Exterior lighting and object detection assembly

Patent metadata

Field	Value
Publication number	US-9925912-B2
Application number	US-201514960637-A
Country	US
Kind code	B2
Filing date	Dec 7, 2015
Priority date	Dec 7, 2015
Publication date	Mar 27, 2018
Grant date	Mar 27, 2018

Abstract

An exterior lighting and object detection assembly for a vehicle operable in an exterior environment that includes an object includes a housing, a first light source, an inner lens, and an object detection device. The first light source is connected to the housing and emits light for a position light function of the vehicle. The inner lens is connected to the housing and has a first portion that receives and reflects the light from the first light source to the exterior environment of the vehicle to provide the position light function. The object detection device is connected to the housing and is operable to detect the object via an electromagnetic energy. The first portion of the inner lens is disposed between the object and the object detection device and is configured to permit the electromagnetic energy to pass through such that the object detection device detects the object.

First claim

The invention claimed is:

1. An exterior lighting and object detection assembly for a vehicle operable in an exterior environment including an object, comprising:
a housing;
a first light source connected to the housing and operable to emit light for a position light function of the vehicle;
an inner lens connected to the housing and having a first portion operable to receive light from the first light source and reflect the light from the first light source to the exterior environment of the vehicle to provide the position light function; and
an object detection device connected to the housing and operable to detect the object in the exterior environment of the vehicle via an electromagnetic energy;
wherein the first portion of the inner lens is disposed between the object and the object detection device and configured to permit the electromagnetic energy to pass through such that the object detection device detects the object in the exterior environment of the vehicle;
wherein the first portion of the inner lens has a smooth inner surface, a smooth outer surface, and an electromagnetic energy pass through portion; and
wherein at least one of the inner surface and the outer surface of the first portion of the inner lens is configured to form a correction lens in the electromagnetic energy pass through portion of the first portion of the inner lens to correct for refraction of the electromagnetic energy in the exterior lighting and object detection device.

2. The exterior lighting and object detection assembly of claim 1 , wherein the first portion of the inner lens is formed from a mixture of polymethyl methacrylate and polyetheresteramide.

3. The exterior lighting and object detection assembly of claim 1 , further comprising a trim panel connected to the housing;
wherein the trim panel is disposed adjacent to the inner surface of the first portion of the inner lens.

4. The exterior lighting and object detection assembly of claim 3 , wherein the trim panel is configured such that the object detection device is not visible from the exterior environment of the vehicle.

5. The exterior lighting and object detection assembly of claim 3 ,
wherein the trim panel has a smooth inner surface, a smooth outer surface, and an electromagnetic energy pass through portion; and
wherein the inner surface of the trim panel is substantially parallel to the outer surface of the trim panel in the electromagnetic energy pass through portion of the trim panel.

6. The exterior lighting and object detection assembly of claim 3 ,
wherein the trim panel has an electromagnetic energy pass through portion; and
wherein the trim panel is configured to form a correction lens in the electromagnetic energy pass through portion configured to correct for refraction of the electromagnetic energy in the exterior lighting and object detection device.

7. The exterior lighting and object detection assembly of claim 1 , wherein the electromagnetic energy is a radar wavelength electromagnetic energy.

8. The exterior lighting and object detection assembly of claim 1 , wherein the electromagnetic energy is a visible wavelength electromagnetic energy.

9. An exterior lighting and object detection assembly for a vehicle operable in an exterior environment including an object, comprising:
a housing;
a first light source connected to the housing and operable to emit light for a position light function of the vehicle;
a second light source connected to the housing and operable to emit light for at least one of a Daytime Running Light (DRL), a turn light, a stop light, and a tail light function of the vehicle;
a third light source connected to the housing and operable to emit light for a forward driving light function of the vehicle;
an inner lens connected to the housing, including:
a first portion formed from a homogenous mixture of polymethyl methacrylate and polyetheresteramide and operable to receive light from the first light source and reflect the light from the first light source to the exterior environment of the vehicle to provide the position light function; and
a second portion formed from polymethyl methacrylate without any polyetheresteramide and operable to receive light from the second light source and direct the light to the exterior environment of the vehicle through a light emitting edge of the second portion to provide the at least one of the DRL, the turn light, the stop light, and the tail light function of the vehicle;

an outer lens connected to the housing, formed from polycarbonate, and disposed outward of the inner lens to protect the third light source and the inner lens; and
an object detection device connected to the housing and operable to detect the object in the exterior environment of the vehicle via an electromagnetic energy;
wherein the first portion of the inner lens is disposed between the object and the object detection device and configured to permit the electromagnetic energy to pass through such that the object detection device detects the object in the exterior environment of the vehicle.

10. The exterior lighting and object detection assembly of claim 9 , further comprising a trim panel connected to the housing;
wherein the first portion of the inner lens has a smooth inner surface; and
wherein the trim panel is disposed adjacent to the inner surface of the first portion of the inner lens.

11. The exterior lighting and object detection assembly of claim 10 , wherein the trim panel is configured such that the object detection device is not visible from the exterior environment of the vehicle.

12. The exterior lighting and object detection assembly of claim 10 , wherein the first portion of the inner lens further has a smooth outer surface and an electromagnetic energy pass through portion;
wherein the trim panel has a smooth inner surface, a smooth outer surface, and an electromagnetic energy pass through portion;
wherein the inner surface of the first portion of the inner lens is substantially parallel to an the outer surface of the first portion of the inner lens in the electromagnetic energy pass through portion of the first portion of the inner lens; and
wherein the inner surface of the trim panel is substantially parallel to the outer surface of the trim panel in the electromagnetic energy pass through portion of the trim panel.

13. The exterior lighting and object detection assembly of claim 10 , wherein the first portion of the inner lens further has an electromagnetic energy pass through portion;
wherein the trim panel has an electromagnetic energy pass through portion; and
wherein at least one of the first portion of the inner lens and the trim panel is configured to form a correction lens in the respective electromagnetic energy pass through portion configured to correct for refraction of the electromagnetic energy in the exterior lighting and object detection device.

14. A vehicle operable in an exterior environment including an object, comprising:
a body having a front end;
a hood connected to the body and positioned at the front end; and
an exterior lighting and object detection assembly positioned adjacent to the hood, including:
a housing connected to the body;
a first light source connected to the housing and operable to emit light for a position light function of the vehicle;
an inner lens connected to the housing and having a first portion including a smooth inner surface and an electromagnetic energy pass through portion, the first portion operable to receive light from the first light source and reflect the light from the first light source to the exterior environment of the vehicle

Assignees

• Gm Global Tech Operations Llc

Inventors

• Zawacki Jeffrey T
• Ovenshire Jay H

Classifications

• F21S43/237

  rod-shaped · CPC title

• B60Q1/2607

  comprising at least two indicating lamps · CPC title

• B60Q1/0035

  relative to the vehicle · CPC title

• G01S2013/9324

  Alternative operation using ultrasonic waves · CPC title

• F21S43/245

  emitting light from one or more of its major surfaces · CPC title