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Old 03-20-2017, 04:10 PM #33
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Default Re: Twin Blue Beams !

Yes, it is in fact the lens responsible for the apparent axis switch. So the fast axis is in fact what you should expect; yet when collimated, the specs alter to the point of being the opposite way round. Have I understood?


__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




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Old 03-20-2017, 04:13 PM #34
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by CurtisOliver View Post
Yes, it is in fact the lens responsible for the apparent axis switch. So the fast axis is in fact what you should expect; yet when collimated, the specs alter to the point of being the opposite way round. Have I understood?
I think I might have added some more text to my post after you posted so you should go back and check if there is something I added that you maybe missed ?
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

Last edited by Accutronitis; 03-20-2017 at 04:13 PM.
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Old 03-20-2017, 04:26 PM #35
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Default Re: Twin Blue Beams !

I measured mine with a G2 lens, so the beam specs will differ slightly. Can you do a test with far/mid and close field with a collimated beam?
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter

Last edited by CurtisOliver; 03-20-2017 at 04:31 PM.
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Old 03-20-2017, 04:31 PM #36
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by CurtisOliver View Post
I measured mine with a G2 lens, so the beam specs will differ slightly.
From what I can work out.
I think the problem is coming down to how extreme the fast axis originally is. The lens is over compensating the slow axis giving a negative divergence due to the large fast axis.
Yes I believe it's the wider angle the beam enters the lens with one axis's angle being much greater than the other ?

Lets say one is 30 or even 40 degrees wide and the other is like 15 degrees wide ?
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

Last edited by Accutronitis; 03-20-2017 at 04:37 PM.
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Old 03-20-2017, 04:40 PM #37
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by Accutronitis View Post
One of these beams is 2.2 watts and one is 7+ watts, Can you tell which is which ? lol


Oooooouw, pretty blue photons ! You can never have enough. Nice, build turned out real good, enjoy

It's the one on the right, the 7 watt. (now if you could put a potentiometer on that guy.)
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Old 03-20-2017, 04:42 PM #38
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Default Re: Twin Blue Beams !

I just edited my post sorry.
I'm trying to determine what it is that is causing the lens to reverse the beams divergence. The only thing I can think of it is that the lens is too powerful of the slow axis. The G2 lens is capable of slowing the fast axis down to around 1mRad, yet the slow axis has been increased to around 11mRad. This would mean that the lens has over-focused the slow axis to the point of re-expanding. I do believe that this laser would benefit from simply having two cylindrical lenses instead of a 3-element or G2 etc.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter
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Old 03-20-2017, 04:49 PM #39
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Default Re: Twin Blue Beams !

The problem as I see it is you can only bring both axis's to a single point at a well defined focal length when using a symmetrically ground lens that is rotated to focus, I believe you could maybe bring both axis's to a point at different focal lengths IF a lens could be made with a non-symmetrically ground profile BUT you would have to focus the lens for different focal lengths by moving it closer or farther away from the diode without rotating it......
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---------------------------------------------------------------------------------------------------------------------------------------
My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

Last edited by Accutronitis; 03-20-2017 at 04:54 PM.
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Old 03-20-2017, 04:55 PM #40
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Default Re: Twin Blue Beams !

This is why you would use plano-cylindrical lenses as it then only focuses one axis at a time.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter
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Old 03-20-2017, 05:04 PM #41
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by CurtisOliver View Post
This is why you would use plano-cylindrical lenses as it then only focuses one axis at a time.
Exactly !

But I can invision a system that could do the same thing as all those lens's but using only one focusing lens BUT it would cost a small fortune to manufacture such a system.......
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---------------------------------------------------------------------------------------------------------------------------------------
My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

Last edited by Accutronitis; 03-20-2017 at 05:04 PM.
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Old 03-20-2017, 05:08 PM #42
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Default Re: Twin Blue Beams !

I sure would cost a fortune to manufacture. It would be a slightly cross shaped lens. It would be interesting, but I can't see manufactures justifying the cost compared to combining two standard lenses. If they designed a lens barrel that had two PCL's designed for that specific diode, I sure would buy it.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter
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Old 03-20-2017, 05:14 PM #43
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by CurtisOliver View Post
I sure would cost a fortune to manufacture. It would be a slightly cross shaped lens. It would be interesting, but I can't see manufactures justifying the cost compared to combining two standard lenses. If they designed a lens barrel that had two PCL's designed for that specific diode, I sure would buy it.
Or you could buy a diode that doesn't diverge like the 44 and much cheaper than that system would cost to manufacture I would imagine ! lol
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---------------------------------------------------------------------------------------------------------------------------------------
My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb

Last edited by Accutronitis; 03-20-2017 at 05:15 PM.
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Old 03-20-2017, 05:15 PM #44
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Default Re: Twin Blue Beams !

lol, yes you could, but where is the fun in that.
I like a bit of a challenge.
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Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter
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Old 03-20-2017, 05:18 PM #45
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Default Re: Twin Blue Beams !

All I can say is big fun needs deep pockets !
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My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-20-2017, 05:19 PM #46
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Default Re: Twin Blue Beams !

PBS cube two!
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Old 03-20-2017, 05:20 PM #47
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Default Re: Twin Blue Beams !

Quote:
Originally Posted by Alaskan View Post
PBS cube two!
Is that a existing system like the one I've envisioned ?
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---------------------------------------------------------------------------------------------------------------------------------------
My very short laser collection (for now)

Thor "Saber" Americanised Thor M II - DTR M462 2.2 Watt 462mn Diode W/Super X-Drive @ 1.8 Amps - DTR G-2 lens - JL 10X Beam Expander Class IV

"Thor's Hammer" Americanised TLY-L201 Host Build W/Old School NASA Type Safety Switch - DTR NUBM44 6.8 Watts at 4.5 Amps 450nm Diode In 25mm Copper Module W/Driver - DTR G-2 lens - OPT Laser 6X Cylindrical Lens Pair Fast Axis Correction w/ Custom Made Beam Expander Class IV

303 Prome Star Series Green Laser 532nm 80mW DPSS Class IIIb
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Old 03-20-2017, 05:21 PM #48
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Default Re: Twin Blue Beams !

I like prefer the term, lasers can burn a hole in your pocket. Because it true both ways.
I actually have two NUBM44's for that purpose Alaskan, but have never got round to it. Now that's a scary thought.
__________________
Notable products/sites:

Jet Lasers offers various high quality Diode/DPSS Portables in their PL-E Pro hosts. Jet Lasers are known for their quality and are respected on LPF.
Jetlasers PLE Pro's

If you are after an RGB module, you can't go wrong with Optlasers. Their 400mW model is very high quality.
Optlasers RGB Modules

Optotronics offers some of the highest output DPSS Portable Greens on the market. Their 1.4W RPL-II is by far their most amazing product and is known to be overspec.
Optotronics RPL 532nm DPSS Portables

Dragon Lasers offers the best option for 589nm (Yellow) Laser pointers.
Dragon Lasers Yellow Laser Pointers

Sanwu are known to be very high quality and every newcomer should check them out.
Sanwu Home

Bang good is a good source for many electrical items and are often cheap and reliable.
Bang Good Home

For reliable safety goggles visit Survival Laser. Use LPF445 for a 10% member discount.
Eagle Pair Safety Goggles

For more sites and information please check out this thread.
Which company should I buy from? By Sta




Useful Links:
Wavelength to RGB Converter

Last edited by CurtisOliver; 03-20-2017 at 05:22 PM.
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