Light bar having multiple levels and multiple rows of lights and having end extensions
DCFirst Claim
1. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
- a body portion adapted to be mounted on the emergency vehicle;
a first transient light source on the body portion having a first mode in which the first light source rotates or oscillates and having a second mode in which the first light source is selectively positioned at different fixed positions;
a second transient light source on the body portion having a first mode in which the second light source rotates or oscillates and having a second mode in which the second light source is selectively positioned at different fixed positions; and
a single controller for controlling rotation or oscillation of the first and second light sources and selectively positioning the first and second light sources in a fend off position defined by an operator.
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Accused Products
Abstract
A light bar for mounting on an emergency vehicle to provide warning light signals. An elongate body portion has an elongate axis, the elongate body portion adapted to be mounted on the emergency vehicle so that the elongate axis traverses an axis coaxial with the direction of the travel of the emergency vehicle. At least three vertically spaced lighting layers are provided, each layer having at least one emergency light source, the emergency light sources on each layer cooperating to provide a transient high intensity warning light signal 360° around the light bar. At least four linear rows of emergency light sources as viewed from the top of the light bar are also provided, the rows being substantially parallel to the elongate axis, each row having at least two emergency light sources, at least one row located in each of the layers and at least one layer having at least two rows, the emergency light sources in each row cooperate to provide a transient high intensity warning signal 360° around the light bar. Each end of the body has projecting extensions which have a recess for accommodating mounting hardware. A spot light or other device may be nested in the bar. The fixtures may be stacked and may be positioned off center when the vehicle is in a fend off position. The fixtures may also be aimed to cross over each other or operate in response to vehicle speed.
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Citations
22 Claims
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1. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
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a body portion adapted to be mounted on the emergency vehicle; a first transient light source on the body portion having a first mode in which the first light source rotates or oscillates and having a second mode in which the first light source is selectively positioned at different fixed positions; a second transient light source on the body portion having a first mode in which the second light source rotates or oscillates and having a second mode in which the second light source is selectively positioned at different fixed positions; and a single controller for controlling rotation or oscillation of the first and second light sources and selectively positioning the first and second light sources in a fend off position defined by an operator. - View Dependent Claims (2)
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3. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
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an elongate body portion having an elongate axis adapted to be mounted on the emergency vehicle so that the axis is transverse to the direction of the travel of the emergency vehicle; at least one vertically spaced lighting layer, each layer having at least one emergency light source, the emergency light sources on each layer cooperating to provide a transient high intensity warning light signal 360°
around the light bar;at least one linear row of light sources as viewed from the top of the light bar, each said row having at least two emergency light sources, at least one row located in each of the layers, the emergency light sources in each row cooperating to provide a transient high intensity warning signal 360°
around the light bar, the emergency light sources in each row cooperating to provide a transient high intensity warning signal to an observer positioned substantially in line with the rows; anda retractable device nested within the elongate body portion. - View Dependent Claims (4, 5)
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6. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
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a body portion having an axis adapted to be mounted on the emergency vehicle so that the axis intersects a central axis parallel to the direction of travel of the emergency vehicle; and a first rotating or oscillating light source having a device for selectively positioning the first light source at different fixed positions to provide a beam of light at an angle of at least 5° and
not more than 85°
with the central axis whereby the first light source in the fixed position is selectively positioned in a fend off position to illuminate a roadway when the emergency vehicle is at a fend off angle relative to the roadway. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14)
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15. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
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a body portion adapted to be mounted on the emergency vehicle; a first transient light source on the body portion having a first mode in which the first light source rotates or oscillates and having a second mode in which the first light source is selectively positioned at different fixed positions; a second transient light source on the body portion having a first mode in which the second light source rotates or oscillates and having a second mode in which the second light source is selectively positioned at different fixed positions; and a single controller for controlling operation and coordinating modes of operation of the first and second light sources. - View Dependent Claims (16)
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17. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
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an elongate body portion having an elongate axis adapted to be mounted on the emergency vehicle so that the elongate axis intersects a central axis parallel to the direction of travel of the emergency vehicle; at least two linear rows of light sources as viewed from the top of the light bar, said rows being substantially parallel to the elongate axis, each said row having at least two emergency light sources, the emergency light sources in each row cooperating to provide a transient high intensity warning signal to an observer positioned substantially in line with the rows; a first fixed light source having a first line of illumination along which the first fixed light source is aimed, the first source positioned on a left side of the central axis of the vehicle so that the first line intersects the central axis and illuminates observers on the right side of the vehicle; and a second fixed light source having a second line of illumination along which the second fixed light source is aimed, the second source positioned on a right side of the central axis of the vehicle so that the second line intersects the central axis and illuminates observers on the left side of the vehicle. - View Dependent Claims (18)
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19. A light bar for mounting on an emergency vehicle to provide warning light signals, the light bar comprising:
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an elongate body portion having an elongate axis adapted to be mounted on the emergency vehicle so that the axis intersects a central axis parallel to the direction of travel of the emergency vehicle; at least two linear rows of light sources as viewed from the top of the light bar, said rows being substantially parallel to the elongate axis, each said row having at least two emergency light sources, the emergency light sources in each row cooperating to provide a transient high intensity warning signal to an observer positioned substantially in line with the rows; a first fixed light source having a first zone of illumination, the first source positioned on a left side of the central axis of the vehicle so that the first zone illuminates observers on the right side of the vehicle; a second fixed light source having a second zone of illumination, the second source positioned contiguous to and perpendicular to the first light source so that the second zone illuminates observers on the left side of the vehicle; and a third fixed light source having a third zone of illumination, the third source positioned contiguous to and perpendicular to the second light source, the third source positioned opposite to and parallel to the first light source, the third light source positioned so that the third zone illuminates observers on the left side of the vehicle. - View Dependent Claims (20)
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21. A light bar for mounting on an emergency vehicle to provide warning light signals, the vehicle providing a status signal representative of a status of the vehicle, the light bar comprising:
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a body portion having a elongate axis adapted to be mounted on the emergency vehicle so that the axis transverses a direction of the travel of the emergency vehicle; at least one vertically spaced lighting layer having at least two emergency light sources, the emergency light sources on the layer cooperating to provide a transient high intensity warning light signal 360°
around the light bar;at least one row of light sources as viewed from the top of the light bar, said row having at least two emergency light sources, the emergency light sources in said row cooperating to provide a transient high intensity warning signal 360°
around the light bar, the emergency light sources in said row cooperating to provide a transient high intensity warning signal to an observer positioned substantially in line with the rows; anda control responsive to and receiving the status signal, said control controlling the number of operating light sources or the light pattern or flashing rate generated by the operating light sources as a function of the speed of the vehicle as represented by the received status signal. - View Dependent Claims (22)
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Specification