To SSL industry :The wish list

stardustsailor

stardustsailor

Well-Known Member
It came to me ..
Another one of my most crazy ideas ....

1) We are not aware who actually is reading our posts ....

2) As the cannabis cultivation moves towards a better legally termed state ,
the more the different markets around this act ,will populate ,
at the same time they will be while taking more " direct initiatives " towards satisfying the market needs ...

HEy ...
We 'pretty much have a "voice " here ...
So here's our wish list .....

As being the one openin' this thread ,please allow me to express my wish ,first..


To :OSRAM
Topic : Monochromatic Chip-On-Board L.E.D. array for Horticultural purposes ...

Something like a Vero 29 ...
A lot like it ...
Plastic case with mounting holes ..
Aluminium substrate ...
Same large L.E.S. ...
About ~ 150- 160 diodes under it ...
BUT ....
The diodes are going to be the same like the ones the Oslons are using ....
660 nm red +450 nm blue + 730 nm far-red ...
With transparent ( non phosphor doped ,of course ) flat silicone (LES )
and not those silly silicone dome lenses ,Oslons have , that pop off ,so easily ...

Does not this sound as a good idea ?
We do not need monochromatic LED fixtures ...
Just give us those " OSLON " monochromatic combo COBs ,those ones ,
the ones for horticultural purposes ..
We'll be waiting for them ....
Thank you.

With respect ,
Stardustsailor .
 
stardustsailor

stardustsailor

Well-Known Member
alesh said:
Can be interesting if they could offer efficiency similar to all white COBs.

Test grow comparing 80CRI/3000K white and reb/blue/magic:) spectrum with the same PPFD would be interesting.
Click to expand...
The efficiency of such a hypothetical monochromatics combination COB ,
probably is going to be higher ,than the phosphor conversion .
Still ,there are other techniqual issues probably ...
The homogeneity of wls in space ...Ligfht quality spatial distribution ...
But then again I think a flat transparent light emitting surface ,
will aid in considerable level ( via scattering ) in "mixing" those different monochromatic wls ...

My impression is that with such COBs ,the artificial solid state light indoor horticulture will experience
another leap towards evolution .

A phosphor conversion white COB will grow plants ....
But it's meant for human vision ,something that we must not forget ...
Which directly translates to " Lot's of 500-600 nm wls " ...


A monochromatic R+B+FR COB will grow plants ,also....
But ain't the best light to work with / under ,as a human being ..
And it's usually "spiky" in plenty of meanings / ways
-something that plants do not seeem to "enjoy" ,that much -
and lastly some wls are gone MIA ....


But white P.C. COBs along with monochromatic combo COBs ?
Together ?:fire:


Free to choose the "ratio" ,between them ?

( Here's your ...basic ... ingredients :
- R/B/FR " monocombo " COBs
-5000K 70Ra Cool White COBs
-4000K 80Ra Neutral White COBs
-3500-3000 K 80Ra Warm White COBs
And...
Now,you can start making your magic light ,dear young lightchemists ...
The possibilities are ..endless ... ;) .....)



With the fact that no PCB / IMF required ? ( <== do not forget all the red & far red LED chips and their notorious thermal behaviour )
:dunce:


With so many opticals around ?
:shock:


Oslon chips under a flat LES,in a "Ready -To-Mount " COB package ?
:hump:


A big leap forwards ,I'm tellin' ya ...
Mark my words ,posted today 19 / 08 / 2015 .
;)
 
Last edited:
alesh

alesh

Well-Known Member
stardustsailor said:
The efficiency of such a hypothetical monochromatics combination COB ,
probably is going to be higher ,than the phosphor conversion .
Click to expand...
In the case of blue chips, no doubt. And we've probably never seen any red chips this underdriven. A COB size of Vero29/3590, what's the current per string? Can't be much more 150mA at test current, can it? And much lower when driven soft. Should be interesting.
BTW do you know what size are chips in Vero29 and/or 3590?
stardustsailor said:
Still ,there are other techniqual issues probably ...
The homogeneity of wls in space ...Ligfht quality spatial distribution ...
But then again I think a flat transparent light emitting surface ,
will aid in considerable level ( via scattering ) in "mixing" those different monochromatic wls ...
Click to expand...
Shouldn't be that much of trouble IMO. Even the largest COBs have just a tiny LES. More critical for human lighting. And if there can be lights with ie lots of XB-Ds packed together with a good homogeneity...the plants won't mind. Where I can see problems is mixing various COBs in one light. That certainly won't produce uniform light.
stardustsailor said:
My impression is that with such COBs ,the artificial solid state light indoor horticulture will experience
another leap towards evolution .
Click to expand...
You very well might be right. But don't forget that there have already been such attempts. But the general attitude was something like 'Fuck the efficiency, here's your magical spectrum and it doesn't need much photons.' Hopefully the guys from the engineering department will beat the ones from the marketing (like that could happen lol).
stardustsailor said:
With the fact that no PCB / IMF required ? ( <== do not forget all the red & far red LED chips and their notorious thermal behaviour )
:dunce:
Click to expand...
This will be a great advantage I agree.
 
Greengenes707

Greengenes707

Well-Known Member
Dear Cree,

I would really like it if you could make a 3590 or 3070 without phosphor. Basically just a big blue COB. Very simple request IMO. Like the deseil of cobs...less processes. But hopefully not priced like deseil.

Next,

Dear Intematix,

I would appreciate it if you would work on a horticulture phosphor blend that maintains high effciency while still targeting deeper red area of the spectrum. I would like this phosphor available in a 85-90mm remote disc and/or coating a glass or silicone lens.
 
Growmau5

Growmau5

Well-Known Member
This is a great post and definitely worth putting out there. In the 1990's Osram was one of the first companies to tailor T8 fluorescent bulbs to the aquarium industry and then went on to manufacture metal halide bulbs in the 10,000K to 20,000K range for reef tank enthusiasts. Hopefully they will show the same kind of love to us.
 
P

PurpleBuz

Well-Known Member
stardustsailor said:
A phosphor conversion white COB will grow plants ....

A monochromatic R+B+FR COB will grow plants ,also....

But white P.C. COBs along with monochromatic combo COBs ?
Together ?:fire:
;)
Click to expand...
phosphor based white cobs are important for plants because they provide a relatively wide band of colors. plants as well as humans appreciate that although for different reasons.

a bunch of mono R+B+FR COB will have same problems as combos of R+B individual monos. too many missing wavelengths and too many high peaks. But supplementing with either is great.

If you design a light with a good phosphor white COB as a base, it takes very few monos to supplement the spectrum enough to achieve a very high CRI.

I know this isn't very profound but I actually like supplementing 3000K COBS (low CRI 70) for the "base" lighting and supplementing with a few monos to enrich missing wavelengths.

It lets me tune my spectrum to what I want and not some cookie cutter conceived by somebody else with different objectives.

so I guess bottom line wish list is for led companies to continue efficiency improvements in BOTH monos and whites
 
stardustsailor

stardustsailor

Well-Known Member
I can imagine a great and super versatile combo ...

3x Vero 29 5000 K 80 Ra
3x Vero 29 3000K 80 Ra
1x Duet 2400 ...in the center ...

7 COBs ,over 2000 umol/sec output ,4 different channels
( 450 nm , 5000 K , 3000 K , 660 nm broadband**
( **= >deep red nitride phosphor = >no need for FR leds )

..Waitin' can be a bitch ....
:P
 
nevergoodenuf

nevergoodenuf

Well-Known Member
But you will need 15 foot ceilings with that kind of power. I don't know why they used the Apollo platform? The Luna series is more efficient and still over kill on power form one point. I had to turn down my Luna 300 to around 230 watts @ over 3 feet above the canopy (2'x4') in my veg room. They should have add a large circle of 4000K white in the middle for a true full spectrum. I didn't think they were going to make a huge blurple COB.
 
dionysus4

dionysus4

Well-Known Member
stardustsailor said:
Sometimes whishes do come true ...
In unexpected ways ....
Something tells me ...
A new " era " in COB LED growing is ...growing ....
Ha ...

Flip Chip Opto : Duet series ....

http://www.fcopto.com/portfolio-view/duet-2400/
Click to expand...
wow a 14 cm COB???

anyways how can we determine the output of this beast?

the data sheet seems to have holes ie they list ppfd but dont tell us what size space it is in(should we assume its in 1m2 and they ment ppf?)
Screen shot 2016-01-07 at 23.54.38 PM.png

anyway why didnt they just make it run on ac and totally blow us away lol
 
FranJan

FranJan

Well-Known Member
Just for shits and giggles I would love to see Lumi build a Horti COB using this tech.


LuxLive: Lumileds purple LED spotted
http://www.electronicsweekly.com/news/products/led/luxlive-lumileds-purple-led-spotted-2015-11/


LuxLive: Lumileds purple LED spotted​

Part of its Luxeon C Colors range, the firm has added a red phosphor to a blue die to produce the lamp, which is intended for plant growing - where green light is wasted in reflection.

The colour can be seen on the far right of the photo, and in the box with a plant below.

In optics, 'purple' tends to refer to blue + red while 'violet' is usually reserved for light with a single narrow spectral bump at the short wavelength end of the visible spectrum.

With Luxeon C Colors, the company has uniquely used substrates of differing thickness for each colour, depending on internal construction, to get the emission surface at the same height above the mounting surface in all products. In this way, each device gives the same beam pattern with any give optical arrangement.

A couple more snippets were revealed:

Firstly the Luxeon C Colors substrate is aluminium nitride rather than the cheaper and more common aluminium oxide - which explains the excellent thermal figures.

Secondly, the firm moved away from its asymmetric Rebel design to a package with its optical centre co-incident with its physical centre to improve optical alignment if the packages rotates slightly during soldering.
 
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