Zinnia: UV Induced Visible Fluorescence - ultraviolet photography III

So, last few of those Zinnia examples that I have shown before indicating what could be done with Nichia based NC4U133 (365nm) / NC4U134 (385nm) systems and my 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 or the simple and now quite common 365nm Nichia flashlights which use the single dice NCSU033A and NCSU033B chips.

[click on image to see a larger one]

Creamy white Zinnia in visible light:  


 Creamy white Zinnia in UV induced visible fluorescence, variant 1:


 Creamy white Zinnia in UV induced visible fluorescence, variant 2:



Pinkish Zinnia in visible light:


Pinkish Zinnia in UV induced visible fluorescence, variant 1:  


Pinkish Zinnia in UV induced visible fluorescence, variant 2:  


I hope these shots also serve as example what could be done with those UV flashlights, but of course those are useful for many different applications such as stimulating visible fluorescence, reflected UV photography, forensic, dermatological and dental 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

Zinnia: UV Induced Visible Fluorescence - ultraviolet photography II

So, here more of those Zinnia examples that I have shown before indicating what could be done with Nichia based NC4U133 (365nm) / NC4U134 (385nm) systems and my 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 or the simple and now quite common 365nm Nichia flashlights which use the single dice NCSU033A and NCSU033B chips.

[click on image to see a larger one]

Pink Zinnia in visible light: 


Pink Zinnia in UV induced visible fluorescence, variant 1:  


Pink Zinnia in UV induced visible fluorescence, variant 2: 



Red Zinnia in visible light: 


Red Zinnia in UV induced visible fluorescence, variant 1:  


Red Zinnia in UV induced visible fluorescence, variant 2: 


I hope these shots also serve as example what could be done with those UV flashlights, but of course those are useful for many different applications such as stimulating visible fluorescence, reflected UV photography, forensic, dermatological and dental examinations and photographic recording, curing of UV glue / bonding, as well as leakage detection etc.

Stay tuned, more will follow on that fascinating subject as part III...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

Zinnia: UV Induced Visible Fluorescence - ultraviolet photography

Well, some people wonder what could be done with Nichia based NC4U133 (365nm) / NC4U134 (385nm) systems and my 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 or the simple and now quite common 365nm Nichia flashlights which use the single dice NCSU033A and NCSU033B chips. Well, here it is without much ado...

[click on image to see a larger one]

White Zinnia in visible light: 


White Zinnia in UV induced visible fluorescence, variant 1:  


White Zinnia in UV induced visible fluorescence, variant 2: 


I hope that serves as an example what could be done with those UV flashlights, but of course those are useful for many different applications such as stimulating visible fluorescence, reflected UV photography, forensic, dermatological and dental examinations and photographic recording, curing of UV glue / bonding, as well as leakage detection etc.

Stay tuned, more will follow on that fascinating subject as part II...

More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos

Nichia 365nm flashlight: Beam Homogenizer for reflected UV photography and UV induced visible fluorescence

Today, after having previously shown the Nichia based NC4U133 (365nm) / NC4U134 (385nm) systems and 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, I present something much easier: a simple beam homogenizing solution for the meanwhile quite commom 365nm Nichia flashlights which use the single dice NCSU033A and NCSU033B chips.

After a long search I finally located a specifically designed beam homogenizing solution that sufficiently transmits UV and allows to generate a quite even radiation field, which is beneficial to have, especially for photography which usually requires even illumination of the target.

I have also tested it working with the newer 4 dice Nichia NC4U133 (365nm) and NC4U134 (385nm) chips, but those are not used for portable flashlights yet as far as I know.

[click on image to see a larger one]

Radiation field without homogenizing solution: 


Radiation field with homogenizing solution: 


Transmission of the homogenizing solution in use:


Theses simple flashlights are useful for different applications, such as stimulating visible fluorescence, 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