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Old 09-04-2015, 04:03 PM #1
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Default 780nm CD burner current 320mA 1 x 14500

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Old 09-05-2015, 01:12 AM #2
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Default Re: 780nm CD burner current 320mA 1 x 14500

Pretty cool you actually put that into a pointer, i think very few people bother with the 780 nm diodes in dvd/cd writer drives. It seems to back a bit of punch at least.

Downside for me is that these things are borderline invisible but very dangerous to the eye.
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Old 09-05-2015, 04:19 PM #3
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Default Re: 780nm CD burner current 320mA 1 x 14500

Quote:
Originally Posted by Benm View Post
Pretty cool you actually put that into a pointer, i think very few people bother with the 780 nm diodes in dvd/cd writer drives. It seems to back a bit of punch at least.

Downside for me is that these things are borderline invisible but very dangerous to the eye.
yes, it is very dangerous to the eye because it is invisible. you should careful
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Old 09-05-2015, 09:42 PM #4
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Default Re: 780nm CD burner current 320mA 1 x 14500

It isn't invisible at all. I can see a 3mW dot just fine.
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405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
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Old 09-06-2015, 01:03 AM #5
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Default Re: 780nm CD burner current 320mA 1 x 14500

As i said: borderline invisible. You can easily see the output light of 780 or even 808 nm laser diodes when hitting a bit of paper or something like that.

The problem is that you cannot see the beam, but even more how deceivingly dim the dot appears to be. Even a full watt off 808 nm falling onto paper appears to be no brighter than a 1 mW 650 nm cat toy, althoygh the paper smoldering might be a bit of a giveaway there.

Another interesting aspect is that you will not -feel- the beam that much if you stick your finger in it. At the power density where 532nm would make your take your hand out right away, 780 nm is probably hardly possible to feel at all. This is mostly because these wavelengths easily penetrate skin and blood distrubuting the heat away by circulation.

So invisible: no. Eye problem when you do see the beam hitting your eye: yes.
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Old 09-06-2015, 01:31 AM #6
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Default Re: 780nm CD burner current 320mA 1 x 14500

That's true
__________________
405nm: NewWish (29.1mW avg|5mW rtd) | Dilda (81.5mW avg|200mW rtd) | 501B by Blord (633mW pk)
low 445nm: C6 from Survival Lasers (1351mW pk|1289mW avg|1100mW rtd)
high 450nm: NewWish (12.6mW pk|5mW rtd) | Dominator by Blord (3010mW pk|2779mW avg during 5min)
462nm: 501B by Atomic (1507mW avg)
473nm: BWB-10-OEM labby by CNI (10mW rtd)
~462-476nm "Tunablue" by Atomic (1.5W pk)
low 520nm: MXDL pen by DTR (31.6mW pk|28.8mW avg)
high 520nm: Laserlands (8mW avg)
532nm: NewWish (28.6mW pk|26.8mW avg|10mW rtd) | Dapper (30.3mW pk) | Classic (120.0mW pk|103.1mW avg|100mW rtd) | "The Green Box" by Atomic (176.7mW pk|140.0mW avg)
589nm: Spartan from Dragon Lasers (58.4mW pk|37mW avg|50mW rtd)
632.8nm: HeNe pointer by Atomic (0.68mW rtd)
635nm: NewWish (4.6mW avg|5mW rtd)
638nm: Classic from Lazerer (409.3mW pk|389.4mW avg|415mW rtd)
650nm: NewWish (10.6mW pk|5mW rtd) | Dilda (216.3mW avg|200mW rtd)
685nm: laser-in-a-box by Atomic (30.4mW pk|29.3mW avg) | 501B by Atomic (32.4mW avg)
780nm: module (2.7mW avg|5mW rtd)
808nm: Classic modded from a 532nm (162mW avg)
850nm: module (8.8mW avg|7mW rtd)
980nm: NewWish (81mW pk|5mW rtd) | 2nd line around 490nm

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