FS: >110mW PHR, >140mW 4x & >170mW 6x Blu-Rays

[lazerguy]

Re: FS: >80mW Blu-Rays, two models: $185

Didn't know that about sunglasses. :-? Well it's great, you could then use inexpensive sun glasses as lazer goggles when performing burning with a blu-ray!

 

[Timbojames]

Re: FS: >80mW Blu-Rays, two models: $185

i learn new things every day, great
That would be "nice", a commercial laser that causes cancer

 

[lazerguy]

Re: FS: >80mW Blu-Rays, two models: $185

Well, that is probably the upcoming cruel weapon to be invented, a hi power UV laser used in war.

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

Didn't know that about sunglasses. :-? Well it's great, you could then use inexpensive sun glasses as lazer goggles when performing burning with a blu-ray!

They can't protect perfectly from a direct hit.. A direct hit would be like a <1mW laser probably..

You should check them first, by shining the laser through them onto a white paper..



The beam becomes invisible with them, and the spot loses it's glare.. You can focus better. And you see flourescence without the 405nm! It's very interesting.

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

Well, that is probably the upcoming cruel weapon to be invented, a hi power UV laser used in war.

Keep in mind, that a high power UV laser wouldn't cause cancer as much as it would burn you.

The problem is long term exposure of a large skin surface...

 

[scopeguy20]

Re: FS: >80mW Blu-Rays, two models: $185

I got some cheap, ($1.50), medium yellow color sunglasses at the store, and put the bluray through them into a florescent paper, and the dot was nearly gone! These block 96% of the 405 nm of my 26 mW Milos laser per test on Kenom Thermal Laser Power Meter. With these on, focusing is a piece of cake!

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

Finally a laser with cheap protection..

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

I decided to make some pics outside... No fog no smoke.

This is a part of my RGBR fleet.. A >60mW green, a 200mW red and the 87mW Blu Ray..

Interestingly enough, they look as if they all had the same brightness in the picture. In reality, the 200mW red is a tiny bit brighter when pointed against me, but the Blu Ray is MUCH brighter, when pointed away from me. The atmosphere refracts blue much better.

I've never seen a red pointed away look as bright as the Blu! It looks very solid, but kinda ghostly.

 

[lazerguy]

Re: FS: >80mW Blu-Rays, two models: $185

Great pics, I love the three colors together! But what do you mean, the BR beam looks "ghostly"? Do you mean that it doesn't really have a color and looks more gray? I have heard that about other people's BR:s.

 

[laser_freak]

Re: FS: >80mW Blu-Rays, two models: $185

Great pics, I love the three colors together! But what do you mean, the BR beam looks "ghostly"? Do you mean that it doesn't really have a color and looks more gray? I have heard that about other people's BR:s.

BR's beams to tend to look very odd colors. Some of my friends think it looks yellow, while others think it looks grey. I personally think it looks grey. Lower powered blue (473nm) lasers also seem to look yellow or grey. For me, it's only when I point a BR or 473 directly at myself that I see the true color. Then again, I've never seen high powered BRs or 473s, so I can't say what thoughs look like.

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

With dark accustomed eyes it does indeed look almost gray when pointed towards me.. But away from me it looks beautifully violet. And surprisingly visible!

When i say ghostly, i mean the beam can look very solid in the air outside at night or even inside during the day with some smoke.. But while it is solid, it looks strange. I don't know how to describe it. It does have a color in both cases. At least for me.. But it's ghostly..

I'm surprised at how impressive it looks during the day (or lights on) with smoke.


You're gonna have to see it for yourself. It's a phantom beam...



I really need to make some pics with a better camera!

 

[daguin]

Re: FS: >80mW Blu-Rays, two models: $185

With dark accustomed eyes it does indeed look gray when pointed towards me.. But away from me it looks beautifully violet.

When i say ghostly, i mean the beam can look very solid in the air outside at night or even inside during the day with some smoke.. But while it is solid, it looks strange. I don't know how to describe it. It does have a color in both cases.

I'm surprised at how impressive it looks during the day with smoke.


You're gonna have to see it for yourself. It's a phantom beam...

405nm is so close to the edge of our eye's ability to see it that the eye has trouble focusing on it. I think "ghostly" is a good descriptor.

Peace,
dave

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

405nm is so close to the edge of our eye's ability to see it that the eye has trouble focusing on it. I think "ghostly" is a good descriptor.

Exactly!

The eyes get very confused.. When i first saw this powerful beam i thought i was halucinating.. I saw it in several places at once.. I think i got used to it tho.


And looking at the beam can cause a violet after image! Not something i ever noticed with red...

 

[laser_freak]

Re: FS: >80mW Blu-Rays, two models: $185

405nm is so close to the edge of our eye's ability to see it that the eye has trouble focusing on it.  I think "ghostly" is a good descriptor.

Peace,
dave

The edge of BRs look blury to me.

 

[GamerBR]

Re: FS: >80mW Blu-Rays, two models: $185

How much would be shipping to Brazil for the gray one?

;D cancer, yeah...


Like lazerguy said, only lasers, that USE an IR laser diode can emit IR. Diodes only emit one wavelength.
But green lasers use an IR diode to pump crystals, which then convert the wavelength into 532nm in two steps. Some IR is then left over, which is why IR filters are a good idea there. There are also blue DPSS lasers which need filters even more, because they use higher power IR pumps due to lower crystal efficiency.

But a diode laser CAN NOT emit IR unless it uses an IR diode.


What you should be worried about is getting the violet beam (or unexpected reflection) into your eye. Luckily, these are so close to UV, that yellow glasses or sunglasses block them.

I made a measurement through some sunglasses, that are not even dark, and while i saw a faint dot, i couldn't measure it's power.. It was under 1mW.

I know tests are necessary to determine if it's blocking ok or not,but what do you think about this goggles?

With it on things look brown/dark yellow,found it on oakley website and lens are described as "Black Iridium",it also blocks UV light.

 

[IgorT]

Re: FS: >80mW Blu-Rays, two models: $185

Well, they look orange.. But i don't know. If they block UV, they could work very well. You should still test them by shining a Blu Ray through them on a white piece of paper. If the dot is very dim, they can protect against reflections and the glare (from burning). A direct hit would probably still leave an after image, but your eye would be saved...


The goggles that block the most are the ones i would least expect it from - nearly transparent sunglasses (because of UV filter)... There are some glasses called Blue Blockers (orange) which also work well. The yellow protection (shooting?) glasses, which you can get for loose change are also good.


Dark sunglasses would actually work a tiny bit less well than nearly transparent UV filtered ones tho. Even tho the UV filter (not the fact that they are dark) would block most of the 405nm, your pupils would get dilated and let more or the residual 405nm through....