Abstract: An optical unit for an optical sorter can simplify the assembling operation and the installing operation of the optical sorter through unifying components of an optical section of the optical sorter for sorting objects to be sorted such as a granular object or a sheet object. The optical unit includes an optical detection means for detecting the object to be sorted, an ejector means for ejecting the object to be sorted, a discrimination means for processing detection signal from the optical detection means to make a quality discrimination of the sorted objects, and an ejector driving means for driving the ejector means based on the quality discrimination of the discrimination means. The optical detection means, the ejector means, the discrimination means, and the ejector driving means are integrated into a housing to unify them to provide the optical unit.

Abstract: An optical unit for an optical sorter can simplify the assembling operation and the installing operation of the optical sorter through unifying components of an optical section of the optical sorter for sorting objects to be sorted such as a granular object or a sheet object. The optical unit includes an optical detection means for detecting the object to be sorted, an ejector means for ejecting the object to be sorted, a discrimination means for processing detection signal from the optical detection means to make a quality discrimination of the sorted objects, and an ejector driving means for driving the ejector means based on the quality discrimination of the discrimination means. The optical detection means, the ejector means, the discrimination means, and the ejector driving means are integrated into a housing to unify them to provide the optical unit.

Abstract: An object of the present invention is to provide a glucan containing at least one residue selected from an N-acetylglucosamine residue and a galactose residue, and a modified product. The branched glucan of the present invention is a branched glucan wherein the branched glucan has a plurality of non-reducing ends and at least one residue selected from an N-acetylglucosamine residue and a galactose residue is bound via an ?-1,4-bond to each of two or more non-reducing ends of the branched ?-1,4-glucan, but neither an N-acetylglucosamine residue nor a galactose residue is present at the position other than the non-reducing ends of the branched ?-1,4-glucan.