LED Lighting

Gaggione has created a series of 50mm acrylic optical collimators for LED lighting. Called HADAR50, they are intended to be used with white and tuneable white chip-on-board LEDs with light emitting diameters between 6mm and 16.2mm. They are mechanically compatible with various mounting bases and, for situations where beam angle has to be changed in the field, there is a ...

Gaggione has introduced coloured lenses for LED streetlight to emulate older lighting styles and reduce wildlife disturbance. There are two tints: amber-yellow and amber-orange, and they are found in its Avika range. “Blue wavelengths are known to disturb the natural behaviours of nocturnal and crepuscular species. Emit wavelengths above 560nm – amber, orange and red – to limit disturbances to ...

Marl International and Apex Industries are to light three destroyers for the Royal Canadian Navy with LEDs. Interior and exterior lighting of each warship will be marine-grade LED, and lighting management systems will also be supplied. In total, around 9,000 lights are involved, and will be supplied. Marl is the lighting design authority, subcontracted to Apex, and Marl will transfer ...

Gaggione is focussing on narrower beams with two acrylic collimators and a set of radial beam masks. LLC22R (pictured) is a 16mm collimator claimed to achieve ±4.45° (8.9° FWHM) and 34.2cd/lm with Cree XP-P leds. Emitters up to 5 x 5mm can be accommodated. LLC25R is a 32mm collimator claimed to achieve ±2.15 (4.3° FWHM) and 149.9cd/lm with Cree XP-P ...

Cree has introduced a pair of circular emitter LEDs with no over-die lens for beam-forming applications. Colour temperature options are 5,000, 5,700 or 6,000K. “These LEDs deliver smoother, more focused light output through optics compared to traditional square LES designs – perfect for premium flashlights, torches, bike lights and headlamps,” according to the company. Using the same 3.45 x 3.45mm ...

How do you stop migrating birds from being attracted to oil rigs at night? The reasons that they should not land are two-fold: the mess that they make adds to maintenance costs, and birds that land are more likely to die before competing their journey. “Offshore platforms, such as oil and gas rigs, wind turbines, and their substations, offer a ...

Cree is aiming at horticulture lighting with a 660nm red led that is 6% more efficient than its XP-G3 Photo Red S Line devices. Called the XP-L Photo Red S Line, “this extra performance can be used to lower Photo Red LED count in luminaires by 35% while still maintaining the same total system efficiency”, according to the company. A typical ...

Castle Wonderland had one of the first fully-dimmable LED-lit rooms anywhere, when, in 2011, I made up 11 luminaires, each with an early 3W Cree led, and wired them in series for one of the ceilings here. It was my first experience of having aluminium and Perspex laser-cut – excellent fun. Initially, an commercially-made mains dimmer module was used, which ...

Gaggione is offering versions of its Avika range of LED streetlight lenses made using recycled plastic. We are “incorporating recycled PMMA into our range, derived from recycled industrial scraps”, according to the company. “Our team selected one of the most transparent recycled materials on the market: recycled Plexiglas 8N. This material, both lightweight and durable, guarantees high performance in terms ...

AL8866Q is an AEC-Q100 (Grade 1) qualified dc-dc converter controller aimed at automotive front lights such has headlamps. In needs an external n-channel power mosfet, and can implement buck, boost, buck-boost or SEPIC (single-ended primary-inductance converter, pictured) topologies. Operation is from 4.7 to 85V, covering 12V, 24V and 48V battery power rails. Analogue and PWM dimming are possible via a ...