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What can 10° colour space do for you?

Solariq S 13

To my shame, when I read that Osram was binning its new Solariq S 13 lighting led to the CIE2015 10° colour space, I didn’t know what the last bit of that statement meant. It turns out I am not alone, and part of the reason Osram is making this particular led is to educate the lighting world to the ...

Narrowband green is easier for migraine sufferers

Exposing migraine sufferers to a narrow band of green light significantly reduces photophobia and can reduce headache severity, according to a report by researchers at Beth Israel Deaconess Medical Center in Harvard University and published in Brain: Migraine photophobia originating in cone-driven retinal pathways. “Although photophobia is not usually as incapacitating as headache pain itself, the inability to endure light can be ...

Cree boosts street lamp efficacy by 25%

Cree has introduced the next generation of its XSP series of street lamps, increasing output as well as boosting lm/W by up to 25% over the standard XSP Series. Called XSP HO Series, up to 18,523 lm and 116 lm/W is available. The the lamps are intended to replace high-pressure sodium fixtures from 70W to 250W. “Additionally, the luminaires enable increased ...

Where are the flicker ratings?

Having been hunting around for downlights, I have noticed that, quite rightly, fire ratings are now published in their data sheets. But where are the flicker or strobe ratings? And I don’t mean the sort of flicker that comes along with dimmer incompatibility. I mean the residual 50, 60, 100 or 120Hz that comes from having insufficient energy storage in ...

One for football obsessives

Osram Euro Champ bulb

Nothing to do with leds, but just in case you wish to support Germany in the European Football Championships to the nth degree, or have another reason for loving the German flag, how about some custom car headlight bulbs from Osram. Available soon in H4 and H7 versions, they are the Light Champion Deutschland Edition in black, red and gold. “For hard-core ...

Luminaire achieves 143lm/W

Cree has created an integrated-driver luminaire that delivers 143 lm/W – helped by its rather cool 5,700K white. The CPY-20L canopy luminaire produces 20,784 lm. The whole CPY Series is also available in 4,000K, and with a choice of flat or prismatic lens for different looks, and light distribution. US Class I, Division II hazardous-location rating allows use in areas ...

Osram to light Eurovision Song Contest

Osram will light the 2016 Eurovision Song Contest in Stockholm. Around 800 moving heads equipped with “state-of-the-art light sources” from Osram’s subsidiary Clay Paky will be used, said Osram, although it did not say if they were all led-based. Clay Paky also makes arc-based lamps. Contest lighting designer Frederik Jönsson said: “For lighting designers the Eurovision Song Contest is like the ...

Infineon’s 0-10V dimming chip

Infineon CDM10V

Infineon has created an integrated circuit specifically for adding isolated 0-10V dc control to LED drivers. Called CDM10V, the chip comes in a tiny 6 pin SOT package. It can be used to transmit analogue voltage based signals from a 0-10 V dimmer or potentiometer to the dimming or PWM input of a lighting controller IC in the form of ...

Lightfair: Led Engin gets Bluetooth mesh control

LED Engin Bluetooth mesh

LED Engin will demonstrate its LuxiTune linear dynamic light engine at LightFair, claimed to be the world’s first Bluetooth low energy mesh-controlled tuneable white solution for linear luminaires. … what a list of caveats. End users can wirelessly configure, control and manage the luminaires. Installed in a 100 x 100mm 4foot fixture, the linear light engine delivers 650 lm/foot out ...

Ricoh gets into no-flicker LED lighting chips

Ricoh R1580

Ricoh has introduced its first LED lighting chip – apart from the camera/phone LED controller it makes. R1580 is a dc-fed constant-current LED driver controller that needs on mosfet and a handful of passives to make a driver. The novel bit is that it is either a fixed output device, programmable by a resistor, or it can be driven by ...