Today, after having previously shown the Nichia based NC4U133 (365nm) / NC4U134 (385nm) systems, I present here my newest High Power UV LED Radiation System with easily exchangeable radiation heads for nominal wavelength of 365nm, 385nm, 395nm, 400nm and 405nm using the most modern 40W UV LEDs. [Other visible or IR wavelngth also possible as well as high power white light for comparison studies. Optional: infrared or wire remote system control]
A specifically designed beam homogenizing system allows a very even radiation field that can be factory adjusted to a desired size. One example being a 365nm (nominal) head with a 55mm radiation field, evenness of radiation <20%, precisely adjustable radiation strength 2 ... 30mW/cm². The AC operated system is cooled and has been designed for long term radiation sessions up to several hours.
[click on image to see a larger one]
Radiation Head with mounted homogenizing optics:
Homogenizing optics, beam exit aperture showing UV coated fused silica optics:
System in stable operation for some 10.000sec (3h) at full power:
The system is useful for different applications, such as very even UV radiation for photocatalytic processes, to stimulate visible fluorescence, for reflected UV photography, forensic, dermatological and detal examinations and photographic recording, curing of UV glue / bonding, as well as leakage detection etc.
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos