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Old 01-04-2013, 10:10 PM #1
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Default What lens is this?

Can anyone tell from the included pictures what lens is installed into the housing? I have looked high and low and I can not tell is it a 3 element or a G1? Short of taking it apart, can anyone answer?









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Old 01-04-2013, 11:28 PM #2
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Default Re: What lens is this?

That is a G1 or a G2. Both are essentially identical.
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Old 01-04-2013, 11:59 PM #3
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Default Re: What lens is this?

Does look like a G-2 from DTR doesnt it?

https://sites.google.com/site/dtrlpf/home/glass-lenses
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Old 01-05-2013, 12:29 AM #4
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Default Re: What lens is this?

Yes, that's a DTR barrel for sure. Basically, IMO, that is the best lens and barrel available.

You might want to look into a good internal spring or an external to replace that teflon tape with. With a spring, it never wears out and there is no risk of bits of tape getting on the lens or the diode window.
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Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
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-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
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Old 01-23-2013, 07:19 PM #5
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Default Re: What lens is this?

^^ I didnt even get to see it :P
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Old 01-23-2013, 07:21 PM #6
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Default Re: What lens is this?

Quote:
Originally Posted by ApexProxy View Post
Yes, that's a DTR barrel for sure. Basically, IMO, that is the best lens and barrel available.

You might want to look into a good internal spring or an external to replace that teflon tape with. With a spring, it never wears out and there is no risk of bits of tape getting on the lens or the diode window.
I tried to put the Survival Lasers extended focus adapter with the external spring on my SH-032. When turned in it unseats the whole heatsink/pill from the inside of the host and I have to retighten it again from the inside...
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Old 01-24-2013, 03:55 AM #7
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Default Re: What lens is this?

Quote:
Originally Posted by HitShane View Post
I tried to put the Survival Lasers extended focus adapter with the external spring on my SH-032. When turned in it unseats the whole heatsink/pill from the inside of the host and I have to retighten it again from the inside...
Really? That sounds like one seriously loose heatsink bro.
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Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
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-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
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-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
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Old 01-24-2013, 03:58 AM #8
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Default Re: What lens is this?

Quote:
Originally Posted by ApexProxy View Post
Really? That sounds like one seriously loose heatsink bro.
Lol, it doesnt turn a bit, unless I force it... :P
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Old 01-24-2013, 07:54 AM #9
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Default Re: What lens is this?

Single element
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Old 01-26-2013, 07:43 PM #10
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Default Re: What lens is this?

That lens looks like it is loose.

It should be firmly attached inside the lens barrel.

Also, the flat plane of the aspheric lens should face the laser diode.

I don't think DTR would have one like that.

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Old 01-26-2013, 08:05 PM #11
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Default Re: What lens is this?

It wasn't a loose lens that he mentioned. It was that his heatsink dislodged when he was installing the lens. He was only asking for someone to identify the lens.
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Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
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-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
-638nm -1.3W - ML501P73@1.5A - Survival Laser S4
-638nm -1W - ML501P73@1.4A - Ultrafire WF-602C
-650nm -324mW - 3.8mm OpenCan@428mA - C6
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Old 01-27-2013, 04:17 AM #12
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Default Re: What lens is this?

If it is a DPSS green laser,

then a G1 or G2 lens is NOT the correct focal length for collimation.

Normally these green lasers use closest to the diode, a diverging lens,

followed by a slightly converging lens.

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Old 01-27-2013, 06:09 AM #13
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Default Re: What lens is this?

I highly doubt its a DPSS. I think you missed what was going on LOL. He wanted an identification on the lens and then mentioned how he accidently tweaked a laser installing it.
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NEW 1.5-2.5W 445nm Blue Ice/Black Ice/Flash Freeze Lasers FREE US Shipping!
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Some of the collection:
-405nm -811mW - S06J@490mA - Aurora C6
-445nm -3.04W - 9mm@2.2A - Ultrafire L2
-445nm -2.95W - M140@2A - "Hyperion" Black Ice/Flash Freeze hybrid
-445nm -2.2W - M140@1.8A - Aurora C6
-445nm -1.93W - M140@1.8A - Blue Ice by yobresal
-450nm -1.67W - PLTB450@1.7A - Survival Laser S4
-488nm ~25mW - "The Beast" JDSU Argon Ion
-520nm -132mW - PL520@390mA - Minisabre V2
-532nm -374mW - Skylaser HL532 300mW
-532nm -90mW - SD-303
-532nm -110mW - 50mW FastTech Module - DTR Skyray
-543nm ~.3mW Melles Griot HeNe
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Old 01-27-2013, 07:38 AM #14
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Default Re: What lens is this?

I can't tell for sure by the picture but it kind of looks like the lens element is upside down in the barrel. Looks like the rounded end may be faced out of the bottom.
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Old 01-27-2013, 08:17 AM #15
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Default Re: What lens is this?

Quote:
Originally Posted by DTR View Post
I can't tell for sure by the picture but it kind of looks like the lens element is upside down in the barrel. Looks like the rounded end may be faced out of the bottom.
When I bought this 445nm SH-032, I was told it had a 3 element Aixiz lens. I noticed this was not the case and started this thread. Maybe these pictures will help...
I'm pretty sure the lens is in the correct way and the bend is just an optical illusion...







http://www.youtube.com/watch?v=a0AD5kJ6Wm0

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Last edited by HitShane; 01-27-2013 at 08:36 AM.
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Old 01-27-2013, 09:00 AM #16
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Default Re: What lens is this?

Look like the 9mm 445nm original lens in the DTR barrel. The G2 is red coating and the G1 is silver coating. The stoke 9mm look transparent, little coloring amber in the coating, like this one in the picture.
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Last edited by JLM; 01-27-2013 at 06:03 PM. Reason: Coating color correction
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