Abstract: An optical device for modifying light distribution including a light-ingress surface and a light-egress surface. The light-ingress surface having convex areas and the light-egress surface comprises elevations so that the convex areas are configured to direct light to the elevations. Each elevation is configured to turn at least a part of light directed to the elevation sideward with respect to the height direction of the elevation. The convex areas of the light-ingress surface make it possible to direct the light to the elevations in a controlled way and thus the optical properties of the optical device can be designed more freely than for example in cases where the light-ingress surface is smooth or has depressions corresponding to the elevations so that the material thickness between the light-ingress and light-egress surfaces is constant.

Abstract: An optical device for modifying light distribution including a light-ingress surface and a light-egress surface. The light-ingress surface having convex areas and the light-egress surface comprises elevations so that the convex areas are configured to direct light to the elevations. Each elevation is configured to turn at least a part of light directed to the elevation sideward with respect to the height direction of the elevation. The convex areas of the light-ingress surface make it possible to direct the light to the elevations in a controlled way and thus the optical properties of the optical device can be designed more freely than for example in cases where the light-ingress surface is smooth or has depressions corresponding to the elevations so that the material thickness between the light-ingress and light-egress surfaces is constant.

Abstract: The present invention concerns an intravaginal delivery system, said system comprising at least one compartment comprising a core and a membrane encasing the core, wherein the core and the membrane essentially consist of a same or different polymer composition. Additionally the intravaginal delivery system comprises a coupling means to form a closed continuous delivery system. The present invention also concerns a method for manufacturing said intravaginal delivery system. The core and/or the membrane are preferably prepared by injection moulding or by extrusion.

Abstract: A transfer device for cassettes containing radioactive samples and a cassette system in a gamma counter provided with a well-type detector. The transfer device comprises a path (61), by which cassettes (11, 12, 13) can be moved one at a time to a lifting position where sample containers can be lifted and moved to the measuring unit (50) for measuring. At the lifting position a vertical long side of the cassette (11, 12, 13) is locked in place against a vertical surface or edge (63) of the table (61) so that the distance between the center of the sample container (17) in the cassette from the vertical surface or edge of the table is substantially directly proportional to the radius of the sample container. The cassette system comprises at least two different cassettes (11, 12, 13) which are of the same length but which can take a different number of adjacently placed sample containers (17 ) of different sizes. The sample containers in each cassette are the same size.