Fresh Out of the Envelope Impressions . . . 100mW Green Laser (wavelength 532nm)

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Foy
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Fresh Out of the Envelope Impressions . . . 100mW Green Laser (wavelength 532nm)

I know this is not a laser light board but if you'll indulge me . . .

This is a 4 second exposure so, pardon the image quality.

Look at that damn thing!  $18 . . . are you kidding me?  Kudos to Lang for steering me toward this.

This next shot is at 3:00 in the afternoon and even then you can see the beam.

I'm going to have to hang out on a laser forum so I don't butcher the upcoming review.  Fun as hell but be careful; you don't get a second chance if this guy hits your eyes.

Foy

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Tas62
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I've pulled the curtains closed just to look at the photos.

Foy
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Can't have lasers in OZ?

Foy

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Langcjl
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That's a nice shot. Thats a great toy

Piers said " ....but who wants enough light, when you have the option for far too much "

Foy
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You think it's really 100mW?

Foy

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Tas62
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Flashlight Foy wrote:

Can't have lasers in OZ?

Foy

Nope......nothing >5mw. Idiots keep blasting them at airliners on landing approach (last incident ~2 weeks ago in Sydney).

Foy
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I live near an airport (McCarran) and an appraoch brings arriving flights over my house.  It's far enough away that they can barely be heard but I'm afraid to point it in the sky.

stayoutofjailFoy

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Langcjl
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I think it is right in there between 50 and 100mW. Did you see my balloon video? http://www.youtube.com/watch?v=3fla0a7rjXE

Piers said " ....but who wants enough light, when you have the option for far too much "

Foy
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What's that other laser you have - the one that didn't pop the baloon.

Foy

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Langcjl
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That's the $7 DX branded one. It will pop a balloon but takes a few seconds. That one is probably 15 to 20mW. That little laser is so cool. That's what got me going.

Piers said " ....but who wants enough light, when you have the option for far too much "

33696933
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looks to be atleast 50mw and I believe the limit ins oz is 1mw not 5mw . crazy

Dave
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http://www.bestofferbuy.com/ultrafire-c1-200mw-flashlight-shape-green-laser-200mw-532nm-p-68957.html

I found this for $32 in february w/battety. Not only does it emit a nice green beam it will also light your cigar.

Some of the e-bay $5 lasers will pop ballons if they don't check out YouTube " laser potmod"

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I'm new to lasers so it may be that I'm easy to impress and I would love 200 mW.  For a beginer like me, this seems like a lotta laser for $18.  Actually, that 200mW unit is a lotta laser for $32.

lottaFoy

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Foy
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Another thing; either the included Ultra Fire CR123 was weak or this thing sucks down a battery real fast.

Foy

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Langcjl
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Mine came with an ultrafire unprotected 16340. Once I gave it a charge it has lasted a lot longer. My son wore the battery down all the way before I got home from work and had a chance to charge it. Didn't wreck it though. It still works fine.

Piers said " ....but who wants enough light, when you have the option for far too much "

Foy
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Oh man . . . !  Greg, you saved my life.  I thought that was just a primary.  Had to go fish out of the garbage!!  Also, I put the damn thing in backwards too.  When it didn't come on, I remembered what you said.

LangsgotmybackFoy

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Langcjl
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You were suffering from mail goodness overload today. It happens, you get all giddy like that.

Piers said " ....but who wants enough light, when you have the option for far too much "

jamesearljonesi...
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Hey Foy/Lang i was curious if youve opened it up and if you know if the insides is just like a p60 dropin. as in will it drop into a SF host. 

03/04/16 

 

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Foy... where did you get your new toy? 

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Green DPSS lasers are very ineffecient. Mine draws 2.2amps for the 2W IR diode and puts out only >400mW. My 200mw drew about .7amps

Piers
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Hehe, nearly a bad mistake there Foy Smile

 

I'm still trying to figure out how to make my Duraloops look less disposable.

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I swear . . . I guess I've never seen an Ultra Fire 16340 before.

Nutz - GadgetTown, here's the link: http://www.gadgettown.com/50mW-532nm-Flashlight-Style-Green-Laser-Pointer-Pen-with-Clip-and-Free-Battery-HKE03431.html 

james - After a quick look it looks like a press fit.  I'll take some close ups soon.  Wife had me hopping with a semi-large back yard chore this weekend.

33969633 - I could use some of your knowledge. (I'm even less laser savvy than I am with flashlights) What is DPSS and why is it less effecient.  I'm planning a review and don't want to butcher the facts.

cantbelieveIalmostthrewitawayFoy

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33696933
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How a green laser pointer works

As you can see, it's not a straightforward process, as is the case with red, blue, violet laser pointers. (common wavelengths are 650nm for red , 445nm for blue , and 405nm for purple)

 

In a green laser pointer, 808nm laser radiation from a pump diode is used to generate 1064nm light in the gain medium (in this case, the YAG or YVO4). This 1064nm light is then doubled by the KTP to from 532nm light. There's no colour filters involved, it's a laser-pumped laser. 

 

To achieve even a low-power output requires large amounts of 808nm IR pump radiation. For example, the pump diodes found in a 50mW green laser pointer will often average around 300mW IR output.

 

The human eye isn't very sensitive to 808nm IR- and it's barely visible. It takes several watts of 808nm to achieve visual parity with 1mW of 650nm. As a result, what is mistaken as a dim red light is easily capable of causing instantaneous eye damage.

 

Although this diagram shows an IR filter (which would cut out all of the infrared from the green beam), most cheap pointers and modules lack this IR filter.

The most common causes of this type of pointer failure are either driver/pump diode failure, or crystal set failure. 

Dave
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Something kinda fun to try is... Take the head off and then remove the focusing barrel (should just unscrew) and your laser will have a green beam similar to a cree zoomie at full zoom. Works well with a gun mount for coyote and other preditor hunting applications. You won't be able to lite matches or pop ballons with it this way but it's easy to change it back to the way it was.

My C1 is just begging for a Foy-bezel makeover.

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Dave , you could still burn with it just find the focused spot which should be near where the light comes out, burn damn fast too.

Foy
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Well, that clears that up.  (sigh)

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Foy
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Lang took down the bezel on his laser (same exact model as mine) and it looks great.

Foy

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Don wrote:

"But as I said long ago, you are more likely to be killed by a dead fish dropped by a seagull in the Sahara Desert than by a lithium ion

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I think they eat up batteries pretty hard ..my friend killed a real trustfire flame with his ...but it's way illegal  strong and pricey at $200 

       καὶ τὸ φῶς ἐν τῇ σκοτίᾳ φαίνει καὶ ἡ σκοτία αὐτὸ οὐ κατέλαβεν

                            

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:bigsmile:

 

Piers said " ....but who wants enough light, when you have the option for far too much "

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Some time ago i was addicted to laser and i start reading everything about it. I also made a laser with an old DVD writer and a homemade circuit board. The problem is that now is forbidden to import laser in italy...

You can burn things and pop ballon also with 5 mw green laser (if it have not IR filter) but it's IR radiation that make the work and it's also quite dangerous because human eyse can't see infrared... With a camera with night-shot mode you can clearly see the IR beam.

If you want a quality laser there is wicked laser that sell good products.

"There are always new jobs, women, and apartments......there is only ONE BLF." - Chicago X (27/03/2012)

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