LED Companies w/ LINKS

FranJan

FranJan

Well-Known Member
Been reading about this for a few days and this is a very good article explaining this tech. IDK about it taking over COBs just yet but if COB manufacturers adopt/license this tech into their existing products, well it should mean cheaper, leaner, more efficient COBs or something even better IMHO.

Also I've done a little editing of the original article to get it more inline with a lot more more in-depth articles out there. Samsung will also be shipping LEDs like these in late 2015 according to other articles out there. It is not a concept and it is called WICOP2 and it is made for lamps and not LED screens like the original WICOP.


Seoul Semiconductor Mass Produces Simpler Structured Package-Free LED
http://www.ledinside.com/products/2015/9/seoul_semiconductor_mass_produces_simpler_structured_package_free_led
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On September 15th at Pudong Marriott Hotel, Shanghai, China, the global Seoul Semiconductor specializing in LED (CEO ChunghunLee, www.seoulsemicon.co.kr) announced a new product WICOP2 LED which does not need processes such as Die Bonding, Wire Bonding, etc. which were necessary for the conventional LED Package production nor main LED package component parts such as Lead frame, Gold wire, etc.​
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WICOP (Wafer Level Integrated Chip on PCB) is a totally new concept LED product which overcame the limits of the existing CSP (Chip Scale Package). Seoul Semiconductor succeeded in developing and producing the product for the first time in the world in 2012. Because it is designed to directly connect the chip to PCB, there is no need for packaging process such as die bonding or wire bonding. In addition, as there is no intermediate substrate, the size of the chip and package is 100% the same. It is characterized by the super mall size and high efficiency. It is also good for the high luminance and thermal conductivity.

In the case of the currently widely used product of TOP LED, a lot of materials are required for the product such as Die Bonding equipment to attach the chip to the lead frame, Wire Bonding equipment to connect electrodes to the gold wire, and lead frame, gold wire, and adhesives in each process. As the conventional LED needs such packaging process (commonly referred to as die bonding and wire bonding process) and it has a package size larger than the chip size, the size of the chip could not be made smaller.

The CSP (Chip Scale Package) technology derived from silicon semiconductors is a technology to miniaturize the size of semiconductor parts (package) to the size of a chip. Generally, when the size of the package does not exceed more than 1.2 times the chip, it is classified as CSP. This technology was applied to the LED industry and companies such as P announced products using this technology in 2012. However, because products using such technology need die bonding equipment, intermediate substrate or ceramic or silicon material to attach the chip to the PCB, it was difficult to see the technology as a complete CSP.

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[Comparison of LED production process – General LED, CSP, WICOP]

General LED Package structure.

CSP: Use of intermediate substrate between Chip and PCB structure.​


Wicop: Direct connection between Chip and PCB structure.

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Seoul Semiconductor released for the first time in the world a complete concept of WICOP products in which the size of the package (PKG) is the same with that of chip and does not use other main materials by directly attaching the chip to the PCB. It started to mass produce relevant products and supply them to client companies, thus firmly establishing its position as the leading company in the industry. Also, it secured a global patent regarding Wicop and succeeded in constructing a technological barrier.

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Greengenes707

Greengenes707

Well-Known Member
alesh

alesh

Well-Known Member
Greengenes707 said:
Even higher than normal high cri versions of the 3590. The "studio" for the film industry. So up there going for the mole richards/alta market.
I am curious on the LER here(95cri) compared to the 92cri...Will it justify it's bin with photons or not.

Studio 95cri:
http://www.cree.com/~/media/Files/Cree/LED Components and Modules/XLamp/Data and Binning/ds CXA2.pdf

Regular 80/92cri version:
http://www.cree.com/~/media/Files/Cree/LED Components and Modules/XLamp/Data and Binning/ds CXB3590.pdf
Click to expand...
http://rollitup.org/t/cob-efficiency-spreadsheets.865238/page-10#post-11906237
The price is insane...
 
FranJan

FranJan

Well-Known Member
^^^Arrow can get em for 110.00. Wheeeee! :roll: LOL Hey if they can grow connesiuer grade stuff they could be worth it ;).
http://www.eciaauthorized.com/search?pn=CXB3590-0000-000N0YAD32Q

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Plessey, Plessey, Plessey. Who the fuck are these guys and why are they getting so much effin' LED press? Well here's an article about everyone's latest LED darling who have a very interesting design twist. Dare I say, "FU Ledil, die die die!" OK, maybe I'm havin' a bad hair day. :)

Narrow Beam Optics Are Micromachined At Plessey
http://www.electronicsweekly.com/news/components/led-lighting/plessey-micromachines-narrow-beam-optics-2015-09/

Plessey is claiming narrow light emission angles direct from lighting LEDs using what it is calling ‘chip-scale optics’.

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According to the company, schemes to collimate monochromatic light at the LED level have been developed before but no-one has previously collimated white light at the LED level. “The technology was originally designed as an on-chip phosphor dam,” said Plessey’s CTO Dr Keith Strickland. “We realised that the original growth silicon, normally sacrificed during LED production, could be shaped and used to form mechanically robust MEMS-type features on the emitting surface of a vertical LED,” said Strickland. The degree of collimation is controlled in part by the mechanical dimensions of these on chip structures. Beams as narrow as +/-5° can be created.

Light shutters waste optical power, which according to Plessey optical designer Dr Samir Mezouari is not necessarily an issue.
Mezouari writes: “High-end lighting designers do not count lumens per Watt as the primary figure of merit for LEDs. A lighting designer aims to illuminate a particular surface area. Chip-scale optics can simplify luminaire designs by forming symmetrically collimated beams with narrow angles or asymmetric beams to form elongated far field light profiles.” Initial intended applications are: retail spot lighting, hospitality lighting, high bays, low bays, street lighting and stadium lighting.

Plessey will be exhibiting the technology at LuxLive in November. Samples are scheduled for Q1 2016. Earlier this year, Sheffield-based Litecool announced an in-package narrow beam LED technology which recycles blocked light leading to only 10% light loss, said Litecool.
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FranJan

FranJan

Well-Known Member
P

PurpleBuz

Well-Known Member
FranJan said:
Cooool, I can finally afford a Zelion! How come no one tells me about these things :cuss::p. Not a bad way for the smaller grower to add some quality spectrum.


Click to expand...
still waiting for the led mfg to put a 120 deg collinear lens with polarization right on the chip. would make secondary optics a lot simpler
 
FranJan

FranJan

Well-Known Member
I basically work with very large diodes for a living and I see what happens to different forms of energy that pass through different media. This is kind of why I prefer raw LED light with as little interference as possible and I think that may be one reason MMJ seems to really dig COBs. We're still stuck in a photometric first world when it comes to white and sometimes there are products that aren't as good as they should be for our uses because of collimation and beam shaping and such. One day I believe we'll have some energy to waste on light shaping but if we can do it without optics, I'll take that instead. Diffusion/beam mixing with monos and different K whites seems to have it's place but there's so much to still learn so for now I'll take it raw please :).

Here's an article that was mentioned before but I don't think was posted here.

Litecool Develops Narrow Beam LED Packages Without Secondary Optics
http://www.ledinside.com/news/2015/7/litecool_develops_narrow_beam_led_packages_without_secondary_optics​

Litecool (http://www.litecool.co.uk), has been working on various LED package designs to give luminaire manufacturers an LED package that doesn’t need any further lensing or reflectors to give the desired beam patterns for lighting applications.

Litecool is well known for their innovative approaches to thermal management but this is their first real development in optical technology and it looks like it could be pretty useful for lighting manufacturers. Nearly all LED packages come with a near Lambertian emission leaving the luminaire manufacturers to work out how to shift that into something useful for their application. This gives both an efficiency and financial cost which Litecool believes they can eliminate with their packages.


Litecool narrow beam LED package relative intensity. (Litecool/LEDinside)​
Litecool designs and develops LED COBs and packages from scratch. That means they can change the optical surfaces within the package allowing for different emission patterns. A recent project completed by Litecool has shown that with minor changes to these surfaces they have been able to produce a 36 degree spot with an efficiency above 90%. The project is set to continue and will look to bring the beam angles down to levels suitable for the majority of lighting applications including spot lights. It is expected that Litecool will incorporate this technology within the Lumen Block product range due out next year.

“This is the first iteration and it looks promising. We will be able to reduce beam angles down to around 20 degrees with about 90% efficiency. It doesn’t cost much to make a few design tweak in our packages so it looks like we are going to be able to offer specific beam patterns directly from our LED packages with greater efficiency and lower system costs than what can be achieved at the moment.” James Reeves, CEO, Litecool.​


Litecool narrow beam LED package's luminous intensity. (Litecool/LEDinside)​
 
PSUAGRO.

PSUAGRO.

Well-Known Member
FranJan said:
Cooool, I can finally afford a Zelion! How come no one tells me about these things :cuss::p. Not a bad way for the smaller grower to add some quality spectrum.







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Click to expand...
Ummmmmm.........we've mentioned the par 38 bulb(v2 flower spec) a couple of times now in here......just saying froggy

amazon is the exclusive distributor for now..
 
robincnn

robincnn

Well-Known Member
Who tops the deceptive advertising...
It is a close call these days between VW and Chinese led compnies. Here is something i saw in my email today..
-----
Good day to you,i am xxx from Cidly Company,we are manufacturer of led grow light in China.
Our products successfully provide to The Chinese Space Agency(CAS) Of LUNAR PALACE 1,plants are growth on the capsule which on the Moon,

Our Company Released New Led grow light:
Powerful Led Grow Light you had never used Before!
The Unique 5W Chip LED Design,different with any other's 5W CHIP!! Get REAL BIN Bright for your plants!!
The REAL EXactly Led Grow Light replacement Nature Sun which on the Sky!!!
Just try it,you will real NEW What the result will be!!!!
 
P

PurpleBuz

Well-Known Member
robincnn said:
Who tops the deceptive advertising...
It is a close call these days between VW and Chinese led compnies. Here is something i saw in my email today..
-----
Good day to you,i am xxx from Cidly Company,we are manufacturer of led grow light in China.
Our products successfully provide to The Chinese Space Agency(CAS) Of LUNAR PALACE 1,plants are growth on the capsule which on the Moon,

Our Company Released New Led grow light:
Powerful Led Grow Light you had never used Before!
The Unique 5W Chip LED Design,different with any other's 5W CHIP!! Get REAL BIN Bright for your plants!!
The REAL EXactly Led Grow Light replacement Nature Sun which on the Sky!!!
Just try it,you will real NEW What the result will be!!!!
Click to expand...
VW did not just advertise falsely, they conspired to cheat on the emission test. I mean bejesus they actually detected that an emission test was occurring, and turned up the pollution control system for nitrous oxide.
 
alesh

alesh

Well-Known Member
robincnn said:
Who tops the deceptive advertising...
It is a close call these days between VW and Chinese led compnies. Here is something i saw in my email today..
-----
Good day to you,i am xxx from Cidly Company,we are manufacturer of led grow light in China.
Our products successfully provide to The Chinese Space Agency(CAS) Of LUNAR PALACE 1,plants are growth on the capsule which on the Moon,

Our Company Released New Led grow light:
Powerful Led Grow Light you had never used Before!
The Unique 5W Chip LED Design,different with any other's 5W CHIP!! Get REAL BIN Bright for your plants!!
The REAL EXactly Led Grow Light replacement Nature Sun which on the Sky!!!
Just try it,you will real NEW What the result will be!!!!
Click to expand...
It's more stupid than deceptive :)
 
nevergoodenuf

nevergoodenuf

Well-Known Member
I think the 36 volt version of that driver might be a better fit Ben? My lights came with the cen-100-36, and I have one running 4 Vero 29s and one 2 running 4 Vero 29s on another fixture (old fixtures with new COBs). It is closer to the voltage you need and that puts the overvoltage protection closer to the range you are in. 41v to 46v in the 36v model compared to 54v to 63v.
I still think running in parallel is the way to go. All you do is pick the wattage you want and add COBs until you hit the efficiency you want. Nobody is running all there COB at max, to were one failed COB will overload the rest. It is much easier to upgrade when all you have to do is add a COB or two, to increase efficiency, instead of getting more drivers. It is also harder to find problems when wired in series, plus the light won't work at all if you have one bad connection.
 
BenSeiDank

BenSeiDank

Well-Known Member
nevergoodenuf said:
I think the 36 volt version of that driver might be a better fit Ben? My lights came with the cen-100-36, and I have one running 4 Vero 29s and one 2 running 4 Vero 29s on another fixture (old fixtures with new COBs). It is closer to the voltage you need and that puts the overvoltage protection closer to the range you are in. 41v to 46v in the 36v model compared to 54v to 63v.
I still think running in parallel is the way to go. All you do is pick the wattage you want and add COBs until you hit the efficiency you want. Nobody is running all there COB at max, to were one failed COB will overload the rest. It is much easier to upgrade when all you have to do is add a COB or two, to increase efficiency, instead of getting more drivers. It is also harder to find problems when wired in series, plus the light won't work at all if you have one bad connection.
Click to expand...
I will use MW HLG-185H-C1400 A. Driver on picture was only used for demonstration. But thank you very much for think ahead.
 
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