Domestic laundry-washing appliance or dishwasher and optical sensor therefor

A domestic laundry-washing appliance including an optical measuring device for obtaining measured values which are representative of a spectral transmission signature of a washing liquid used during operation of the laundry-washing appliance for cleaning textiles, and a control device which is adapted to categorise a cleaning agent contained in the washing liquid in respect of its chemical properties on the basis of the spectral transmission signature obtained, and to control the operation of the laundry-washing appliance in dependence on the categorisation result. The categorisation result can indicate, for example, a distinction between a heavy-duty detergent containing bleach and another bleach-free detergent. 本申请尤其公开了一种家用洗衣机，包括光学测量装置，该光学测量装置用于获得测量值，该测量值表示在用于清洁纺织品的洗衣机运行期间使用的洗涤液的光谱透射特征；和控制装置，该控制装置适用于基于获得的光谱透射特征关于洗涤液中包含的清洁剂的化学性质对清洁剂进行分类，并且根据分类结果来控制洗衣机的操作。分类结果可以表明，例如，含有漂白剂的重垢型清洁剂与另一种不含漂白剂的清洁剂之间的区别。