Default Re: Sony LD -- Line through projected spot

Quote:
Originally Posted by GreyFox
I believe that both the line and halo have something to do with the window. With each one I have, those artifacts disappeared when I opened the can and removed the window and top section from the beam path.
How did you remove the end, a file?
  Reply With Quote
Old 11-19-2007, 12:35 PM #8
Junior Member
 
Join Date: Nov 2007
Posts: 29
Rep Power: 0
WahHK is a glorious beacon of lightWahHK is a glorious beacon of lightWahHK is a glorious beacon of lightWahHK is a glorious beacon of lightWahHK is a glorious beacon of light
WahHK WahHK is offline
Junior Member
 
Join Date: Nov 2007
Posts: 29
Rep Power: 0
WahHK is a glorious beacon of lightWahHK is a glorious beacon of lightWahHK is a glorious beacon of lightWahHK is a glorious beacon of lightWahHK is a glorious beacon of light
Default Re: Sony LD -- Line through projected spot

I think the line is light leakage at the junction of the diode.
WahHK is offline   Reply With Quote
Old 11-19-2007, 08:03 PM #9
Gazoo's Avatar
Class 3B Laser
 
Join Date: Jun 2007
Location: Dallas Tx
Posts: 3,199
Rep Power: 180
Gazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond repute
Gazoo Gazoo is offline
Class 3B Laser
Gazoo's Avatar
 
Join Date: Jun 2007
Location: Dallas Tx
Posts: 3,199
Rep Power: 180
Gazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond reputeGazoo has a reputation beyond repute
Default Re: Sony LD -- Line through projected spot

My open can diode does also have a line through it, but it does not effect performance.
Gazoo is offline   Reply With Quote
Old 11-19-2007, 10:17 PM #10
Class 1M Laser
 
Join Date: Sep 2007
Posts: 209
Rep Power: 10
Greyfox is on a distinguished road
Greyfox Greyfox is offline
Class 1M Laser
 
Join Date: Sep 2007
Posts: 209
Rep Power: 10
Greyfox is on a distinguished road
Default Re: Sony LD -- Line through projected spot

Quote:
Originally Posted by Chris.
How did you remove the end, a file?
No, I used a diamond wheel and removed the entire front portion of the can, cleaning up the edges all the way down to the base.
Greyfox is offline   Reply With Quote
Old 11-20-2007, 02:39 AM #11
Class 2M Laser
 
Join Date: Aug 2007
Posts: 725
Rep Power: 66
LarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond repute
LarryQ LarryQ is offline
Class 2M Laser
 
Join Date: Aug 2007
Posts: 725
Rep Power: 66
LarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond reputeLarryQ has a reputation beyond repute
Default Re: Sony LD -- Line through projected spot

I have an Open can diode and a GB diode that have this line...

I also believe it is a light leak in the junction..but it doesn't hurt my burning at all!!!!!

When you have 325mA going through a GB diode...it's hard to get upset about that line when whatever you point the laser at smokes on contact! *8-)

If anyone asks..just tell them it's a "Saturn's Ring" beam..very hard to produce....very rare....and very beautiful!

hehehehehhe

Larry
LarryQ is offline   Reply With Quote
Old 11-20-2007, 05:00 AM #12
amkdeath's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Posts: 2,631
Rep Power: 143
amkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond repute
amkdeath amkdeath is offline
Class 3B Laser
amkdeath's Avatar
 
Join Date: Oct 2007
Posts: 2,631
Rep Power: 143
amkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond repute
Default Re: Sony LD -- Line through projected spot

its very normal, In fact, I used that line to tell me when it was focused. When you can clearly see the line it is focused. At least for mine it was like that....


KEEP your laser safe.

DONT get over suspicios and open it up to do a "check"

DO NOT put too much pressure on the driver circut.

learn from my mistakes and dont make them.

thanks

amk

OMG TUESDAY IS ALMOST HERE
__________________
My Webpage:
http://www.AmirRK.com
amkdeath is offline   Reply With Quote
Old 11-20-2007, 05:49 AM #13
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: Sony LD -- Line through projected spot

umm it is tuesday ;D ;D ;D
Things is offline   Reply With Quote
Old 11-20-2007, 07:36 AM #14
Class 2 Laser
 
Join Date: Aug 2007
Posts: 422
Rep Power: 12
zerafiel is on a distinguished road
zerafiel zerafiel is offline
Class 2 Laser
 
Join Date: Aug 2007
Posts: 422
Rep Power: 12
zerafiel is on a distinguished road
Default Re: Sony LD -- Line through projected spot

I hate the line in my lasers. I don't think it is normal. In fact, I think the very fact that there is leakage from the junction is a sign of defective production methods. There are also a few reports of the line appearing only after pushing the diode past a certain limit.

It just seems like word of mouth that this line thingy is normal because many people have it. It could also be the case that many people are ignorant about the issue and just following what other people say until it becomes normal.

I would like a more convincing explanation to tell me my laser is not being killed slowly or already dying even though it is still performing up to mark. Still it might be perfectly normal. :-/
zerafiel is offline   Reply With Quote
Old 11-20-2007, 03:47 PM #15
knimrod's Avatar
Class 2 Laser
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
knimrod knimrod is offline
Class 2 Laser
knimrod's Avatar
 
Join Date: Nov 2007
Location: Lansing, MI
Posts: 384
Rep Power: 13
knimrod is a jewel in the roughknimrod is a jewel in the roughknimrod is a jewel in the rough
Default Re: Sony LD -- Line through projected spot

It may well have something to do with pushing them to their limits. The line wasn't there initially and appeared after some limited use. I'm pretty sure it's the junction itself because as someone pointed out, the line focuses with the beam. It's odd that the line seems to fade in and out randomly. Sometimes it's very noticeable and others, it's barely perceptible.
__________________
I never give them hell. I just tell the truth and they think it's hell. - Harry S. Truman
knimrod is offline   Reply With Quote
Old 11-21-2007, 03:02 AM #16
amkdeath's Avatar
Class 3B Laser
 
Join Date: Oct 2007
Posts: 2,631
Rep Power: 143
amkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond repute
amkdeath amkdeath is offline
Class 3B Laser
amkdeath's Avatar
 
Join Date: Oct 2007
Posts: 2,631
Rep Power: 143
amkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond reputeamkdeath has a reputation beyond repute
Default Re: Sony LD -- Line through projected spot

it wasnt tuesday where I live when I posted that.


it is now

sorry for off topic

dont worry about it, its normal. If youre scared then down ur pot 10 or 20 mA's, Not what I would do, but if ur suspicios tht ur pshing ur diode to the limits that would help.

__________________
My Webpage:
http://www.AmirRK.com
amkdeath 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 06:44 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