Abstract: A method and mechanism is disclosed for identifying and tracking nets in an electrical design. A hierarchical design does not have to be flattened to perform the operation of identifying and tracking nets. To identify sets of connected shapes, instead of having to unfold the entire design hierarchy, only the specific instances of shapes falling within the geometric bounds of shapes identified as being part of a net needs to be unfolded to perform the search. When composing the list of nets for a hierarchical design, the unfolded shapes at other hierarchical levels of the design can be derived based upon virtual terminal structures that implicitly references nets and objects at other levels.

Abstract: A door assembly for a cooking apparatus is provided that prevents heat generated in a cooking chamber from being released to the outside while also being as thin as possible. The door assembly may include a glass support that supports a first glass panel on a front side, and a second glass panel on a rear side. The second glass panel may be supported by a seating protrusion and catching protrusions formed on the rear side of the glass support. A door frame may be coupled to the rear side of the glass support, with a third glass panel coupled to either a front or rear side thereof. A cover frame may be coupled to the rear side of the glass support to enclose the first, second and third glass panels and the door frame.

Abstract: A light source device is provided for separating light into several light components with a plurality of colors or hues which includes a source of white light and at least one dichroic filter carried on an envelope of the light source device. The filter selects a particular wavelength band from a visible light spectrum and transmits only light from the selected wavelength band therethrough. The filter includes a mirror for reflecting light having a wavelength band other than the selected wavelength band whereby all transmitted light exits the device in different combinations of colors or hues. Several filters and mirrors may be arranged adjacent to each other with respect to the light source and the apparatus therefore transmits ideally 100% of the light from the light source and no additional means are required for dissipating or absorbing the non-selected wavelength bands since all bands or rays are included in the multi-colored emission.