VIEWING SYSTEM FOR VEHICLES, IN PARTICULAR COMMERCIAL VEHICLES

• US 20140226008A1
• Filed: 02/06/2014
• Published: 08/14/2014
• Est. Priority Date: 02/08/2013
• Status: Active Grant

• Current Assignee: Mekra Lang GmbH & Company KG
• Original Assignee: Mekra Lang GmbH & Company KG
• Inventors: LANG, Werner, KUNZ, Manuel
• Granted Patent: US 9,667,922 B2
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/23 with a predetermined field of view
• CPC Class Codes: B60R 1/25 to the sides of the vehicle
• CPC Class Codes: B60R 2300/00 Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

A viewing system for a vehicle, in particular a commercial vehicle, includes an image capture unit, a computing unit, and a reproducing unit. The image capture unit includes a lens, which has an optical axis, and a digital image sensing unit, and is configured to be attached to the vehicle such that a viewing area on the side of the vehicle is sensed with at least one part of a first legally-prescribed field of view and with at least one part of a second legally-prescribed field of view. The lens is disposed with respect to the digital image sensing unit such that the optical axis extends through the part of the first legally-prescribed field of view that is reproduced on the digital image sensing unit.

Claims

1. A viewing system for a vehicle, including:

an image capture unit, a computing unit connected to the image capture unit, and a reproducing unit connected to the computing unit,

wherein the image capture unit comprises a lens, which has an optical axis, and a digital image sensing unit, and is configured to be attached to the vehicle such that a viewing area on the side of the vehicle is sensed with at least a part of a first legally-prescribed field of view and at least a part of a second legally-prescribed field of view, and

wherein the lens is disposed with respect to the digital image sensing unit such that the optical axis extends through the part of the first legally-prescribed field of view that is reproduced on the digital image sensing unit.

2. The viewing system according to claim 1, wherein the optical axis extends eccentrically with respect to the geometric center of gravity of the digital image sensing unit.

3. The viewing system according to claim 1, wherein the digital image sensing unit is substantially symmetric and has at least one axis of symmetry.

4. The viewing system according to claim 3, wherein the optical axis extends skewed with respect to at least one of the axes of symmetry of the digital image sensing unit.

5. The viewing system according to claim 1, wherein the optical axis extends through the vertical center of the part of the first legally-prescribed field of view that is reproduced on the digital image sensing unit.

6. The viewing system according to claim 1, wherein the optical axis extends through the horizontal center of the part of the first legally-prescribed field of view that is reproduced on the digital image sensing unit.

7. The viewing system according to claim 1, wherein the optical axis extends through the surface center of the part of the first legally-prescribed field of view that is reproduced on the digital image sensing unit.

8. The viewing system according to claim 1, wherein the first legally-prescribed field of view corresponds to the field of view II defined in the UN/ECE Regulation No. 46 for main exterior mirrors, and the second legally-prescribed field of view corresponds to the field of view IV defined in the UN/ECE Regulation No. 46 for wide-angle exterior mirrors.

9. The viewing system according to claim 1, wherein

the computing unit is configured to receive an image sensed by the image capture unit and to modify it into a reproduced image such that the part of the first legally-prescribed field of view sensed by the image capture unit and the sensed part of the second legally-prescribed field of view are contained in the reproduced image, and

the reproducing unit is configured to be disposed in the interior of the vehicle so as to be viewable by the driver and to display the reproduced image received from the computing unit.

10. The viewing system according to claim 9, wherein the reproducing unit is configured to permanently display the reproduced image received from the computing unit.

11. The viewing system according to claim 9, wherein the image capture unit further includes a housing, in which the digital image sensing unit and a holding device for the digital image sensing unit are disposed, and wherein the lens is attached to the housing.

12. The viewing system according to claim 11, wherein the lens is disposed eccentric with respect to the holding device and with respect to the digital image sensing unit.

13. The viewing system according to claim 11, wherein the digital image sensing unit is disposed eccentric with respect to the holding device and the lens.

14. The viewing system according to claim 1, wherein the digital image sensing unit is a CMOS or CCD sensor.

15. The viewing system according to claim 1, wherein the image capture unit is further configured to sense the viewing area from a birds-eye perspective.

16. The viewing system according to claim 1, wherein the image capture unit is attached to a side of the vehicle such that the viewing area is sensed from front to rear in the forward driving direction of the vehicle.

17. The viewing system according to claim 1, wherein the image capture unit comprises a single digital image sensing unit for sensing the parts of the first and second legally-prescribed field of view.

18. The viewing system according to claim 1, wherein the optical axis is offset from a center of the digital image sensing unit.

19. A viewing system for a commercial vehicle, including:

an image capture unit comprising a lens having an optical axis and a digital image sensor having a sensor surface having a center point, the digital image sensor being positioned adjacent to the lens such that the optical axis intersects the sensor surface at an intersection point offset from the sensor surface center point;

a computing unit in communication with the image capture unit, and

a reproducing unit in communication with the computing unit.

20. The viewing system according to claim 19, wherein the image capture unit is configured to capture an image of a side of a vehicle to which the image sensor is attached and wherein the optical axis intersects the sensor surface at a location substantially midway between a first line including the side of the vehicle and a second, parallel, line including the center point of the sensor surface.