Who has 445 diodes for sale?

[steve-o]

Looking for 2. (The 1W, not the 500mW) Preferably from an A-140/150. Thx!

[danielbriggs]

If he still has them available:
2x A130's... http://www.photonlexicon.com/forums/...856#post185856

[daguin]

I've got too many (A-140) on hand. I'm going to have to run a sale

$50 each with first class shipping. If you want/need priority or express, it will cost more. I'm in So. California - US (91744)

Peace,
dave

[steve-o]

PM sent..
Thx you-all.

[dilbert]

PM sent if you still have any spare.

[daguin]

PM sent if you still have any spare.

I have plenty on hand

Peace,
dave

[steve-o]

Does anybody know where to find the O-like glass ashperic lenses (405-G-1 or G-2) that are the popular choice to use for collimating the beam from these 445 diodes?
Thx

[daguin]

The O-Like (and AixiZ) are NOT the same as the G-1 or G-2 lenses. The G lenses give more output, but leave the beam more elongated. O-Like and Aixiz are available from several sources (including O-Like and AixiZ )

The O-Like and AixiZ run <$10. I have a few of these on hand @ $10.

The G lenses are more like $50. Pop me a PM if you are interested in the G lenses. I do not carry them, but the source that I know of is not active in this forum.

AixiZ at 30 feet


405-G-1 lens at 30 feet


Peace,
dave

[steve-o]

Thanks for the info, Dave. How much loss are we talking here? (The difference between the two)

[daguin]

Here is a representative comparison (Thanks Jayrob)

* 445nm diode
* 640mA's
* passive cooling heat sink
* 405-G-1 glass lens - 608mA's
* AixiZ 405 glass lens - 530mW's

Be warned about the O-Like/AixiZ lenses. There are at least two different "models" floating around. One gives a more "brownish" reflection from the AR coating than the other. These "more brown" ones have about a 4% higher loss than the more "yellowish" ones. Your loss may be a bit more than this example if you get one of the more brownish ones. It is very difficult to discern this color difference, visually, unless you have them side-by-side

Also, we have sometimes received lenses that were supposedly "broad spectrum" AR coated that actually showed a blue tinted reflection from the AR coating! I did not make the effort to quantify the additional loss with these. Once I saw that they were giving less output, I simply had them replaced. Of course that was after overcoming their argument that their "engineers" assured them that they were coated for 445nm

Another "interesting" tidbit I had to deal with for one of them. [ First know that the O-Like/AixiZ lenses are a triple-element lens as opposed to the single (aspheric) lens design of the G type lens.] The "interesting" thing about one of the lenses I've had was that the middle lens was reflecting blueish while the two outside lenses were reflecting brownish

Peace,
dave