Welcome to Laser Pointer Forums - discuss green laser pointers, blue laser pointers, and all types of lasers

Buy Site Supporter Role (remove some ads) | LPF Donations

Links below open in new window

FrozenGate by Avery

CLOSED: Osram PL 530 Modules: 808 nm to 530 nm OPSL Technology - Narrow .3 nm Linewidth (new, old stock)






Thanks, I will leave this GB open until Weds, then I need to close it.
 
Here's what I have now, enough to buy them, but will keep this GB open until Weds night and will post a closure as well as contact everyone where to PayPal. I can accept payment through PPal, is that good with everyone? I suppose we I could consider other methods of payment, but that is the easiest for me.
  1. Anthony P: 4
  2. Curtis Oliver: 1
  3. Hakzaw1: 2
  4. trinh hong phuoc: 4
  5. Immo1282: 2
  6. Eracoy: 4
  7. icecruncher: 4
  8. mojo_1234: 2
  9. Paul1598419: A few
  10. luciday: 4
  11. LSRFAQ: 2
  12. Atomicrox: 3
  13. ArcticDude: 4
  14. kecked: 10
  15. dkumpula: 10
  16. Wizard: 3
  17. zmaster: 6
  18. Gadget: 5
  19. Nae K: 2
If anyone wants to change the number they want, or I don't have the numbers correct, please let me know.

Chris
 
Last edited:
Yes, lots. I'm about ready to order, but giving a few more days. I am a bit nervous about selling to someone new in the forum, don't want to get ripped off with a false PP claim, might not include them unless they can make me a believer or induce trust somehow.

The reason I'm doing this is I cannot get them for five dollars each, unless I order 100 or more, I want 50 for myself.

Members can start sending private messages to me now with their addresses and Paypal account I can invoice to. I need to determine USPS costs for each individual to invoice properly.

So far, we have a total of close to 70.
 
Last edited:
Alaskan said:
Who is in for a group buy of PL530 low power ~50 mw green output laser modules? The more people we can get, the lower the price I can offer. I've been paying $10 dollars each in the past, I can get that price down to 7.50, or less, depending upon how many I order. Once we get enough people, I will need to collect the money via PayPal before I commit. These will be at my cost, buyer will need to pay shipping.
Click to expand...


I'm in for 5 at that price. Thanks Chris!

-G
 
Remember, to collimate these to what I consider an acceptable amount, you will probably want to use a negative focal length concave expander lens in front first, otherwise, the focal length of the collimation lens will need to be many feet to get enough expansion for an uber low divergence output. Without expanding, it takes about six or seven feet to get a 20 mm diameter beam, more than three feet for a 10 mm beam diameter, over a foot and a half for a 5 mm beam diameter. These are approximations, give or take some number of inches.
 
So loosely the output is around 10mRad from what you have given as a guide.
 
Should be no more than 8 mRad, some as low as 4 mRad, according to the specifications they can range from 4 to 8 mRad. I guess my rough estimates were too worst case.
 
You must log in or register to reply here.


Back
Top