Patent ID: 8658989
Filing Date: 2014-02-25
Classification: G01N

Abstract:
1. A fluorometric assay apparatus comprising: an LED light source configured with at least two types of excitation LED that have different principle wavelengths from each other and are disposed in a two dimensional array on a substrate; an imaging lens for imaging a subject; a single excitation filter provided between the LED light source and a subject, the single excitation filter transmitting each of principle wavelength components of the LED light source; and a single detection long pass filter provided between the imaging lens and the subject, wherein the at least two types of LED comprise a near ultraviolet LED with a principle wavelength component of 312 nm or 365 nm and a blue LED with a principle wavelength component of 470 nm, and the single excitation filter is a band pass filter that transmits light of a band from near ultraviolet to blue, and wherein the LED light source is configured by a two dimensional array disposed on a substrate such that the number of individual near ultraviolet LEDs per unit surface area of the substrate increases compared with the number of the blue LEDs as the separation distance between a surface area of the substrate and the subject gets shorter.