A Hamiltonian viewpoint in the modeling of switching power converters

A headlamp position indicator device is used to visually indicate the "zero position" of a headlamp in a headlamp arrangement. The headlamp arrangement generally includes a movable reflector mounted in a stationary component. The device includes a metal spring clip having a bubble level assembly mounted thereon. The clip is attached to a pocket formed on the reflector at an attachment point. An adjusting screw is provided on the device, and when engaged against a surface of the reflector, causes flexure of the clip proximate to the attachment point to adjust the position of the device relative thereto. Specifically, flexure of the clip occurs between the attachment point and the point where the bubble level assembly is affixed to the clip. To adjust the position of the device relative to the reflector after the headlamp has been adjusted to the desired zero position, the adjusting screw is rotated to cause the bubble level assembly and base portion of the spring clip to move along the length of the adjusting screw until an air bubble in the bubble level assembly is centered. Once centered, the zero position of the headlamp is indicated. If the headlamp becomes misaligned, it is easily returned to its zero position by adjustments using the adjustor mechanism. When the air bubble becomes re-centered, the headlamp has been reset to its zero position.

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