Old 03-09-2012, 08:55 PM #1
ZRaffleticket's Avatar
Class 3B Laser
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,765
Rep Power: 424062
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
ZRaffleticket ZRaffleticket is online now
Class 3B Laser
ZRaffleticket's Avatar
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,765
Rep Power: 424062
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
Default "odd" 473nm DPSS reflection

I'm getting a weird reflection off a white wall for my 473 handheld, I'd say it looks like raindrops. (I may have a better picture at night if needed)





I'm comparing it (second pic) to my 473nm labby (first pic), and also showing what/where I'm shining it on.(last pic)
Both were shining on pretty much the same spot between the pictures, and the handheld wasn't moved.
Can anyone explain why it's very "spotty" looking?

(I set the pictures up in this order rather than setting it up in a different order... in this way: What I think it's supposed to look like, what it looks like, then for reference what I'm shining it on)
Attached Thumbnails
"odd" 473nm DPSS reflection-p3090405.jpg   "odd" 473nm DPSS reflection-p3090404.jpg   "odd" 473nm DPSS reflection-p3090403.jpg  


__________________
|
405nm 900mW Sanwu Challenger
|
450nm 300mW EDC
462nm 2W MS-SSW
472nm 2W maglite
480nm 125mW mrcrouse host
485nm 80mW Skywolfeye
488nm 20mW Argon Single Line
495nm 100mW Rich Host
502nm 85mW badboybilly host
510nm 90mW C6
520nm 150mW BTB HL
532nm 25mW Cheap Pen
|
|
589nm 100mW Spartan multiline
594nm 3mW Rigel (Hap's Ex)
|
|
635nm 200mW C6
650nm 200mW 301
|
_________________


DPSS Theoretical Wavelength Chart
ZRaffleticket is online now   Reply With Quote


















Old 03-09-2012, 10:56 PM #2
Cyparagon's Avatar
Class 4 Laser
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,293
Rep Power: 208829
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Cyparagon Cyparagon is online now
Class 4 Laser
Cyparagon's Avatar
 
Join Date: Sep 2007
Location: Wisconsin
Posts: 9,293
Rep Power: 208829
Cyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond reputeCyparagon has a reputation beyond repute
Default Re: "odd" 473nm DPSS reflection

Speckle pattern - Wikipedia, the free encyclopedia

</thread>
__________________
A problem well stated is a problem half solved.
Cyparagon is online now   Reply With Quote
Old 03-09-2012, 11:42 PM #3
ZRaffleticket's Avatar
Class 3B Laser
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,765
Rep Power: 424062
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
ZRaffleticket ZRaffleticket is online now
Class 3B Laser
ZRaffleticket's Avatar
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,765
Rep Power: 424062
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
Default Re: "odd" 473nm DPSS reflection

Well I understand they have speckles, the first picture shows them as well. They're just more grouped together in the portable than in any laser I've ever seen
__________________
|
405nm 900mW Sanwu Challenger
|
450nm 300mW EDC
462nm 2W MS-SSW
472nm 2W maglite
480nm 125mW mrcrouse host
485nm 80mW Skywolfeye
488nm 20mW Argon Single Line
495nm 100mW Rich Host
502nm 85mW badboybilly host
510nm 90mW C6
520nm 150mW BTB HL
532nm 25mW Cheap Pen
|
|
589nm 100mW Spartan multiline
594nm 3mW Rigel (Hap's Ex)
|
|
635nm 200mW C6
650nm 200mW 301
|
_________________


DPSS Theoretical Wavelength Chart
ZRaffleticket is online now   Reply With Quote
Old 03-09-2012, 11:50 PM #4
n2stuff's Avatar
Class 2M Laser
 
Join Date: Nov 2011
Location: Clovis Ca. USA
Posts: 808
Rep Power: 22808
n2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond repute
n2stuff n2stuff is online now
Class 2M Laser
n2stuff's Avatar
 
Join Date: Nov 2011
Location: Clovis Ca. USA
Posts: 808
Rep Power: 22808
n2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond repute
Default Re: "odd" 473nm DPSS reflection

I like this one Eye testing using speckle - Wikipedia, the free encyclopedia I found this out back in 1988 when I built my first hene laser. It is a fun to try on different people. But I still need a closer picture of the dot to see this Rain Drop effect you talking about. It could just be a dirty lens.
__________________
Scott

Last edited by n2stuff; 03-09-2012 at 11:51 PM.
n2stuff is online now   Reply With Quote
Old 03-09-2012, 11:55 PM #5
ZRaffleticket's Avatar
Class 3B Laser
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,765
Rep Power: 424062
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
ZRaffleticket ZRaffleticket is online now
Class 3B Laser
ZRaffleticket's Avatar
 
Join Date: Feb 2010
Location: Pennsylvania, USA
Posts: 2,765
Rep Power: 424062
ZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond reputeZRaffleticket has a reputation beyond repute
Send a message via Skype™ to ZRaffleticket
Default Re: "odd" 473nm DPSS reflection

Full size picture

It's not the dot the shows the raindrop-type effect, it's the scenery that's lit up by the laser.
spots are a bit more distinct, a lot less light is actually visible between the spots
__________________
|
405nm 900mW Sanwu Challenger
|
450nm 300mW EDC
462nm 2W MS-SSW
472nm 2W maglite
480nm 125mW mrcrouse host
485nm 80mW Skywolfeye
488nm 20mW Argon Single Line
495nm 100mW Rich Host
502nm 85mW badboybilly host
510nm 90mW C6
520nm 150mW BTB HL
532nm 25mW Cheap Pen
|
|
589nm 100mW Spartan multiline
594nm 3mW Rigel (Hap's Ex)
|
|
635nm 200mW C6
650nm 200mW 301
|
_________________


DPSS Theoretical Wavelength Chart

Last edited by ZRaffleticket; 03-09-2012 at 11:57 PM.
ZRaffleticket is online now   Reply With Quote
Old 03-09-2012, 11:58 PM #6
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: "odd" 473nm DPSS reflection

Can you see it at long distance to or is it only up close.?
__________________


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

Last edited by lazeerer; 03-09-2012 at 11:58 PM.
lazeerer is offline   Reply With Quote
Old 03-10-2012, 12:19 AM #7
n2stuff's Avatar
Class 2M Laser
 
Join Date: Nov 2011
Location: Clovis Ca. USA
Posts: 808
Rep Power: 22808
n2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond repute
n2stuff n2stuff is online now
Class 2M Laser
n2stuff's Avatar
 
Join Date: Nov 2011
Location: Clovis Ca. USA
Posts: 808
Rep Power: 22808
n2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond reputen2stuff has a reputation beyond repute
Default Re: "odd" 473nm DPSS reflection

To me it looks like a magnified reflection of the dot.
__________________
Scott
n2stuff is online now   Reply With Quote
Old 03-10-2012, 12:25 AM #8
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: "odd" 473nm DPSS reflection

My 660nm laser does this when i use a specific lens and view the dot area at ~25 feet.

Iam thinking its the lens.
__________________


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 03-10-2012, 12:25 AM #9
Trevor's Avatar
Class 3B Laser
 
Join Date: Jul 2009
Location: Boulder, CO
Posts: 4,510
Rep Power: 11090
Trevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond repute
Trevor Trevor is offline
Class 3B Laser
Trevor's Avatar
 
Join Date: Jul 2009
Location: Boulder, CO
Posts: 4,510
Rep Power: 11090
Trevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond reputeTrevor has a reputation beyond repute
Default Re: "odd" 473nm DPSS reflection

It's just an interference pattern. You might not have noticed it in higher powered or more stable (physically - like a labby) laser.

Trevor
__________________
Code:
23:10 <ARG>    nothing has blown up yet :)
23:10 <Trevor> that is a distressingly low standard for success
Trevor 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

























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 07:50 PM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC