초록 ▼

The present invention provides a self-dimming mirror for a vehicle. The mirror includes a layer of microspheres which contain microparticles and a dielectric liquid. The microparticles have an electrical charge and move between a dispersed state and a segregated state in response to the polarity of

The present invention provides a self-dimming mirror for a vehicle. The mirror includes a layer of microspheres which contain microparticles and a dielectric liquid. The microparticles have an electrical charge and move between a dispersed state and a segregated state in response to the polarity of an electrical charge on an adjacent electrode. In a first embodiment, the microparticles are reflective and their reflectivity of an incidence light is determined by whether the microparticles are in the dispersed state or the segregated state. In a second embodiment, microparticles include a pigment layer and the transmissivity of an incidence light through the microsphere is determined by whether the microparticles are in a dispersed state or a segregated state. Thus, the present invention provides an electronic dimming mechanism for a mirror.

대표청구항 ▼

[ We claim:] [1.] A self-dimming mirror for a vehicle comprising:a support layer supporting a plurality of microspheres;each of said microspheres each having a dielectric liquid and a plurality of reflective microparticles, each of said reflective microparticles having an electrical charge of a firs

[ We claim:] [1.] A self-dimming mirror for a vehicle comprising:a support layer supporting a plurality of microspheres;each of said microspheres each having a dielectric liquid and a plurality of reflective microparticles, each of said reflective microparticles having an electrical charge of a first polarity and movable between a first state and a second state, wherein in said first state said microparticles are dispersed within said dielectric fluid and in said second state said microparticles are segregated within said dielectric fluid;said microspheres having a first reflectivity of an incidence light when said microparticles are in said first state and a second reflectivity of said incidence light when said microparticles are in said second state, said first reflectivity being less than said second reflectivity;a first electrode capable of alternating between said electrical charge of said first polarity and an electrical charge of a second polarity opposite said first polarity; andsaid microparticles moving between said first state and said second state in response to said first electrode alternating between said first polarity and said second polarity.