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 02-22-2010, 10:50 PM #33
Asherz's Avatar
Class 3R Laser
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Asherz Asherz is offline
Class 3R Laser
Asherz's Avatar
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Default Re: Pink Laser 500mW

Quote:
Originally Posted by Nanolaser View Post
Can't be build on this planet due to gravity related manufacturing restrictions. You will have to wait untill space travel becomes more cost effective so you could setup a lab in a antigravity environment
Nasa already have anti-gravity chambers...?

Lasers are a form of light, and since black is simply absence of light it there for has no wavelength, there for it can't have a constant phase difference and there for isn't coherent thus it could never be a laser.


__________________
- 150mW Ehgemus Mini-RPL Review -

Collection of the Best Free games

445nm Custom build@1A - Old style Dorcy Jr. + purple anodized heatsink
Dino Direct 50mW Flashlight unit
DX True green 100mW
O-like module @ 171mW in Mini-RPL host
Single-line Argon @ 52mW 488nm Peak
PHR-803T @ 110mA in Jayrob MXDL host
DX Red 660nm 200mW
Dragon lasers 190nm-548nm Safety Goggles
Asherz is offline   Reply With Quote







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







Old 02-22-2010, 11:03 PM #34
mfo mfo is offline
Banned
 
Join Date: Jul 2009
Location: NYC
Posts: 3,403
Rep Power: 0
mfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these parts
mfo mfo is offline
Banned
 
Join Date: Jul 2009
Location: NYC
Posts: 3,403
Rep Power: 0
mfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these partsmfo is infamous around these parts
Default Re: Pink Laser 500mW

Quote:
Originally Posted by Nanolaser View Post
Can't be build on this planet due to gravity related manufacturing restrictions. You will have to wait untill space travel becomes more cost effective so you could setup a lab in a antigravity environment
Are you serious, or do you just really not know what you're talking about?...
mfo is offline   Reply With Quote
Old 02-22-2010, 11:04 PM #35
Pilgor's Avatar
Class 2M Laser
 
Join Date: Oct 2009
Location: Timmins, Ontario, Canada
Posts: 572
Rep Power: 36
Pilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond repute
Pilgor Pilgor is offline
Class 2M Laser
Pilgor's Avatar
 
Join Date: Oct 2009
Location: Timmins, Ontario, Canada
Posts: 572
Rep Power: 36
Pilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond reputePilgor has a reputation beyond repute
Default Re: Pink Laser 500mW

black lasers will be invented when Canada gets out of its deficit which is NEVER GOING TO HAPPEN
Pilgor is offline   Reply With Quote
Old 02-23-2010, 12:35 AM #36
cmak's Avatar
Class 2M Laser
 
Join Date: Jan 2010
Location: my comfy padded cell *one eye wanders*
Posts: 727
Rep Power: 18
cmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to behold
Send a message via Skype™ to cmak
cmak cmak is offline
Class 2M Laser
cmak's Avatar
 
Join Date: Jan 2010
Location: my comfy padded cell *one eye wanders*
Posts: 727
Rep Power: 18
cmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to behold
Send a message via Skype™ to cmak
Cool Re: Pink Laser 500mW

Quote:
Originally Posted by mfo View Post
K, you go ahead and build one then. Get back to me with pics when it's finished.
link
Quote:
Originally Posted by Pilgor View Post
black lasers will be invented when Canada gets out of its deficit which is NEVER GOING TO HAPPEN
how relevant
Quote:
Originally Posted by mfo View Post
Are you serious, or do you just really not know what you're talking about?...
I'm guessing the latter

peace & thanks
-cmak
__________________
685nm MS-V4 (in progress)
<638nm MS-V4 (in progress)
589nm JL PL-E Pro >100mW (soon)
561nm (someday)
532nm Sky HL "300mW" (in progress)
<515nm Sky HL "30mW" (in progress)
>460nm Sky HL "100mW" (in progress)
>405nm FP 12X, heavy on the trit (soon)
Many JL PL-E Pros next (put me down for the first powerful 589s &473s in that sweet host)
WFTM (someday)

cmak is offline   Reply With Quote
Old 02-23-2010, 02:07 AM #37
StridAst's Avatar
Class 2 Laser
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
StridAst StridAst is offline
Class 2 Laser
StridAst's Avatar
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
Default Re: Pink Laser 500mW

Nonono, I get what he is saying! a black laser IS possible. You just need to modulate the phase variance with an inverse tachyon pulse to modulate the inverse wavelength, and I'm sure the word "subspace" is in there somewhere! and poof you have a black laser! hmm, perhaps we need a new acronym for it. perhaps "UNlight Amplification by the Non-Stimulated Wierd Emission of Radiation" or "unanwser" I'm quite certain once it's built you willl have all kinds of "unanswer"ed questions of course. However I'm also quite certain it will be used on all kinds of objects, such as anti-matches and negative balloons, resulting in all kinds of "unanswer"ed things. But hey, I hate it when the solution to a problem just leaves you with more questions......... such as how can it be a laser then when its an "unanswer"
__________________
StridAst

90-100mW green module in modified Dorcy
PHR @ 120mA
GGW @ 200mA in a labby style "wax pen"
12X 545mW in a sterling silver host.

445 in a steampunk gun setting @ 1600ma
StridAst is offline   Reply With Quote
Old 02-23-2010, 02:43 AM #38
bobhaha's Avatar
Class 3B Laser
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
bobhaha bobhaha is offline
Class 3B Laser
bobhaha's Avatar
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
Default Re: Pink Laser 500mW

How could it possibly be impossible? In a very specific and controlled situation, a black laser is possible. There is an effect called constructive interference which in essence can be any colour but in the right frequency could be considered as white light, due to superposition of light waves. On the other hand there is an effect called deconstructive interference which in essence could be a black laser, due to canceling of light waves.

Now the exact wavelength of light reflected by an object must be know... Thus if the appropriate wavelength is produced by the laser it will effectively cancel the reflected light resulting in absence of light.. which is percieved as the colour black. Thus proving that a black laser is possible... but only in a very controlled manner. If we could find a way to modulate and control the exact wavelenght of the laser, a receptor could calculate the reflected wavelength then emit the beam what will result in deconstructive interference... but the technology is no were near up to par to do anything like that.

Here is a perfect example of what I mean...



Soo yeah.. -Adrian
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

Check out my How to Build a Selectable Dummy Load Thread!

Last edited by bobhaha; 02-23-2010 at 02:48 AM.
bobhaha is offline   Reply With Quote
Old 02-23-2010, 03:46 AM #39
StridAst's Avatar
Class 2 Laser
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
StridAst StridAst is offline
Class 2 Laser
StridAst's Avatar
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
Default Re: Pink Laser 500mW

lol, you forget, only making the light of the laser invisible wouldn't actually make it look black......... you can't see the beam on a CO2 laser, but it's hardly black. Also, the light isn't absent, the energy is still there. I figured if anyone was going to go physics there would be comments on negative refractive index (which is possible, and has been done already). As a side note, Constructive interference, as well as deconstructive interference are both in play when you look at a precious opal. There are billions of tiny spheres of silica. They can be any size. The conditions that precipitate them are uniform over small areas, resulting in spheres clustered together of similar size. spheres that are 266nm in diameter will reflex almost perfectly 532nm light as an example. as some of the waves bounce off the front of the sphere, and others will reflect back up off the back. as the 266 + 266 = 532, the wavelengths will line up again and you have the constructive interference. (simple Bragg reflection) However 266nm spheres will also interfere with 1064 destructively. as putting the light from the back halfway out of sync with the light reflecting off the front puts it perfectly lined up for deconstructive interference. Now there are many many MANY spheres, with random sizes. However you DON'T see black flecks of "dark light" from say sphere groups of 150nm. (which would effect 600nm light the same as 266 would effect 1064....) or any other size sphere for that matter. Remember, the concept is a black colored laser, NOT an invisible one....

Incidentally. Opal can be synthesized to any nm sphere size in a lab. So it is possible to create an opal with only one color it will reflect, as well as tailor it for perfect constructive interference or perfect deconstructive interference.
__________________
StridAst

90-100mW green module in modified Dorcy
PHR @ 120mA
GGW @ 200mA in a labby style "wax pen"
12X 545mW in a sterling silver host.

445 in a steampunk gun setting @ 1600ma

Last edited by StridAst; 02-23-2010 at 03:49 AM.
StridAst is offline   Reply With Quote
Old 02-23-2010, 04:04 AM #40
bobhaha's Avatar
Class 3B Laser
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
bobhaha bobhaha is offline
Class 3B Laser
bobhaha's Avatar
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
Default Re: Pink Laser 500mW

Quote:
Originally Posted by StridAst View Post
lol, you forget, only making the light of the laser invisible wouldn't actually make it look black......... you can't see the beam on a CO2 laser, but it's hardly black. Also, the light isn't absent, the energy is still there. I figured if anyone was going to go physics there would be comments on negative refractive index (which is possible, and has been done already). As a side note, Constructive interference, as well as deconstructive interference are both in play when you look at a precious opal. There are billions of tiny spheres of silica. They can be any size. The conditions that precipitate them are uniform over small areas, resulting in spheres clustered together of similar size. spheres that are 266nm in diameter will reflex almost perfectly 532nm light as an example. as some of the waves bounce off the front of the sphere, and others will reflect back up off the back. as the 266 + 266 = 532, the wavelengths will line up again and you have the constructive interference. (simple Bragg reflection) However 266nm spheres will also interfere with 1064 destructively. as putting the light from the back halfway out of sync with the light reflecting off the front puts it perfectly lined up for deconstructive interference. Now there are many many MANY spheres, with random sizes. However you DON'T see black flecks of "dark light" from say sphere groups of 150nm. (which would effect 600nm light the same as 266 would effect 1064....) or any other size sphere for that matter. Remember, the concept is a black colored laser, NOT an invisible one....

Incidentally. Opal can be synthesized to any nm sphere size in a lab. So it is possible to create an opal with only one color it will reflect, as well as tailor it for perfect constructive interference or perfect deconstructive interference.
Sorry but that is incorrect... deconstructive interference is the cancellation of light wave (or any waves for that matter). A co2 laser operates in the IR range.. the range where the human eyes can not perceive. IR is a type of light... it is not absent, it is just not picked up by the human eye.

In the situation with the opal.. other factors such as lighting conditions, angle of incidence and angle of viewing all affect the colour being perceived and the colour reflected. This is no where near a perfect controlled situation I was talking about.
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

Check out my How to Build a Selectable Dummy Load Thread!
bobhaha is offline   Reply With Quote
Old 02-23-2010, 04:28 AM #41
StridAst's Avatar
Class 2 Laser
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
StridAst StridAst is offline
Class 2 Laser
StridAst's Avatar
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
Default Re: Pink Laser 500mW

My point remains though, Deconstructive interference wouldn't give you a black beam. Nor would it eliminate the energy in the light, it would simply mask it's presence. Yes you can't see CO2 because of the wavelength, but you are ignoring my point, which is that your deconstructive interference wouldn't make the laser look black. but simply render it invisible to the human eye.

and you are correct that viewing angle, and angle of incidence does change colors in opal. I did simplify it a bit in the last post. However lighting conditions do NOT change the inherent colors, except where the light change is simply changing the angle of incidence. (change the light source angle and you are effectively changing the viewing angle, change the light source type but keep angle of incidence and viewing the same, and the only change would be weaker colors if there is less of this or that wavelength present, or stronger colors if there is more, but the actual COLOR wouldn't change, just the brightness) I've cut somewhere over 200 opals over the past decade or so. It's one of my favorite gemstones. The principal is still the same, the color play in opal is still based entirely off light wave interference. Any way you spin it the random light wave interference in opal has as much chance to deconstructively interfere as constructively, yet you DON'T see black color play in opal. There is black opal, but it's opal with a black base color instead of white or clear, NOT black play of color. (keep in mind the color of the stone and the color of the light play in the stone are two completely separate things)

EDIT: incidentally. the 1/4 of the light to be interfered with thickness thing is also used in SOME AR coatings. look up some info sometime on "quarter-wave coatings" Not all AR coatings use this principal, as the thickness only gives close to perfect deconstructive interference at one angle, and the main point of AR coatings is to get refractive indexes lined up right for maximum light transmission, the quarter-wave coatings are simply done to make certain any back reflection that DOES happen will be interfered with. *shrug* the concept still doesn't make a black laser beam. You won't be shining a black laser in broad daylight watching the darkness pop balloons and light matches anytime soon
__________________
StridAst

90-100mW green module in modified Dorcy
PHR @ 120mA
GGW @ 200mA in a labby style "wax pen"
12X 545mW in a sterling silver host.

445 in a steampunk gun setting @ 1600ma

Last edited by StridAst; 02-23-2010 at 04:47 AM.
StridAst is offline   Reply With Quote
Old 02-23-2010, 06:20 AM #42
cmak's Avatar
Class 2M Laser
 
Join Date: Jan 2010
Location: my comfy padded cell *one eye wanders*
Posts: 727
Rep Power: 18
cmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to behold
Send a message via Skype™ to cmak
cmak cmak is offline
Class 2M Laser
cmak's Avatar
 
Join Date: Jan 2010
Location: my comfy padded cell *one eye wanders*
Posts: 727
Rep Power: 18
cmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to beholdcmak is a splendid one to behold
Send a message via Skype™ to cmak
Default Re: Pink Laser 500mW

__________________
685nm MS-V4 (in progress)
<638nm MS-V4 (in progress)
589nm JL PL-E Pro >100mW (soon)
561nm (someday)
532nm Sky HL "300mW" (in progress)
<515nm Sky HL "30mW" (in progress)
>460nm Sky HL "100mW" (in progress)
>405nm FP 12X, heavy on the trit (soon)
Many JL PL-E Pros next (put me down for the first powerful 589s &473s in that sweet host)
WFTM (someday)

cmak is offline   Reply With Quote
Old 02-23-2010, 08:35 AM #43
bobhaha's Avatar
Class 3B Laser
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
bobhaha bobhaha is offline
Class 3B Laser
bobhaha's Avatar
 
Join Date: May 2009
Location: Sydney, Australia
Posts: 3,256
Rep Power: 360
bobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond reputebobhaha has a reputation beyond repute
Default Re: Pink Laser 500mW

Ok... but using your logic, you are effectively saying that if I theoretically lined up the crystalline structure of an opal so that it perfectly creates deconstructive interference (ignoring the constructive) that it will become see through... or that it will radiate energy.

This is not the case. The energy transformation in deconstructive interference is in the form of photons. These are exchange particles that carry energy as you know. A photon does not create light... it merely energies atoms, be it air, iron, wood etc. This energy takes an electron and moves it up through the orbitals and if you know any thing about quantum physics you would know, that the dropping of electrons from a higher orbital to a lower one creates light at a specif wavelength.

So in theory, if you had a wave that is perfectly out of sync with a reflected wave, why would you not be able to match a +1 with a -1 to make a 0 (ie no light) spot?

I would also like to point out there is no conservation laws broken... and I will explain why. Like I said before photons are exchange particles... and a laser produces photons with a given energy, when the photons hit an object, as stated before, it excites the atom and releases light...

ok now! If there is a reflected wavelength of +1 that means the light that is reflected has a value of one. Now if we have a laser emit photons that have the exact energy to excite the atoms in air, wood etc.. that the value will equal -1 the two light waves will cancel. Therefore no energy is lost or gained because it is used up during the heightening of potential energy of the electron and absorbed by other atoms.
__________________
Lasers!
10.6um - >40W CO2 Laser - 25W RF excited CO2 Laser*
685nm - Being built!
660nm - 250mW LOC PowerLight B50 Host - 100mW WL pulsar
635nm - 430mW C6 Host*
632.8nm - Red He-Ne laser ~1mW
593.5nm - Regal 5
542.8nm - Green He-Ne laser ~2.5mW
532nm - 620mW+ lasersman Firedragon III* - 100mW PGL-III-M from JETLASERS* - 70mW Rayfoss Host*
~~~ - 175mW Rayfoss Host - <5mW WL Core - 55mW DinoDirect review laser*

488nm - On the hoist
473nm - 2x CNI lab lasers ~40mW
445nm - 3W Big Boyz Laser - >1.1W Cree C6 Host - 650mW WL Arctic
405nm - 65mW GLP-405 Aquarius host - 160mW 6x Blu-ray MXDL Host
Total: 71,868.5 mW

Goggles!
Laser glow LSG-532-Sport protective eye goggles OD 7+ 190-532nm HIGHLY RECOMMENDED!!
Jetlasers wrap around 190-540nm OD4+ goggles*
Eagle Pair Red OD4+ goggles
Scopeguy20 Blublockers for 405nm lasers!

* indicates a review has been done, on this item.

Check out my How to Build a Selectable Dummy Load Thread!
bobhaha is offline   Reply With Quote
Old 02-23-2010, 03:48 PM #44
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Pink Laser 500mW

play this.

www.exploratorium.edu/exhibits/mix_n_match/

it will help everybody who doesn't understand that physical colors mix differently than light colors
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 02-23-2010, 04:05 PM #45
StridAst's Avatar
Class 2 Laser
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
StridAst StridAst is offline
Class 2 Laser
StridAst's Avatar
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
Default Re: Pink Laser 500mW

Quote:
So in theory, if you had a wave that is perfectly out of sync with a reflected wave, why would you not be able to match a +1 with a -1 to make a 0 (ie no light) spot?
Because all other light waves can still pass through the region unimpeded. The end result being the canceled out light waves are no longer visible. But this phenomenon does NOT block any other light. any method of creating perfect deconstructive interference would simply make your laser beam vanish, NOT turn black.

Quote:
I would also like to point out there is no conservation laws broken...
Quite correct. No argument here.

Quote:
Ok... but using your logic, you are effectively saying that if I theoretically lined up the crystalline structure of an opal so that it perfectly creates deconstructive interference (ignoring the constructive) that it will become see through... or that it will radiate energy.
no no no. I am trying to point out that the color in opal is caused by essentially random conditions. Therefore there will be as much constructive as deconstructive interference. The stone can do both, and normally does both. It's simply a natural structure that creates light interference patterns, and we perceive that as color when viewed in white light. Given this simple fact, if deconstructive interference could create the color black to our eyes, you would see black flecks of color in the opal as well as all the normal color play we do see. Given that there ARE no black flecks of color play in opal, then light interference DOES NOT CREATE THE COLOR BLACK. Other light can STILL pass through an interfered light wave without effect. essentially a -1 +1 state = 0 ass you stated. However add in another +1 state and you get (-1 +1) +x = x where x is the value of any other light passing through. To get the color black you would need (-1 +1) + x = 0 when x itself can not = 0.

To get the effect which nanolaser was talking about, which you were defending....

Quote:
but not impossible Imagine,... it's a sunny day and sudenly you see a black laser beam coming from the other side of the horizon.
...you would need some method of perfectly canceling out EVERY light wave that passed through the laser beam, which is impossible with deconstructive interference. You would need light with wavelengths that are not constant.

Your argument seems to be stating that when you destructively interfere with light, you create the color black The result is simply that the light is no longer visible. However, just like ocean waves passing through each other temporarily, if the light waves could be separated again, you would then be able to see them again. As you stated, the light isn't gone, the energy isn't gone, the photons themselves are not gone, they are simply a +1 and -1 state that overlaps to appear as a 0 state. but separate those +1 and -1 states again, and you no longer have a 0 state, but two separate +1 and -1 states. Given that the energy is still there, but you can not see it, I think the word invisible applies quite well, don't you?

(there is an oversimplification the conditions that create the color play in opal are not perfectly random, as there ARE conditions that effect the sphere size in opal, and due to such, the color violet is the most common color and red the least common, but this is due to the sphere size is more rare the larger it gets, due to needing longer stability of the initial conditions to form, but this also means that deconstructive interference will be more common then constructive overall in opals, as those spheres are smaller then ones that will produce violet)
__________________
StridAst

90-100mW green module in modified Dorcy
PHR @ 120mA
GGW @ 200mA in a labby style "wax pen"
12X 545mW in a sterling silver host.

445 in a steampunk gun setting @ 1600ma
StridAst is offline   Reply With Quote
Old 02-23-2010, 04:19 PM #46
chipdouglas's Avatar
Class 3B Laser
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
chipdouglas chipdouglas is offline
Class 3B Laser
chipdouglas's Avatar
 
Join Date: Dec 2008
Location: Riverside, California
Posts: 4,011
Rep Power: 347
chipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond reputechipdouglas has a reputation beyond repute
Send a message via Yahoo to chipdouglas
Default Re: Pink Laser 500mW

i haven't bothered reading the whole thread but why are people arguing over the making black light (not a blacklight)
__________________
IN A CONSTANT STATE OF PICNIC

I AM THE STATUS QUO

ARE YOU A NEW MEMBER, OR EVEN MORE, ARE YOU NEW TO ONLINE FORUMS... READ THIS
LASER POINTER FORUM ETIQUETTE


for pot modding facts click below

http://laserpointerforums.com/f51/pot-modding-faqs-40510.html
chipdouglas is offline   Reply With Quote
Old 02-23-2010, 04:28 PM #47
StridAst's Avatar
Class 2 Laser
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
StridAst StridAst is offline
Class 2 Laser
StridAst's Avatar
 
Join Date: Oct 2009
Location: Utah
Posts: 364
Rep Power: 31
StridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond reputeStridAst has a reputation beyond repute
Default Re: Pink Laser 500mW

Lol because it's fun of course!!!!!
__________________
StridAst

90-100mW green module in modified Dorcy
PHR @ 120mA
GGW @ 200mA in a labby style "wax pen"
12X 545mW in a sterling silver host.

445 in a steampunk gun setting @ 1600ma
StridAst is offline   Reply With Quote
Old 02-23-2010, 04:43 PM #48
Asherz's Avatar
Class 3R Laser
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Asherz Asherz is offline
Class 3R Laser
Asherz's Avatar
 
Join Date: Jan 2009
Location: United Kingdom
Posts: 1,627
Rep Power: 64
Asherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond reputeAsherz has a reputation beyond repute
Default Re: Pink Laser 500mW

I was thinking about this, and if you managed somehow in a room, to have a very large laser beam, particularly bright shoot out, but in the middle have a small black spot, this basically would create a shadow on the laser light and as long as the divergence of the laser is really small, the shadow should stay parrelel all the way to the end thus creating a *black laser*, as long it was done in complete darkness, with the beam exiting and being hid so it wouldn't illuminate anything.

here:



makes sense in my head with a few key flaws lol.
__________________
- 150mW Ehgemus Mini-RPL Review -

Collection of the Best Free games

445nm Custom build@1A - Old style Dorcy Jr. + purple anodized heatsink
Dino Direct 50mW Flashlight unit
DX True green 100mW
O-like module @ 171mW in Mini-RPL host
Single-line Argon @ 52mW 488nm Peak
PHR-803T @ 110mA in Jayrob MXDL host
DX Red 660nm 200mW
Dragon lasers 190nm-548nm Safety Goggles
Asherz is offline   Reply With Quote
Reply

Tags
homo laser





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


LinkBacks (?)
LinkBack to this Thread: http://laserpointerforums.com/f40/pink-laser-500mw-41039.html
Posted By For Type Date
?????????2012 This thread Refback 03-25-2012 01:07 PM
?????????2012 This thread Refback 03-25-2012 09:10 AM
Abonnement Adsl Haut débit avec Alice France. Page d'accueil du portail. This thread Refback 06-05-2011 04:28 AM
????????? This thread Refback 03-09-2011 09:11 AM
????????? This thread Refback 02-22-2011 10:36 AM










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 03:54 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