REAR VIEW VISION SYSTEM FOR A VEHICLE

• US 20180376124A1
• Filed: 06/27/2017
• Published: 12/27/2018
• Est. Priority Date: 06/27/2017
• Status: Active Grant

• Current Assignee: He L.I. Zhou
• Original Assignee: He L.I. Zhou
• Inventors: ZHOU, He Li
• Granted Patent: US 10,390,001 B2
• Time in Patent Office: Days
• CPC Class Codes: B60R 1/04 mounted inside vehicle B60R1/025, B60R1/08 take precedence
• CPC Class Codes: B60R 1/26 to the rear of the vehicle
• CPC Class Codes: B60R 1/28 with an adjustable field of view
• CPC Class Codes: B60R 1/31 providing stereoscopic vision
• CPC Class Codes: B60R 2300/105 using multiple cameras
• CPC Class Codes: B60R 2300/107 using stereoscopic cameras
• CPC Class Codes: B60R 2300/20 characterised by the type of display used
• CPC Class Codes: B60R 2300/303 using joined images, e.g. multiple camera images
• CPC Class Codes: B60R 2300/8046 for replacing a rear-view mirror system
• CPC Class Codes: G02B 2027/013 comprising a combiner of particular shape, e.g. curvature
• CPC Class Codes: G02B 2027/0134 of stereoscopic type
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 27/0172 characterised by optical features
• CPC Class Codes: G02B 27/14 operating by reflection only
• CPC Class Codes: G06V 20/56 exterior to a vehicle by using sensors mounted on the vehicle
• CPC Class Codes: G06V 20/59 inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions
• CPC Class Codes: H04N 13/156 Mixing image signals
• CPC Class Codes: H04N 13/243 using three or more 2D image sensors
• CPC Class Codes: H04N 13/344 : with head-mounted left-right displays
• CPC Class Codes: H04N 5/44504 : Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits

Abstract

A rear-view vision system for a vehicle is provided. The system includes a reflection device mounted adjacent a front windshield surface to redirect a reflection of a rear view of the vehicle. The system includes an image capturing device having a field of view facing the reflection device to capture a rear-view image of the reflection. The system may also include a display unit in communication with the image capturing device for displaying the captured rear-view image to a vehicle operator.

Claims

1. A rear-view vision system for a vehicle, the system comprising:

a reflection device mounted adjacent a front windshield surface to redirect a reflection of a rear view of the vehicle;

an image capturing device having a field of view facing the reflection device to capture a rear-view image of the reflection; and

a display unit in communication with the image capturing device for displaying the captured rear-view image to a vehicle operator.

2. The rear-view vision system of claim 1, wherein the reflection device extends between a left windshield side and a right windshield side.

3. The rear-view vision system of claim 1, wherein the reflection device is positioned nearer to a vehicle roof than the image capturing device.

4. The rear-view vision system of claim 1, wherein the reflection device is positioned substantially parallel to the front windshield surface.

5. The rear-view vision system of claim 1, wherein the image capturing device is positioned on a dashboard at a substantially midpoint between a left side and a right side of the vehicle.

6. The rear-view vision system of claim 1, wherein the reflection device includes a reflection surface to redirect the rear view of the vehicle and an array of louver slats adjacent the reflection surface, and wherein a distance between adjacent louver slats in the array of louver slats is a common distance,

whereby a louver slat in the array of louver slats is spaced from an adjacent louver slat by the common distance such that the array of louver slats provides a continuous background to the reflection surface when viewed from the field of view of the image capturing device.

7. The rear-view vision system of claim 6, wherein the louver is opaque or absorptive of light.

8. The rear-view vision system of claim 6, wherein the reflection device includes a transparent panel providing the reflection surface to redirect the reflection of the rear view of the vehicle, and wherein the array of louver slats is encapsulated within the transparent panel adjacent the reflection surface.

9. The rear-view vision system of claim 8, wherein the reflection device is mounted on a vehicle interior facing surface of the front windshield.

10. The rear-view vision system of claim 6, wherein the reflection device includes a transparent panel providing the reflection surface to redirect the reflection of the rear view of the vehicle, and wherein the transparent panel includes a second surface opposite the reflection surface, and wherein the array of louver slats is positioned on the second surface of the transparent panel.

11. The rear-view vision system of claim 10, wherein the reflection device is mounted on a vehicle interior facing surface of the front windshield, such that the array of louver slats is positioned between the vehicle interior facing surface of the front windshield and the transparent panel.

12. The rear-view vision system of claim 6, wherein each louver slat in the array of louver slats includes a top planar portion substantially facing up and a bottom planar portion substantially facing down, and whereby the array of louver slats are angled such that a front view of the vehicle is viewable by the vehicle operator through spaces between the louver slats.

13. The rear-view vision system of claim 1, wherein the image capturing device includes a horizontal field of view aligning with a reflection width of the reflection device extending between a left windshield side and a right windshield side.

14. The rear-view vision system of claim 1, wherein the display unit is a stereoscopic display device for displaying image pairs of the rear view of the vehicle.

15. The rear-view vision system of claim 1, wherein the display unit is an optical head-mounted display for displaying image pairs of the rear-view of the vehicle.

16. The rear-view vision system of claim 1, wherein the image capturing device is a stereoscopic imaging device for generating image pairs of the rear view of the vehicle.

17. The rear-view vision system of claim 16, wherein the image capturing device includes a digital signal processor configured to stitch a first image from a first camera of the stereoscopic imaging device to a second image from a second camera of the stereoscopic imaging device.

18. The rear-view vision system of claim 17, wherein the image capturing device further includes a third camera positioned between the first camera and the second camera, the third camera being oriented in a common direction with the first camera and the second camera, and wherein the digital signal processor is configured to:

identify interior objects within the vehicle based on image data from the third camera;

generate a template of the interior objects within the vehicle based on image data from the third camera; and

overlay the generated template on stitched image data from the first camera and the second camera for generating a collective rear view image for display on a standard display unit.

19. The rear-view vision system of claim 1, wherein the image capturing device includes a rectilinear lens.

20. The rear-view vision system of claim 1, wherein the image capturing device is mounted on an adjustable platform for adjusting alignment of the field of view of the image capturing device to the reflection device.