Photometric Testing Opened LED Lighting Testing Laboratory in UK

Nov 14, 2011 Earlier this month Photometric Testing has opened new laboratory based at the Cotswold Business Centre in Upper Rissington, Gloucestershire.  Photometric Testing laboratory is intended to serve the lighting industry with specialist optical test and measurement services for LEDs, lamps, luminaires, displays, signs and signals.

According to the official press release, the majority of small and medium businesses in the lighting industry rely upon the services of independent test laboratories for photometric testing. The problem to date has been that it can take weeks if not months for the tests to be performed. In addition, the testing has often been carried out using traditional photometers which are known to suffer from colour correction errors and which give misleading readings with LED sources. Photometric Testing aims to provide a solution to those who need a responsive service and who value accurate results. This way, we will help our clients bring their products to market more quickly and impart a high level of confidence in the specification of the products we test.

Photometric Testing maintains a state-of-the-art, temperature-controlled dark room facility and the latest photometric equipment which is designed to give accurate, repeatable measurements with all types of light source, including LEDs. For measuring luminous flux, chromaticity, colour temperature and colour rendering we employ a 1m diameter integrating sphere with high resolution spectroradiometer detector. Compared with a geodesic or cubic integrating chamber, a full integrating sphere provides uniform collection of light from the device under test regardless of the beam distribution. At the same time, the spectroradiometer ensures accurate flux and colour measurements regardless of the spectral distribution of the light source. For measuring beam distributions and the variation of luminous intensity with angle, we employ an imaging goniophotometer. This provides for measurements of candelas versus angle and the generation of standard photometric data files in the industry-standard IES and LDT (EULUMDAT) formats.

All of Photometric Testing's equipment is calibrated using transfer standards which are traceable to governmental measurement institutes (NIST or NPL), the latter being UKAS accredited. Photometric Testing recognises that current UK lighting test standards (for example BS EN 13032) were published before the widespread adoption of solid state lighting and so do not take account of the special procedures necessary to ensure accurate readings with LED sources. The company has therefore adopted best practice from other international standards such as IES LM79-08 and CIE 127:2007 to ensure that its measurements are accurate and trustworthy.

Photometric Testing is managed by Dr Gareth John who has over ten years of experience in optical physics. Before starting Photometric Testing, Dr John served as Laboratory Manager at an optical testing laboratory, dealing with a wide range of optics applications, including laser machining, environmental testing, optical communications, high speed imaging and optical spectroscopy. Gareth played a leading part in refocusing the laboratory’s efforts towards the emerging solid state lighting photometric testing market, utilising his knowledge of optics and device physics to build a state of the art, temperature-controlled photometric testing facility. Gareth is a member of the Institute of Lighting Professionals (ILP) and a founder member of the Solid State Lighting Metrology Working Group.

In addition to its lighting activities, Photometric Testing will provide a range of optical testing services to the wider photonics industry. Services include flash photometry and in particular conformance testing of Visual Alert Devices in accordance with BS EN 54-23, and assessment of the hazardous light levels in accordance with IEC 62471 and the Artificial Optical Radiation Hazard Directive. We also test the luminance, colour and brightness uniformity of LCD as well as LED displays, and perform measurements of vehicle lighting and road traffic signs and signals.

Source: http://www.photometrictesting.co.uk/File/news_photometric_testing_opens.php

Author:  Alice Jones

Back to the list


Reviews forum #FORUM# is not exist

Submit Product Review

Download Review Form

LED Jobs Banner LED Directory Banner


Recent News

12/06/2011 Pleasanton Library Cuts Energy Use By 46% With Adura Technologies Wireless Lighting Controls

12/06/2011 Forepi Selects AIXTRON´s New 19x4-inch CRIUS II-XL

12/06/2011 Future Lighting Solutions Wins 2011 Best LED Service Provider Award

12/06/2011 Leica Microsystems Presented Its Latest Range of Innovative LED Illumination Modules for Microscopy

12/06/2011 Xicato Introduced 3000lm and 4000lm XLM LED Modules

12/06/2011 A.C. Lighting Inc Appointed LedGo North American Distributor

12/05/2011 Electronics Weekly Publishes Interview with Adrian Rawlinson, Marl International

12/05/2011 New ENCELIUM White Paper Examines How Addressable Dimming Controls Help Buildings Earn LEED Points

12/05/2011 i-Pix Satellite Mk II LED Fixtures Launched in September 2011 Gain Immediate Popularity

12/05/2011 Lumenpulse Unveiled Corporate Headquarters with "Evolution of Light" Event in Montreal, Canada

12/05/2011 Anolis Deliveres LED Architectural Lighting Solutions in South Africa

12/02/2011 Lighting Science Group's New 60-Watt Equivalent LED World Bulb Receives Consumer Electronics Show Best of Innovations Award

12/02/2011 Jim H. McClung Lighting Research Foundation Announced Funding of Research Projects

12/02/2011 Magnalight.com Introduced New Explosion Proof Handheld LED

12/02/2011 SDG&E LED Holiday Light Exchange Brings Energy Savings to Balboa Park, Chula Vista and Escondido

12/01/2011 ZENARO Presents New Louver Luminaires with T5 LED Tubes

12/01/2011 Arima Changzhi Ramps Up HB LED Capacity with AIXTRON G4 MOCVD Systems

12/01/2011 CSA's State-of-the-Art LED Lighting Laboratory Opened in Atlanta

11/30/2011 Chroma-Q™ Launched Three New LED Luminaires

11/30/2011 Cree Introduced the New LMH2 LED Module Family