Infrared camera systems and methods for vehicular applications

• US 7,869,919 B1
• Filed: 05/24/2006
• Issued: 01/11/2011
• Est. Priority Date: 05/24/2006
• Status: Expired due to Fees

• Current Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Original Assignee: FLIR Systems, Inc. (Teledyne Technologies Incorporated)
• Inventors: Kostrzewa, Joseph, Terre, William A., Woolaway, James T.
• Primary Examiner(s): Hellner; Mark
• Assistant Examiner(s): Diacou; Ari M
• Application Number:
  US11/439,638
• Time in Patent Office: 1,693 Days
• Field of Search: 701/36, 701/300, 250/330, 250/332, 250/334, 348/148, 348/164, 359/514, 359/881
• US Class Current: 701/36
• CPC Class Codes: B60R 11/04 Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
• CPC Class Codes: B60R 2300/103 using camera systems provided with artificial illumination device, e.g. IR light source

Abstract

Systems and methods are disclosed herein to provide improved infrared camera techniques for vehicular applications. For example, in accordance with an embodiment of the present invention, a vehicle includes at least a first plate to reflect infrared energy and an infrared camera to detect the infrared energy reflected from the first plate(s) to provide infrared images. The plate allows the infrared camera to provide a desired line of sight view without requiring the infrared camera to be directly within the line of sight.

Claims

1. A vehicle comprising:

a first plate disposed within the vehicle and adapted to reflect infrared energy;

an opening in the vehicle through which the infrared energy passes prior to being reflected by the first plate, wherein air from outside of the vehicle is allowed to pass through the opening to the first plate;

an infrared camera coupled to and disposed within the vehicle, wherein the infrared camera is adapted to detect the infrared energy reflected from the first plate to provide infrared images; and

a first plate mount adapted to secure the first plate to the vehicle, wherein the first plate mount is adapted to momentarily change an angle of orientation of the first plate relative to the infrared camera when the first plate is struck by debris passing through the opening.

2. The vehicle of claim 1, further comprising:

a passenger compartment, and

a display within the passenger compartment and linked to the infrared camera to show the infrared images provided by the infrared camera; and

wherein the first plate mount is adapted to absorb energy from debris that strikes the first plate and redirect the debris via the first plate away from the infrared camera.

3. The vehicle of claim 1, further comprising user controls within the passenger compartment, wherein the user controls are configured to allow a user to change a field of view of the infrared camera via the user controls.

4. The vehicle of claim 1, wherein the first plate has a hydrophobic coating.

5. The vehicle of claim 1, further comprising a processor coupled to the first plate mount and adapted to control movement of the first plate via the first plate mount.

6. The vehicle of claim 5, wherein the processor is adapted to control movement of the first plate to provide at least one of an apparent resolution, a parallax, and a scene based non-uniformity correction.

7. The vehicle of claim 5, wherein the processor is adapted to control movement of the first plate to direct a field of view of the infrared camera into a turn to provide curve imaging.

8. The vehicle of claim 1, wherein the first plate mount comprises at least one of a flexure and/or an actuator to allow the first plate to move when struck by debris.

9. The vehicle of claim 1, wherein the first plate provides an optical power function.

10. The vehicle of claim 1, wherein a line of sight of the infrared camera is disposed at an angle greater than zero degrees relative to infrared energy passing through the opening.

11. The vehicle of claim 1, wherein the first plate comprises a plurality of the first plates coupled to the vehicle and configured to reflect the infrared energy to the infrared camera.

12. The vehicle of claim 1, wherein at least one of the opening and/or the first plate directs at least a portion of the air passing through the opening across an external surface of a lens of the infrared camera.

13. An infrared camera system for a vehicle, the system comprising:

a first plate adapted to reflect infrared energy;

a first plate mount adapted to secure the first plate to the vehicle, wherein the first plate mount is adapted to momentarily change an angle of orientation of the first plate when the first plate is struck by debris passing through an opening in the vehicle; and

an infrared camera adapted to detect infrared energy reflected from the first plate to provide infrared images.

14. The system of claim 13, further comprising a mounting bracket adapted to secure the infrared camera to the vehicle, wherein the angle of orientation of the first plate is relative to the infrared camera, and wherein the first plate mount is adapted to absorb energy from debris that strikes the first plate and redirect the debris via the first plate away from the infrared camera.

15. The system of claim 13, further comprising means for moving the first plate, and wherein the first plate mount comprises at least one of a flexure and/or an actuator to allow the first plate to move when struck by debris.

16. A vehicle comprising:

means for passing infrared energy into the vehicle;

means for reflecting the infrared energy after traveling through the passing means;

means for securing the reflecting means within the vehicle; and

means for capturing infrared images based on the infrared energy provided by the reflecting means, wherein the capturing means is disposed within the vehicle;

wherein the reflecting means directs air flowing from outside of the vehicle and through the passing means to an external infrared transmissive surface of the capturing means.

17. The vehicle of claim 16, further comprising means for displaying the infrared images provided by the capturing means, and wherein the securing means is adapted to momentarily change an angle of orientation of the reflecting means relative to the capturing means when the reflecting means is struck by debris passing through the passing means.

18. The vehicle of claim 16, further comprising means for controlling movement of the reflecting means to provide at least one a desired field of view for the capturing means and additional processing of the infrared images.

19. The vehicle of claim 16, wherein the securing means is adapted to absorb energy from debris that strikes the reflecting means and redirect the debris via the reflecting means away from the capturing means.

20. A method of capturing infrared images within a vehicle, the method comprising:

providing an opening through which infrared energy and air enters the vehicle;

reflecting the infrared energy and the air with a first plate after passing through the opening;

capturing the infrared images with an infrared camera based on the infrared energy reflected from the first plate; and

changing momentarily an angle of orientation of the first plate when the first plate is struck by debris passing through the opening.

21. The method of claim 20, further comprising displaying the infrared images from the capturing, and wherein the changing comprises absorbing energy from debris that strikes the first plate and redirecting the debris via the first plate away from the infrared camera.

22. The method of claim 20, further comprising controlling the reflected to provide at least one a desired field of view for the capturing and a movement for processing of the infrared images.

23. The method of claim 20, wherein the reflecting comprises reflecting the infrared energy to a first angle and then reflecting the infrared energy to at least a second angle prior to the capturing.

24. The method of claim 20, wherein at least one of the providing and the reflecting directs airflow to an external lens surface of the infrared camera.