INSIDE WAVEGUIDE TECHNOLOGY Inside the innovation
A
ward-winning lighting company is leading the way when it comes to slashing energy usage and lowering carbon emissions. MHA Lighting, based in Greater Manchester, uses two-thirds of the energy of its closest competitors and has developed bespoke light fittings for a variety of clients from both public and private sectors.
But how does the technology work?
MHA has developed a unique approach that has created a whole new avenue for the use of solid-state lighting in new areas and applications, an avenue which other LED lighting manufactures are failing to address with the same level of efficiency. By using patented ‘rod with holes’ technology, MHA is the only known LED manufacturer to shine light sideways into an encapsulation, not directly outwards. This avoids direct eye-contact and provides a safe and efficient light output.
Using acrylic rods to focus and control the light output, MHA are able to reduce the number of LEDs required is reduced. This means the products can use high power LEDs, draw low currents and have no need to diffuse the output. The flexibility of MHA’s award-winning patented technology allows them to replace fluorescent fittings and achieve BS and LG standards.
MHA Lighting Ltd Tel: 01942 887 400
A more in-depth look MHA uses a waveguide technology, which works by emitting LED sideways into acrylic rods. This is achieved using specially-designed, linear, printed circuit boards in which the sections containing the LEDs are bent at 90˚ from the main sections. The PCBs can be interlocked so that two LEDs on vertical sections can sit back-to-back. MHA’s approach to luminaires relies on reflecting the light internally and using the optical properties of the acrylic rod before the light is emitted in a uniform manner. The LEDs are arranged to shine their light sideways within the optic so that only a small proportion of the light is emitted directly from the fitting. The remaining light waves are guided and then subsequently reflected out. The LED-containing extensions of the PCBs are then inserted into matching holes in an acrylic rod. The LEDs emit light sideways into the rod. The emission from the rod is controlled by a reflective coating which is designed according to the desired light distribution. The effect is that light is emitted from the length of the rod in a uniform manner. The technology overcomes the problem of directionality, achieving a light distribution of such high uniformity that it is better than traditional fittings. MHA’s luminaires create a wide, rugby-ball shape of light to provide exceptional uniformity, which for most internal and external applications, is vitally important.
Web:
www.mhalighting.co.uk TECHNOLOGY IN ACTION
New range of Hipot and Insulation Resistance testers
elonic Instruments have introduced a new range of Hipot (Flash) and Insulation Resistance testers manufactured by Japan based Kikusui. Designated the TOS5300 the three models in the range are designed for use in Withstanding Voltage and Insulation Resistance testing to help ensure the safety of Electrical / Electronic components / equipment. Incorporating and innovative
T
PWM amplifier that achieves high stability and has an input voltage regulation of.3%. The series offer rise and fall time control of the test voltage and a stable output which is unaffected by mains voltage variations, plus the ability to select 50 or 60Hz test frequency. Upper and lower current limits can be set within the range of 0.01mA to 110mA in AC mode and 0.01mA to 11mA in DC mode. AC test voltage is settable from 0.05kV to 5kV. D.C test voltages can be varied from 0 to 6kV. All models will operate from any global AC input voltages and frequencies; and are equipped with a USB interface.
Telonic Instruments Ltd Tel: +44 (0) 118 9786911 Web:
www.telonic.co.uk enter 812
Component Tape Splicing from Benz Ltd T
he widest range of component tape splicing systems in the British Isles is available from Benz
Ltd. Keeping automatic pick & place equipment going while changing component reels and being able to use partially used reels, without the loss of components in the leader section,
provides
substantial cost savings. Double Splice Tape for 8mm paper SMD tapes, universal Brass Shims and Cover Tape Extenders for many widths conveniently achieve these aims.
New additions are Top-Splice, a cost-
effective ESD safe way of connecting 8mm SMD cover tapes, and Cartridge Brass Shim, which save time and money by employing the stapler principle SMD tape splicing. Cover Tape Joiners, Radial Component Tape Joiners, Tape Reel Sealers plus single and double-sided clear adhesive foil for test printing and trial placement, without having to clean the PCB before reuse, make life easier for the assembly professional.
Benz Ltd Tel 0845 1700 123 Electronics SEPTEMBER 2013 Web: web:
www.benzltd.com enter 813 A
New Heavy Duty Medium
Voltage Couplers
mphenol Industrial Global Operations, a global leader in interconnect systems, has introduced a new line of heavy duty medium voltage couplers (MVC) for use in hazardous environments. The Company’s MVC series is ideal for applications in the mining, utility, tunneling and shore power industries for safe and reliable transfer of electricity throughout a job site and range in voltage from 600 V to 15 kV with amperages up to 600 A. The new copuplers feature Amphenol’s patented RADSOK technology with higher current ratings (up to 25% higher than standard contacts) and lower mating forces as well as high reliability, low contact resistance, high mating cycles and a self-cleaning design. They also benefit from Amphenol’s Rapid- Couple technology, an interlock method that allows for quick and easy mating and unmating in the field – without the need for tools or closing mechanisms.
Amphenol Industrial Operations Europe Tel: +39 02 93254.204 Web:
www.amphenol-industrial.com
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