Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

LPF Donation via Stripe | LPF Donation - Other Methods

Links below open in new window

ArcticMyst Security by Avery

How do YOU see 405nm?

DJNY

DJNY

0
Joined
Nov 2, 2009
Messages
5,991
Points
83
This picture shows the colors of the wavelengths very similar to how I see them in reality. Smoke has been added to the scene.

 





L

LPFUser

0
Joined
Feb 6, 2011
Messages
9
Points
0
yeah i agree with that - mines does burn pretty well it just requires good focus in most cases for me. perhaps your laser is not 400mw or perhaps it has a problem?
 
borgqueenx

borgqueenx

0
Joined
Jun 30, 2008
Messages
1,660
Points
48
Arshus said:
My 405 looks violet, except when I point it at a white cloth, then its light blue.
Click to expand...

same goes for me.

plus i cant focus my eyes on the dot when the 405 has some power and is focused to the smallest it can get. Its really unconfortable for my eyes.
 
S

Silver

0
Joined
Apr 14, 2012
Messages
22
Points
0
Grix said:
As you probably know near-UV light is often playing tricks on our brain and everyone perceive 405nm differently, both in brightness and color.
So I'm wondering how YOU would describe 405nm?

The reason I'm asking is because in my experience 405nm is different from what most other people would tell me.
First of all, I see 405nm as more blue than violet, definately. Also it's a very dirty and bleach color to me, compared to any other wavelength I've seen. The beam is also different from the dot in both color and brightness. The dot is much more "dirty and bleach" than the beam, and much weaker.
Of course the color can't be displayed correctly at a computer screen, but I've tried to draw what I mean to make it clearer to you:
Click to expand...
How would you compare the 405nm, 400mw (blue pointer), from Olike to their 100mw power rock Green. Im only interested in distance as it compares to a green 100mw Obvious choice would be their >500mw Green, and will order this as I know what to expext from the green. What could I expect from the blue. Noting I already have the a 200mw Green which is crap compared to the 100mw from Olike, I paid 5 times more for this 200mw and the shipping time was well over a month. I know I won't be disappointed with olikes product and service only need some comaprisons between blue and green. Again 100mw Green Vrs 400mw Blue.
 
ZRaffleticket

ZRaffleticket

0
Joined
Feb 4, 2010
Messages
3,280
Points
113
Instead of necroposting in an old thread up why not make a brand new one?

What do you mean by distance? A laser will travel in a straight line until something stops it.

Also, just a note 405nm is violet
 
Last edited:
Cromagnum

Cromagnum

0
Joined
Feb 8, 2010
Messages
57
Points
0
Of all the colors I've seen, the violet dot appears very strange in color and intensity to my own eyes. I like the really awesome fluorescence effects I get with it depending what it is shined on though. Never had one bright enough to see the beam though.
 
Seoul_lasers

Seoul_lasers

0
Joined
Jul 4, 2008
Messages
2,499
Points
113
FireMyLaser said:
The dot looks truly violet, the beam looks gray-ish in normal conditions. In thick fog the beam looks violet just like the dot.
Click to expand...

I see it the same as you. The beam without glasses on appears blue grey/ whitish blue.
Dot is purple to white purple and blurry.

I am overly cautious with my lasers. I don't make a habit of looking at my lasers without glasses on 99% of the time.
 
Last edited:
Cube777

Cube777

0
Joined
Jul 22, 2012
Messages
426
Points
28
No matter how hard I try, I can't focus my eyes on the dot, just a big blurry dot, but definitely a very violet color. Nothing blue about it to me...
 
Th3dArKn3o

Th3dArKn3o

0
Joined
Dec 23, 2012
Messages
121
Points
0
The dot is white with purple/violet around it, the beam is deep and dark violet very beautiful actually ...
My Camera pick ups the beam sort of blue very similar to 445
 
Last edited:
N

norbie

0
Joined
Jul 6, 2012
Messages
37
Points
0
Grix said:
As you probably know near-UV light is often playing tricks on our brain and everyone perceive 405nm differently, both in brightness and color.
So I'm wondering how YOU would describe 405nm?

The reason I'm asking is because in my experience 405nm is different from what most other people would tell me.
First of all, I see 405nm as more blue than violet, definitely. Also it's a very dirty and bleach color to me, compared to any other wavelength I've seen. The beam is also different from the dot in both color and brightness. The dot is much more "dirty and bleach" than the beam, and much weaker.
Of course the color can't be displayed correctly at a computer screen, but I've tried to draw what I mean to make it clearer to you:
Click to expand...

Violet. And by violet I mean a color that roughly corresponds to #8000FF which is halfway in between blue #0000FF and magenta #FF00FF. I don't think a computer monitor can accurately represent the violet in 405nm but to me when I think 405nm the color I associate it with is the color in between blue and magenta.

This is usually how I think of colors.

Primary Red, Green and Blue

Secondary: Yellow, Magenta and Cyan

Tertiary (I don't have the best names for some of these):

Orange (255 red, 128 green, 0 blue)
Rose (255 red, 0 green, 128 blue)
Violet (128 red, 0 green, 255 blue)
Azure (0 red, 128 green, 255 blue)
Spring Green (0 red, 255 green, 128 blue)
Chartreuse (128 red, 255 green, 0 blue)
 
C

catman

0
Joined
Mar 28, 2013
Messages
68
Points
0
For me it's purple but a kind of purple that I've never seen before. Also it always looks unfocused. If I point it at certain white materials it looks like a perfectly focused blue dot.
 
Sigurthr

Sigurthr

0
Joined
Dec 11, 2011
Messages
4,364
Points
83
I know you're new so I won't give you the third degree, but just so you know most members don't like someone posting in a thread several years old. I was once in your shoes and I didn't know either so here's your friendly heads up =).

That being said, 405 is unfocused looking because your eye lenses are centered around focusing in green/yellow so anything very far from that won't focus properly. If you are able to see 780nm (I can) it looks fuzzy as well.
 
You must log in or register to reply here.




Top