Abstract: A method for sorting products including the steps of conveying the products in a product stream, scanning the products in the product stream casting light onto the products on the basis that certain products will emit light, observing emitted light from the products, making a selection of certain products from the product stream as a function of the observed light, and separating certain products from the product stream as a function of the selection. A device is provided that is arranged to sort the products according to the method of the invention and includes a light device that is arranged to cast light onto products and an observation device that is arranged to observe light emitted from the products. A selection device is also provided that is arranged to make a selection of whether to separate certain products from the product stream observed by the observation device.

Abstract: A method has been described for preparing a light-sensitive silver halide photographic emulsion comprising performing at least three distinct precipitation steps in an aqueous medium into a reaction vessel, followed by desalting by means of flocculation and washing or by means of ultrafiltration, said emulsion comprising a colloidally stabilizing binder and {100} tabular silver halide grains containing at least 50 mole % of silver chloride, wherein at least 60% by number of all grains is provided by said tabular grains, and wherein said tabular grains exhibit an average aspect ratio of at least 2, an average thickness of at most 0.25 .mu.m with a variation coefficient of at most 0.25, and an average equivalent circular crystal diameter of 0.3 .mu.m or more with a variation coefficient of at most 0.