Looking for reflectors or optics for Cree XP-G

[tharg2007]

Anyone know where to get optics for the cree xp-g triple star ?

Been looking everywhere can find anything.
not the cutter one, this one :

oh, first post too so sorry if its in the wrong bit but it is for a bike light.

 

[ifor powell]

I suspect you are out of luck I think that tripple star is only any good for flood aplications. It's LedTechs product If they don't have anything then I don't think anyone will.

 

[tharg2007]

good job I haven't bought any yet then

Will need to rethink.

Do cutter ship to UK and if they do what's the tax and vat like? anyone had any experience?

 

[tharg2007]

anyone know of any other optics or reflectors for the single star version? could do with something quite wide, 40mm +

 

[Gunner12]

Any optic that works for the XP-E and XP-C will work for the XP-G, since they have the same package size. The XP-G will give a wider beam then then XP-E in the same optic.

 

[ifor powell]

good job I haven't bought any yet then

Will need to rethink.

Do cutter ship to UK and if they do what's the tax and vat like? anyone had any experience?

Cuttres will ship to the UK no problem but the shipping charge is not cheap overall for a small order. I did get stung for £3 vat for my last shipement (£68) which was anoying as I have been OK previously. The bad bit is the £8 you have to pay the post office for taking the £3 off you.

 

[herulach]

It would probably work with reflectors (not optics) designed for the endor star. It will fit physically inside a p7 reflector as well, but what the beam is like I have no idea.

 

[DeNomad]

Just wondering if anyone has come across any optics/reflectors for the XP-G or XP-E with a tight hotspot? I'm thinking like an 8 degree optic/reflector to maximize throw in an underwater light. Multiple or single LED I want to figure something out.

 

[yellow]

for that triple, try some big reflector with a wide hole,
probably a Mag reflector might work...
... at least its available for cheap.

 

[BrianMc]

Check out this thread , especially further down. You will need to experiment some.

Also check this thread thread if you want a tighter beam with the aspheric lens from the CPF member.

Neither are specific for the light engine, but might work for you.

 

[longleg]

Just wondering if anyone has come across any optics/reflectors for the XP-G or XP-E with a tight hotspot? I'm thinking like an 8 degree optic/reflector to maximize throw in an underwater light. Multiple or single LED I want to figure something out.

Ledil has recently come out with a new reflector:

http://ledil.fi/datasheets/DataSheet_Regina.pdf

 

[DeNomad]

Thanks for the replies guys. I think the Ledil Tuija 3 is promising for a multi LED optic.

http://www.ledil.fi/datasheets/DataSheet_Tuija-3-XP-G.pdf

 

[BrianMc]

Looks good on paper. Looks a lot like the Cute 3 in this thread.

I got burned in ordering lenses before seeing beamshots.

Lens beam pattern chart shows a nice steep curve. A crude estimate of area under the curve suggests about 95% of total output is inside +/- 10 degrees. Nice.

 

[DeNomad]

Thanks for the link Brian. Looks to me like the Lendil optics work better with the XP-E's than the XP-G's from that post... the one fellow who measured the lumens got best results with the XP-E's in the Cute 3 comapred to XP-G's in the Cute 3... Might be something to keep in mind I guess.

 

[BrianMc]

The take home story is that the 1.4 x 1.4 larger dimensions of the die (2 x area) of the XP-G brings efficacy (lumens per watt) at the cost of wider angle, harder to focus, light. With the same optics, the XP-G will have a wider beam pattern than an XP-E. The XR-E's die is the same size as the XP-E's but has a ring that limits the angle to about 90 degrees for an even tighter beam than their small size would cause.

So an XR-E Q5 bin, an XP-E R2 bin, and an XP-G R5 bin differ in total lumens but with the right optics the XR-E light could be the best thrower.

So some are trying to harness the XP-G's lumens using aspheric lenses.

 

[HomebrewMTB]

If you want a 20mm triple with optics, the Cutter with Carclo optic is the only option I know. See here:

http://www.cutter.com.au/proddetail.php?prod=cut937

http://www.cutter.com.au/proddetail.php?prod=cut861

However, as stated above, the 20mm triple XP-G is very floody even with the narrow optic. If you want a tighter beam pattern, you'll need to go down to XP-E with lower efficiency/output or go up in size to the MR-11 35mm board and optics (e.g. Cute 3).