Abstract: A system and device that measures a specimen's surface profile by passing a bright white light source through a series of lenses which generate repeatable chromatic focal shift variations of wavelengths of white light for Z axis measurements. The movement of the sensor along an X-Y raster pattern is controlled by a X-directional and Y-directional scanner used in combination with X and Y actuators. The system and device translate the chromatic focal shifts into digital data which may then be used to both control the position of the lenses along the surface of the specimen and generate a 3D topographical images of the specimens being profiled.

Abstract: A system and device that measures a specimen's surface profile by passing a bright white light source through a series of lenses which generate repeatable chromatic focal shift variations of wavelengths of white light for Z axis measurements. The movement of the sensor along an X-Y raster pattern is controlled by a X-directional and Y-directional scanner used in combination with X and Y actuators. The system and device translate the chromatic focal shifts into digital data which may then be used to both control the position of the lenses along the surface of the specimen and generate a 3D topographical images of the specimens being profiled.

Abstract: A dental illumination system includes an adjustable self-supporting frame and a lamp head coupled to the frame. The lamp head includes a housing and a spacer having formations that is adapted to removably mechanically couple the lamp head to a reference device, again having formations, for facilitating illumination of a tooth by a light source contained within the lamp head. The spacer and lamp head may be formed integrally. If formed separately, both the lamp head and the spacer may include formations.

Abstract: An LED area illumination source/display (10) such as an electronic billboard is made up of a number of individual pixels with each pixel including a number of LEDs, e.g., a red (18), blue (19) and green LED (20), with each LED representing a primary color being arranged to be energized separately. At least one light sensor (22) is incorporated into the display for providing a measure of the light emitted from each LED representing a primary color in each pixel. The source/display (10) is susceptible of being self-calibrated by initially energizing the LEDs (18, 19, 20) at less than a maximum level and increasing the energization level as necessary during use to restore the original light output of degraded LEDs.

Abstract: A dental illumination system includes an adjustable self-supporting frame and a lamp head coupled to the frame. The lamp head includes a housing and a spacer having formations that is adapted to removably mechanically couple the lamp head to a reference device, again having formations, for facilitating illumination of a tooth by a light source contained within the lamp head. The spacer and lamp head may be formed integrally. If formed separately, both the lamp head and the spacer may include formations.

Abstract: A vehicle viewing system for use on vehicles to enhance the vehicles' safe operation by minimizing blind spots. The system has an objective assembly mountable on the vehicle with its field of view substantially encompassing a blind spot. The images within the field of view are carried from the objective assembly to a viewer assembly via an image relay system. The image relay system may be a conventional fiber optic cable or a periscope assembly mounted between two fiber optic cables to extend the image transmission. The periscope assembly utilizes a lens assembly to relay images. The viewer assembly is mountable in an easy-to-see location on the vehicle suitable for viewing by the vehicle operator. The objective assembly has a lens system to enable the system to present continuous color images for viewing.

Abstract: An air-in-line detector for use with an IV administration system comprises a light emitter positioned relative to a plurality of light sensors for receiving an IV tube therebetween. A comparator is connected with the light sensors to determine the relative intensity of light respectively incident on each sensor. Means connected with the comparator generates signals in accordance with the relative intensities to indicate whether an IV tube is present and, if so, whether there is fluid or air in the tube.