Selective light transmitting and receiving system and method

• US 20060215076A1
• Filed: 03/22/2005
• Published: 09/28/2006
• Est. Priority Date: 03/22/2005
• Status: Abandoned Application

• Current Assignee: Technologies4all Incorporated
• Original Assignee: Technologies4all Incorporated
• Inventors: Karim, John H.
• Application Number:
  US11/087,132
• Publication Number:
  US 20060215076A1
• Time in Patent Office: Days
• US Class Current: 349/86
• CPC Class Codes: A42B 3/044 Lighting devices, e.g. helmets with lamps
• CPC Class Codes: B60Q 1/1423 Automatic dimming circuits, i.e. switching between high beam and low beam due to change of ambient light or light level in road traffic
• CPC Class Codes: B60Q 2300/314 Ambient light
• CPC Class Codes: F21S 41/135 Polarised
• CPC Class Codes: F21W 2131/406 for theatres, stages or film studios
• CPC Class Codes: G02B 27/28 for polarising used in stereoscopes G02B30/25

Abstract

A selective light transmitting and receiving system for the reduction of glare and unwanted light. The selective light system includes a light source, a first polarized filter adapted to polarize light emanating from the light source in a first polarization orientation, a second polarized filter adapted to perform polarized filtering of received light in a second polarization orientation, and a light receiving device adapted to receive the filtered light. The selective light system may be incorporated into a vehicle system, a roadway system, a camera or video system, a microscope system, a night vision device, a hard hat lighting system, and a stage lighting system.

Claims

1. A vehicle glare reduction system, comprising:

a light source;

a first polarized filter adapted to polarize light emanating from said light source in a first orientation, wherein said first orientation is substantially horizontal or vertical; and

a second polarized filter situated in front of a driver viewing area and adapted to perform polarize filtering of incoming light in a second orientation substantially orthogonal to said first orientation.

2. The vehicle glare reduction system of claim 1, wherein said light source comprises a headlight of a vehicle.

3. The vehicle glare reduction system of claim 1, wherein said first orientation of said first polarized filter is substantially horizontal and said second orientation of said second polarized filter is substantially vertical.

4. The vehicle glare reduction system of claim 1, wherein said second polarized filter is incorporated into a windshield of a vehicle.

5. The vehicle glare reduction system of claim 1, wherein said second polarized filter is situated in front of a rear view mirror.

6. The vehicle glare reduction system of claim 1, wherein said second polarized filter is situated in front of a side view mirror.

7. The vehicle glare reduction system of claim 1, wherein said first polarized filter comprises an active polarized filter.

8. The vehicle reduction system of claim 7, further comprising:

an ambient light sensor; and

a processor adapted to control said active polarized filter in response to a signal generated by said ambient light sensor.

9. The vehicle glare reduction system of claim 8, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said ambient light sensor.

10. The vehicle glare reduction system of claim 1, wherein said second polarized filter comprises an active polarized filter.

11. The vehicle glare reduction system of claim 10, further comprising:

an ambient light sensor; and

a processor adapted to control said active polarized filter in response to a signal generated by said ambient light sensor.

12. The vehicle glare reduction system of claim 11, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said ambient light sensor.

13. A roadway glare reduction system, comprising:

a road; and

a plurality of polarized filter panels situated along said road and configured to polarize light emanating from the Sun and/or other light sources.

14. The roadway glare reduction system of claim 13, wherein said polarized filter panels are situated adjacent to each other along a side of said road.

15. The roadway glare reduction system of claim 13, wherein said road comprises a two-way road, and wherein said polarized filter panels are situated adjacent to each other along a center divider of said two-way road.

16. The roadway glare reduction system of claim 13, wherein a polarization of said polarized filter panels is in a substantially horizontal orientation.

17. The roadway glare reduction system of claim 13, further comprising a plurality of roadway lights situated along said road, wherein said roadway lights respectively comprise polarized filters adapted to polarize light emanating from respective said roadway lights.

18. The roadway glare reduction system of claim 17, wherein a polarization of said polarized filters is in a substantially horizontal orientation.

19. A roadway glare reduction system, comprising:

a road; and

a plurality of roadway lights for lighting said road, wherein said roadway lights respectively comprise polarized filters adapted to polarize light emanating from respective said roadway lights.

20. A camera or video system, comprising:

a light source;

a first polarized filter configured to polarize light emanating from said light source;

a second polarized filter adapted to perform polarized filtering on a received light; and

a light sensitive device adapted to receive said filtered light.

21. The camera or video system of claim 20, wherein said light source comprises a flash light.

22. The camera or video system of claim 20, wherein a first polarization of said first polarized filter is substantially orthogonal to a second polarization of said second polarized filter.

23. The camera or video system of claim 20, wherein said light sensitive device comprises a film.

24. The camera or video system of claim 20, wherein said light sensitive device comprises a charged coupled device (CCD).

25. The camera or video system of claim 20, wherein said first polarized filter comprises an active polarized filter.

26. The camera or video system of claim 25, further comprising:

an input device; and

a processor adapted to control said active polarized filter in response to a signal generated by said input device.

27. The camera or video system of claim 26, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said input device.

28. The camera or video system of claim 20, wherein said second polarized filter comprises an active polarized filter.

29. The camera or video system of claim 28, further comprising:

an input device; and

a processor adapted to control said active polarized filter in response to a signal generated by said input device.

30. The camera or video system of claim 29, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said input device.

31. The camera or video system of claim 20, further comprising a processor adapted to perform image processing of image information generated by said light sensitive device from said filtered light.

32. A microscope system, comprising:

a light source;

a first polarized filter configured to polarize light emanating from said light source;

a second polarized filter adapted to perform polarized filtering on a received light; and

an objective lens adapted to receive said filtered light.

33. The microscope system of claim 32, wherein a first polarization of said first polarized filter is substantially orthogonal to a second polarization of said second polarized filter.

34. The microscope system of claim 32, further comprising:

an eye piece optically coupled to said objective lens; and

a stage to support a specimen.

35. The microscope system of claim 32, wherein said first polarized filter comprises an active polarized filter.

36. The microscope system of claim 35, further comprising:

an input device; and

a processor adapted to control said active polarized filter in response to a signal generated by said input device.

37. The microscope system of claim 36, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said input device.

38. The microscope system of claim 32, wherein said second polarized filter comprises an active polarized filter.

39. The microscope system of claim 38, further comprising:

an input device; and

a processor adapted to control said active polarized filter in response to a signal generated by said input device.

40. The microscope system of claim 39, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said input device.

41. A night vision device, comprising:

an infrared light source;

a first polarized filter configured to polarize infrared light emanating from said infrared light source;

a second polarized filter adapted to perform polarized filtering on a received infrared light; and

an infrared light sensitive device adapted to receive said filtered light.

42. The night vision device of claim 41, wherein a first polarization of said first polarized filter is substantially orthogonal to a second polarization of said second polarized filter.

43. The night vision device of claim 41, wherein said first polarized filter comprises an active polarized filter.

44. The night vision device of claim 43, further comprising:

an input device; and

a processor adapted to control said active polarized filter in response to a signal generated by said input device.

45. The night vision device of claim 44, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said input device.

46. The night vision device of claim 41, wherein said second polarized filter comprises an active polarized filter.

47. The night vision device of claim 46, further comprising:

an input device; and

a processor adapted to control said active polarized filter in response to a signal generated by said input device.

48. The night vision device of claim 47, further comprising a computer readable medium including one or more software modules adapted to control said processor in controlling said active polarized filter in response to said signal generated by said input device.

49. A hard hat lighting system comprising:

a hard hat;

a light source attached to said hard hat; and

a first polarized filter adapted to polarize light emanating from said light source.

50. The hard hat lighting system of claim 49, wherein said eye wear is attached to said hard hat.

51. The hard hat lighting system of claim 49 further comprising an eye wear including a second polarized filter adapted to perform polarized filtering of a received light.

52. The hard hat lighting system of claim 51, wherein a first polarization of said first polarized filter is substantially orthogonal to a second polarization of said second polarized filter.

53. A stage lighting system, comprising:

a stage light source; and

a first polarized filter adapted to polarize light emanating from said stage light source.

54. The stage lighting system of claim 53, wherein said first polarized filter is attached to said stage light source.

55. The stage lighting system of claim 53, further comprising a second polarized filter adapted to further polarize light emanating from said stage light source.

56. The stage lighting system of claim 55, wherein said first and second polarized filters are attached to said stage light source.

57. The stage lighting system of claim 55, wherein a first polarization of said first polarized filter is different than a second polarization of said second polarized filter.