Need bright LED and optic to replace Fibre Optic/ Halogen light source

[Offroad'Bent]

I am looking for a replacement for a large and heavy halogen lamp assembly that provides light for a microscope via a long fibre optic bundle. The bundle's end is a 13mm diameter fitting.

I was thinking that if I could get a bright Cree R2 and a narrow beam optic in there, I could eliminate all the complexity. I would run it off a wired power source too, rather than a battery.

Anybody have any thoughts? Is there a stock 13mm housing/optic I could use? The whole unit doesn't have to be 13mm diameter, just where the LED and optic are.

What would you suggest for a driver and AC transformer?

Thanks in advance.

 

[Offroad'Bent]

Re: Need bright LED in 13mm housing to replace Fibre Optic

A further thought- if nobody has an idea for a 13mm diameter optic + housing, how about mounting the emitter and optic just outside and using some sort of 13mm adapter to send the light in?

 

[Offroad'Bent]

OK, a different idea- need help here!

A further thought- if nobody has an idea for a 13mm diameter optic + housing, how about mounting the emitter and optic just outside and using some sort of 13mm adapter to send the light in?

How about taking a Cutter optic like this one
http://www.cutter.com.au/proddetail.php?prod=cut183

and trimming it down to fit in the 13mm diameter tube, attaching a Cree R4 and suitable driver on to some sort of board and heat sink?

Is this what I'm looking for in a driver to run off a transformer?
http://www.cutter.com.au/proddetail.php?prod=cut131

I need help with recommendations of a driver and other bits, or even better if someone can do some custom build for hire.

Thanks in advance!

 

[PhotonFanatic]

You should use an optical fiber optic designed to focus the light into the end of the fiber bundle, otherwise you are going to lose a lot of lumens.

I have some Carclo optics for that, they are $5 each. Fraen also makes one, too, but I don't have those.

 

[LukeA]

The driver you want is the MicroDriver4 from LEDSupply.

 

[Mash]

Plymer Optics
look here at their pdf.
this is what you want (I think!):
Single Cell XR-E Concentrator Lens - Part No. 173
Typical Applications:
» Beam insertion into optical fibre bundles
» Beam insertion into edge of lightguides

 

[Offroad'Bent]

The driver you want is the MicroDriver4 from LEDSupply.

Thanks very much, everyone.
Any suggestions now for how to get the driver and R2 from a single source?
LED Supply doesn't seem to have the R2s, and Cutter doesn't have the Microdriver 4. Does Cutter sell something similar?

 

[Offroad'Bent]

Plymer Optics
look here at their pdf.
this is what you want (I think!):
Single Cell XR-E Concentrator Lens - Part No. 173
Typical Applications:
» Beam insertion into optical fibre bundles
» Beam insertion into edge of lightguides

Is this the same as this one at Cutter's site?
http://www.cutter.com.au/proddetail.php?prod=cut191

Could I use it with one of these R2 LEDs on a round single PCB
http://www.cutter.com.au/proddetail.php?prod=cut651

And this Buckpuck driver:
http://www.cutter.com.au/proddetail.php?prod=cut131

Or this Bucktoot driver?
http://www.cutter.com.au/proddetail.php?prod=cut619

TIA

 

[traildesaster]

How many watts does the Halogen bulb have? I doubt about the brightness will be enough. 20Watt Halogen are roughly 500Lumen. And the Cree R2 only makes 220Lumen.

Gruß td

 

[Offroad'Bent]

How many watts does the Halogen bulb have? I doubt about the brightness will be enough. 20Watt Halogen are roughly 500Lumen. And the Cree R2 only makes 220Lumen.

Gruß td

It's a 75W halogen, but the light transfer to the fiberoptic is very inefficient and I doubt 1/2 makes it through. It's also on a dimmer, and full power's not needed. I tried shining my modified PT Apex in the fibreoptic receptacle port, and it was pretty good, and I think it's only 130 lumens, with about 1/2 shining into the lamp.

 

[LukeA]

It's a 75W halogen, but the light transfer to the fiberoptic is very inefficient and I doubt 1/2 makes it through. It's also on a dimmer, and full power's not needed. I tried shining my modified PT Apex in the fibreoptic receptacle port, and it was pretty good, and I think it's only 130 lumens, with about 1/2 shining into the lamp.

If you're going to run the LED at above 350mA, you should check out the Xitanium line, also available from LEDSupply.