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CoolLED is pleased to announce a breakthrough in the development of LED excitation wavelengths in the green region of the visible spectrum. Historically, the semiconductor materials used to manufacture LEDs have been spectrally weak in this region – broadly from 520-600 nm – which has led to lower levels of intensity in a region where there are many important and interesting fluorophores requiring excitation. As a result, new LAMs (LED Array Modules) have been developed using CoolLED’s experience in developing high-intensity, actively-cooled LED arrays.

CoolLED has now released LAMs for its precisExcite LED excitation system at three crucial wavelengths: 535 nm, 565 nm, and 585 nm. These have been added to the existing range of LAMs at 400, 445, 465, 505, 525, 595 and 635 nm.

Immediate responses from existing precisExcite users have been extremely positive. Robin Battye of Quorum Technologies in Canada, a leading integration group dedicated to building advanced systems for fluorescence and live cell imaging, commented that this development was: “Awesome….it is great to have a comprehensive range of LED excitation wavelengths to make our research work even more effective”.

Commenting on the release of these LAMs, Jim Beacher of CoolLED stated: “Development of Green LED excitation is another significant step forward for LEDs as they become the default light source for fluorescence microscopy.”

Nick Edwards, Technical Director of CoolLED, commented: “CoolLED is constantly assessing new LED material in order to develop new wavelengths, We are now addressing materials for the UV region and anticipate further wavelength releases in the future”.

Each LAM is a self-contained array of LEDs at a specific excitation wavelength which is mounted on an interchangeable module. Users of precisExcite can simply remove and replace LAMs in their unit depending on the samples and fluorophores which they are using.

precisExcite is a modular LED light source where the user can select the wavelength of excitation and control the intensity period of excitation very precisely. CoolLED technology uses high-power thermally-controlled LEDs with active cooling. This ensures that the LEDs are kept stable and intense throughout their working life. As new wavelengths are required, and intensity of LEDs continues, additional LED Array Modules (LAMs) can be added and interchanged in the unit.

CoolLED is a specialist manufacturer with experience in the development of systems and applications requiring stable, high-intensity, thermally-managed LEDs. Products include precisExcite and a range of UV curing systems for applications such as curing printer inks.

Author:

Julian Heath

Publisher:

Microscopy and Analysis

Date:

25-Apr-08

Categories:

E02: Lasers, Lenses, Optics 

Sections:

News

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