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 > Blue, Yellow, & Other Colored Lasers



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



Reply
 
LinkBack Thread Tools Display Modes
Old 07-12-2011, 09:46 PM #1
Junior Member
 
Join Date: Jul 2011
Posts: 15
Rep Power: 0
th3pyr0 is on a distinguished road
th3pyr0 th3pyr0 is offline
Junior Member
 
Join Date: Jul 2011
Posts: 15
Rep Power: 0
th3pyr0 is on a distinguished road
Question Green 50mw vs blue/violet100mw

I do not own a blue or violet laser. One thing I do know is that the human eye is not as receptive to that color as green is. pardon me if there is a similar thread about this as I couldn't find anything.

What would be the comparison between a 50mw green laser( I own the FLX model from Rayfoss) and a 100mw violet/blue( no specific laser, just in general) laser as far as how bright it is. Will a 100mw violet be brighter? dimmer? the same as a 50mw green? How do these 2 colors compare? Thanks!


th3pyr0 is offline   Reply With Quote







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







Old 07-12-2011, 10:19 PM #2
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
joeyss joeyss is offline
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
Default Re: Green 50mw vs blue/violet100mw

It'll be noticeably dimmer. I have a 50 of both. You should still be able to see the beam at night , but the dot won't go that far. I'd say it's about 1/10th as bright as the 50mw green. It depends on what it hits as some things will fluorescence.
joeyss is offline   Reply With Quote
Old 07-13-2011, 01:30 AM #3
InfinitusEquitas's Avatar
Class 4 Laser
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,004
Rep Power: 10341
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
InfinitusEquitas InfinitusEquitas is offline
Class 4 Laser
InfinitusEquitas's Avatar
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,004
Rep Power: 10341
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
Default Re: Green 50mw vs blue/violet100mw

Quote:
Originally Posted by joeyss View Post
It'll be noticeably dimmer. I have a 50 of both. You should still be able to see the beam at night , but the dot won't go that far. I'd say it's about 1/10th as bright as the 50mw green. It depends on what it hits as some things will fluorescence.
IMO not even 1/10th as bright. To me 150mW of 405nm (violet) appears about as bright as 10mW of green.

There is some variation in how individuals perceive the lower wavelength.
InfinitusEquitas is offline   Reply With Quote
Old 07-13-2011, 02:50 AM #4
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
joeyss joeyss is offline
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
Default Re: Green 50mw vs blue/violet100mw

Actually if you're in a room and you shine at something it will be 1/10 to 1/5 due to the subtle florescent effects espically if you have a bed and the white sheets are uncovered , but yea it loses once you hit something like a tree 30 feet away outside. Heck my camera shows the 50 mw 405 while it dosen't even pick up a 30 mw or so 532 lighting up my room. Strange isn't it? I think I may be able to see it better than most people since I can see the beam when it's not even fully dark or in situations where I can't see my red 50 mw beam. Also my 50mw red looks dimmer in terms of how it lights up my room even though the dot looks much brighter outside at night. It gets a bit freaky at sometimes.

Last edited by joeyss; 07-13-2011 at 02:50 AM.
joeyss is offline   Reply With Quote
Old 07-13-2011, 02:59 AM #5
Fenzir's Avatar
Class 2M Laser
 
Join Date: Jan 2011
Location: UPENN, Pennsylvania
Posts: 700
Rep Power: 15
Fenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to all
Fenzir Fenzir is offline
Class 2M Laser
Fenzir's Avatar
 
Join Date: Jan 2011
Location: UPENN, Pennsylvania
Posts: 700
Rep Power: 15
Fenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to all
Default Re: Green 50mw vs blue/violet100mw

I personally have a 100mw 405nm laser and a 50mw and I can NOT see the beam at all. These lasers are LPM'd and still burn really nice. Most, if not all of my friends say they can see the beam, but I can hardly see the dot. It really is different from person to person and I have 20/20 vision. Even when I smoke a room up, I can just hardly see the beam while I can easily see the beam on a 1mw red laser, however, I blame my eyes.
__________________
So what if I'm back?
Fenzir is offline   Reply With Quote
Old 07-13-2011, 03:01 AM #6
InfinitusEquitas's Avatar
Class 4 Laser
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,004
Rep Power: 10341
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
InfinitusEquitas InfinitusEquitas is offline
Class 4 Laser
InfinitusEquitas's Avatar
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,004
Rep Power: 10341
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
Default Re: Green 50mw vs blue/violet100mw

^^^I can barely see the beam of a 290mW red laser. Vision is perfect... with glasses
InfinitusEquitas is offline   Reply With Quote
Old 07-13-2011, 03:04 AM #7
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
joeyss joeyss is offline
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
Default Re: Green 50mw vs blue/violet100mw

Strange isn't it? If you add just a slight bit of fog I see the full beam of my 50 mw red. When my o-like 200 mw red worked I was able to see the beam a little bit better than my 50 mw 405. It also looked more "normal" and not like some strange alien light.
joeyss is offline   Reply With Quote
Old 07-13-2011, 03:09 AM #8
InfinitusEquitas's Avatar
Class 4 Laser
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,004
Rep Power: 10341
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
InfinitusEquitas InfinitusEquitas is offline
Class 4 Laser
InfinitusEquitas's Avatar
 
Join Date: Mar 2011
Location: 20 Minutes from NYC.
Posts: 16,004
Rep Power: 10341
InfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond reputeInfinitusEquitas has a reputation beyond repute
Send a message via AIM to InfinitusEquitas Send a message via MSN to InfinitusEquitas Send a message via Yahoo to InfinitusEquitas
Default Re: Green 50mw vs blue/violet100mw

With smoke I can see either clearly... without it, to visibility of 150mW of 405nm is about the same as 200mW of red.

What does bug me a great deal with 405's is that I can't see a dot... I see a kind of hazy bright blob. Same effect with 445's but not nearly as pronounced.

Lastly... I can't stand to see the dot of a 445 indoors. Even from a perfectly safe distance, ~100mW of 445nm dot from 5 feet away on an off white wall, leaves kind of yellow after images, and generally strains my eyes.
InfinitusEquitas is offline   Reply With Quote
Old 07-13-2011, 03:12 AM #9
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
joeyss joeyss is offline
Omnipotent
 
Join Date: Jul 2008
Location: Bangor Pennsylvania Untited States
Posts: 1,121
Rep Power: 439
joeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond reputejoeyss has a reputation beyond repute
Send a message via AIM to joeyss
Default Re: Green 50mw vs blue/violet100mw

Lasers never strain my eyes unless they're too bright and up close(that's why you use googles) , but you can see your eyes trying to focus it if you're in a dark room and hold your head steady and try not to move your eyes for a second or two before and after comes on. If you move your eyes you see it shrink and then get bigger like it's going back in focus.
joeyss is offline   Reply With Quote
Old 07-13-2011, 05:04 AM #10
Fenzir's Avatar
Class 2M Laser
 
Join Date: Jan 2011
Location: UPENN, Pennsylvania
Posts: 700
Rep Power: 15
Fenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to all
Fenzir Fenzir is offline
Class 2M Laser
Fenzir's Avatar
 
Join Date: Jan 2011
Location: UPENN, Pennsylvania
Posts: 700
Rep Power: 15
Fenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to allFenzir is a name known to all
Default Re: Green 50mw vs blue/violet100mw

Funny, I can see the beam of my 5mw red laser, although I could never figure out if it was 635nm or 650+.
__________________
So what if I'm back?
Fenzir is offline   Reply With Quote
Old 07-14-2011, 08:57 PM #11
Class 2 Laser
 
Join Date: Jan 2011
Posts: 358
Rep Power: 1116
lazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond repute
lazeristasUVISIR lazeristasUVISIR is offline
Class 2 Laser
 
Join Date: Jan 2011
Posts: 358
Rep Power: 1116
lazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond reputelazeristasUVISIR has a reputation beyond repute
Default Re: Green 50mw vs blue/violet100mw

Quote:
Originally Posted by Fenzir View Post
I could never figure out if it was 635nm or 650+.
Had the same problem with 473 and 488 when seeing only one of them. Both - colors are completely different
lazeristasUVISIR is offline   Reply With Quote
Old 08-05-2011, 03:33 AM #12
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Green 50mw vs blue/violet100mw

Perhaps more like 30x:
Relative Laser Beam Brightness Calculator: (532nm 50mw) vs. (405nm 100mw)
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 08-05-2011, 04:25 AM #13
Vextor's Avatar
Member
 
Join Date: May 2011
Location: BH/Brazil
Posts: 37
Rep Power: 0
Vextor will become famous soon enoughVextor will become famous soon enough
Vextor Vextor is offline
Member
Vextor's Avatar
 
Join Date: May 2011
Location: BH/Brazil
Posts: 37
Rep Power: 0
Vextor will become famous soon enoughVextor will become famous soon enough
Default Re: Green 50mw vs blue/violet100mw

@rhd: Does that calculator consider the beam thickness? I mean, the beam from a green is usually much more concentrated than other colors. So, I think the Rayleigh scattering is proportional (?) to the density of the beam.
Vextor is offline   Reply With Quote
Old 08-05-2011, 04:54 AM #14
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Green 50mw vs blue/violet100mw

Quote:
Originally Posted by Vextor View Post
@rhd: Does that calculator consider the beam thickness? I mean, the beam from a green is usually much more concentrated than other colors. So, I think the Rayleigh scattering is proportional (?) to the density of the beam.
Interesting thought -

At the same time, a more densely concentrated beam should engage Rayleigh scattering to a greater degree per mm of thickness. So I think it balances the equation.

That said, for non-Rayleigh reasons, beam thickness probably DOES need to be taken into account at some level. I can illustrate why by suggesting the border-case of taking a three-foot-wide beam. Even a 100mW of 532 would probably have almost no visible brightness at 3 feet wide, while a 2mm beam of the same power would be highly visible.

This border case would never arise in practice, but it at least illustrates that thickness of the beam should have some impact on perceived brightness.
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Old 08-05-2011, 05:45 AM #15
Vextor's Avatar
Member
 
Join Date: May 2011
Location: BH/Brazil
Posts: 37
Rep Power: 0
Vextor will become famous soon enoughVextor will become famous soon enough
Vextor Vextor is offline
Member
Vextor's Avatar
 
Join Date: May 2011
Location: BH/Brazil
Posts: 37
Rep Power: 0
Vextor will become famous soon enoughVextor will become famous soon enough
Default Re: Green 50mw vs blue/violet100mw

I agree.

Another doubt I have on that calculator is: Does it consider the light-adapted (photopic) or the dark-adapted (scotopic) human sensitivity? It should be the scotopic since we enjoy our beams at dark. At least it should be somewhere between both sensitivities, considering lit rooms.
Vextor is offline   Reply With Quote
Old 08-05-2011, 05:53 AM #16
rhd's Avatar
rhd rhd is offline
Class 4 Laser
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
rhd rhd is offline
Class 4 Laser
rhd's Avatar
 
Join Date: Dec 2010
Posts: 8,491
Rep Power: 1392
rhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond reputerhd has a reputation beyond repute
Default Re: Green 50mw vs blue/violet100mw

Quote:
Originally Posted by Vextor View Post
I agree.

Another doubt I have on that calculator is: Does it consider the light-adapted (photopic) or the dark-adapted (scotopic) human sensitivity? It should be the scotopic since we enjoy our beams at dark. At least it should be somewhere between both sensitivities, considering lit rooms.
This part has been discussed at length actually. Beams will always be sensed by the light-adapted vision, because they are an intensely bright light source.
__________________
CURRENT WAVELENGTHS:
405|441|450|467|473|495|505|520|532|556|PGLRG|589|594|632|638|660


SAFETY & IMPORTANT READING (threads authored and contributed to by various members of LPF):
- Federal Aviation Administration - Laser Safety Initiative (link)
- Info release from Laserglow - Default Canadian restrictions on portable lasers (link)
- The Necessity of Safety Goggles (link)

rhd is offline   Reply With Quote
Reply

Tags
blue, comparison, green, violet





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 10:39 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