Infrared energy transmissive member and radiation receiver

• US 5,987,205 A
• Filed: 09/13/1996
• Issued: 11/16/1999
• Est. Priority Date: 09/13/1996
• Status: Expired due to Term

• Current Assignee: Lutron Technology Company LLC
• Original Assignee: Lutron Electronics Company Incorporated (Lutron Electronics)
• Inventors: Graybill, James R. Jr., Moseley, Robin C., Lansing, Adam T.
• Primary Examiner(s): NGO, HUNG NHAT
• Application Number:
  US08/713,776
• Time in Patent Office: 1,159 Days
• Field of Search: 385/125, 385/88, 385/89, 385/90, 385/91, 385/92, 385/12, 250/333, 250/338.1
• US Class Current: 385/125
• CPC Class Codes: H04B 10/114 Indoor or close-range type systems

Abstract

An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component of an infrared receiver, the member comprising a flexible hollow plastic tube. Preferably, the plastic tube comprises an ester based polyurethane tube and has a malleable rod disposed in the hollow plastic tube to allow the hollow plastic tube to be bent into a claimed configuration. The infrared responsive circuit component may control, e.g., a fluorescent lamp dimming circuit or a window treatment control circuit, thereby allowing remote control of the lamp or window treatment.

Claims

1. An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component, the member comprising a flexible hollow plastic tube, the tube having an outer diameter and an inner diameter, infrared energy being conducted by the plastic tube from the first end through the tube to the second end between the outer diameter and the inner diameter of the tube, the second end of the member being disposed adjacent the infrared responsive circuit component so that infrared energy in the hollow plastic tube between the outer diameter and the inner diameter is transmitted to the circuit component.

2. The infrared energy transmissive member of claim 1, wherein the hollow plastic tube comprises a clear plastic tube.

3. The infrared energy transmissive member of claim 1, wherein the hollow plastic tube comprises an ester based polyurethane plastic tube.

4. The infrared energy transmissive member of claim 1, wherein the hollow plastic tube has an outer diameter of approximately 1/4 inch and an inner diameter of approximately 1/8 inch.

5. The infrared energy transmissive member of claim 1, wherein the hollow plastic tube has an outer diameter of approximately 1/4 inch and an inner diameter of approximately 1/16 inch.

6. The infrared energy transmissive member of claim 1, wherein the infrared responsive circuit component has an infrared energy receiving surface having a specified width and wherein the plastic tube has an inner diameter less than the width of said infrared responsive circuit component.

7. The infrared energy transmissive member of claim 3, wherein the plastic tube comprises Tygothane®

plastic.

8. The infrared energy transmissive member of claim 1, wherein the infrared energy responsive circuit component comprises an infrared energy-receiving component of an electronic lamp dimming circuit adapted to be controlled by a remote infrared energy transmitter.

9. The infrared energy transmissive member of claim 1, wherein the infrared energy responsive circuit component comprises an infrared energy receiving component of an electronic window treatment control circuit adapted to be controlled by a remote infrared energy transmitter.

10. The infrared energy transmissive member of claim 1, further comprising an end cap disposed at the first end of the member.

11. The infrared energy transmissive member of claim 10, wherein the end cap is decorative.

12. The infrared energy transmissive member of claim 10, wherein the end cap comprises an infrared bandpass filter.

13. The infrared energy transmissive member of claim 1, wherein the member comprises a PVC plastic tube.

14. An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component, the member comprising a flexible hollow plastic tube;

and further wherein the flexible plastic tube has a malleable rod disposed in the hollow tube thereby allowing the flexible plastic tube to be bent into a desired configuration.

15. The infrared energy transmissive member of claim 14, wherein the malleable rod has a diameter sized so as to fit within the hollow tube.

16. An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component, the member comprising a flexible hollow plastic tube;

and further comprising an end cap disposed at the first end of the member;

wherein the end cap comprises a lens for focusing infrared energy onto the first end of the member.

17. An infrared energy transmissive member having a first end and a second end for transmitting infrared energy from the first end to the second end, the second end being adjacent an infrared responsive circuit component, the member comprising:

an infrared transmissive flexible plastic hollow tube, the hollow tube having an inner surface and an outer surface, the inner surface having an RMS surface roughness of approximately 1-10 microinches.

18. The infrared energy transmissive member of claim 17, wherein the plastic tube has an outer surface having an RMS surface roughness of approximately 1-10 microinches.

19. The infrared energy transmissive member of claim 17, wherein the plastic tube comprises a clear plastic tube.

20. The infrared energy transmissive member of claim 17, wherein the tube has an outer diameter of approximately 1/4 inch and an inner diameter of approximately 1/8 inch.

21. The infrared energy transmissive member of claim 17, wherein the tube has an outer diameter of approximately 1/4 inch and an inner diameter of approximately 1/16 inch.

22. The infrared energy transmissive member of claim 17, wherein the plastic tube comprises a tube made of an ester base polyurethane plastic.

23. The infrared energy transmissive member of claim 22, wherein the plastic tube increases the range at which said infrared responsive circuit component can operate in response to infrared signals by approximately 25% over an infrared transmissive member comprising PVC.

24. The infrared energy transmissive member of claims 22, wherein the plastic tube comprises Tygothane®

plastic.

25. The infrared energy transmissive member of claim 17, wherein the infrared energy responsive circuit component comprises an infrared energy receiving component of an electronic lamp dimming circuit adapted to be controlled by a remote infrared energy transmitter.

26. The infrared energy transmissive member of claim 17, further comprising an end cap disposed at the first end of the member.

27. The infrared energy transmissive member of claim 26, wherein the end cap is decorative.

28. The infrared energy transmissive member of claim 26, wherein the end cap comprises an infrared bandpass filter.

29. The infrared energy transmissive member of claim 26, wherein the end cap comprises a lens for focusing infrared energy on the first end of the member.

30. The infrared energy transmissive member of claim 17, wherein-the member comprises a PVC plastic tube.

31. An infrared energy transmissive member for conducting infrared energy from a first end of the member to a second end disposed adjacent an infrared responsive circuit component comprising:

an infrared energy transmissive flexible plastic hollow tube having an outer diameter and an inner diameter; and

a malleable rod disposed coaxially in said hollow plastic tube, the malleable rod being bendable to enable bending of said plastic tube into a desired configuration;

the malleable rod having a specified diameter, the inner diameter of the hollow plastic tube being equal to or greater than the diameter of said malleable rod.

32. The infrared energy transmissive member of claim 31, wherein the hollow tube has an outer diameter of approximately 1/4 inch and an inner diameter of approximately 1/8 inch.

33. The infrared energy transmissive member of claim 31, wherein the hollow tube has an outer diameter of approximately 1/4 inch and an inner diameter of approximately 1/16 inch.

34. The infrared energy transmissive member of claim 31, wherein the infrared responsive circuit component has a specified width and the inner diameter of said hollow tube is less than the width of said infrared responsive circuit component.

35. The infrared transmissive member of claim 31, wherein the hollow tube comprises a tube made of an ester based polyurethane plastic.

36. The infrared energy transmissive member of claim 33, wherein said flexible plastic tube has an attenuation for infrared energy of approximately 950 nanometers that is less than attenuation for infrared energy of approximately 880 nanometers.

37. The infrared energy transmissive member of claim 33, wherein a portion of the cross sectional area of said tube between the outer and inner diameters is disposed within the width of said infrared responsive circuit component.

38. The infrared energy transmissive member of claim 31, wherein the infrared energy responsive circuit component comprises an infrared energy receiving component of an electronic lamp dimming circuit adapted to be controlled by a remote infrared energy transmitter.

39. The infrared energy transmissive member of claim 31, wherein the infrared energy responsive circuit component comprises an infrared energy receiving component of an electronic window treatment control circuit adapted to be controlled by a remote infrared energy transmitter.

40. The infrared energy transmissive member of claim 31, further comprising an end cap disposed at the first end of the member.

41. The infrared energy transmissive member of claim 40, wherein the end cap is decorative.

42. The infrared energy transmissive member of claim 40, wherein the end cap comprises an infrared bandpass filter.

43. The infrared energy transmissive member of claim 31, wherein the member comprises a PVC plastic tube.

44. An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component, the member comprising a flexible hollow plastic tube, a bend being provided in the tube, the bend being provided in a location adapted to be exposed to infrared energy for controlling the infrared responsive circuit component, the bend coupling infrared energy into the tube.

45. The infrared energy transmissive member of claim 44, wherein the bend is disposed near the second end adjacent the infrared responsive circuit component so that less attenuation of infrared energy coupled at the bend occurs in the tube.

46. The infrared energy transmissive member of claim 44, wherein infrared energy reflective material is disposed near the tube.

47. The infrared energy transmissive member of claim 46, wherein the infrared energy reflective material is disposed near the bend in the tube.

48. The infrared energy transmissive member of claim 46, wherein infrared energy reflective material is disposed near the bend in the tube.

49. The infrared energy transmissive member of claim 44 wherein infrared energy reflective material is disposed near the first end of the tube.

50. An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component, the member comprising a flexible hollow plastic tube, an end cap being disposed at the first end of the tube for focusing infrared energy onto the first end of the tube.

51. The infrared energy transmissive member of claim 50, wherein the end cap comprises a lens.

52. The infrared energy transmissive member of claim 51, wherein the lens is a fresnel lens.

53. The infrared energy transmissive member of claim 50, wherein the end cap comprises an infrared filter.

54. An infrared energy transmissive member for conducting infrared energy from a first end of the infrared energy transmissive member to a second end disposed adjacent an infrared responsive circuit component, the member comprising a flexible hollow plastic tube disposed so as to receive infrared energy substantially perpendicular to the first end, the tube extending out through an opening in an adjacent member, the tube having an outer diameter and an inner diameter, infrared energy being conducted by the plastic tube from the first end through the tube to the second end between the outer diameter and the inner diameter of the tube, the second end of the member being disposed adjacent the infrared responsive circuit component so that infrared energy in the hollow plastic tube between the outer diameter and the inner diameter is transmitted to the circuit component.

55. The infrared energy transmissive member of claim 54, wherein the tube is capable of receiving infrared energy from a distance of about 30 feet and coupling said infrared energy to the infrared responsive circuit component for effective control of an element controlled by the infrared responsive circuit component.

56. An infrared energy transmissive member having a first end and a second end for transmitting infrared energy from the first end to the second end, the second end being adjacent an infrared responsive circuit component, the member comprising:

an infrared transmissive flexible plastic hollow tube, the hollow tube having an inner surface and an outer surface, the outer surface having an RMS surface roughness of approximately 1-10 microinches.

57. The infrared energy transmissive member of claim 56, wherein the plastic tube has an inner surface having an RMS surface roughness of approximately 1-10 microinches.

58. The infrared energy transmissive member of claim 57, wherein the plastic tube has an inner surface having an RMS surface roughness of approximately 1-4 microinches.