Instrument cluster with laser beam illumination

Details Instrument cluster with laser beam illumination Instrument cluster with laser beam illumination

2007-03-20

2007-03-20

Punnoose, Roy M. (Department: 2877)

Optics: measuring and testing

Position or displacement

C345S007000, C345S030000, C345S031000, C345S032000, C345S055000, C340S461000, C340S525000

Reexamination Certificate

active

10834487

ABSTRACT:
An automotive instrument cluster containing a grouping of display fields representing measured automotive operating quantities such as speed, temperature and pressure. Illumination markers which are analogs of pointers are created within the display fields from a single beam-type light source by means of a multi-faceted rotating mirror and a controller which correlates measured signal quantities representing the vehicle operating quantities to mirror angle in turning the light source on so as to create an illumination marker at a strategic position within each of the display fields. The display is refreshed 50 times per second so as to create the appearance of a continuous marker in each of the display fields. Calibration is provided by means of a separate diode sensor.

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