Abstract:
A height adjustable platform can include a work surface, a lock rod, and can include a brake assembly. The brake assembly can be sized and shaped to receive the lock rod. The brake assembly can be adapted to couple with the work surface. The brake assembly can be adapted to selectively translate with respect to the lock rod.The brake assembly can include a first torsion spring having a first inner portion and can include a second torsion spring having a second inner portion. The first inner portion and the second inner portion can be sized and shaped to receive the lock rod. The first inner portion can selectively engage with the lock rod. The second inner portion can selectively engage with the lock rod. The brake assembly can include a locked configuration, an unlocked configuration, and can include a safety configuration.
Abstract:
An apparatus and method for measuring displacement includes a light beam directed to an interferometer core that splits the light beam into first and second component beams. The first component beam is directed to a diffraction grating at approximately a Littrow angle. A diffraction is received by the interferometer core and is combined with the second component beam. The combination of the first and second component beams is measured to determine displacement of the diffraction grating.
Abstract:
A digital coin timepiece that generates a tactile presentation which indicates elapsed time including a body member that includes a tactilely readable display surface that provides haptic feedback comprising first vibrations in a first location on the display surface when the tactilely readable display surface is touched by a user, with the first vibrations providing haptic feedback representing an actual minute or elapsed minutes so that the user can determine the actual or approximate time without having to view the display surface.
Abstract:
A mobile workstation can include a head unit assembly. A worksurface can be coupled to the head unit assembly and configured to translate with respect to the head unit assembly between an open configuration and a closed configuration. A glide can be rotatably coupled to the head unit assembly and engaged with the worksurface. The glide can include a latch configured to translate with respect to a glide body of the glide. The mobile workstation can include a worksurface opening mechanism having a locking configuration and an unlocking configuration. The worksurface opening mechanism can include a latch release handle moveably coupled to the head unit assembly. Movement of the latch release handle can transition the worksurface opening mechanism between the locked configuration and the unlocked configuration. A release assembly can selectively engage with the first latch. A lift system can bias the worksurface away from the head unit assembly.
Abstract:
A new and distinctly salt and boron tolerant poplar tree cultivar named “RRR Yellow,” is particularly distinguishable by its ability to tolerate and grow in soil with high concentrations of salt, boron and selenium. The cultivar was originally discovered as a sport through stringent selection of cultivated poplar trees, and potentially from isolation of a single unique sapling or sport that exhibited high levels of salt and boron tolerance necessary for survival, and then propagated into the “RRR Yellow” cultivar.
Abstract:
A digital coin timepiece that generates a tactile presentation which indicates elapsed time including a body member that includes a tactilely readable display surface that provides haptic feedback comprising first vibrations in a first location on the display surface when the tactilely readable display surface is touched by a user, with the first vibrations providing haptic feedback representing an actual minute or elapsed minutes so that the user can determine the actual or approximate time without having to view the display surface.
Abstract:
A Littrow encoder is disclosed. The encoder includes first and second interferometers and a beam splitter assembly that splits a first instrument light beam into first and second interferometer input beams and directs these beams into the first and second interferometers, respectively. Each interferometer generates a measurement beam and a reference beam and directs the measurement beam toward a grating on a surface from which the measurement beam is diffracted, the measurement beam from the first interferometer striking the surface at a Littrow angle that is the negative of the angle at which the measurement beam from the second interferometers strikes that surface. Each interferometer includes at least one intensity detector that generates a signal related to an intensity of light in a combined light beam that includes the reference and measurement beams from that interferometer.
Abstract:
A Littrow encoder is disclosed. The encoder includes first and second interferometers and a beam splitter assembly that splits a first instrument light beam into first and second interferometer input beams and directs these beams into the first and second interferometers, respectively. Each interferometer generates a measurement beam and a reference beam and directs the measurement beam toward a grating on a surface from which the measurement beam is diffracted, the measurement beam from the first interferometer striking the surface at a Littrow angle that is the negative of the angle at which the measurement beam from the second interferometers strikes that surface. Each interferometer includes at least one intensity detector that generates a signal related to an intensity of light in a combined light beam that includes the reference and measurement beams from that interferometer.
Abstract:
An apparatus for manipulating a path of a beam includes a first wedge and a second wedge. The first wedge includes a first refractive surface and a second refractive surface. The second wedge includes a third refractive surface adjacent to the second refractive surface, and a reflective surface. The beam refracts at the first refractive surface, refracts at the second refractive surface, refracts at the third refractive surface, reflects from reflective surface, refracts at the third refractive surface, refracts at the second refractive surface, refracts at the first refractive surface. At least one of the first wedge and the second wedge can be rotated so that the beam exiting the apparatus can be oriented substantially orthogonal to the beam entering the apparatus.