Abstract: A laser system according to an example of the present disclosure comprises: a supercontinuum laser that generates light with a visible wavelength; a wavelength selector comprising a filter whose angle is adjustable and configured to filter the wavelength of light incident from the supercontinuum laser to have a wavelength corresponding to the angle of the filter based on the angle of the filter; a compressor configured to compress the pulse width of light incident from the wavelength selector; and, a non-linear crystal configured to convert the wavelength of light incident from the compressor into an ultraviolet wavelength.

Abstract: The present invention provides a light source apparatus and method for integrating diffused light with high efficiency using a collimating including an axicon lens, collimating it, tuning the wavelength of desired light, and passing it.

Abstract: Correction of a non-invasive blood glucose measurement measured from a video image. Correction includes irradiating white light on the skin, filtering the white light reflected from the skin by a first wavelength filter and a second wavelength filter, obtaining a first signal including a blood glucose signal and a pulse signal based on a video image generated by the white light filtered by the first wavelength filter, obtaining a second signal including a pulse signal based on a video image generated by the white light filtered by the second wavelength filter, obtaining a blood glucose signal by subtracting the second signal from the first signal, and calculating the amount of blood glucose in a subcutaneous blood vessel based on the obtained blood glucose signal. Moreover, fundamental blood glucose signals can be extracted in real time without collecting blood.