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Old 11-17-2010, 01:25 AM #17
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Default Re: case positive 445

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several 650nm keychain pointers, line generators and levels
2 8mW UniPhase HeNe 633nm
200mW unknown mfg 532nm
150mW Optotronics 532nm
150mW laseryork module 532nm
40mW Optotronics 532nm
5mW POS Ebay 532nm
>1.0W Yobresal 445nm
4 Ebay 405nm pens overspec
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Old 11-17-2010, 01:42 AM #18
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Default Re: case positive 445

^ how did you post nothing
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(3x) 405nm
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(1x) 543nm
(1x) 632.8nm
(1x) 635nm
(3x) 660nm
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Old 11-17-2010, 02:06 AM #19
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Default Re: case positive 445

Quote:
Originally Posted by Gryphon View Post
^ how did you post nothing
This was the post


Quote:
Originally Posted by justin lawson View Post
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several 650nm keychain pointers, line generators and levels
2 8mW UniPhase HeNe 633nm
200mW unknown mfg 532nm
150mW Optotronics 532nm
150mW laseryork module 532nm
40mW Optotronics 532nm
5mW POS Ebay 532nm
>1.0W Yobresal 445nm
4 Ebay 405nm pens overspec
LaserBee II OTW


cool pics
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405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
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Old 11-17-2010, 02:12 PM #20
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Default Re: case positive 445

Quote:
Originally Posted by Blord View Post
200mA to just lase the diode ? Dang, pretty inefficient at low power.
I'd say its fairly typical for a laser diode though. The theshold current often about 1/5th of the maximum operating current. This holds true for both dvd writer diodes and these 445 nm ones.

This makes it difficult to create a low power laser with a high power diode, since you need a current just above the treshold. The problem is that the threshold depends on temperature, and as a result the output power would greatly change with even small temperature fluctuations.
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Old 11-21-2010, 08:31 PM #21
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Default Re: case positive 445

Quote:
Originally Posted by midias View Post
This was the post
No, everything that falls bellow the solid line is his signature, above that line is what gets posted. In his post its blank.
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(3x) 405nm
(6x) 445nm
(4x) 532nm
(1x) 543nm
(1x) 632.8nm
(1x) 635nm
(3x) 660nm
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Old 11-21-2010, 08:45 PM #22
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Default Re: case positive 445

Quote:
Originally Posted by Gryphon View Post
No, everything that falls bellow the solid line is his signature, above that line is what gets posted. In his post its blank.
Odd because when I hit the quote button it picked up his signature
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405nm 31mw "<5mw" China Cheapie
405nm 71mw Samsung player harvest maglight build 115ma Flex Drive
405nm 223mw 6X Cree Build 210ma Flex Drive
445nm >1050mw 16850 Build 1300ma Flex Drive
445nm pen pointer ~20mw
473nm 20mw BWB-10-OEM lab unit
Way OverSpec 532nm 5mw Green (24mw)
532nm 82mw "50mw" Green
532nm 116mw Super Green Beast 100
635nm 46mw Pen Pointer with LM337 Driver
635nm 37mw Super Red Beast 006
635nm 235mw Mitsubishi Build
650nm 5mw Aluminum pointer
660nm 109mw 16X Lab Bud Box Build 200ma LM317 Drive
660nm 249mw LOC Hotlights Build Flex Drive
685nm 36mw LM317L Pen Build




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Old 11-24-2010, 10:59 PM #23
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Default Re: case positive 445

your right, i just pressed the quote button and everything does get copied
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(3x) 405nm
(6x) 445nm
(4x) 532nm
(1x) 543nm
(1x) 632.8nm
(1x) 635nm
(3x) 660nm
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Old 11-25-2010, 03:27 AM #24
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Default Re: case positive 445

Quote:
Originally Posted by Benm View Post
I'd say its fairly typical for a laser diode though. The theshold current often about 1/5th of the maximum operating current. This holds true for both dvd writer diodes and these 445 nm ones.
Sorry for the threadjack but this is a very usefull piece of information. Does this hold true for the 405nm diodes as well?
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