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Old 10-15-2011, 03:19 AM #1
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Default Anyone have an O-Like 50mw 450nm laser pen

Hi this is my first post but I have been lurking for a while now.

I am thinking of getting this laser.


50mW 450nm laser pen /single mode/round dot [OL-450-50P] - $82.00 : Zen Cart!, The Art of E-commerce

Does anyone have it and know if it works. I have heard that the 450 diodes are unstable at lower power levels. This is below most blue diodes but still 50 mw.


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Old 10-15-2011, 03:40 AM #2
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

go for it post a review if you do it.
i dont have it personally, but it seems legitimate since the diode is $79, and i typical new wish pen can be $7
i would be surprised if its unstable since its single mode
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Old 10-15-2011, 03:40 AM #3
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

wow this actually looks like its worth checking out

OSRAM 450nm 50-80mW blue laser diode /Single mode/round dot [OL-450-50] - $79.99 : Zen Cart!, The Art of E-commerce
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Old 10-15-2011, 04:12 AM #4
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

Well I'll be....

Crap, I might just have to break my o-like embargo after all

+1 to both of you for finding these.
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Old 10-15-2011, 04:20 AM #5
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

also a great price on the new wish pen $3
how much do single mode 445nm diodes usually go for?
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Old 10-15-2011, 04:22 AM #6
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

Quote:
Originally Posted by joshshermannn1 View Post
also a great price on the new wish pen $3
how much do single mode 445nm diodes usually go for?
http://laserpointerforums.com/f39/fs...ode-67842.html
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Old 10-15-2011, 10:11 PM #7
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

This is a 450nm diode and not a 445nm diode which has a higher minimum current. I got them confused. I will post a review when I get this laser.

Here is a list of visible diodes I found on another thread.


Quote:
Originally Posted by rhd View Post
I thought this could be an interesting (and colorful) thread to keep updated. The idea is to track current diode laser wavelengths.

My proposed guidelines:
- Only visible wavelengths from 390 to 750, and only pure diodes, not DPSS.
- Cite sources unless it's a common wavelength
- Package type (9mm, 5.6mm, C-Mount, etc) isn't important, but something clearly outside the realm of portability doesn't count.
- If wavelength is given as a range, take the midpoint, and if that gives a .5, round up.
- Differentiate between (C) common OR cheap, (E) exists but impractical or costly, and (R) rumoured or anounced.
- If a particular wavelength has more than one entry, in different (C,E,R) letter categories, the most favorable letter will be indicated (C>E>R)

I'll give this a start:
405 nm - (C) - Multiple manufacturers, Sanyo, Mitsubishi, etc
415 nm - (E) - Roithner RLT415-200PMG
445 nm - (C) - Nichia (they specify wavelength as "440 to 455", but these diodes are most commonly referred to as 445)
450 nm - (E) - Soraa Announcement, and Osram Available
473 nm - (E) - Nichia NDHA210APAE1 (likely same as Thorlabs L473P020MLD)
488 nm - (E) - Nichia NDB7352 (likely same as Thorlabs L488P060MLD
510 nm - (E) - Nichia Announcement
523 nm - (R) - Soraa Announcement
531 nm - (R) - Sumitomo Announcement (2009)
622 nm - (E) - LDX Optronics LDX-2106-622
635 nm - (C) - Multiple manufacturers (through to 642nm), Hitachi, Sanyo, Opnext, etc
657 nm - (C) - Multiple manufacturers
670 nm - (C) - Multiple manufacturers
685 nm - (C) - Eudyna FLD6A2TK

It will sure be nice to see some of those Rs become Es, and Es become Cs
Lets keep this updated as news pops up!
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Old 10-16-2011, 01:30 AM #8
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

This uses the OSRAM PL 450 diode. I think it's a second generation Osram 450 diode that replaces the PLT4NSB.

Last edited by Super Critical; 10-16-2011 at 01:32 AM.
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Old 11-06-2011, 01:59 AM #9
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

i don't have one, but i just heard about them &sounds perfect for rgb mixing. this is next on my list. thanks for the diode chart also. I'm gonna research these. i didn't think there was such a thing as a 532 or 473 diode without dpss. they're sure to be expensive if that's what they are. also i don't think Nichia makes a single mode 445.
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Old 11-06-2011, 02:19 AM #10
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Default Re: Anyone have an O-Like 50mw 450nm laser pen

Crypes! ! that thorlabs 488 is over $3k! I'll wait another decade when they start putting them in everything (that's how long i waited for blue & white LEDs to get cheap). it's nice to know the technology exists. just goes to show, you can produce light emmiting semiconductors in just about any wavelength.
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670nm 7mW RED Homemade (Generic Ebay Host)
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445nm 1W BLUE Homemade Coleman Host with Aixiz Driver
450nm 5mW BLUE Generic Ebay with Osram diode
405nm 50mW VIOLET (blue-ray) Generic ChinaVasion
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