Interview 2015:

OLEDs für die Beleuchtung – endlich raus aus der Nische?
Interview 2015

Wie sich flexible OLEDs automatisiert fertigen lassen

Artikel Elektronikpraxis Septemer 2019
Artikel 2019

Auszeichnung als ´inVISION Top Innovation 2015´

Die Imaging-Fachzeitschrift inVISION hat die OLED-Backlight-Beleuchtung seelector Lux OLED von hema electronic zur Top Innovation 2015 gewählt. Die Jury würdigt damit den Beitrag, die Themen Bildverarbeitung und optische Messtechnik weiter voran zu bringen. An der Abstimmung zum innovativsten Produkt des Jahres nahm neben der inVision-Redaktion eine unabhängige Jury von Experten teil. Mehr Informationen...

zum inVISION-Newsletter 01/15

The kind folks over at Osram has sent us one of their new ORBEOS OLED Lighting panel for a review. The ORBEOS is a round (88mm diameter) glass panel that's only 2.1mm (it weights 24g). The efficiency is 25lm/W. The brightness of the panels is 1,000cd/m² with power input of less than a watt. They should last for around 5,000 hours. The panels are available now via OSRAM's site, they cost €240 each. They panels were actually released back in November 2009, and OSRAM say they are happy with the sales in interest so far.


Read on to see my impressions of this OLED panel, and how it compares to Philips' Lumiblade panels which were the first available OLED panels...

What's in the box

The ORBEOS come in a small box which contains the panel inside the 'development kit'. OSRAM has done a great job at this I think, it's very easy to handle. It has a battery (it even comes charged) and it charges via a USB. So what you basically get is a large OLED flashlight.

thumb_2010-04-12_orbeos-panel-in-hand thumb_2010-04-12_orbeos-panel


The kit contains a dimmer and an on/off switch. You can easily take the panel out (there are four plastic caps on the sides, you just have to remove them). OSRAM say that it's important to return the panel in the right direction - to the minus and plus connectors on the kit. Obviously I didn't read the instructions before playing with it, so I can say that I did return the panel facing the wrong way and tried to switch it off. It didn't work, but it didn't seem to harm the panel. Don't try this at home, anyway.

thumb_2010-04-12_battery-back-in-hand thumb_2010-04-12_battery-back

So this is easier to use than the Philips Lumiblade kit (pictured below). On the other hand, remember that this kit is aimed for designers, who'd want to use the panels in a lamp design - so they'll need to get rid of the large "kit". This is easier done with the Philips' design which separates the panel from the power with cables:

thumb_2010-04-12_philips-lumiblade-oled-kit thumb_2010-04-12_philips-lumiblade-oled-kit-2

Switched on

The ORBEOS emits a warm white light (2,800K, CRI up to 80) like an incandescent lamp - somewhat yellowish. You can't actually dim the light all the way... there's a large cut-off between "on" and "off". A bit annoying, but maybe that's the kit design, as the panel itself should be "continuously dimmable" according to Osram.

thumb_2010-04-12_orbeos-light-dark thumb_2010-04-12_orbeos-on-a-chair

The ORBEOS has a honeycomb wire structure to the panel - this is visible in both the off and on state. I can say that even after working for several minutes, it doesn't get hot at all. This obviously one of the advantages of OLEDs (interestingly Philips' panel got very hot).

Compared to a white-square Philips Lumiblade OLED

Both panels are rated at 1,000cd/m², and indeed both seem just as bright. The ORBEOS is much larger than the square Lumiblade I've got (which is 43.7x47.4 mm) and so it's brighter of course. The Lumiblade is white ('cold' white) while the ORBEOS is more yellowish. Like I said before, the Lumiblade gets very hot while the ORBEOS stays cool.

thumb_2010-04-12_orbeos-vs-lumiblade-off thumb_2010-04-12_orbeos-vs-lumiblade-on


I think that OSRAM has done a great job on this OLED development kit. It's very high-quality, and it's exciting to handle one of the world's first OLED panels: you know you're holding the future of lighting... If you plan to get a few and use them in a lamp design, you have to understand that you'll need to build a controller of your own if you want to enjoy the thinness of the panels and get rid of the bulky kit.

The ORBEOS panels are very expensive (€240 each) but these are just samples - they are not yet mass produced. They are not very efficient either: 25lm/W is much less than a fluorescent (which is usually 60 to 90 lm/W). Obviously this is just a first step, as companies already announced OLED panels that exceed 100 lm/W in the "lab".


OLED Projekt- und Netzwerkmanagement

OLEDs als Beleuchtungskomponenten für die IBV Organisches Licht

Anwendungsartikel in inVision Februar 2014


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