Patent ID: 8351041

Claim:
A method of observing biological tissue being skin or keratinous fiber, the method comprising: (a) injecting light centered on a first wavelength (λ 1 ) into a second end portion of a fiber bundle such that the light travels through fibers of the fiber bundle and illuminates a surface of the tissue near a first end portion of the fiber bundle; (b) collecting reflected light from the surface of the tissue with the first end portion of the fiber bundle such that the reflected light travels back via the fibers to the second end portion of the fiber bundle; and (c) observing at least one image of the tissue produced by reflected light emanating from the second end portion of the bundle at a second wavelength (λ 2 ) that is different from the first wavelength, wherein the at least one image is processed so as to determine information associated with corneocytes and wherein each fiber corresponds to one pixel of the image.