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 > 445nm Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 08-15-2010, 11:20 AM #1
leukoplast's Avatar
Class 2 Laser
 
Join Date: Jan 2007
Location: Central Coast, CA
Posts: 368
Rep Power: 29
leukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant future
leukoplast leukoplast is offline
Class 2 Laser
leukoplast's Avatar
 
Join Date: Jan 2007
Location: Central Coast, CA
Posts: 368
Rep Power: 29
leukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant future
Arrow 445nm vs 532nm brightness comparison.

I realize a 532nm is going to be perceived as significantly brighter to a equal output 445nm laser. What I would like to know is the estimated guess in brightness from people who have personally compared their 445's to their 532's.

For example. Lets say somebody has a 1000mW 445nm, and they think it is about as bright as a 100mW green. That is all I would like to know.

Reason I ask is because I am going to be starting a 445 build here within the next week or so. I want to make one that outputs roughly 150mW. So based on the responses in this thread, I will be able to make a estimated ratio of which I could apply to the 150mW I want to build. This way I can get a idea of how bright it might actually be.

Appreciate it!


leukoplast is offline   Reply With Quote







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







Old 08-15-2010, 11:30 AM #2
DJNY's Avatar
Class 4 Laser
 
Join Date: Nov 2009
Location: Austria
Posts: 5,996
Rep Power: 987
DJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond repute
DJNY DJNY is offline
Class 4 Laser
DJNY's Avatar
 
Join Date: Nov 2009
Location: Austria
Posts: 5,996
Rep Power: 987
DJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond reputeDJNY has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.

You need 3-4x the power of 445nm to get same brightness as with a 532nm.

Here is a shot 1000mW 449nm vs 200mW 532nm


The 449nm is a tick brighter.

__________________
405nm >> Wickedlasers SONAR by lazeerer peak@968mW
445nm >> Kryton Smooth by lazeerer peak@2075mW
453nm >> Lipstick by rhd peak@158mW
473nm >> Optotronics RPL-B peak@112mW
515nm >> Skylasers HL peak@41mW
532nm >> Novalasers Alpha HP peak@284mW
589nm >> CNI PGL-III-A peak@89mW
594nm >> Laserglow Rigel peak@4mW
635nm >> MXDL by DTR peak@38mW
642nm >> Saillaser peak@23mW
660nm >> CR2 by lazeerer peak@524mW
685nm >> MXDL by lazereer peak@42mW

Above lasers measured with an Ophir nospin LPM


- - - - - - - - -
Interested? >> Click onto the laser titles for more information
- - - - - - - - -


Note that Imageshack is automatically resizing some of my older
pictures back to original full-size after a while.
DJNY is offline   Reply With Quote
Old 08-15-2010, 09:57 PM #3
Class 1M Laser
 
Join Date: Oct 2007
Location: Cleveland Heights, OH
Posts: 106
Rep Power: 13
x101xtreme is just really nicex101xtreme is just really nicex101xtreme is just really nicex101xtreme is just really nice
x101xtreme x101xtreme is offline
Class 1M Laser
 
Join Date: Oct 2007
Location: Cleveland Heights, OH
Posts: 106
Rep Power: 13
x101xtreme is just really nicex101xtreme is just really nicex101xtreme is just really nicex101xtreme is just really nice
Default Re: 445nm vs 532nm brightness comparison.

1.1 Watts of 445nm is about the same brightness to me as a 250-300mW Green at night.

During the day, it looks the same as a 150mW green.
__________________
Lasers:
200mW CNI GLP
168mW Optotronics Premium Pen Laser
50mW o-like custom green
30mW Ebay greenie

80mW Altoids PHR laser
600mW Pioneer 12x laser

1.6 Watt 445nm Jayrob Solarforce L2P Laser

330mW Custom Built LPC-815 Red Laser
x101xtreme is offline   Reply With Quote
Old 08-15-2010, 10:25 PM #4
Burnsy's Avatar
Class 1M Laser
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Burnsy Burnsy is offline
Class 1M Laser
Burnsy's Avatar
 
Join Date: Apr 2010
Location: Switzerland
Posts: 242
Rep Power: 25
Burnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant futureBurnsy has a brilliant future
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by x101xtreme View Post
1.1 Watts of 445nm is about the same brightness to me as a 250-300mW Green at night.

During the day, it looks the same as a 150mW green.
That's because the eyes sensivity peak of light is during day at about 555nm but decreases in night to about 515nm (correct me if I'm wrong)
so closer to blue, seen on Wiki here (sorry it's german):

blue curve is at night, red during day

__________________
- Pics of my avatar *link*-

655nm 195mW O-like Dilda
635nm 45mW Sanyo Micro
594nm 2.5mW Laserglow Rigel
532nm 607mW O-like
532nm 77mW Rayfoss
532nm 85mW DL Viper
473nm 104mW DL Spartan - Review link
445nm 1.6W Ehgemus/DTR - link
445nm 268mW Ehgemus
405nm 200mW Beamq *broken - scam* - link
405nm 620mW 12x Chrome Pocket - link

Peak powers of my lasers measured by USB Laserbee 2.5W
Burnsy is offline   Reply With Quote
Old 08-15-2010, 10:33 PM #5
rangedunits's Avatar
٩(̾●̮̮̃̾•̃̾)۶ __̴ı̴̴̡&
 
Join Date: Jan 2008
Location: Montréal, Canada
Posts: 3,588
Rep Power: 229
rangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond repute
Send a message via MSN to rangedunits
rangedunits rangedunits is offline
٩(̾●̮̮̃̾•̃̾)۶ __̴ı̴̴̡&
rangedunits's Avatar
 
Join Date: Jan 2008
Location: Montréal, Canada
Posts: 3,588
Rep Power: 229
rangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond reputerangedunits has a reputation beyond repute
Send a message via MSN to rangedunits
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by x101xtreme View Post
1.1 Watts of 445nm is about the same brightness to me as a 250-300mW Green at night.

During the day, it looks the same as a 150mW green.
True. I saw the same thing.


Had my evo pro130 and my 900mW 445nm. And the blue dot was about the same at over fifty meters. in the full sunlight .
__________________
CRH-
rangedunits is offline   Reply With Quote
Old 08-15-2010, 10:35 PM #6
HumanSymphony's Avatar
Half Afro / Half Man
 
Join Date: May 2008
Location: Washington
Posts: 2,031
Rep Power: 216
HumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond repute
Send a message via AIM to HumanSymphony Send a message via MSN to HumanSymphony Send a message via Yahoo to HumanSymphony
HumanSymphony HumanSymphony is offline
Half Afro / Half Man
HumanSymphony's Avatar
 
Join Date: May 2008
Location: Washington
Posts: 2,031
Rep Power: 216
HumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond reputeHumanSymphony has a reputation beyond repute
Send a message via AIM to HumanSymphony Send a message via MSN to HumanSymphony Send a message via Yahoo to HumanSymphony
Default Re: 445nm vs 532nm brightness comparison.

Looks like they intersect right at 532nm Making that the optimal wavelength for any conditions
__________________
Quote:
Originally Posted by yobresal View Post
I didn't even know there was a game.
Quote:
Originally Posted by Gryphon View Post
LOL, i didn't know there was a movie
Quote:
Originally Posted by HumanSymphony View Post
DOUBLE LOL!
Laser Rap (Part I)
Laser Rap (Part II)
Laser Rap (Part III)
HumanSymphony is offline   Reply With Quote
Old 08-23-2010, 06:28 PM #7
Kenom's Avatar
Class 4 Laser
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Kenom Kenom is offline
Class 4 Laser
Kenom's Avatar
 
Join Date: May 2007
Posts: 5,629
Rep Power: 304
Kenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond reputeKenom has a reputation beyond repute
Send a message via MSN to Kenom
Default Re: 445nm vs 532nm brightness comparison.







This is a comparison of 600mw of 445nm and 400mw of 532nm.
Kenom is offline   Reply With Quote
Old 08-23-2010, 10:55 PM #8
leukoplast's Avatar
Class 2 Laser
 
Join Date: Jan 2007
Location: Central Coast, CA
Posts: 368
Rep Power: 29
leukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant future
leukoplast leukoplast is offline
Class 2 Laser
leukoplast's Avatar
 
Join Date: Jan 2007
Location: Central Coast, CA
Posts: 368
Rep Power: 29
leukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant futureleukoplast has a brilliant future
Default Re: 445nm vs 532nm brightness comparison.

Awesome, thanks ken! That is actually pretty close in terms of brightness. That is good to hear. I am attempting to build a 50-75mW 445 in a pen, and I was hoping it would still be pretty bright. Based on this, a 75mW 445 may be equivalent to a 40-50mW green. And a 50mW would be similar to a 30mW green. Which is actually still quite bright!
leukoplast is offline   Reply With Quote
Old 08-23-2010, 11:01 PM #9
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.

250mW of 445 is about as bright as 50mW of green. Low light. Just tested it.
Edit:
300mW of 655nm about as bright as 250mW 445.

Last edited by RA_pierce; 08-23-2010 at 11:06 PM.
RA_pierce is online now   Reply With Quote
Old 08-23-2010, 11:08 PM #10
Traveller's Avatar
Class 3R Laser
 
Join Date: Dec 2008
Location: curr. Vienna, AT
Posts: 1,223
Rep Power: 216
Traveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond repute
Traveller Traveller is offline
Class 3R Laser
Traveller's Avatar
 
Join Date: Dec 2008
Location: curr. Vienna, AT
Posts: 1,223
Rep Power: 216
Traveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by Burnsy View Post
That's because the eyes sensivity peak of light is during day at about 555nm but decreases in night to about 515nm...
Very interesting...! Thx for the insight, +1
__________________
Traveller - Geneva * Melbourne * Miami * Vienna

lasers * Reviews
Traveller is offline   Reply With Quote
Old 08-23-2010, 11:11 PM #11
.3lite's Avatar
Class 2 Laser
 
Join Date: May 2009
Location: Poland
Posts: 287
Rep Power: 13
.3lite is just really nice.3lite is just really nice.3lite is just really nice.3lite is just really nice
Send a message via MSN to .3lite
.3lite .3lite is offline
Class 2 Laser
.3lite's Avatar
 
Join Date: May 2009
Location: Poland
Posts: 287
Rep Power: 13
.3lite is just really nice.3lite is just really nice.3lite is just really nice.3lite is just really nice
Send a message via MSN to .3lite
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by RA_pierce View Post
250mW of 445 is about as bright as 50mW of green. Low light. Just tested it.
No, I find 445nm very dark, blue but dark, and I can't even imagine comparing to 532nm because it's just too dark.



I see this color (445nm) compared to 532nm exactly like on this graph, 532nm is way more brighter for me, like ten times or so.
.3lite is offline   Reply With Quote
Old 08-23-2010, 11:17 PM #12
Traveller's Avatar
Class 3R Laser
 
Join Date: Dec 2008
Location: curr. Vienna, AT
Posts: 1,223
Rep Power: 216
Traveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond repute
Traveller Traveller is offline
Class 3R Laser
Traveller's Avatar
 
Join Date: Dec 2008
Location: curr. Vienna, AT
Posts: 1,223
Rep Power: 216
Traveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.


click-the-pic
__________________
Traveller - Geneva * Melbourne * Miami * Vienna

lasers * Reviews
Traveller is offline   Reply With Quote
Old 08-23-2010, 11:20 PM #13
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by .3lite View Post
No, I find 445nm very dark, blue but dark, and I can't even imagine comparing to 532nm because it's just too dark.

I see this color (445nm) compared to 532nm exactly like on this graph, 532nm is way more brighter for me, like ten times or so.
Hmm...
I would actually say that 655nm and 445nm are almost the same brightness per milliWatt.
In direct sunlight, red is brighter.

Edit: I'm talking about the "spot," not the beam, since that is dependent on many more things.
And Traveller, that is a great photo. The color looks very realistic.

Last edited by RA_pierce; 08-23-2010 at 11:26 PM.
RA_pierce is online now   Reply With Quote
Old 08-24-2010, 01:09 AM #14
jbtm's Avatar
Class 2 Laser
 
Join Date: Mar 2010
Posts: 495
Rep Power: 28
jbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant future
jbtm jbtm is offline
Class 2 Laser
jbtm's Avatar
 
Join Date: Mar 2010
Posts: 495
Rep Power: 28
jbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant futurejbtm has a brilliant future
Default Re: 445nm vs 532nm brightness comparison.

New Page 1

Shots of 600mA set 445nm diode compared to 200mW green. You can see the blue vs green on wall, hince why my room glows more blue than green.
__________________
Machinist at work...
jbtm is offline   Reply With Quote
Old 08-24-2010, 01:15 AM #15
RA_pierce's Avatar
Class 3B Laser
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
RA_pierce RA_pierce is online now
Class 3B Laser
RA_pierce's Avatar
 
Join Date: Sep 2007
Location: Southern California
Posts: 3,258
Rep Power: 3873
RA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond reputeRA_pierce has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by jbtm View Post
New Page 1

Shots of 600mA set 445nm diode compared to 200mW green. You can see the blue vs green on wall, hince why my room glows more blue than green.
It's hard to determine "brightness" in a photo.
For example, my camera makes 250mW of 445nm look brighter than 130mW of 532nm which is not the case in reality.

A 200mW green should be much brighter than a 445nm ~500mW.
RA_pierce is online now   Reply With Quote
Old 08-24-2010, 09:38 AM #16
Traveller's Avatar
Class 3R Laser
 
Join Date: Dec 2008
Location: curr. Vienna, AT
Posts: 1,223
Rep Power: 216
Traveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond repute
Traveller Traveller is offline
Class 3R Laser
Traveller's Avatar
 
Join Date: Dec 2008
Location: curr. Vienna, AT
Posts: 1,223
Rep Power: 216
Traveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond reputeTraveller has a reputation beyond repute
Default Re: 445nm vs 532nm brightness comparison.

Quote:
Originally Posted by RA_pierce View Post
It's hard to determine "brightness" in a photo.
For example, my camera makes 250mW of 445nm look brighter than 130mW of 532nm which is not the case in reality.
That's interesting, particularly since almost all cameras favor green, just like the human eye. The Bayer filter pattern is either GRGB or RGGB... :-/

EDIT: look at my photo (above) and tell me which color is more striking to you...
__________________
Traveller - Geneva * Melbourne * Miami * Vienna

lasers * Reviews
Traveller 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 03:18 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