1. Field of the Invention
The present invention generally relates to a night vision camera system for a motor vehicle.
2. Description of Related Art
Spotlights have been provided for police vehicles for many years. The spotlights can be used to help the officer view the surrounding environment at night without leaving the vehicle. Over the years, enhancements have been made to the spotlights including a linkage that extends through the door of the vehicle allowing remote control aiming of the spotlight. The linkage includes a handle inside the vehicle allowing the officer to manipulate the aiming direction of the spotlight. The positioning of the spotlight linkage extending through the “A” pillar of the door allows easy and ergonomic access for the officer while driving the vehicle. In addition, officers have become comfortable with manipulation of a fairly standard design of control linkage that is attached to the spotlight allowing ease of use and improved manipulation through important scenarios that the officer may face on a daily basis.
Although remote control vehicle spotlights provide improved visibility for the officer, many situations exist where even with the spotlight is difficult to discern the environment from within the vehicle. Further, situations may also arise where the officer may wish to have improved perception of the environment without identifying his position. With the spotlight, it is quite easy for anyone nearby to see and identify the location of the police vehicle and potentially evade detection.
In view of the above, it is apparent that there exists a need for vision system which overcomes the above-mentioned shortcomings of the prior art.
In satisfying the above need, as well as overcoming the enumerated drawbacks and other limitations of the related art, the present invention provides a night vision camera system for a vehicle.
The night vision camera system of this invention includes a light, a night vision camera, and a linkage. The night vision camera is attached to the light such that the light and camera maintain a fixed orientation with respect to one another. The light is attached to the linkage and is configured to manipulate the light and night vision camera concurrently. The linkage is attached to the vehicle and extends into the vehicle interior where a handle is provided allowing the user to aim the light and night vision camera from the interior of the vehicle.
In another aspect of the present invention, the night vision camera has a quick release mount including a member attached to the linkage and engaging the night vision camera. The quick release mount may include a first and second electrical interface that cooperates to fix the orientation of the night vision camera with respect to the light.
In another aspect of the present invention, a strap is provided that engages the night vision camera. The strap is biased into locking engagement with a surface to secure the night vision camera to the light.
In another aspect of the present invention, the first and second electrical interface include electrical connections to provide power to the night vision camera, provide a video signal to the vehicle, and adjust imaging parameters of the night vision camera.
In yet another aspect of the present invention, the night vision camera system includes a handle with a quick release mount that is configured to engage the night vision camera. The quick release mount may include a third electrical interface on the handle that is configured to engage the second electrical interface of the night vision camera thereby fixing the orientation of the night vision camera relative to the handle.
Further objects, features and advantages of this invention will become readily apparent to persons skilled in the art after a review of the following description, with reference to the drawings and claims that are appended to and form a part of this specification.
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The night vision camera 16 is mounted to the light 14 such that the orientation between the light 14 and the night vision camera 16 is fixed. The light 14 and the night vision camera 16 are attached to a first end of a linkage 18 that extends through the “A” pillar of the vehicle 12. The linkage 18 includes a handle 20 on the second end of the linkage allowing the user to concurrently manipulate the light 14 and night vision camera 16. Due to the wavelengths of illumination received by the night vision camera 16, the night vision camera 16 is mounted external to the vehicle 12. To provide electrical power, the light 14 is in communication with a power supply 22 along line 23 to selectively supply power to the light 14. The night vision camera 16 is in communication with the power supply 22 to selectively provide power along line 25. In addition, the night vision camera 16 is also in communication with a monitor 24 and a control unit 26 along line 25. The monitor 24 allows the user to view the image received by the night vision camera 16 from inside the vehicle 12. The control unit 26 can optionally provide adjustment to imaging parameters including, for example, gain control and focus of the night vision camera 16.
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Generally, a quick release mount fixedly attaches a first component to a second component thereby fixing the orientation and relative position therebetween. In a quick release mount, often a surface of the first component is biased to engage the second component. In addition, the surface can preferably be disengaged from the second component without a separate tool (i.e. screw driver, or wrench). Further, preferably the quick release can be disengaged using a single hand such that a single motion will disengage the surface from the second component. A single motion would include, for example, applying force directly or indirectly against the surface by pushing, pulling, or rotating the surface. With respect to rotating, a user's hand would be able to disengage the quick release mount using a single motion, such as half or single rotation, and would generally not require multiple motions to disengage from the surface.
The electrical connections between connector 38 and connector 40 provide electrical power and optionally control commands to the night vision camera 16. In addition, video and other status output from the night vision camera 16 can also be provided through the electrical connection formed by connector 38 and 40. The conductors from electrical connector 38 extend into a connector housing 42 located within the housing 32. A plate 46 locates connector 38 and secures connector housing 42 relative to the housing 32. An opening 36 is provided at the bottom of the housing 32 to provide clearance for a cable 44 that connects the night vision camera 16 to the interior of the vehicle 12.
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As a person skilled in the art will readily appreciate, the above description is meant as an illustration of implementation of the principles this invention. This description is not intended to limit the scope or application of this invention in that the invention is susceptible to modification, variation and change, without departing from spirit of this invention, as defined in the following claims.