Fig. 6.

Secondary waves from a collagen fibril distribution presenting short-range order. Primary incoming light is travelling from left to right (yellow arrow), with a wavelength of 500 nm. Collagen fibrils in transverse sections are represented by brown circles. All fibrils have the same diameter of about 31 nm, and no collagen fibrils can be closer than 62 nm. Only the intensity of the secondary radiation arising from the fibrils is shown in blue. No backwards secondary radiation can be seen in the figure. Bar 500 nm.