US 9,870,753 B2 · Light sensor having partially opaque optic

Abstract

A rearview assembly for a vehicle is provided that includes: a housing configured for mounting to the vehicle; a rearview element disposed in the housing that displays images of a scene exterior of the vehicle; a light sensor assembly disposed in the housing; and a controller for receiving the electrical signal of the light sensor and for adjusting a brightness of the images displayed by the rearview element. The light sensor includes a light sensor for outputting an electrical signal representing intensity of light impinging upon a light-receiving surface of the light sensor, and a secondary optical element configured to receive light, wherein the light passes through the secondary optical element to the light sensor, the secondary optical element including a tint material that is substantially color neutral for attenuating light passing therethrough.

Claims11

Dependent claims

A light sensor package comprising:

an enclosure having a window for receiving light, the enclosure admitting at least a power connection pad, a ground connection pad, and an input/output pad;
an exposed light transducer disposed within the enclosure, the exposed light transducer operative to accumulate charge in proportion to light received through the window incident on the exposed light transducer over an integration period;
a light-to-pulse circuit in communication with the exposed light transducer, the light-to-pulse circuit operative to output a pulse on the output pin, the pulse width based on the charge accumulated by the exposed light transducer over the integration period;
and
a nonvolatile memory within the enclosure for storing data from which calibration data may be obtained for the light sensor package.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/341,933Filed 28 Jul 2014 · continuation in part

Priority

12 Feb 2013

Published

US 2015/0022543 A122 Jan 2015

Granted

16 Jan 2018

Term ends

Not estimatedThe source records don’t support an estimate.

Classification11 codes

G09G 5/10
Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: intensity circuits
B60R 1/088
Anti-glare mirrors, e.g. "day-night" mirrors: using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or…
G01J 1/26
Using electric radiation detectors: adapted for automatic variation of the measured or reference value
G01J 1/4228
Using electric radiation detectors: arrangements with two or more detectors, e.g. for sensitivity compensation

Family

Application13/764,971Parent of this continuation-in-part · filed 12 Feb 2013

Application61/858,820Us provisional application · filed 26 Jul 2013

US 2015/0022543 A1Pre-grant publication · published 22 Jan 2015

US 9,207,116 B2Parent of this continuation-in-part

US 2014/0224961 A1Published application

US 9,870,753 B2This patent

From the US filing history. Foreign family members aren’t listed.

Light sensor having partially opaque optic

Life of this patent

Light sensor having partially opaque optic

Life of this patent

Abstract

Claims11