Reflection controllable view mirror device for motor vehicle or the like

  • US 4,603,946 A
  • Filed: 09/22/1983
  • Issued: 08/05/1986
  • Est. Priority Date: 09/29/1982
  • Status: Expired due to Fees
  • ×
    • Pin Icon | RPX Insight
    • Pin
First Claim
Patent Images

1. A reflection controllable rear view mirror device having an electro-optical means, the transmittance of which varies in accordance with voltage applied thereto to change a quantity of light passing therethrough, and a mirror means mounted on the electro-optical means for reflecting said light, comprising:

  • (A) a photo-sensitive means for simultaneously receiving both light passing through the electro-optical means and light, the quantity of which is not varied by the electro-optical means,said photo-sensitive means producing electric signals, the magnitude of which signals correspond with the summation of the light passing through the electro-optical means and the light, the quantity of which is not varied by the electro-optical means, and(B) a control circuit for controlling voltage applied to the electro-optical means so that the magnitude of the electric signals produced by the photo-sensitive means may become equal to a predetermined value.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×