L. C. sunroof panel with adjustable shading

Details L. C. sunroof panel with adjustable shading L. C. sunroof panel with adjustable shading

1984-10-15

1987-08-25

Evans, Arthur G.

350580, G01F 113

Patent

active

046888950

ABSTRACT:
A shading system comprising a liquid crystal panel made up of individual zones. The panel is illustrated in application to a motor vehicle sunroof to provide selective shading of the interior of the vehicle passenger compartment. A control system is associated with the zones of the liquid crystal panel to develop particular shading patterns by the selective energization of particular zones. Manual controls may be used to establish the desired shading pattern, and an automatic control capability is also provided whereby once a desired shading pattern has been set by use of the manual controls, the automatic control can energize the appropriate zones as the relative position of the sun to the vehicle changes so that the same interior space as originally set continues to be shaded. A joy stick controls the position of the shade, a size potentiometer controls the size of the shade, and a density potentiometer controls the degree of opaqueness of the shade.

REFERENCES:
patent: 3961181 (1976-06-01), Golden

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