Abstract: A spectrometer is disclosed, comprising: a light source configured to receive light from a scene; a diffraction grating configured to receive a light beam from the light source and to disperse the light beam to form a dispersed light beam, the diffraction grating comprising an axis of normal incidence and a plurality of grooves, these defining a plane that includes the axis of normal incidence and which is normal to the grooves; a detector configured to detect the dispersed light beam; wherein the angle of incidence, between the light beam and the axis of normal incidence in the plane, is 5 to 8 degrees, and the out-of-plane angle, between the light beam and the axis of normal incidence outside the plane is 1.5 to 4 degrees. A correcting lens may be provided, disposed between the diffraction grating and the detector.

Abstract: An apparatus applies dressing fluid to a bowling lane surface in a discrete pattern laterally across a plurality of zones on the bowling lane. A carriage, for movement along a bowling lane, has an applicator mounted thereon for applying the dressing fluid to the bowling lane surface. Dressing fluid is supplied from a reservoir by a plurality of pulse valves which supply the dressing fluid to a plurality of fluid dispersion chambers, each having an inlet connected to one of the pulse valves and having an outlet positioned to apply dressing fluid to the applicator. The outlet has a width equal to the width of one of the zones. A controller is provided for selectively activating each of the pulse valves to discharge a discrete amount of fluid dressing into each dispersion chamber. Each zone may be the width of one board across the bowling alley so that different discrete amounts of oil can be applied to each board.

Abstract: An apparatus applies dressing fluid to a bowling lane surface in a desired lane dressing pattern laterally across a plurality of zones on the bowling lane and longitudinally along a predetermined length of each of the zones. Each zone may be the width or a selected fractional width of one board across the bowling lane so that different discrete amounts of lane dressing can be applied to each board along a predetermined length. The apparatus includes a plurality of metering devices which supply lane dressing to corresponding lane dressing dispersion units which in turn supply lane dressing directly to an applicator. The applicator applies the lane dressing to the bowling lane according to the desired lane dressing pattern. A method is provided to supply discrete amounts of bowling lane dressing at desired incremental locations laterally across and longitudinally along a bowling lane.

Abstract: An apparatus applies dressing fluid to a bowling lane surface in a discrete pattern laterally across a plurality of zones on the bowling lane. A carriage, for movement along a bowling lane, has an applicator mounted thereon for applying the dressing fluid to the bowling lane surface. Dressing fluid is supplied from a reservoir by means off a plurality of pulse valves which supply the dressing fluid to a plurality of fluid dispersion chambers, each having an inlet connected to one of the pulse valves and having an outlet positioned to apply dressing fluid to the applicator. The outlet has a width equal to the width of one of the zones. A controller is provided for selectively activating each of the pulse valves to discharge a discrete amount of fluid dressing into each dispersion chamber. Each zone may be the width of one board across the bowling alley so that different discrete amounts of oil can be applied to each board.

Abstract: An apparatus applies dressing fluid to a bowling lane surface in a discreet pattern laterally across a plurality of zones on the bowling lane. A carriage, for movement along a bowling lane, has an applicator mounted thereon for applying the dressing fluid to the bowling lane surface. Dressing fluid is supplied from a reservoir by a plurality of pulse valves which supply the dressing fluid to a plurality of fluid dispersion chambers, each having an inlet connected to one of the pulse valves and having an outlet positioned to apply dressing fluid to the applicator. The outlet has a width equal to the width of one of the zones. A controller is provided for selectively activating each of the pulse valves to discharge a discrete amount of fluid dressing into each dispersion chamber. Each zone may be the width of one board across the bowling alley so that different discrete amounts of oil can be applied to each board.