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On-vehicle multidirectional visual-recognition device

  • US 8,562,155 B2
  • Filed: 06/23/2010
  • Issued: 10/22/2013
  • Est. Priority Date: 07/14/2009
  • Status: Active Grant
First Claim
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1. An on-vehicle multidirectional visual-recognition device comprising:

  • a first visual-recognition mechanism having a first attenuation factor, said first visual-recognition mechanism comprising;

    a door window for a front door of a vehicle; and

    a door mirror of a door mirror mechanism provided on a vehicle-body side portion, which includes the front door, in a vicinity of an outer side of the door window so as to show a rear side of the vehicle; and

    a second visual-recognition mechanism comprising;

    a first mirror provided in a door-mirror housing of the door mirror mechanism so as to show a range from a side of the vehicle including an area below the door mirror mechanism to a front side of the vehicle;

    a sub window to transmit light reflected by the first mirror and to extend continuously from the door window toward the front side of the vehicle via a frame; and

    a second mirror to reflect the light transmitted through the sub window toward a vehicle occupant, the second visual-recognition mechanism having a second attenuation factor substantially equal to the first attenuation factor of the first visual-recognition mechanism,wherein the first attenuation factor is a value obtained by adding a reduction rate based on a transmittance of the door window to a reduction rate based on a reflectance of the door mirror,wherein the second attenuation factor is a value obtained by adding a reduction rate based on a transmittance of the sub window and a reduction rate based on a reflectance of the second mirror to a reduction rate based on a reflectance of the first mirror, andwherein the transmittance of the sub window of the second visual-recognition mechanism is greater than the transmittance of the door window of the first visual-recognition mechanism.

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