Cross view mirror with light source, sensing device and/or camera

Abstract

A cross-view mirror for a vehicle includes a mirror assembly having a convex mirror lens providing a field of view for a driver of the vehicle and a support affixed to said mirror lens. The mirror lens includes a reflective portion reflecting light from outside of the mirror lens and a transparent portion configured to allow light to pass through the mirror lens to an area outside of the mirror lens. A light source is mounted to the mirror assembly to emit light through the transparent portion of the mirror lens. The light source is configured to illuminate the field of view provided by said mirror lens. In some embodiments, a sensor or camera detects/captures movement/images in front of the vehicle or to a side/rear of the vehicle.

Claims

1. A cross-view mirror for a vehicle comprising: a cross-view mirror assembly comprising a convex cross-view mirror lens including at least a portion of a substantially dome shaped convex mirror lens providing a field of view for a driver of the vehicle and a support affixed to said mirror assembly, said mirror lens comprising a reflective portion for reflecting light from outside of said mirror lens and a transparent portion configured to allow light to pass through from behind of said mirror lens to an area outside of said mirror assembly; a light source mounted to said mirror assembly having at least a portion internally contained within a mirror unit of said mirror assembly to emit light through said transparent portion of said mirror lens, wherein the light source is configured to illuminate the field of view provided by said mirror lens, wherein said light source positioned at least partially behind or within said mirror assembly to emit light through said transparent portion of said mirror assembly, wherein said light source is configured to illuminate a first field of view provided by said mirror lens to illuminate an area in front of the vehicle; and a sensor detecting movement in front of the vehicle or to a side of the vehicle.

2. The cross-view mirror of claim 1, wherein said light source is mounted to one of said support affixed to said mirror lens and said mirror lens.

3. The cross-view mirror of claim 2, further comprising a bracket mounted to said light source and to said support, said bracket aligning an orientation of said light source with respect to said transparent portion of said mirror lens.

4. The cross-view mirror of claim 1, wherein an orientation of the light source is automatically adjustable to illuminate the field of view provided by the mirror unit or manually adjustable by the driver of the vehicle to illuminate the field of view provided by the mirror unit.

5. The cross-view mirror of claim 1, further comprising a motor for controlling adjustments to an orientation of the light source.

6. The cross-view mirror of claim 1, wherein the vehicle is a school bus, and wherein the illuminated field of view is an area in front and to the side of the school bus.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1 is an exploded view of one embodiment of the mirror assembly of the present invention;

(2) FIG. 2a-b are exploded views of one embodiment of a mirror unit of the present invention;

(3) FIG. 3a-b are exploded views of one embodiment of a mirror unit of the present invention;

(4) FIGS. 4a-c depict a window according to various embodiments of the present invention;

(5) FIGS. 5a-b depict a connection mechanism for the camera according to various embodiments of the present invention;

(6) FIGS. 6a-b depict a connection mechanism for the camera according to various embodiments of the present invention;

(7) FIGS. 7a-b depict a connection mechanism for the camera according to various embodiments of the present invention.

(8) FIG. 8 depicts an embodiment of a mirror unit provided with a light source;

(9) FIG. 9 depicts an alternative embodiment of a mirror unit provided with a light source; and

(10) FIG. 10 depicts another alternative embodiment of a mirror unit provided with a light source.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(11) Before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

(12) As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing of other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the invention be regarded as including equivalent constructions to those described herein insofar as they do not depart from the spirit and scope of the present invention.

(13) For example, the specific sequence of the described process may be altered so that certain processes are conducted in parallel or independent, with other processes, to the extent that the processes are not dependent upon each other. Thus, the specific order of steps described herein is not to be considered implying a specific sequence of steps to perform the process. Other alterations or modifications of the above processes are also contemplated. For example, further insubstantial approximations of the process and/or algorithms are also considered within the scope of the processes described herein.

(14) In addition, features illustrated or described as part of one embodiment can be used on other embodiments to yield a still further embodiment. Additionally, certain features may be interchanged with similar devices or features not mentioned yet which perform the same or similar functions. It is therefore intended that such modifications and variations are included within the totality of the present invention.

(15) The present invention generally relates to side-view, rear-view and/or cross-view mirrors for large vehicles, such as school buses, transit buses and trucks. Specifically, the present invention relates to side-view, rear-view and/or cross-view mirrors containing a camera for use by a driver as an additional sight-aide.

(16) One example of a side-view mirror example of the type that may be used for the present invention is described in U.S. Pat. No. 6,059,419, hereby incorporated by reference in its entirety. In the present invention, the side-view mirror advantageously incorporates a camera to aide a driver by providing additional information that may not be obtained by viewing an image in a side-view mirror alone. As one example, a side-view mirror is provided with a camera that provides an image to a display screen in view of the driver within the vehicle. The camera may advantageously be, for example, provided with night-vision or high sensitivity sensors to provide the driver with an image in poor lighting conditions. The camera may optionally be further provided with infrared sensors such that a driver would be able to discern heat signatures of individuals or animals within view of the camera. According to one optional embodiment, the driver may control the selection of the type of image provided by the camera, e.g., night-vision, infrared, standard, etc. Advantageously, the present invention allows a driver to turn and back up a large vehicle while able to see objects, individuals and/or animals in poor lighting conditions. In alternative optional embodiments, the camera is aided with additional lighting attached to the housing, integrated within the housing and/or attached to the side of the vehicle.

(17) According to one embodiment, the camera may be connected to a monitor within the vehicle in a wired or a wireless manner. For example, the camera may be connected by USB, fiber optic, coaxial, component, Ethernet, HDMI, WiFi, Bluetooth, radio, etc. In some embodiments, the camera and/or monitor is wired to an existing power source associated with the vehicle. In other embodiments, dedicated additional power sources or shared power sources are provided for the monitor and/or camera unit located within the monitor and/or camera, within the vehicle engine compartment and/or in other areas of the vehicle. When the power source is located remote from the camera, wiring for the connection to the power source may optionally be disposed within the mirror pole and one or more support arms for connection to area within the vehicle.

(18) FIG. 1 depicts an exploded view of one embodiment of the mirror assembly of the present invention. The mirror assembly 1 comprises a shell housing 10, a mirror pole 20 and a hinge member (not shown). The shell housing 10 has a substantially rectangularly shaped opening 14 and interior space and contains a rectangularly shaped first mirror unit 16 and a convex-surfaced second mirror unit 18. An electrical cable section (or harness) 35 extends from the hinge member for providing electrical connections between a motor control switch (not shown) and the motors (not shown) contained in the first mirror unit 16 and the second mirror unit 18 via cable section 35a. First and second mirror units 16, 18 are mounted in the shell housing 10 such that the reflecting surfaces of the mirrors 60, 80 lie substantially parallel to the plane of the opening 14. First cutout 100 and second cutout 102 and are provided in a mounting plate or substrate 81 and second mirror 80, respectively, such that a camera may be positioned inline with second mirror for viewing through the first and second cutouts. In various embodiments, first and second cutouts may be provided in mounting plate or support 61 and mirror 60 such that a camera may be positioned inline with first mirror for viewing therethrough. In other embodiments, a camera is provided in both first and second mirror unit as well as accompanying cutouts.

(19) Mounting hole 11 provides an opening for the mirror pole 20 to enter the shell housing 10. A grommet 22 is disposed in the mounting hole 11 and prevents moisture, dirt and the like from entering the shell housing 10 through the mounting hole 11. The mirror pole 20 comprises a first support arm 26 and a second support arm 28 each having a mounting hole 21 on its distal end. While FIG. 1 depicts one embodiment in which first cutout 100 and second cutout 102 are disposed in second mirror unit 18, one of ordinary skill would recognize that first and second cutouts 100, 102 could also or alternatively be disposed in first mirror unit 16 and/or in different locations in the first and/or second mirror units 16, 18. Accordingly, one or more cameras may be advantageously affixed to one or more of the mirror supports and/or mounting plates in a location corresponding to the first and/or second cutouts. Advantageously, as discussed below, when the mirror support and mirror are moved using the motors for viewing purposes, the camera attached thereto is simultaneously moved. Thus, separate controls to move the camera are not needed, and the viewing sight of the camera is advantageously adjusted in an efficient manner. In alternative embodiments, a camera may be connected to the housing 10 itself and/or the mirror mounting arms 20, 26, 28 with its own motor or adjustment device used for directing the view of the camera.

(20) According to another embodiment, the invention is provided with a first mirror unit as described above and second mirror unit is replaced with a wide-angled camera to provide a field of view similar to the field of view of a convex mirror and/or other types of camera lenses. According to other embodiments of the present invention, more than two mirrors are provided, each mirror providing a different field of view. Advantageously, a camera may be provided in any or all of the mirrors for providing a driver with multiple fields of view on a monitor within the vehicle.

(21) With reference to FIG. 2a, the rectangularly shaped first mirror unit 16 is shown in greater detail in accordance with one optional embodiment of the invention. In alternative embodiments, mirrors of different shapes and reflectivity may optionally be used. Advantageously, the rectangularly shaped mirror does not need to be flat. The first mirror unit 16 comprises a flat mirror 60, a flat mounting plate and/or support 61, a cup 65 and a swivel mechanism 66. The swivel mechanism 66 moves in relationship to the cup 65. The cup 65 is dome shaped on the bottom and operatively engages the dome shaped member of the swivel mechanism 66 which provides a swiveling motion in both horizontal and vertical directions. Gearing and swivel members (not shown) are connected to the cup 65 and to two motors (not shown) of the swivel mechanism 66 to enable motorized swiveling of the cup 65 with respect to the swivel mechanism 66 in a manner well known in the art. A boot (not shown) covers the critical elements of the swivel mechanism 66 and the cup 65 to prevent debris from deteriorating the operation of the first mirror unit 16. According to alternative embodiments of the present invention, the first mirror unit and/or the second mirror unit may also or only be moved manually, optionally using a standard manual adjustment mechanism instead of the motor actuated adjustment mechanism.

(22) The flat mirror 60 is disposed on a flat mounting plate 61 and secured at its edges by a long snap 62 and a short snap 63. Relative ease of installation of the flat mirror 60 onto the flat mounting plate 61 is achieved by first inserting one edge of flat mirror 60 under one of the long snap 62 and the short snap 63 and then pressing the other end of flat mirror 60 under the remaining snap to obtain secure engagement of the flat mirror 60 to the flat mounting plate 61. It is preferred that one edge of the flat mirror 60 is first placed under the long snap 62 and then the other end of flat mirror 60 is snapped under short snap 63.

(23) The ease with which the flat mirror 60 is secured to, and removed from, the flat mounting plate 61 enables field replaceability and retrofitability of the flat mirror 60, for example, when the flat mirror 60 is accidentally broken. Alternative connection systems may optionally be used to connect flat mirror 60 from flat mounting plate 61, for example, using an adhesive or other standard means for securing mirror 60 to the mounting plate 61. In addition, mirror 60 need not be flat, and other types of mirror lenses may be used, such as dome type mirror lenses.

(24) Optional vibration tabs 64 extend somewhat above the plane of the flat mounting plate 61 and are elastically biased to engage the rear surface of the flat mirror 60 when the mirror is engaged under the long snap 62 and the short snap 63. The force exerted by the vibration tabs 64 to the rear surface of the flat mirror 60 prevents vibrations in the flat mirror 60 when the vehicle is in motion or when vibrations are transmitted to the first mirror unit 16 from other sources such as, for example, from the engine of the vehicle.

(25) With reference to FIG. 2b, an optional electro-mechanical solenoid 76 may be coupled to the mounting plate 61, which solenoid 76 comprises a core 78 and a spring (not shown). The mounting plate 61 is provided with a hole so that the core 78 projects out of the hole. The spring forces the core 78 outwardly from the solenoid body when the solenoid 76 is not energized. When the solenoid is energized, the core 78 moves inwardly and overcomes the force exerted by the spring, which spring tends to keep the core 78 in the outward position.

(26) The solenoid 76 is positioned such that the core 78 contacts the inside surface of the shell housing 10 when the solenoid is not energized and the spring forces the core 78 into its outward position. Therefore, when the solenoid is not energized, vibrations of the flat mounting plate 61 with respect to the shell housing 10 are damped.

(27) However, when it is desired that the position of the first mirror unit 16 be changed via the motors of the swivel mechanism 66, the solenoid 76 is concurrently energized with the motors (via, for example, the motor control switch) such that the core 78 is drawn inwardly and away from the inside surface of the shell housing 10 thus enabling free movement of the flat plate 61 with respect to the swivel mechanism 66. Further, when the first mirror unit 16 has reached the desired position and the motors of the swivel mechanism 66 are deactivated, the solenoid 76 is also deactivated and the core 78 returns to its resting position against the inside surface of the shell housing 10.

(28) With reference to FIG. 3a, a more detailed drawing of an alternative embodiment of the convex-surfaced second mirror unit 18 is shown. The second mirror unit 18 comprises a substantially convex mirror 80, a convex mounting plate 81, a cup 85 and a swivel mechanism 86. A first cutout 100 in convex mounting plate 81 and a second cutout 102 in convex mirror 80 are provided such that a camera (not shown) may be inserted inline with the mirror. In alternative embodiments, section 102 is optionally transparent or a two way mirror that allows the camera to be able to view the area in the same direction as the rear view mirror. The swivel mechanism 86 comprises two motors (not shown) which are coupled via gearing to the cup 85 to enable motorized swiveling of the cup with respect to the swivel mechanism 86. The convex mounting plate 81 comprises a long snap 82, a short snap 83, and vibration tabs 84. With reference to FIG. 3b, the swivel mechanism 86 may optionally comprise an electromechanical solenoid 96, where the solenoid comprises a core 98 and a spring (not shown). The operation of the motorized features and anti-vibration features of the convex-surfaced second mirror unit 18 are substantially similar to the same features of the rectangularly shaped first mirror unit 16 and, therefore, a detailed recitation of the interconnection and operation of the aforementioned elements of the second mirror unit 18 is omitted. According to various embodiments of the present invention, the first mirror unit may also be moved manually.

(29) In various embodiments a power supply is provided to power the motors in each of the first and second mirror units as well as a camera. In other embodiments, a separate power supply is provided for each component or existing power supplies on the vehicle may optionally be used.

(30) The shell housing 10, the flat mounting plate 61, the cup 65, the swivel mechanism 66, the connecting plate 73, the convex mounting plate 81, the cup 85, the swivel mechanism 86 and the connecting plate 93 may be manufactured from suitable plastics, metals, composite materials or the like. It is preferred that the above-listed elements be manufactured from suitable plastics. The mirror pole 20 and the hinge member 30 may also be manufactured from suitable plastics, metals, composite materials or the like; however, it is preferred that these elements be manufactured from suitable metals. As described above, it is most preferred that mirror pole 20 and the first and second support arms 26, 28 be manufactured from steel and the core material be manufactured from aluminum.

(31) With reference to FIGS. 4a-c, a more detailed view of the camera disposition within the second mirror unit 18 is depicted.

(32) Referring to FIG. 4a, an assembled apparatus according to one embodiment of the present invention is depicted. As shown, a housing is provided with a first mirror unit provided with a substantially rectangular mirror and a second mirror unit provided with a substantially convex mirror. In alternative embodiments, the shape and reflectivity characteristics of the first and second mirror units can be varied. The second mirror is advantageously provided with a cutout or opening 102, through which a camera captures images as described above. Referring to FIG. 4b, an alternative embodiment is depicted wherein the second mirror is provided with a transparent non-reflective window 102, through which a camera captures images as described above. FIG. 4c depicts an additional embodiment wherein all of the mirror is a one-way mirror or is provided with a window 102 comprising a one-way mirror. The one-way mirror allows the camera to capture images through the mirror without interrupting the surface of the mirror. Camera 104 is oriented with the convex mirror 80 through first cutout in convex mounting plate (not shown) and second cutout 102 in convex mirror 80. In alternative embodiments, an additional camera may also be used for the first mirror unit and/or alternatively the camera unit may be used for the first mirror unit, instead of the second mirror unit. In addition, in alternative embodiments, the rear view mirror can comprise any type of mirror unit that includes a camera, such as a mirror mounted inside the vehicle and/or outside the vehicle, such as a standard cross view mirror.

(33) Referring to FIGS. 5a-b, connection mechanisms are depicted according to various embodiments of the present invention for connecting the camera 104 to a second mirror unit. Referring to FIG. 5a, according to one embodiment, a molded snap-in ring 106 is provided such that camera 104 is advantageously fixed to convex mounting plate 81 by snapping the camera 104 into place within the standard snap-in ring 106. Snap-in ring 106 may be configured in any number of shapes to accommodate cameras of varying shapes and sizes. Referring to FIG. 5b, a magnified view of an embodiment providing a molded snap-in ring 106 for securing camera 104 to a mounting plate is depicted.

(34) Referring to FIG. 6a, according to another embodiment, a mounting bracket 108 is provided for securing camera 104 to convex mounting plate 81. Camera 104 is secured to convex mounting plate 81 by at least one screw inserted into mounting bracket and attached to mounting bracket 108. As will be understood, the camera may be connected to the mounting plate in any reasonable fashion without departing from the spirit of the invention, including but not limited to screwing the camera into the mounting plate with a thread on the camera that mates to a thread in the mounting plate, pins, rivets, or one or more brackets secured by one or more screws or pins. Referring to FIG. 6b, a magnified view of an embodiment providing a mounting bracket 108 for securing camera 104 to a mounting plate is depicted.

(35) In some embodiments of the invention, the camera 104 is attached to mounting plate 81 such that the camera is advantageously moved according to the movements of the swivel mechanism 86 (motorized and/or manual adjustment mechanism) along with convex mirror 80, however, in alternative embodiments, a separate motor and/or swivel mechanism may be provided for the camera such that it may be moved independently from the convex mirror 80. Referring to FIG. 7a, according to an additional embodiment of the present invention, a bracket 108 is provided to secure the camera 104. In some embodiments the bracket 108 is attached to mounting plate 81 such that camera 104 moves according to the movements of the swivel mechanism 86. According to other embodiments, bracket 108 is advantageously connected to an additional motor and swivel mechanism that allows the camera 104 to be moved independently of mounting plate 81. In other embodiments bracket 108 is attached to housing 10 such that camera 104 provides a fixed field of view. FIG. 7b provides a magnified view of an embodiment providing a mounting bracket 108 for securing camera 104 according to the previously described embodiment.

(36) According to other embodiments of the present invention, bracket 108 may be provided to attach camera 104 to provide a view to the front of the vehicle. In other embodiments, an additional camera 104 and bracket 108 may be provided such that one camera provides a view to the rear of the vehicle and another camera provides a view to the front of the vehicle. In other embodiments, a hole is provided in housing 10 to allow an additional camera 104 to provide a view to the front of the vehicle.

(37) In alternative embodiments, the camera is aided with additional lighting attached to the housing, integrated within the housing and/or attached to the side of the vehicle. The light source may provide light in the visible range, infra-red, etc. According to certain embodiments, the camera is sensitive to the particular wavelength of the light source.

(38) Referring to FIG. 8, an example of one embodiment of a mirror unit provided with a light source is depicted. Light 112 is connected with a bracket 110 to the mirror unit and provides an area of illumination 114. Bracket 110 may be fixed or may be hinged to allow light 112 to be directed in various angles manually. In some embodiments, bracket 110 is coupled to a motor to allow motorized movement of the light 112 by a driver. According to certain embodiments, the area of illumination 114 may be varied by providing an iris or shade over the light 112. In other embodiments, the area of illumination 114 may be varied by altering the power provided to the light 112. FIG. 9 depicts an alternate embodiment of a light 112 connected externally to a mirror unit with a bracket 110.

(39) Referring to FIG. 9, an example of an embodiment of a mirror unit provided with a light source is depicted. Light 112 is connected with a bracket 110 to the mirror unit and provides an area of illumination 114. According to various embodiments, light 112 is connected to mirror unit with standard connection means, such as screws, pins, rivets, etc. Bracket 110 may be fixed or may be hinged to allow light 112 to be directed in various angles manually. In some embodiments, bracket 110 is coupled to a motor to allow motorized movement of the light 112 by a driver. Camera 104 is provided internally to the mirror unit and is provided a viewing angle through a cutout, transparent window or one-way mirror. Camera can be coupled to a motor to allow motorized movement of the camera within the mirror unit to adjust the camera viewing angle. According to certain embodiments, the area of illumination 114 may be varied by providing an iris or shade over the light 112. In other embodiments, the area of illumination 114 may be varied by altering the power provided to the light 112. FIG. 9 depicts an alternate embodiment of a light 112 connected externally to a mirror unit with a bracket 110.

(40) FIG. 10 depicts one example of an alternative embodiment of a mirror unit provided with a light source 112. As shown in this example, light source 112 is internally contained within a mirror unit. In addition, camera 104 is also internally contained within the mirror unit. According to certain embodiments, light source 112 may provide illumination through a cutout window, or a transparent window. It is envisioned that illumination from light source 112 may be angled manually or a motor may be provided to allow the light source to be rotated or angled electronically by the driver. According to various embodiments, one or both of the camera and light source may be internally contained within the mirror unit or may be fixed externally to the mirror unit with connection means as described elsewhere in this disclosure.

(41) The many features and advantages of the invention are apparent from the detailed specification, and thus, it is intended by the appended claims to cover all such features and advantages of the invention which fall within the true spirit and scope of the invention. Further, since numerous modifications and variations will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation illustrated and described, and accordingly, all suitable modifications and equivalents may be resorted to, falling within the scope of the invention.