M340L4: 340 nm UV LED Lighting for Biomedical and Laboratory Applications
The Thorlabs M340L4 mounted LED is specially designed for the precise needs of medical laboratories, biomedical research facilities, and fluorescence imaging or microscopic illumination systems. With a nominal wavelength of 340 nm, it is located in the deep ultraviolet spectrum, ideal for exciting certain fluorophores or for spectroscopic analysis applications requiring a concentrated and reliable UV source.
Mounted on a Ø30.5 mm cylindrical heat sink, the M340L4 offers effective passive cooling, essential for maintaining optical power stability. The LED element, measuring 1 mm x 1 mm, provides a typical power output of 60 mW, with a wide emission angle of 110°, allowing for uniform coverage across the field of illumination. Its spectrum, with a full width at half maximum (FWHM) of 11 nm, is particularly suitable for systems requiring a narrow spectral bandwidth.
It is designed to operate at a constant current (up to 700 mA) at a voltage of 4.6 V, ensuring optimal performance without the risk of overheating or excessive power loss. Its typical lifetime of over 3,000 hours makes it an economical choice for environments where stability and longevity are crucial.
Featuring an M8x1 circular connector, it is compatible with Thorlabs current drivers, ensuring precise control of light intensity. The integration of an EEPROM memory allows for automated management when used with Thorlabs systems. To ensure optimal lifetime and prevent overheating, good ventilation of the environment is essential.
The M340L4 complies with IEC 62471:2006, classified in risk group RG0 (photobiological risk exempt), making it safe for use in professional medical optical systems when used in accordance with best practices.
It is intended for integration as a light source in more complex devices, such as fluorescence microscopes, biomedical analysis systems, or UV optical instruments in laboratories.
