Abstract: A rotating compensator spectroscopic ellipsometer or polarimeter system having a source of a polychromatic beam of electromagnetic radiation, a polarizer, a stage for supporting a material system, an analyzer, a dispersive optics and a detector system which comprises a multiplicity of detector elements, the system being functionally present in an environmental control chamber and therefore suitable for application in wide spectral range, (for example, 130-1700 nm). Preferred compensator design involves a substantially achromatic multiple element compensator systems wherein multiple total internal reflections enter retardance into an entered beam of electromagnetic radiation, and the elements thereof are oriented to minimize changes in the net retardance vs. the input beam angle resulting from changes in the position and/or rotation of the system of elements.
Type:
Grant
Filed:
August 5, 2007
Date of Patent:
November 10, 2009
Assignee:
James D. Welch
Inventors:
John A. Woollam, Blaine D. Johs, Craig M. Herzinger, Ping He, Martin M. Liphardt, Galen L. Pfeiffer
Abstract: Disclosed are adjustable size dies for use in case making systems. Also disclosed are methods of adjustment, alignment and of use of the adjustable size dies in case making systems which are especially well suited for use in the practice of book binding. Appropriate practice of the present invention provides a very user friendly approach to accommodating the binding of books of different sizes without the need to rebuild dies in standard book binding case making machines, as is presently the common practice.
Abstract: A system and method for use in quickly and easily removing bearings or collars from shafts, without damaging the shafts, is disclosed. The system comprises a frame to which are attached a slider and breaking point members, which slider and breaking point members can be adjusted to accept bearings or collars of varying sizes, and contain them in a stable manner so that a force can be imparted to the breaking point members, thereby causing the bearing or collar to break and be removed from the shaft to which it was mounted. The system is constructed to allow replacement of the slider, breaking point members and other elements, for instance when they become worn through use.