Method for multiple gauges in a scanning laser based display...

Details Method for multiple gauges in a scanning laser based display... Method for multiple gauges in a scanning laser based display...

2011-06-07

2011-06-07

Dzierzynski, Evan (Department: 2875)

Illumination

Illuminated scale or dial

C362S029000, C362S030000, C116S284000, C116S286000, C116S288000

Reexamination Certificate

active

07954965

ABSTRACT:
A display for measured quantities can include a gauge with a set of indicia spaced around the gauge to indicate the measured quantities. A window can be formed in the gauge that extends along the set of indicia. An elliptical reflector can be positioned such that a first focus of the elliptical reflector is on the same axis as the center of the gauge with this axis perpendicular to the axis connecting the foci. An optical device can be mounted on a shaft and be arranged to redirect a light beam from a second foci of the elliptical reflector onto the elliptical reflector to generate a virtual pointer in the window. Means can be provided for turning the shaft to rotate the optical device. A light source can project the light beam onto the optical device. Rotation of the optical device can enable the virtual pointer to be selectively aimed at the set of indicia.

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