Device and method for directing radiation in the direction of an optical element of an image sensing device of a vehicle

• US 9,569,677 B2
• Filed: 01/20/2012
• Issued: 02/14/2017
• Est. Priority Date: 02/08/2011
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH
• Original Assignee: Robert Bosch GmbH
• Inventors: D'Addetta, Gian Antonio, Lich, Thomas, Friedrich, Thomas
• Primary Examiner(s): JONES, HEATHER RAE
• Application Number:
  US13/354,647
• Publication Number:
  US 20120200704A1
• Time in Patent Office: 1,852 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B60R 21/01538 for image processing, e.g. cameras or sensor arrays
• CPC Class Codes: G06V 10/147 Details of sensors, e.g. sensor lenses fingerprint or palmprint sensors G06V40/13; vascular sensors G06V40/145; eye sensors G06V40/19
• CPC Class Codes: G06V 20/58 Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: G06V 20/597 Recognising the driver's state or behaviour, e.g. attention or drowsiness

Abstract

A device for directing radiation in the direction of an optical element of an image sensing device of a vehicle. The device includes a central area for directing at least one portion of a first incident radiation onto the optical element. The device also includes at least one border area for directing at least one portion of at least one second incident radiation onto the optical element. The at least one second incident radiation runs in the opposite direction or at an obtuse angle with respect to the first incident radiation.

Claims

1. A camera device of a vehicle, comprising:

a camera arrangement, including;

a camera housing;

an image sensor; and

an optical element contained in the camera housing;

wherein the camera housing includes;

(i) a central area for guiding at least one portion of a first incident radiation to the optical element; and

(ii) at least one border area for directing at least one portion of at least one second incident radiation onto the optical element, the at least one second incident radiation running one of in an opposite direction or at an obtuse angle with respect to the first incident radiation,

wherein the central area is transparent or mirrored and the at least one border area is mirrored or transparent, and

wherein the camera arrangement is configured to be positioned so as to face the front windshield in the vehicle to provide to the image sensor a forward-looking exterior view via the central area or the at least one bordered area and to provide to the image sensor a rearward-looking interior view via the at least one bordered area or the central area.

2. The device as recited in claim 1, wherein the at least one border area is a one-way mirror.

3. The device as recited in claim 1, wherein the central area and the at least one border area are sections of a glass element.

4. The device as recited in claim 1, wherein the central area and the at least one border area are sections of a switchable glass element, the switchable glass element able to switch the central area and the at least one border area between a transparent state and a mirrored state.

5. The device as recited in claim 4, wherein the central area and the at least one border area are switched to the transparent state to guide the first incident radiation to the optical element, and the central area and the at least one border area are switched to the mirrored state to direct the second incident radiation onto the optical element.

6. The device as recited in claim 4, further comprising:

a control device configured to switch the central area and the at least one border area jointly and periodically between the transparent state and the mirrored state.

7. The device as recited in claim 4, wherein the at least one border area includes a first border area and a second border area, wherein the central area is situated between the first border area and the second border area.

8. A camera system for sensing a first incident radiation from a direction of a windshield of a vehicle and at least one second incident radiation from a direction of an interior of the vehicle, comprising:

a housing;

an image sensing device contained in the housing for sensing optical information of a first incident radiation and optical information of at least one second incident radiation; and

an optical element contained in the housing for directing the first incident radiation and the at least one second incident radiation to the image sensing device;

wherein the housing includes (i) a first central area for guiding at least one portion of the first incident radiation to the optical element, and (ii) at least one border area for directing at least one portion of the at least one second incident radiation onto the optical element, the at least one second incident radiation running one of in an opposite direction or at an obtuse angle with respect to the first incident radiation,

wherein the central area is transparent or mirrored and the at least one border area is mirrored or transparent, and

wherein the camera arrangement is configured to be positioned so as to face the front windshield in the vehicle to provide to the image sensor a forward-looking exterior view via the central area or the at least one bordered area and to provide to the image sensor a rearward-looking interior view via the at least one bordered area or the central area.

9. A method for directing multiple radiations in a direction of an optical element contained in a housing of a camera device, having an image sensor, of a vehicle, the method comprising:

guiding, via a first central area of the housing, at least one portion of a first incident radiation to the optical element and the image sensor; and

directing, via at least one border area of the housing, at least one portion of at least one second incident radiation onto the optical element and the image sensor, the at least one second incident radiation running one of in an opposite direction or at an obtuse angle with respect to the first incident radiation,

wherein the central area is transparent or mirrored and the at least one border area is mirrored or transparent, and

wherein the camera arrangement is configured to be positioned so as to face the front windshield in the vehicle to provide to the image sensor a forward-looking exterior view via the central area or the at least one bordered area and to provide to the image sensor a rearward-looking interior view via the at least one bordered area or the central area.