Heated mirror assembly

• US 20040145902A1
• Filed: 01/28/2003
• Published: 07/29/2004
• Est. Priority Date: 01/28/2003
• Status: Abandoned Application

• Current Assignee: KW Muth Company
• Original Assignee: KW Muth Company
• Inventors: Bukosky, Allen A., Todd, Daniel R., Mathieu, Daniel J.
• Application Number:
  US10/355,915
• Publication Number:
  US 20040145902A1
• Time in Patent Office: Days
• US Class Current: 362/494
• 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: B60R 1/0602 comprising means for cleaning or deicing
• CPC Class Codes: B60R 1/1207 with lamps; with turn indicators

Abstract

A heated mirror assembly is disclosed and which includes a mirror which is operable to both reflect and pass visibly discernible electromagnetic radiation; a first substrate bearing a heater is juxtaposed relative to the mirror, and wherein the heater, when energized, imparts heat energy to the mirror; an electrically conductive pathway is made integral with the first substrate; and an electrical device is electrically coupled to the conductive pathway, and wherein the heater and the electrical device are each energized from electrical terminals which are supported at least in part by the mirror.

Claims

I_We. I/We claim:

1. A heated mirror assembly, comprising:

a mirror which is operable to both reflect and pass electromagnetic radiation, and which has an average reflectance of greater than about 35%;

a first substrate bearing a heater which is juxtaposed relative to the mirror, and wherein the heater, when energized, imparts heat energy to the mirror;

an electrically conductive pathway made integral with the first substrate; and

an electrical device electrically coupled to the electrically conductive pathway, and wherein the heater and the electrical device are each energized from electrical terminals which are borne by the first substrate, and wherein the electrical device, when energized, emits electromagnetic radiation which is passed, at least in part, by the mirror.

2. A heated mirror assembly as claimed in claim 1, and wherein the mirror is a semitransparent mirror.

3. A heated mirror assembly as claimed in claim 1, and wherein the mirror is a dichroic mirror.

4. A heated mirror assembly as claimed in claim 1, and wherein the mirror has a primary region which reflects visibly discernible electromagnetic radiation, and an adjacent secondary region which passes visibly discernible electromagnetic radiation.

5. A heated mirror assembly as claimed in claim 4, and wherein the primary region of the mirror is substantially continuous, and the secondary region is discontinuous.

6. A heated mirror assembly as claimed in claim 4, and wherein both the primary and secondary regions of the mirror are substantially continuous.

7. A heated mirror assembly as claimed in claim 1, and wherein the first substrate is a flexible synthetic substrate having opposite sides, and wherein the heater is defined by a plurality of conductive traces which are deposited on one side of the first flexible synthetic substrate.

8. A heated mirror assembly as claimed in claim 1, and wherein the first substrate is a flexible synthetic substrate having a first surface which has an adhesive coating deposited thereon, and an opposite second surface, and wherein the heater is defined by a plurality of conductive traces which are deposited on one of the first or second sides of the first flexible synthetic substrate, and wherein the adhesive coating adheres a preponderance of the flexible synthetic substrate to the mirror and places the heater into heat transferring relation relative thereto.

9. A heated mirror assembly as claimed in claim 8, and wherein the first flexible synthetic substrate has a region which passes visibly discernible electromagnetic radiation.

10. A heated mirror assembly as claimed in claim 8, and further comprising:

a first, flexible, electrically nonconductive layer positioned in substantially covering relation over the conductive traces, and wherein the electrically nonconductive layer has a region which passes visibly discernible electromagnetic radiation.

11. A heated mirror assembly as claimed in claim 1, and wherein the conductive pathway is borne by a second flexible substrate, and wherein the second flexible substrate is made integral with the first substrate.

12. A heated mirror assembly as claimed in claim 11, and wherein the second flexible substrate has a region which passes visibly discernible electromagnetic radiation, and wherein the conductive pathway has an end which is located at a position which is adjacent to the region which passes visibly discernible electromagnetic radiation.

13. A heated mirror assembly as claimed in claim 12, and wherein the electrical device is electrically coupled to the end of the conductive pathway, and wherein the electrical device, when energized, emits visibly discernible electromagnetic radiation which passes through the region of the second flexible substrate that passes visibly discernible electromagnetic radiation.

14. A heated mirror assembly as claimed in claim 13, and further comprising:

a second flexible electrically nonconductive layer positioned in at least partial covering relation relative to the conductive pathway.

15. A heated mirror assembly as claimed in claim 1, and wherein a reflector is mounted adjacent to the electrical device, and is operable to direct a portion of the emitted electromagnetic radiation in a predetermined direction so that it is not passed by the mirror.

16. A heated mirror assembly:

a mirror having opposite surfaces, and which is operable to both reflect and pass electromagnetic radiation, and wherein the mirror has an average reflectance of greater than about 35%;

an electrical circuit defining a heater, and a separate electrical pathway and which are both deposited on one of the surfaces of the mirror, and wherein the heater, when energized, imparts heat energy to the mirror; and

an electrical device electrically coupled to the electrical pathway, and wherein the heater and the electrical device are each energized from electrical terminals which are supported on one of the surfaces of the mirror, and wherein the electrical device, when energized, emits electromagnetic radiation which is passed, in part, by the mirror.

17. A heated mirror assembly as claimed in claim 16, and wherein the mirror is semitransparent.

18. A heated mirror assembly as claimed in claim 16, and wherein mirror is a dichroic mirror.

19. A heated mirror assembly as claimed in claim 16, and wherein the mirror has a primary region which reflects visibly discernible electromagnetic radiation, and an adjacent secondary region which passes visibly discernible electromagnetic radiation.

20. A heated mirror assembly as claimed in claim 19, and wherein the primary region of the mirror is substantially continuous, and the secondary region is discontinuous.

21. A heated mirror assembly as claimed in claim 19, and wherein both the primary and secondary regions of the mirror are substantially continuous.

22. A heated mirror assembly as claimed in claim 16, and further comprising:

a first masking layer deposited on one of the surfaces of the mirror, and wherein the masking layer defines a region through which visible electromagnetic radiation may pass, and wherein the electrical circuit is deposited on the masking layer.

23. A heated mirror assembly as claimed in claim 16, and further comprising:

a first, electrically nonconductive masking layer deposited on one of the surfaces of the mirror, and wherein the masking layer defines a region through which visible electromagnetic radiation may pass, and wherein that portion of the electrical circuit defining the heater is deposited on the masking layer; and

an electrically insulating layer deposited in at least partial covering relation over a portion of the electrical circuit defining the heater, and wherein that portion of the electrical circuit defining the separate electrical pathway is supported on the electrically insulating layer, and wherein the electrically insulating layer defines a region through which visible electromagnetic radiation may pass, and which is oriented in substantial registry with the same region which is defined by the masking layer.

24. A heated mirror assembly as claimed in claim 22, and wherein the conductive pathway has an end which is located adjacent to the region of the masking layer which passes visibly discernible electromagnetic radiation, and wherein the electrical device is electrically coupled to the end of the conductive pathway, and which, when energized emits visibly discernible electromagnetic radiation.

25. A heated mirror assembly as claimed in claim 23, and wherein the electrical device includes a plurality of electrical devices which emit visibly discernible electromagnetic radiation and wherein a portion of the visibly discernible electromagnetic radiation which is emitted by the plurality of electrical devices passes through the region of the masking layer which passes visibly discernible electromagnetic radiation.

26. A heated mirror assembly as claimed in claim 25, and wherein a reflector having first and second portions is borne by the mirror, and wherein the first portion of the reflector is positioned so as to reflect visibly discernible electromagnetic radiation emitted by some of the electrical devices in a direction so that it passes through the regions which pass visibly discernible electromagnetic radiation, and the second portion of the reflector is positioned so as to reflect visibly discernible electromagnetic radiation emitted by some of the electrical devices in a direction so that it does not pass through the regions which pass visibly discernible electromagnetic radiation.

27. A heated mirror assembly comprising:

a mirror having opposite first and second surfaces and which is operable to both reflect and pass visibly discernible electromagnetic radiation, and which has an average reflectance of greater than about 35%;

an electrical device which when energized emits visibly discernible electromagnetic radiation which is passed, at least in part, by the mirror, and wherein the electrical device is mounted on one of the surfaces of the mirror;

an electrically conductive pathway made integral with one of the surfaces of the mirror, and wherein the electrically conductive pathway has a first end, and an opposite second end which is electrically coupled with the electrical device; and

a heater circuit made integral with one of the surfaces of the mirror, and which when energized imparts heat energy to the mirror, and wherein the heater circuit and the electrically conductive pathway each have electrical terminals which are supported at least in part by one of the surfaces of the mirror.

28. A heated mirror assembly as claimed in claim 27, and further comprising:

a first layer of material which is made integral with one of the surfaces of the mirror, and which defines a region through which visibly discernible electromagnetic radiation may pass, and wherein the electrically conductive pathway and the heater circuit are made integral with the first layer.

29. A heated mirror assembly as claimed in claim 28, and wherein the first layer is a synthetic substrate having a first surface which is adhesively affixed to one of the surfaces of the mirror, and an opposite second surface, and wherein the electrically conductive pathway, and the heater circuit are made integral with one of the surfaces.

30. A heated mirror assembly as claimed in claim 28, and wherein the first layer is a masking layer which is deposited onto one of the surfaces of the mirror, and wherein the electrically conductive pathway, and the heater circuit are made integral with the masking layer.

31. A heated mirror assembly as claimed in claim 28, and wherein the first end of the electrically conductive pathway is located in a given location relative to the mirror surface, and wherein the electrical terminal of the electrically conductive pathway are electrically coupled to the first end.

32. A heater mirror assembly as claimed in claim 27, and further comprising:

a reflector located adjacent to the electrical device so as to direct at least a portion of the visibly discernible electromagnetic radiation emitted by the electrical device so that it may pass through the mirror.

33. A heater assembly as claimed in claim 27, and wherein the electrical device is a plurality of electrical devices, and wherein a reflector having first and second portions is positioned adjacent to the plurality of electrical devices, and wherein the first portion of the reflector is positioned so as to reflect visibly discernible electromagnetic radiation emitted by some of the electrical devices in a direction so that it passes through the mirror, and the second portion of the reflector is positioned so as to reflect visibly discernible electromagnetic radiation emitted by some of the electrical devices in a direction so that it does not pass through the mirror.

34. A heated mirror assembly as claimed in claim 27, and further comprising:

a first layer of material which is made integral with one of the surfaces of the mirror, and which defines a region through which visibly discernible electromagnetic radiation may pass, and wherein the heater circuit is made integral with this first layer.

35. A heated mirror assembly as claimed in claim 34, and wherein the first layer of material is a masking layer which is printed onto one of the surfaces of the mirror, and wherein the masking layer defines a region through which visibly discernible electromagnetic radiation may pass.

36. A heated mirror assembly as claimed in claim 34, and wherein the first layer of material is a synthetic substrate which is adhesively affixed to one of the surfaces of the mirror and which defines a region through which visibly discernible electromagnetic radiation may pass.

37. A heated mirror assembly as claimed in claim 34, and further comprising:

a first, electrically insulating layer positioned in substantially covering relation over the heater circuit, and wherein the electrically insulating layer has a region which passes visibly discernible electromagnetic radiation and which is oriented in substantial registry with the same region defined by the first layer, and wherein the electrically conductive pathway is borne by the first electrically insulating layer.

38. A heated mirror assembly as claimed in claim 37, and further comprising:

a second, electrically insulating layer positioned in at least partial covering relation relative to the electrically conductive pathway, and wherein the second, electrically insulating layer defines a region through which visibly discernibly electromagnetic radiation may pass, and which is disposed in substantial registry with the same region defined by the first, electrically insulating layer, and the first layer.

39. A heated mirror assembly as claimed in claim 38, and wherein the electrical device is mounted on the mirror and located adjacent to the regions which pass visibly discernible electromagnetic radiation.

40. A heated mirror assembly as claimed in claim 27, and wherein a reflector is positioned adjacent to the electrical device to reflect electromagnetic radiation emitted by the electrical device in a direction so that it may pass, at least in part through the mirror.

41. A heated mirror assembly as claimed in claim 40, and wherein combined weight of the electrical device, electrically conductive pathway, and the heater circuit is less than about 8 grams.

42. A heated mirror assembly as claimed in claim 40, and wherein the combined weight of the electrical device, electrically conductive pathway and the heater circuit is less than about 8% of the weight of the mirror.

43. A heated mirror assembly as claimed in claim 40, and wherein the electrical device and the reflector comprise an optical stack which has a thickness dimension of less than about 10 millimeters.

44. A heated mirror assembly, comprising:

a mirror having an outwardly facing surface, and an opposite inwardly facing surface, and wherein a mirror coating is applied to one of the surfaces, and wherein the mirror further comprises a region which passes visibly discernible electromagnetic radiation;

a heater circuit disposed in heat transferring relation relative to the inwardly facing surface of the mirror, the heater circuit juxtaposed relative to the inwardly facing surface and which further has electrical terminals to which electricity is supplied to energize the heater circuit;

a plurality of electrical devices supported in part by the inwardly facing surface of the mirror and which are located adjacent to the region which passes visibly discernible electromagnetic radiation, and wherein the electrical devices, when energized emit visibly discernible electromagnetic radiation which is passed, at least in part, by the mirror;

an electrically conductive pathway coupled with the plurality of electrical devices, and which is operable to energize the respective electrical devices, and wherein the electrically conductive pathway is made integral with, and is supported along its length by the inwardly facing surface of the mirror, and wherein the electrically conductive pathway has electrical terminals to which electricity is selectively supplied to energize the plurality of electrical devices, and wherein the electrical terminals of the electrically conductive pathway are located adjacent to the electrical terminals of the heater circuit so as to facilitate the electrical coupling of the electrical devices and the heater circuit with a source of electricity; and

a reflector, supported in part by the inwardly facing surface of the mirror, and which reflects visibly discernible electromagnetic radiation which is emitted by the plurality of electrical devices, and which is passed by the mirror and which can be view from a remote location.

45. A heated mirror assembly as claimed in claim 44, and wherein the heater circuit is supported by a layer of material, and which is made integral with the inside facing surface of the mirror, and wherein the electrically conductive pathway is supported by the same layer of material.

46. A heated mirror assembly as claimed in claim 44, and wherein the heater circuit is supported by a first layer of material, and wherein the electrically conductive pathway is supported on a second layer of material and wherein both layers are made integral with the inside facing surface of the mirror.

47. A heated mirror assembly as claimed in claim 45, and wherein the first layer of material is adhesively affixed to the inwardly facing surface of the mirror.

48. A heated mirror assembly as claimed in claim 45, and wherein the layer of material is applied to the inside facing surface of the mirror as a coating.