The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1989
Filed:
Apr. 27, 1987
Edward A Gahan, Holland, MI (US);
Donnelly Corporation, Holland, MI (US);
Abstract
The specification discloses an automatic rearview mirror which more accurately responds to the glare-reduction needs of the vehicle operator. The mirror includes a reflective element, a light sensor, and a control circuit for regulating the reflective state of the mirror in response to the light sensor. The light sensor includes a detector responsive to electromagnetic wavelengths and a filter for filtering the wavelengths received by the detector so that the spectral response of the light sensor approximates the spectral response of the human eye or standard C.I.E. observer. The light sensor therefore detects the same wavelength intensities as does the vehicle operator.