Led Luminaries

Osram has created a ‘white’ led specifically to work alongside native red emitting leds for horticultural growth illumination. In horticultural lighting, the name of the game is to direct most of the electrical input power into the red and blue parts of the spectrum needed for plants to grow. On top of this are requirements for people to be able ...

Gaggione has introduced a set of low-profile optics for wall washing and zoom beam applications . Branded ‘Ultra Flat Optic’ – or UFO – there are 45mm diameter asymmetric (wall washing, top photo) or zoom versions, plus a 67mm zoom version. To keep height down, the rears have Fresnel-like structures (left) to gather light. Total height from the led emissive ...

Osram has turned to Gaggione for an optic to demonstrate Osram Stage leds. Stage leds have four die under a flat glass window in a 4.5 x 5.7mm package. The die are either all white, or combine deep blue (439 – 461nm), red (612 – 630nm) and ‘true’ green (513 – 545nm) with either a (converted) yellow or a white die. The ...

Osram has teamed up with Infineon to add NFC set-up to led lighting to a non-dimmable Osram led driver family. “NFC programming is designed to replace resistor-setting techniques via a contactless NFC interface,” according to Infineon. “The integrated ‘constant lumen output’ functions additionally help saving energy by maintaining the luminous flux constant over an extended luminaire lifecycle.” Optotronic OT FIT ...

Ledvance has introduced a second version if its damp-proof luminaire, claiming higher power, more efficiency and improved light quality. ‘Damp Proof Gen 2’ comes in 1.2 and 1.5m long  version emitting from 8,000 to 11,000 lm. Efficacy can be 135 lm/W and the polycarbonate housing offers IP65 water resistance and IK08 robustness. “The new version has a flicker rate of ...

Bridgelux has released a CRI=90 family of leds that use a narrow band red phosphor to increase efficacy. Called F90, the series uses potassium fluorosilicate (PFS) phosphors licensed from Current Lighting Solutions of Ohio. “For traditional LED technology, higher CRI results in a lower efficacy,” according to Bridgelux. “By replacing broadband red nitride phosphor with narrow-band red PFS phosphor, the F90 ...

Rohm is offering 2cd from a 1.6 x 0.8 (‘1608’ = ‘0603’ = 1.28mm2) led. Called CSL1104WB, forward voltgage is 2.9V ar the rated 20mA. Max current is 40mA. Operation is over -40 tp +110°C. “The products are optimised for applications requiring high brightness white light emission such as IoT devices, drones and other battery equipped applications,” said the company, pointing ...

Lumileds has teamed up with NASA spin-out BIOS Lighting to create a “human-centric lighting solution, that delivers superior melanopic ratios at comfortable CCTs – 3,000K, 3,500K, and 4,000K,” according to Lumileds. It claims: Superior melanopic ratio, high-efficacy circadian lighting High R9 CRI to score well on ‘cyanosis observation index’ “Only spectrally optimized circadian lighting delivers the specific and measurable physiological ...

In a world where mid-power and CoBs seem to be dominating in lighting, it is refreshing to see a high-intensity 1mm die power leds appear – in this case Cree’s lens-less XLamp XP-P, which comes in the 3.45 x 3.45mm XP package. “With up to 700 lm available at max current, the XP-P enables tighter beam angles and much longer throw ...

Gaggione and LensVector have teamed up to create an electronically-shaped narrow beam light engine. It combines Gaggione’s LLC66N7 67mm narrow beam collimating optic with LensVector’s 65mm M2M liquid crystal lens (black-edged front optic in image right) – to the collimator has to be added a lens holder (far below) making ‘LLS66NCLV assembled set’. “This complete, modular drop-in optical system solution enables digital control from ...