Camera module
First Claim
Patent Images
1. A camera module configured to be mounted on an inside of a windshield of a vehicle and to image an external environment of the vehicle, the camera module comprising:
- a plurality of lens units having optical axes, respectively, wherein the optical axes are different from each other, an optical image of the external environment individually enters within angles of view, which are around the optical axes, respectively, the angles of view are different from each other;
an imaging system to perform imaging individually through the lens units and to generate an outside image of the external environment; and
a hood defining an imaging space, which is to guide the optical image of the external environment within an imaging target range of the imaging system to the lens units, and to restrict incidence of light on the lens units from an outside of the imaging target range, whereinone of the lens units is a wide angle unit having an angle of view defined with the wide angle lens,another of the lens units is a narrow angle unit having an angle of view narrower than that of the wide angle unit,the hood includes;
a base wall portion to be located to face the windshield via the imaging space; and
a side wall portion raised from the base wall portion at a lateral side of the imaging space and inclined laterally outward correspondingly to an angle of view of the wide angle unit from a periphery of the wide angle unit toward an external environment side,a narrow angle exposure window is provided as an opening in the side wall portion on the external environment side of the wide angle unit and exposes the narrow angle unit to the imaging space,under a definition that an intersection is a point, at which a lower light ray intersects with the windshield shield, that the lower light ray is incident on the wide angle unit at a taper angle within the imaging target range, and that the taper angle defines a horizontal angle of view range which is smaller than an angle of view of the wide angle unit,the side wall portion is located to spread from the periphery of the wide angle unit toward the intersection.
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Abstract
A camera module, which is mounted on an inside of a front windshield of a vehicle and configured to image an external environment of the vehicle, includes multiple lens units on which an optical image of the external environment is incident, individually, and an imaging system to generate an outside image of the external environment by imaging through each of the lens units, individually.
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Citations
20 Claims
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1. A camera module configured to be mounted on an inside of a windshield of a vehicle and to image an external environment of the vehicle, the camera module comprising:
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a plurality of lens units having optical axes, respectively, wherein the optical axes are different from each other, an optical image of the external environment individually enters within angles of view, which are around the optical axes, respectively, the angles of view are different from each other; an imaging system to perform imaging individually through the lens units and to generate an outside image of the external environment; and a hood defining an imaging space, which is to guide the optical image of the external environment within an imaging target range of the imaging system to the lens units, and to restrict incidence of light on the lens units from an outside of the imaging target range, wherein one of the lens units is a wide angle unit having an angle of view defined with the wide angle lens, another of the lens units is a narrow angle unit having an angle of view narrower than that of the wide angle unit, the hood includes; a base wall portion to be located to face the windshield via the imaging space; and a side wall portion raised from the base wall portion at a lateral side of the imaging space and inclined laterally outward correspondingly to an angle of view of the wide angle unit from a periphery of the wide angle unit toward an external environment side, a narrow angle exposure window is provided as an opening in the side wall portion on the external environment side of the wide angle unit and exposes the narrow angle unit to the imaging space, under a definition that an intersection is a point, at which a lower light ray intersects with the windshield shield, that the lower light ray is incident on the wide angle unit at a taper angle within the imaging target range, and that the taper angle defines a horizontal angle of view range which is smaller than an angle of view of the wide angle unit, the side wall portion is located to spread from the periphery of the wide angle unit toward the intersection. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A camera module configured to be mounted on an inside of a windshield of a vehicle and to image an external environment of the vehicle, the camera module comprising:
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a plurality of lens units having optical axes, respectively, wherein the optical axes are different from each other, an optical image of the external environment individually enters within angles of view, which are around the optical axes, respectively; an imaging system to perform imaging individually through the lens units and to generate an outside image of the external environment; and a hood defining an imaging space, which is to guide the optical image of the external environment within an imaging target range of the imaging system to the lens units, and to restrict incidence of light on the lens units from an outside of the imaging target range, wherein one of the lens units is defined as a first angle unit having an angle of view wider than or equal to that of the rest of the plurality of lens units, the hood includes; a base wall portion to be located to face the windshield via the imaging space; and a side wall portion raised from the base wall portion at a lateral side of the imaging space and elongated laterally outward correspondingly to an angle of view of the wide angle unit from a periphery of the first angle unit toward an external environment side, a narrow angle exposure window is provided as an opening in the side wall portion and exposes one of the rest of the plurality of lens units to the imaging space, and under a definition that an intersection is a point, at which a lower light ray intersects with the windshield shield, that the lower light ray is incident on the wide angle unit at a taper angle within the imaging target range, and that the taper angle defines a horizontal angle of view range which is smaller than an angle of view of the wide angle unit, the side wall portion is located to spread from the periphery of the wide angle unit toward the intersection. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A camera module configured to be mounted on an inside of a windshield of a vehicle and to image an external environment of the vehicle, the camera module comprising:
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a plurality of lens units having optical axes, respectively, wherein the optical axes are different from each other, an optical image of the external environment individually enters within angles of view, which are around the optical axes, respectively; an imaging system to perform imaging individually through the lens units and to generate an outside image of the external environment; and a hood defining an imaging space, which is to guide the optical image of the external environment within an imaging target range of the imaging system to the lens units, and to restrict incidence of light on the lens units from an outside of the imaging target range, wherein one of the lens units is defined as a first angle unit having an angle of view wider than or equal to that of the rest of the plurality of lens units, the hood includes; a base wall portion to be located to face the windshield via the imaging space; and a side wall portion raised from the base wall portion at a lateral side of the imaging space and elongated laterally outward correspondingly to an angle of view of the wide angle unit from a periphery of the first angle unit toward an external environment side, a narrow angle exposure window is provided as an opening in the side wall portion and exposes one of the rest of the plurality of lens units to the imaging space, and when the camera module is mounted on the inside of the windshield, the side wall portion is located to spread from the periphery of the wide angle unit toward an intersection, which is a point, at which a lower light ray intersects with the windshield shield, the lower light ray being incident on the wide angle unit at a taper angle within the imaging target range, and the taper angle defining a horizontal angle of view range which is smaller than an angle of view of the wide angle unit.
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Specification