Abstract: A wide-field optical microscope and method capable of resolving images down to 0.1 {acute over (?)} with a magnification range in excess of 250 million power includes an objective having a primary and a secondary element. A sample is held so that the area of interest is at a location that is closer to the primary element than the focal length of the primary element. The primary element collects and collimates light reflected from the sample. The secondary element then focuses the collimated light onto a pinhole aperture, which blocks all light rays that were not parallel, thus producing a non-focused reflected pattern. The non-focused reflected pattern passes through a field stop and is then magnified by one or more negative optical elements and additional field stops to produce an enlarged pattern.

Abstract: A wide-field optical microscope and method capable of resolving images down to 0.1 ? with a magnification range in excess of 250 million power includes an objective having a primary and a secondary element. A sample is held so that the area of interest is at a location that is closer to the primary element than the focal length of the primary element. The primary element collects and collimates light reflected from the sample. The secondary element then focuses the collimated light onto a pinhole aperture, which blocks all light rays that were not parallel, thus producing a non-focused reflected pattern. The non-focused reflected pattern passes through a field stop and is then magnified by one or more negative optical elements and additional field stops to produce an enlarged pattern.

Abstract: The present invention comprises a kit for assembling a passive air freshener comprising fragranced sail crystals. In the preferred form, the kit minimally comprises: 1) a package containing a plurality of fragranced salt crystals; 2) a container with an opening for placing said crystals therein, said container defining an enclosed space having a height/width ratio of from about 0.5 to about 3; and, 3) a carton for containing both the package of crystals and the container, where the carton preferably has a viewing window that displays at least the decorative aspects of the container design to potential purchasers. The kit may also include instructional literature and optional lighting source.

Abstract: An air freshener is described that comprises salt crystals coated with a premix comprising fumed silica, a nonionic emulsifier and a fragrance oil.