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Mellis Griot Laser Beam Expanders

scopeguy20

scopeguy20

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I can obtain the Mellis Griot Laser Beam Expander [FONT=Arial, Helvetica, sans-serif]part# 09 LBZ 010, original price: $800.00+[/FONT][FONT=Arial, Helvetica, sans-serif] This can be used with blue 473nm, Green DPSS 532nm , argon-ion and many other visible lasers as it is [/FONT][FONT=Arial, Helvetica, sans-serif]Coated for broadband, "dielectric coating" for visible wavelengths.[/FONT][FONT=Arial, Helvetica, sans-serif] It's a 10x beam expander for designed wl 488nm. Input aperture of 2.5mm, exit aperture is 22mm. Length is 169mm, minimum focus distance is 2.5 meters. C mount adapter for 1 in. Quality & Unused. Wooden case included. Cost is $225, (+ shipping and PP at my actual cost, btw, I'm in the USA so if sent to a USA buyer it's total about $246.50)

btw, I bought and sold , traded etc. several of these 2 years ago, they were very popular... and there were more wanted, than I could supply...

Many Thanks Friends! -Glenn
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SirVesa

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Glenn can you get the adapters for these to rpl's? also do you have a pic of the exact unit.
 
scopeguy20

scopeguy20

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Yes, I have a machinist pal who can make any adapter needed, and pic, Here's one:
2598-beam-expander-10x-mellis-griot.jpg
 
Prototype

Prototype

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Glenn, very nice, do you know how long you'll be able to offer these?
 
scopeguy20

scopeguy20

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I only have 3 days to find out how many are wanted and must order by the 15th, sorry for short notice!

I was asked, "What does it do?" So, here's some info. on this:

The Laser Beam Expander, takes the beam, stretches it into a large diameter, then re-focuses it for any distance from 2.5 meters to infinity, and in doing so, makes a much smaller "dot' at distances than the original laser, so, it effectively will make the divergence nearly 10X as good, with very little light loss. This will project a "dot" at a farther target as a smaller projected "dot" or may make things burn better at several times the original max distance. It may also help to illuminate an area to make or re-construct a hologram better. There are other uses as well, as the imagination is the main limitation. I hope this explanation helps. Best Wishes! -Glenn
 
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Laha

Laha

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Hi Glenn,

I would be interested in one. I sent a pm, so please let me know about the cost of the adapter and shipping.

Thanks!
 
Hemlock_Mike

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Input allignment is necessary on these since the input apperature is small. They work real nice. I got a couple of these from Glenn looong ago.

HMike
 
scopeguy20

scopeguy20

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Custom made Beam expander to laser coupler devices will be made for $30 by a very recommendable machinist. -Glenn
 
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SirVesa

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I have 2 other beam expanders that i need couplers made for, like i said in the pm, What would the machinist need to be able to make the couplers?

the 2 beam expanders that I have have different threading from each other.

Also , the input alignment would be an issue with one of them , the other is adjustable as far as the input alignment.


I sure hope you can rsvp. thank you
 
scopeguy20

scopeguy20

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The adapters will not thread onto the laser or beam expander, these would simply have a collar and lock nut, so only the diameter of the lasers head needs to be measured, (carefully), to know what the adapter will go over and lock onto. This will be made to size to fit each laser. Matching threads would be much more expensive and isn't necessary. -Glenn
 
scopeguy20

scopeguy20

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Sorry the supply is already drying up! If you want one there is little time left to let me know. There may be one or two for IR ava. but those are scarce too! Funds will be needed to order these by tonight, if you can't fund yours, and are pretty sure you want one, let me know, I will see if I can get seller to hold one for you, (but the cost may possibly), end up a bit higher. -Glenn
 
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