This invention relates generally to vehicular rearview mirror assemblies, and more particularly relates to an exterior rearview mirror assembly incorporating optical fibers for generating warning signals.
It is known to provide warning signal light modules on or within the housing of an exterior rearview mirror. This typically involves the placement of light sources (e.g. light emitting diodes) behind the mirror surface, often arranges in a shape indicative of the intended warning. For example, on a left-side exterior rearview mirror, light sources may be arranged behind the mirror surface to form an arrow pointing left that is illuminated to indicate that the driver intends to make a left turn. A similar light assembly would be provided on the right-side exterior rearview mirror to warn of an intended right turn. Other light sources within the mirror assembly may be configured such that when illuminated, a warning is given to rearward drivers of a forward driver's intention to slow down or stop. Still other light sources, or perhaps even some of the same ones, may be utilized to form a blind zone alert (BZA) that warns the driver of a vehicle that another vehicle is in his or her blind spot. As is well known, different colors may be associated with different warnings. For example, the turn and BZA warnings may be amber, and the brake signal may be red.
To render the signals more vivid, it is known to form discrete apertures in the mirror coatings as, for example, by laser ablation, chemical mechanical polishing, or other known techniques. Light sources are then positioned within the mirror housing so as to transmit light through the apertures to form a desired pattern (e.g. a turn-signal arrow). Such techniques, however, are complex thus increasing the cost of manufacture and ultimately, the price of the vehicle.
It would therefore be desirable to provide a vehicular rear-view mirror assembly that is simpler and less costly to manufacture. Other desirable features and characteristics will become apparent from the following detailed description and the appended claims, taken in conjunction with the accompanying drawings and the foregoing technical field and background.
A rearview mirror assembly, for use on a vehicle, comprises a housing configured to be coupled to the vehicle. A mirror is coupled within the housing, and an optical fiber is coupled to the housing and visible from the exterior of the rearview mirror assembly for providing a warning when illuminated.
The present invention will hereinafter be described in conjunction with the following drawing figures, wherein like numerals denote like elements, and
The following detailed description is merely exemplary in nature and is not intended to limit the invention or the application and uses of the invention. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description.
The following description refers to elements or features being “connected” or “coupled” together. As used herein, “connected” may refer to one element/feature being directly joined to (or directly communicating with) another element/feature, and not necessarily mechanically. Likewise, “coupled” may refer to one element/feature being directly or indirectly joined to (or directly or indirectly communicating with) another element/feature, and not necessarily mechanically. However, it should be understood that although two elements may be described below, in one embodiment, as being “connected,” in alternative embodiments similar elements may be “coupled,” and vice versa. Thus, although the schematic diagrams shown herein depict example arrangements of elements, additional intervening elements, devices, features, or components may be present in an actual embodiment. It should also be understood that
Housing 34 is typically a contoured enclosure suitable for housing mirror 36 and components related to mirror operation and features. Mirror 36 may be of any well known type and typically comprises a glass or polymer having a reflective coating thereon such as chrome, silver, or the like. If desired, a camera or other form of vehicle detection device (e.g. radar) may be mounted in housing 34 for the purpose of detecting the presence of a vehicle in a driver's blind zone and alerting the driver as will be more fully described below. Optional bezel 48 is configured to fit over and circumscribe the perimeter of mirror 36 and is shaped to be secured to the periphery of housing 34.
Mirror assembly 30 further comprises at least one optical fiber (or optical fiber cable comprised of a plurality of optical fibers bundled together) and/or at least one light pipe. As used herein, the term “optical fiber” is intended to include any such optical fiber, optical fiber cable, or light pipe assembly.
In the embodiment shown in
It should be clear that the arrangement of optical fibers shown in
When, for example, the vehicle's brake pedal is depressed, brake actuator 42 (
In addition to serving as a warning to other drivers, optical fiber bundles could be configured to function as a “puddle lamp” (i.e. a lamp that illuminates the area around the vehicle's door) when someone approaches the vehicle and activates their key fob to remotely activate the doors.
The above description is given by way of example only. Changes in form and details may be made by one skilled in the art without departing from the scope of the invention. Light source when the function actuator is activated thereby illuminating (e.g. flashing) the optical fiber to provide a warning.
Number | Name | Date | Kind |
---|---|---|---|
3761706 | Frey | Sep 1973 | A |
6005724 | Todd | Dec 1999 | A |
7427150 | Carter et al. | Sep 2008 | B2 |
20090161378 | Enz | Jun 2009 | A1 |
Number | Date | Country | |
---|---|---|---|
20100177523 A1 | Jul 2010 | US |