Abstract: (57) Abstract: The invention relates to a medical laser treatment module, which comprises a laser radiation source for generating a fundamental wavelength &lgr;1 and which is highly variable in use. According to the invention, the medical laser treatment module is characterized in that it comprises at least one means (2, 3) for generating laser radiation of another wavelength &lgr;1, &lgr;3 and at least one means for optionally injecting the laser radiation of the fundamental wavelength &lgr;1 into the means for generating the wavelength &lgr;2, &lgr;3. The laser module designed in such a manner can be used, in particular, in dentistry and both as an intergratable module and as a fixed component of a treatment unit.

Abstract: An apparatus and a method for moving an elevator door utilizes computed travel curves to control a door drive. The actual speed and position of the door are inputs to a travel curve computer in which travel curve algorithms are stored. Constants used in the algorithms are freely selectable and are communicated to the computer through a terminal connected to the computer. The computer generates target values a regulator which controls a power unit connected to the door drive motor for the opening, closing and reversing operations of the door.