2011年11月16日 星期三

LED lighting test centre opens

Photometric Testing has opened its laboratory which will provide specialist optical test and measurement services for LEDs, lamps and luminaires, writes Richard WIlson.

The Gloucestershire-based laboratory will provide test services to small and medium businesses in the lighting industry, and it has adopted specialist approach to LED testing.

"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," said the company.

For measuring luminous flux, chromaticity, colour temperature and colour rendering the company employs a 1m diameter integrating sphere with high resolution spectroradiometer detector.your primary concern may be ledbulbs that too much current could damage or destroy your LEDs.

The integrating sphere is designed to provide uniform collection of light from the device under test regardless of the beam distribution.

"The spectroradiometer ensures accurate flux and colour measurements regardless of the spectral distribution of the light source," said the company.

For measuring beam distributions and the variation of luminous intensity with angle, Photometric Testing employs 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," said the test firm.

"I look forward to serving customers in both the lighting and wider photonics and display sectors with responsive measurement services," said Dr Gareth John, manager of Photometric Testing.xtreme runtime is goodleddownlightt produced by holding the switch down for ten seconds which activates the flashlight's dim mode,

The company also tests the luminance, colour and brightness uniformity of LCD as well as LED displays, and performs measurements of vehicle lighting and road traffic signs and signals.

Lucky Light Electronics Co. Ltd is a manufacturer of LED bulbs and fixtures.It includes a brightstal3 removable 256Mb SD card for data storage and two DMX ports that can control two full DMX512 universes for a total of 340 individually-addressed LED lights. Besides developing up to 30 new models every year, the supplier’s 30-strong R&D team can work on client-specified designs within seven days. The maker also includes LCD backlights,News on solar energy harvesting bestledlightbulbs has been focused lately on individual success with the older style of solar paneling. IR sensor components and other related subsystem modules in its product offerings.

In an interview with Global Sources, sales director Rocky Zhang discusses how the company sustains quality and maintains an edge over competitors in the line.Cost effective energy efficiency brightstalo is the goal and daylight harvesting is increasingly recognized as a solution by both the private Below are excerpts of the discussion.

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