Systems and components for enhancing rear vision from a vehicle

• US 7,111,968 B2
• Filed: 12/31/2003
• Issued: 09/26/2006
• Est. Priority Date: 09/15/1998
• Status: Expired due to Term

• Current Assignee: Gentex Corporation
• Original Assignee: Gentex Corporation
• Inventors: Roberts, John K., Bauer, Frederick T., Stam, Joseph S., Bauer, Lois
• Primary Examiner(s): Sember, Thomas M.
• Application Number:
  US10/749,444
• Publication Number:
  US 20040160786A1
• Time in Patent Office: 1,000 Days
• Field of Search: 362/545, 362/541, 362/503, 362/544, 362/800, 362/802, 362/276, 340/425.5, 340/436, 340/903, 340/469, 340/425, 340/468, 348/148
• US Class Current: 362/503
• CPC Class Codes: B60Q 1/0023 the element being a sensor, e.g. distance sensor, camera
• CPC Class Codes: B60Q 1/2665 on rear-view mirrors lighting devices for vehicle interior on or for rear-view mirrors B60Q3/258
• CPC Class Codes: B60Q 1/2696 Mounting of devices using LEDs
• CPC Class Codes: B60Q 1/302 mounted in the vicinity, e.g. in the middle, of a rear window
• CPC Class Codes: B60Q 1/52 for indicating emergencies
• CPC Class Codes: B60Q 3/252 Sun visors
• CPC Class Codes: B60R 1/1207 with lamps; with turn indicators
• CPC Class Codes: B63B 45/00 Arrangements or adaptations of signalling or lighting devices arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; life-buoys, -belts, -jackets, -suits or the like, characterised by signalling means B63C9/20; lighting devices or systems therefor F21L, F21S
• CPC Class Codes: F21S 43/14 Light emitting diodes [LED]
• CPC Class Codes: F21S 43/235 Light guides
• CPC Class Codes: F21V 5/02 of prismatic shape F21V5/04 takes precedence
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 2224/48091 Arched
• CPC Class Codes: H01L 2224/48227 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 2224/48247 connecting the wire to a bond pad of the item
• CPC Class Codes: H01L 25/0753 the devices being arranged next to each other
• CPC Class Codes: H01L 25/13 the devices being of a type provided for in group H01L33/00
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/00014 the subject-matter covered by the group, the symbol of which is combined with the symbol of this group, being disclosed without further technical details
• CPC Class Codes: H01L 2924/3025 Electromagnetic shielding
• CPC Class Codes: H05B 45/20 : Controlling the colour of the light
• CPC Class Codes: H05B 45/24 : using electrical feedback from LEDs or from LED modules
• CPC Class Codes: Y10S 362/80 : Light emitting diode

Abstract

A vehicle system is disclosed that includes a vehicle lamp assembly including a plurality of LEDs that emit white light so as to function as an illuminator light. The lamp assembly also may include a plurality of LEDs that emit colored light to function as a signal light. The lamp assembly may include a camera. The lamp assembly may serve as a CHMSL or as a tail light. The system also includes a controller that rapidly pulses the LEDs at a rate that is imperceivable by the human eye. The pulsing intervals of the LEDs may be related to the readout intervals of the camera sensor array. In this manner, the LEDs may be pulsed on during camera readout to increase the illumination while the camera is capturing an image, or may be pulsed off during camera readout to prevent feedback glare from interfering with image capture by the camera.

Claims

1. An electronic imaging system for a vehicle comprising:

a support structure for mounting to a vehicle;

a plurality of LEDs mounted to said support structure, said LEDs being selectively activated in response to an activation signal such that radiation is emitted; and

a camera mounted to said support structure for capturing images in a rearward direction from the support structure for display to a vehicle operator,

wherein said camera captures images at periodic intervals and said LEDs are periodically activated to emit light during those intervals when said camera is not capturing images.

2. The electronic imaging system of claim 1 and further including a control circuit for preventing said LEDs from being activated during those intervals when said camera is capturing images.

3. The electronic imaging system of claim 1 and further comprising a lens, wherein said LEDs and said camera are mounted behind said lens.

4. The electronic imaging system of claim 3, wherein said lens includes first lens region associated with said LEDs and a second lens region associated with said camera.

5. The electronic imaging system of claim 1, wherein said camera is sensitive to infrared radiation.

6. The electronic imaging system of claim 1, wherein said LEDs emit visible radiation.

7. The electronic imaging system of claim 1, wherein said LEDs emit radiation rearward of the vehicle.

8. The electronic imaging system of claim 1, wherein said camera is aimed to capture images rearward of the vehicle.

9. The electronic imaging system of claim 1, wherein said LEDs emit infrared radiation.

10. The electronic imaging system of claim 1 and further comprising a second plurality of LEDs, wherein said second LEDs are periodically activated at periodic intervals coinciding with those intervals at which said camera is capturing an image.

11. The electronic imaging system of claim 1, wherein said LEDs function as a center, high-mounted stop lamp.

12. A vehicle light module for mounting to the rear of a vehicle, the light module comprising:

at least one first light source selectively activated in response to a first activation signal such that radiation within a first bandwidth is emitted from the light module;

at least one second light source selectively activated in response to a second activation signal such that radiation within a second bandwidth is emitted from the light module, wherein the second bandwidth is different from the first bandwidth; and

a camera for capturing images for display of the images to a vehicle operator, wherein said camera captures images at periodic intervals and said first light source is periodically activated to emit light during those intervals when said camera is not capturing images, and wherein said second light source is activated at periodic intervals coinciding with those intervals at which said camera is capturing an image.

13. The vehicle light module of claim 12, wherein the first bandwidth corresponds to red light and the second bandwidth corresponds to white light.

14. The vehicle light module of claim 13, wherein the first light source includes at least one LED and the second light source includes at least one LED.

15. The vehicle light module of claim 12, wherein the first light source includes at least one LED and the second light source includes at least one LED.

16. The vehicle light module of claim 12, wherein the first bandwidth corresponds to red light and the second bandwidth corresponds to infrared radiation to which said camera is sensitive within the field of view of said camera.

17. The vehicle light module of claim 16, wherein the first light source includes at least one LED and the second light source includes at least one LED.

18. The vehicle light module of claim 12 and further includes a third light source selectively activated in response to a third activation signal such that radiation within a third bandwidth is emitted from the light module, wherein the third bandwidth is different from the first and second bandwidths.

19. The vehicle light module of claim 18, wherein the first bandwidth corresponds to red light, the second bandwidth corresponds to white light, and the third bandwidth corresponds to infrared radiation.

20. The vehicle light module of claim 19, wherein the first light source includes at least one LED, the second light source includes at least one LED, and the third light source includes at least one LED.

21. The vehicle light module of claim 12, wherein said camera is sensitive to infrared radiation.

22. The vehicle light module of claim 12 and further comprising a controller for preventing said first light source from being activated during those intervals when said camera is capturing images.

23. The vehicle light module of claim 12, wherein the first light source emits visible radiation.

24. The vehicle light module of claim 12, wherein the first and second light sources emit radiation rearward of the vehicle.

25. The vehicle light module of claim 12, wherein said camera is aimed to capture images rearward of the vehicle.

26. The vehicle light module of claim 12, wherein the light module is a center, high-mounted stop lamp.

27. The vehicle light module of claim 12 and further comprising a support structure for mounting to a vehicle, wherein said first and second light sources and said camera are mounted to said support structure.

28. The vehicle light module of claim 27 and further comprising a lens mounted to said support structure.

29. The vehicle light module of claim 12 and further comprising a lens, wherein the first and second light sources and said camera are mounted behind said lens.

30. The vehicle light module of claim 29, wherein said lens includes first and second lens regions.

31. The vehicle light module of claim 30, wherein said first and second lens regions are clear.

32. The vehicle light module of claim 30, wherein said first lens region is red.

33. The vehicle light module of claim 29, wherein said lens includes first lens region associated with the first light source and a second lens region associated with said camera.

34. The vehicle light module of claim 12, wherein the first activation signal is a brake signal and the first bandwidth corresponds to red light.

35. The vehicle light module of claim 12, wherein said second light source functions as a back-up light.

36. The vehicle light module of claim 12, wherein said second light source functions as a cargo light.

37. The vehicle light module of claim 12, wherein said second light source functions as a rear illumination light.

38. The vehicle light module of claim 12, wherein the first activation signal is a turn signal.

39. The vehicle light module of claim 12, wherein the first activation signal is a running light signal.

40. A center-mounted stop lamp assembly for mounting to the rear of a vehicle, the lamp assembly comprising:

a support structure for mounting to a vehicle;

a plurality of first LEDs selectively activated in response to a brake activation signal such that red light is emitted from the lamp assembly rearward of the vehicle;

a plurality of second LEDs selectively activated in response to a second activation signal such that infrared radiation is emitted from the lamp assembly rearward of the vehicle;

a camera mounted to said support structure for capturing images in a rearward direction from said support structure for display of the images to a vehicle operator, wherein said camera captures images at periodic intervals and is sensitive to infrared radiation; and

a control circuit for preventing activation of said first LEDs during those intervals when said camera is capturing images, and for activating said second LEDs at least during those intervals at which said camera is capturing an image.

41. The center-mounted stop lamp assembly of claim 40 and further comprising a plurality of third LEDs selectively activated in response to a third activation signal such that white light is emitted from the lamp assembly.

42. The center-mounted stop lamp assembly of claim 41, wherein said third LEDs function as a cargo light.

43. The center-mounted stop lamp assembly of claim 40, wherein said first and second LEDs are mounted to said support structure.

44. The center-mounted stop lamp assembly of claim 40 and further comprising a cover mounted to said support structure.

45. The center-mounted stop lamp assembly of claim 44, wherein said first and second LEDs and said camera are mounted behind said cover.

46. The center-mounted stop lamp assembly of claim 45, wherein said cover includes a first cover region through which light from said first LEDs is emitted, a second cover region through which light from said second LEDs is emitted, and a third region through which said camera captures images.

47. The center-mounted stop lamp assembly of claim 46, wherein said first and third cover regions are clear.

48. The center-mounted stop lamp assembly of claim 46, wherein said first cover region is red.