Abstract: A wavelength shifting filter having two sheets of material adjacent and parallel with a spacer therebetween about the periphery of the sheets. The sheets are held in a frame. A phosphor coating is located on the inner side of one of the sheets. A transilluminator is associated with the filter and provides radiation in the UV wavelength. One sheet of the filter transmits the UV wavelength. The other sheet transmits at least a portion of the wavelength that the phosphor coating generates when subjected to the UV radiation of the transilluminator. The visual effect of white light is enhanced by the use of white glass.

Abstract: A transilluminator having two sets of tubes selectively providing light in the ultraviolet and visible ranges. The sets of tubes are arranged in two rows on opposite sides of a reflector in a housing having windows with lenses in opposite sides. The two sets of tubes have separate circuits sharing a common ON/OFF switch and a mercury switch mounted to the housing. With the device on, the orientation of the housing determines which of the two sets of tubes is on and which is off. Two sets of mounts to stably retain the housing on a planar surface are arranged on the opposite sides so that the housing may be positioned and used in two orientations. In either orientation, the upwardly facing lamps are energized while the downwardly facing lamps are turned off.

Abstract: A UV transilluminator having three sets of tubes selectively providing ultraviolet light in the short, mid and long ranges. The sets of tubes are arranged in two rows with the upper row including alternating tubes of the first and second set. One of the first and second sets of tubes is transparent to UV radiation. The third set of tubes is arranged in the second row directly behind the transparent tubes of the other set. A filter overlies the sets of tubes with the transparent tubes located between the third set of tubes and the filter.

Abstract: A compact, easy to use apparatus for irradiating an object such as a specimen of material with ultraviolet radiation at a selected long, short or mid-wave length. The apparatus of the invention includes a plurality of ultraviolet sources, each emitting radiation at a different wave length. The sources are mounted within a rotatable array so that a selected one of the sources can be sequentially moved into alignment with the specimen and then automatically energized by merely rotating the array.

Abstract: A compact automatic apparatus for rapidly curing photosensitive coatings on eyeglass lenses. A precision adjustable automatic programmer controls process cycling, ultraviolet intensity and radiation time. A control panel is used to switch the apparatus on or off and to manually select cycle parameters. The apparatus electronically monitors radiation intensity and uses a flashing light to warn the operator of low ultraviolet intensity. Apparatus components are cooled by a filtered force air convection system that prevents flow of unfiltered air into the apparatus. An automatically programmed linear motion lens transport carriage passes through an automatic outer door which allows inward and outward passage of the lens while protecting the operator from ultraviolet radiation. The outer door shields the machine interior from dirt and dust.

Abstract: A high intensity lamp has a housing formed by first and second housing halves fitted together, a rear cover and a front cover. The first and second housing halves have a handle integrally formed therewith so that the lamp is portable. The housing encases a socket, the high intensity lamp source, a lamp shield and a filter, as well as part of a power cord. The front cover is releasably attached to the first and second housing halves. The filter is releasably attached to the housing halves by means of a retainer, disposed in the housing halves, having inwardly inclined tongs with respect to the housing, which hold therebetween a projection from the filter. The rear cover and each housing half has several elongated ventilation slots. The front cover has feet on which the lamp can rest. The feet are reinforced by ribs which serve, together with tabs, to hold a splash shield in place in the cover.