Abstract: A beam folder increases optical length with polarizing beam splitters and reflectors that repolarize a beam by retarding it. An incident beam encounters the beam splitters multiple times, and are both passed and rejected by the same splitters. The splitters and repolarizing reflectors can be shaped to perform optical functions in a smaller volume. Valves and controls can varyl the beam intensity and combine multiple beams. Applications include projection, imaging, collimating, mixing, and balancing.

Abstract: The present invention is directed to a method of reprogramming a field device in a process control network using the standard communications protocol for the network, and a reprogrammable field device in the process control network adapted for being reprogrammed using the standard communications protocol for the network. The method and device of the present invention use the standard communications protocol to transmit the downloaded code to the field device and store the downloaded code in the field device while the device is enabled to perform process control. Once the new code is downloaded and stored in the field device, the field device is set to a steady state condition and/or disabled from performing process control, reprogrammed to execute the downloaded code, and reenabled to perform process control.

Abstract: A beam folder increases optical length with polarizing beam splitters and reflectors that repolarize a beam by retarding it. An incident beam encounters the beam splitters multiple times, and are both passed and rejected by the same splitters. The splitters and repolarizing reflectors can be shaped to perform optical functions in a smaller volume. Valves and controls can varyl the beam intensity and combine multiple beams. Applications include projection, imaging, collimating, mixing, and balancing.

Abstract: A beam folder increases optical length with polarizing beam splitters and reflectors that repolarize a beam by retarding it. An incident beam encounters the beam splitters multiple times, and are both passed and rejected by the same splitters. The splitters and repolarizing reflectors can be shaped to perform optical functions in a smaller volume. Valves and controls can vary the beam intensity and combine multiple beams. Applications include projection, imaging, collimating, mixing, and balancing.

Abstract: An arm holding device. The device includes a waist band, a groin strap fitted with an attachment/release buckle, and arms bands which are slidably attached to the waist band. The attachment/release buckle on the groin strap makes placing and removing the device on the patient a simple process. The slidably attached arm bands give the patient limited movement of their arms, while effectively holding the arms of the patient to prevent the patient from aggravating an injury. The device is made of flexible materials to provide as much comfort as possible for the patient, while still being effective.

Abstract: A beam folder increases optical length with polarizing beam splitters and reflectors that repolarize a beam by retarding it. An incident beam encounters the beam splitters multiple times, and are both passed and rejected by the same splitters. The splitters and repolarizing reflectors can be shaped to perform optical functions in a smaller volume. Valves and controls can varyl the beam intensity and combine multiple beams. Applications include projection, imaging, collimating, mixing, and balancing.

Abstract: A dental floss dispenser having a shape or attaching elements which allows it to be held during flossing. One embodiment has a finger spool which is worn on the finger tip or finger during flossing. The dental floss dispenser may also incorporate a finger grip so that the dispenser can be held by the lower fingers, a contoured shape to better fit the hand of the user, a wide or weighted base for easy pick-up, or a U-shaped indentation for quickly grabbing dental floss at the commencement of flossing. A take up spool is designed to be used during the flossing procedure as an anchor for the dental floss to thereby allow the user to floss without wrapping floss around a finger or fingers. The take up spool is incorporated into the handle of a toothbrush. By using the dispenser or the take up spool in the flossing procedure, time is saved and flossing becomes more convenient and efficient.