Products, Materials & Tools | Feb 07, 2013

New Benchtop Multi-Point Analyser Offers Faster, Easier Inspection of LEDs

Precision sensor manufacturer Micro-Epsilon has launched a series of benchtop multi-point measurement systems that enable faster, easier inspection of light-emitting diodes (LEDs). The colorCONTROL MFA series starts with a basic version that offers five measuring channels. The colorCONTROL MFA-5 is extremely compact and can verify the colour, intensity and colour temperature (in Kelvin) of up to five LEDs simultaneously. The measuring system is modular and so can be extended by adding extra MFA-E modules in batches of five channels, up to a maximum of 20 modules (i.e. 100 channels).

The MFA is suitable for a wide range of applications, including LED tests (binning), indication and displays, front panels, dashboard sequence tests, self-luminous object inspection. The MFA series is suitable for all manufacturers and developers of LED luminaires, including architectural and street lighting, and LED lighting for automotive interiors.

Customer opinion:
Crescent Lighting Limited manufactures and distributes LED and Fibre Optic lighting equipment for the UK and world markets. The company supplies a range of LED products for both functional and decorative use, providing long life and low energy consumption.

Kelvin Thomas, Engineering Manager at Crescent Lighting comments: “Many Lighting companies use an integrating sphere to test complete fixtures, which is relatively expensive and time consuming. Most however, lack the capacity to test individual LEDs.

We recently invested in a colorCONTROL MFA unit from Micro-Epsilon and find the speed of use, ease of set up and versatility of the MFA to be key assets. Not only is the MFA inexpensive, it enables very rapid comparison of individual LEDs to be made. Measurements can be taken at different stages in the LED product testing, providing information on how each LED is reacting to changes in temperature and drive current. Colour shift and intensity are rapidly measured enabling the designer to make clear judgement with regards to the design of a product.”

How the MFA series operates:
The MFA series operates using optical fibres. The distance between the LED under test and the optical fibre should be 1-2mm, although for bright LEDs, this distance can be greater. Light from the target object is transmitted to the inspection system via a flexible, 2mm diameter, plastic optical fibre and so is evaluated dynamically using a digital colour sensor for colour and intensity. The colour value, which is evaluated within a few milliseconds, is output as an RGB-, HIS or CIE value and then transmitted via USB, RS232 or Ethernet interface at a rate of between 9,600 and 115,200 Baud to a higher level inspection or evaluation system for further processing.
In order to ensure a wide measurement range for intensity (illumination), the user can adjust the sensitivity of the sensor by using two different modes: ‘High Sensitivity’ and ‘Low Sensitivity’ modes. The MFA series enables LED colour recognition up to +/- 4 nm. The digital colour sensor enables a colour depth of 12 bit resolution for each colour, which corresponds to 236 : 68.719.476.736 representable colours. The digital colour sensor therefore reaches an unmatched repeatability of colour and intensity.

The MFA series can be used as a benchtop system for inspection of LEDs or as an online, automated test system. The MFA series is also supplied with set up and configuration software as standard.

Special options:
Optional features are available for the MFA series, including different types of optical fibre such as UV, infrared, wide-angle and plastic fibres. Other options include optical fibres with increased vibration protection (VS). For these, friction between the glass fibres is minimised by applying a special surface treatment and impact shocks are reduced by damping.

Glass fibres can also be bonded for high temperature environments. The standard adhesive is suitable for temperatures up to 80 deg C. However, by using special adhesives, temperatures up to 250 deg C can be achieved. If stainless steel sheathing is used, temperatures can be increased even further to 400 deg C.

For more information on the colorCONTROL MFA series, please visit
www.micro-epsilon.co.uk or call the Micro-Epsilon sales department on 0151 355 6070 or email: info@micro-epsilon.co.uk

About Micro-Epsilon:
Micro-Epsilon (www.micro-epsilon.co.uk) is a major global manufacturer of sensors, headquartered in Germany. The company’s range of displacement sensors measure everything from to distance, position, vibration, dimensions and thickness, using both contact and non-contact measurement techniques. These techniques include 1D, 2D and even 3D laser-optical sensors and systems, eddy-current, capacitive, LVDT & inductive, potentiometric and draw-wire principles.  Additionally Micro Epsilon has developed its own range of non-contact infrared temperature sensors that can measure virtually any target temperature from -40 to +3,300°C. The company also manufactures a comprehensive range of colour recognition sensors.
With more than 40 years’ experience in the industry, Micro-Epsilon isn’t just a sensor manufacturer. The company is highly innovative and understands the importance of providing complete solutions and support services for its customers. The firm is renowned for its expertise in consulting, development and application of industrial sensors to complex, customer-specific solutions for measurement, inspection and automation. The focus is on selling technical advantage to its customers.

FEATURED

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting

WHITE PAPER - LEDs Lead the Way for Horticultural Lighting Horticultural lighting is one of the fastest growing markets in the LED lighting industry today. Currently estimated at being worth $690 million dollars annually by LEDInside, this figure is projected to reach billions in the coming years. Read more »

FEATURED

LUXTECH Introduces FLEX Color, Architectural Grade RGB Tape

LUXTECH Introduces FLEX Color, Architectural Grade RGB Tape LUXTECH, a leading American manufacturer of architectural grade LED modules, introduces FLEX Color to their line of flexible LED strips. The RGB strip light is populated by high quality LEDs with tight binning to maintain color consistency. Read more »

FEATURED

Job Opportunity

Job Opportunity Synergy 21 has been a successful, well-known brand in the lighting industry for around 9 years. We satisfy our customers with top-notch planning, development, production, and distribution of high-quality lighting fixtures. We also offer an attractive working environment to over 200 employees at 6 ... Read more »

FEATURED

XP-G2 High Efficacy LEDs Use Less Power, Drop-in Compatible

XP-G2 High Efficacy LEDs Use Less Power, Drop-in Compatible Cree, Inc. announces the new High Efficacy (HE) version of the XLamp® XP-G2 LED that delivers improved performance compared to standard XP-G2 LEDs, with higher output and greater efficiency to enable smaller, lighter, lower-cost designs. The original XLamp XP-G2 LED pioneered a broad set of LED ... Read more »

EDITORIAL

High Conductive Foils Enabling Large Area Lighting

High Conductive Foils Enabling Large Area Lighting Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP as one of the leading partners for research and development for surface technologies and organic electronics and Sefar AG, a leading manufacturer of precision fabrics from monofilaments, developed a roll-to-roll ... Read more »

page_peel