Abstract: An optical device includes a metal reflective layer substantially made of a metal material, a first light transmissive layer disposed on the metal reflective layer, an optical multilayer reflective film disposed on the first light transmissive layer and including a plurality of sublayers stacked on each other and having different refractive indexes, and a wavelength converting layer disposed on the optical multilayer reflective film and containing a fluorescent material capable of absorbing incident excitation light and generating fluorescent light having a lower energy. The wavelength converting layer is capable of generating mixed light containing the excitation light and the fluorescent light in response to irradiation with the excitation light.

Abstract: Apparatus for diverting articles from a belt conveyor at an article-discharge zone, wherein a diverter is moved from a position at the side of the belt to a position wherein it extends at an angle to the direction of movement of the belt transversely of the belt in the path of movement of the articles. The diverter is pivotally mounted to swing through an angle from its retracted position along one side of the belt to its extended position in which it extends across the conveyor at an angle so that articles encounter it and are diverted from the conveyor. The axis of the pivotal movement of the diverter is at the upstream edge of the article-discharge zone and is so positioned that the path of the downstream end of the diverter moves along an arc which intersects the near edge of the belt substantially opposite or downstream from the point where that arc intersects the far edge of the belt.