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5.6mm diode extractor from Jeff.

April 26, 2018, 1:05 pm
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Hi Folks a customer brought to my attention and said the 5.6mm diode extractors from Flamingpyro (Jeff) won't fit the new 490 diodes. So I gave it a try mind you I never had to use this tool since I bought it years ago. Well anyway I tried it on these diode 490.495.505,A140,M140 and a PLTB450B and it doesn't fit them either. Does anyone else have this problem with this tool ???

Rich:)
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Future of lasers

April 26, 2018, 2:57 pm
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I have been thinking about the future of lasers. What new lasers do you think will be coming out in the next 10 20 years? I am hoping it won't be diode only I am hoping that gas lasers and DPSS lasers will still be made. I have noticed many new colors being made with diodes . I am not much into direct diode lasers but getting to like them, But I am wondering if they will come out with new technologies more efficient lasers I would like to know your opinions. It is amazing what you can buy now for what a metrologic HENE used to cost.
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Goofin around with the mirrors

April 26, 2018, 4:28 pm
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Just had to!

April 26, 2018, 6:16 pm
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Well, I’ve been behaving myself and haven't spent any money on laser(s) in quite a bit. (Because Sanwu won’t release their RGB) . Yep, I’m blaming it on Sanwu! :crackup: So I had some money burning a hole in my pocket, so when I saw this, I had to break down and pop for one. Got a soft spot for these throwers. Got the light, the battery pack, and the bag and cap. I’ll try and post some pictures and a small review when I get my paws on it. Looks like is all sorts of fun! :drool:

https://youtu.be/LStmsIyGldA

https://m4dm4x.com/blf-gt-by-lumintop/
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New Video Sanwu 90mW 520nm vs. 530nm

April 26, 2018, 8:58 pm
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Sanwu has released a new video comparing 90mW 525nm and 532nm lasers. They may be
Guardians?



Take Care :D

-cd
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Hello from CA!

April 27, 2018, 5:59 am
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Hello, new guy here. Looking for a community to gain some knowledge on lasers.
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some 488, 495, 505nm pics 4/27/18

April 27, 2018, 6:11 am
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Here are a bunch of pics using mainly a 495nm, 505, and 488nm. I tried photographing them at first as a comparison and the accuracy in the colors is pretty accurate. I used the 488 with a fan diffraction grating and mesed around with that for some shots. I then went back to what I originally had set up to photograph. All of the glassware in the pics were set up before I got the 488 and the rainbow pics here are what I originally was going to photograph, the glassware you see with two or three four laser rainbows. I took a some shots, but wanted to do more with the 488, 495 and 505nm so I went back I tried some more using a few prisms and the hematite balls.
Enjoy

first two pics - 473, 488, 495, 505nm

DSC_4078_resize by brucemir, on Flickr



DSC_4086_resize by brucemir, on Flickr

next few - all diffraction grating beams 488nm ;
beam going across pics 495nm



DSC_4095_resize by brucemir, on Flickr



DSC_4098_resize by brucemir, on Flickr


495, 505, 495nm (horizontal beam)
DSC_4101_resize by brucemir, on Flickr



DSC_4105_resize by brucemir, on Flickr



DSC_4112_resize by brucemir, on Flickr


505nm vertical beam
DSC_4114_resize by brucemir, on Flickr


next three vertical beam 488nm
DSC_4116_resize by brucemir, on Flickr



DSC_4117_resize by brucemir, on Flickr



DSC_4118_resize by brucemir, on Flickr



DSC_4122_resize by brucemir, on Flickr



DSC_4123_resize by brucemir, on Flickr



DSC_4124_resize by brucemir, on Flickr



DSC_4127_resize by brucemir, on Flickr



DSC_4131_resize by brucemir, on Flickr



DSC_4132_resize by brucemir, on Flickr



DSC_4135_resize by brucemir, on Flickr


488nm
DSC_4142_resize by brucemir, on Flickr


495, 505, 488nm
DSC_4148_resize by brucemir, on Flickr


495, 488nm
DSC_4151_resize by brucemir, on Flickr


488, 495nm
DSC_4154_resize by brucemir, on Flickr


488, 495nm
DSC_4155_resize by brucemir, on Flickr


495, 505nm
DSC_4157_resize by brucemir, on Flickr


495, 488nm
DSC_4158_resize by brucemir, on Flickr


495, 488, & 505nm across
DSC_4160_resize by brucemir, on Flickr
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Looking for advice on safe laser for jobsite

April 27, 2018, 6:12 am
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I've come to the conclusion I need to get a laser pointer for work. Pointing up above 20 - 30 feet makes it hard to show a coworker what exactly I'm pointing at.

While looking around on this forum at others suggestions for lasers I feel my application is different and would rather ask before I buy so no one gets hurt at work. I will be using a laser on objects that range from wood, metal and concrete that would be 20-30 feet away and maybe stretching it out to 50 feet. I would mostly be indoor using this.

My concern is I see a lot of suggestions for Sanwu 304 lasers. When I look at the specs and info I see they can burn stuff to a degree. So in my work environment would a 100mw bee too much? What output would you guys suggest I look for to stay safe?

Thanks in advance
Mike
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How I made my Avatar

April 27, 2018, 9:05 pm
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A few pics of the setup I used to create my current Avatar. Lasers were set up on my workbench, pointed at some 1st surface mirrors mounted to the wall. Reflected down to 2 polyhedrons comprised of 1st surface mirrors. The 1st set is a triangular prism, with 1 open end 'accepting' the incoming beams, and the other open end butted up against a truncated triangular pyramid. Both sets have the reflective surfaces all pointed inward for obvious reasons :D I wish I had taken more pictures with this setup. Hope you dig 'em!

IMG_4308 by Lewie Wilkinson, on Flickr

IMG_4321 by Lewie Wilkinson, on Flickr

IMG_4313 by Lewie Wilkinson, on Flickr

IMG_4316~2 by Lewie Wilkinson, on Flickr
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Might be a stupid question but,,,

April 28, 2018, 6:08 am
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As the subject states It might be a stupid question,but,,, I saw a 780nm 5mw laser pointer for sale. Why would you want a 780nm pointer? can't see it no power to burn things. what's the point. Can animals see that wavelenght?
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New pen laser 450nm and beamshot at night

April 28, 2018, 10:05 am
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this heatsink was been made by Tomsk:

and these are inside it , i was used boost driver 230mA with diode PLTB450 :

[IMG]]https://farm1.staticflickr.com/907/41718601952_6f106e464f_z.jpg[/IMG]



beam shot

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My new Copper Host made by Tomsk

April 28, 2018, 10:28 am
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Many people asked me about my host laser:
Today i will tell with you about person who make all hosts laser in VietNam. He is a old member on lpf about 9 years ago with nick name Tomsk
This is link of him:
https://www.facebook.com/nguyen.dangloi.1
all my host which i was used for all my build were made from him
egg this one: ~ 35usd


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Laser vs light bulb ?

April 28, 2018, 11:57 am
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Hello everyone,

I was wondering if you could break a light bulb of different kinds (incandescence, led or high pressure sodium) with a powerful enough laser ?

Like a 5w laser might kill a regular led or light bulb isn't it ?

I'm asking here cause I didn't find any videos or informations on this and am curious about light vs light kind of stuff lol :evil:
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B&W tek 473 500mw laser

April 28, 2018, 12:15 pm
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I am getting a B&W Tek 473 laser. Have any of you heard of them? It looks like a nice laser but,,,, you know looks can be deceiving. Any thoughts Thank you all again Tom.
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Finally making a little progress...

April 28, 2018, 4:15 pm
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Finally making a little progress on the TEC cooled '07 I've been wanting to put together. The host will be an old bar code scanner gun. @ 12volts in, with the TEC wired in series with the driver input, diode current is @ 3 amps, output power is about 3.5 watts, and the diode is sitting at 12 degrees C. I need more cooling air before I can push the TEC any harder as it starts losing ground to the diode heat above 3 amps to the diode with the dinky blower shown in the photos. Hot side of the TEC was @ 58C after a half hour run.



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Greetings from WA State

April 28, 2018, 5:55 pm
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Hello:
I'm new on the forum and am eager to learn. A coworker told me about one of the newer laser pointers he had purchased, and that led me to buy one of the DX SD Laser 303s (green). It is advertised as a 200 mW laser, and it is extremely bright. I've only run it for a few seconds at a time, and can see I need to learn more about it before going further. This one didn't come with any laser class listing or warning labels or info. It does have the safety key switch in the tailcap. I would appreciate any advice others may have about this. I'm assuming it is a Class 3B laser for safety purposes.
Thank You
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New build laser NUBM05 boost 2.5A

April 28, 2018, 9:17 pm
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this is heatsink, it have two part, i like it






solder wire in diode:



connect all part


complete:


this is clip:


thanks
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New age Spectrometer

April 29, 2018, 1:31 am
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Just wow :D
I knew the time would come. After searching around for options on USB spectrometers, i came across a company in Germany who are now making spectrometer units, adapted to fit the Raspberry pi developer boards. Therefore opening the lid on the consumer market, creating a universal developers tool.

Check it out - https://www.ebay.de/sch/dr_licht_gmb...p2047675.l2562

They even include on-board spectral calibration hardware, all the usual adaptable interface inputs and all the perks and specs of the raspberry pi :D You can attach a touchscreen interface, basically making this one of the most powerful portable spectrometers available at < $1000 :drool:



J:beer:

Attached Thumbnails
Click image for larger version Name: s-l500.jpg Views: N/A Size: 34.7 KB ID: 59918  
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RB;s Absence

April 29, 2018, 3:46 am
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Hi Everyone,
I recently spoke to RB and he wants to apologize for not being on LPF for a while.
He asked me to notify the crew that he is very busy taking care of his Mother who is ill in the hospital. So basically he has a full plate of family looking after his Mother. Well thats about it for now I will reach out for a progress report on his Mom..

Rich:)
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About lightsaber attachment

April 29, 2018, 8:16 am
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Hey guys,

I’m new to the forum and I hope someone can help me about safety. Couldn’t find the answer searching the forum...

My spiker series 520nm 1W from Sanwu laser is on the way and I have an important question about the lightsaber attachment.

Can I see with my naked eyes (without safety goggles) the attachment at medium 600mw and high power 1W without causing eye injury?
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