Abstract: A vehicular camera includes a lens holder, a plurality of printed circuit boards and a housing portion. The individual printed circuit boards are stacked and overlap one another. Circuitry disposed at a first printed circuit board is electrically connected with circuitry disposed at a second printed circuit board via board-to-board electrical connection. The first side of the first printed circuit board is adhesively bonded to the lens holder via cured adhesive. Thermally conductive material is disposed between and is in thermally-conductive contact with the first printed circuit board and the second printed circuit board. A first electrical connector is disposed at the second printed circuit board and electrically connects with a second electrical connector of an electrical connector portion of the housing portion as the housing portion is being joined with the lens holder to encase the plurality of printed circuit boards during assembly of the vehicular camera.

Abstract: A vehicular camera for a vehicular vision system includes a PCB having an imager disposed thereat, a lens barrel accommodating a lens, and a lens barrel support structure that protrudes from the PCB and at least partially circumscribes the imager. The lens barrel has an outer surface that extends between the ends of the lens barrel. The outer surface of the lens barrel is adhesively bonded to an inner surface of the lens barrel support structure via adhesive. The outer surface of the lens barrel radially opposes the inner surface of the lens barrel support structure where the adhesive is disposed. With the adhesive in its uncured state and contacting the opposed surfaces, the imager is optically aligned with the lens accommodated at the lens barrel. With the imager optically aligned with the lens, the adhesive is cured to adhesively attach the lens barrel at the lens barrel support structure.

Abstract: A camera sub-assembly for a vehicular camera includes a lens barrel having a cylinder accommodating a plurality of lens optics, and an annular flange extending radially outward from the cylinder. The cylinder is received in a receiving structure of a lens holder so that an annular attaching surface of the lens barrel is juxtaposed with an annular attaching surface of the receiving structure with a cured adhesive disposed between and contacting both of the annular attaching surfaces. The cured adhesive includes an adhesive material. With the lens optics aligned with respect to an imaging array of a printed circuit board attached at the lens holder, the adhesive material is cured to a partially-cured state via exposure of the adhesive material to ultraviolet light. With the joined lens barrel and lens holder construction at a further curing station, the adhesive material is further cured from the partially-cured state to a more-cured state.

Abstract: A vehicular camera includes a camera housing having a first portion and a second portion joined together to form a cavity within the camera housing. A first electrical connector is disposed at a circuit board and is in electrically-conductive connection with an imager. The first electrical connector includes a plurality of pin-receiving sockets. A second electrical connector includes a plurality of pins, each including a first end and a second end opposite the first end. When the second portion of the camera housing is being joined with the first portion of the camera housing, respective first ends of pins insert into and electrically-conductively connect with respective pin-receiving sockets at the second side of the circuit board. The first electrical connector and the second electrical connector cooperate to allow for misalignment of the second electrical connector relative to the first electrical connector when the first and second portions are being joined.

Abstract: A vehicular camera includes a lens holder, a plurality of printed circuit boards and a housing portion. The individual printed circuit boards are stacked and overlap one another. Circuitry disposed at a first printed circuit board is electrically connected with circuitry disposed at a second printed circuit board via board-to-board electrical connection. The first side of the first printed circuit board is adhesively bonded to the lens holder via cured adhesive. Thermally conductive material is disposed between and is in thermally-conductive contact with the first printed circuit board and the second printed circuit board. A first electrical connector is disposed at the second printed circuit board and electrically connects with a second electrical connector of an electrical connector portion of the housing portion as the housing portion is being joined with the lens holder to encase the plurality of printed circuit boards during assembly of the vehicular camera.

Abstract: A vehicular camera module includes a front housing member, a rear housing member, an imager, and a circuit board. With the circuit board accommodated within a cavity formed by the mated front and rear housing members, the imager is closer to a first side of the circuit board than to a second side of the circuit board. The rear housing member includes an electrical plug connector that is configured to plug into an electrical socket connector at the second side of the circuit board when the front and rear housing members are being mated together during assembly of the vehicular camera module. With the vehicular camera module mounted at a vehicle, electrical power is provided from the vehicle to the electrical circuitry of the circuit board via the connection made by the electrical plug connector of the rear housing member plugged into the electrical socket connector of the circuit board.

Abstract: A vehicular camera includes a housing having a front housing portion and a rear housing portion mated together to form a cavity within the housing. A circuit board is attached at the front housing portion and has at least one front electrical connector in electrical connection with an imager. The rear housing portion has at least one rear electrical connector. With the rear housing portion mated with the front housing portion, the rear electrical connector electrically connects with the front electrical connector. The rear housing portion has a connector portion that is configured to electrically connect the rear electrical connector to a vehicle wire harness. The front electrical connector and the rear electrical connector cooperate to allow for misalignment of the electrical connectors in a direction parallel to the rear side of the circuit board when the rear housing portion is mated with the front housing portion.

Abstract: A vehicular camera configured to be disposed at a vehicle so as to have a field of view exterior of the vehicle includes a lens holder, an imager printed circuit board, a connector printed circuit board and a rear housing. The circuitry of the imager printed circuit board is electrically connected to the circuitry of the connector printed circuit board via a flexible electrical connector. The imager printed circuit board has an imager disposed at a side thereof and is attached to the lens holder with the imager side facing the lens. The imager printed circuit board and the connector printed circuit board are joined together via a pliable material. The rear housing is mated with the lens holder to encase the imager printed circuit board and the connector printed board.

Abstract: A vehicular camera includes a lens holder accommodating a lens and an imager printed circuit board (imager PCB). The lens holder includes a plurality of posts protruding from an attaching portion of the lens holder. The imager PCB includes an imager disposed at a first side of the imager PCB, and includes a plurality of apertures therethrough. The attaching portion of the lens holder is positioned at the imager PCB such that the posts protrude through the apertures of the imager PCB. The posts are movable within the apertures while the lens is adjusted relative to the imager to align the lens relative to the imager. With the lens aligned relative to the imager, the posts are heated to deform within the apertures, whereby the deformed posts harden upon cooling to secure the lens holder relative to the imager PCB.

Abstract: A vehicular camera includes (i) a lens barrel accommodating a lens, (ii) a lens holder having a passageway and (iii) an imager printed circuit board attached to the lens holder with the imager facing the lens. The lens barrel at least partially passes through the passageway of the lens holder when attaching the lens barrel to the lens holder. The imager printed circuit board is attached to the lens holder with the imager facing the lens and optically aligned with the lens. A biasing element urges the lens barrel in a direction outward away from the imager printed circuit board. With the imager printed circuit board attached to the lens holder, the lens barrel is fine adjustable relative to the lens holder. A rear housing attached at the lens holder to encase the imager printed circuit board.

Abstract: A vehicular camera includes a metallic front housing member having a circuit board attachment portion, a lens barrel extending outward from the circuit board attachment portion and accommodating at least one lens, and a circuit board having an imager disposed at a first side and a circuit board connector disposed at a second side. With the circuit board attached at the circuit board attachment portion, the at least one lens is aligned with the imager and the lens barrel is retained relative to the metallic front housing member via cured UV curable adhesive. A metallic rear housing member is attached to the metallic front housing member and the circuit board is accommodated in a cavity formed by the attached metallic front and metallic rear housing members. An electrical connector is electrically connected to the circuit board connector and is configured for electrically connecting to an electrical cable of a vehicle.

Abstract: A vehicular camera includes a camera housing having a rear camera housing and a front camera housing. The front camera housing includes a lens, an imager and an imager printed circuit board. The lens is held in position relative to the imager by a UV-curable adhesive. With the lens held in position relative to the imager by the adhesive, the outer surface of the imager is devoid of the adhesive and an air gap exists between the lens and the outer surface of the imager. With the adhesive disposed in an uncured state on the imager printed circuit board and laterally outboard of the imager, and with the lens positioned relative to the imager, the adhesive is cured from its uncured state to an at least partially-cured state by exposure to UV light. The rear housing portion is joined at the front housing portion.

Abstract: A vehicular camera includes an imager printed circuit board and a lens having a plurality of optical elements. The lens is held in optical alignment with an imager at the imager printed circuit board via a dual cure one-part, filled adhesive that in its uncured state has an epoxy resin. The adhesive is both UV-curable and thermal-curable. A flexible electrical ribbon cable electrically connects circuitry of the imager printed circuit board with additional circuitry of the vehicular camera. Image data captured by the imager is provided to the additional circuitry of the vehicular camera via the flexible electrical ribbon cable. The additional circuitry includes at least a processor for processing image data captured by the imager and provided to the additional circuitry via the flexible electrical ribbon cable. The vehicular camera, when installed and used in a vehicle, captures image data for use by a vision system of the vehicle.

Abstract: A vehicular camera includes a lens barrel, a lens holder and an imager PCB. The lens barrel accommodates a lens and has a threaded inner end. The lens holder has a threaded passageway for threadedly receiving the threaded inner end of the lens barrel. The lens barrel is threadedly attached to the lens holder with a biasing element applying a biasing force at the lens barrel to urge the lens barrel in a direction outward away from the lens holder. The imager PCB is attached to the lens holder with an imager of the imager PCB facing the lens, and the imager PCB is adjusted relative to the lens holder and lens barrel construction to optically align the lens at the imager. After the imager PCB is secured relative to the lens holder, the lens barrel is rotated to adjust focus of the lens at the imager.

Abstract: A vehicular camera includes a lens barrel accommodating a lens and having at least two radial protrusions protruding radially outward at or near an inner end of the lens barrel. A lens holder includes a passageway for receiving the inner end of the lens barrel and has at least two slots extending longitudinally from a board end of the lens holder. The lens barrel is received in the lens holder and the board end of the lens holder is attached at an imager printed circuit board with the imager facing the lens. The radial protrusions are movable within the slots while the lens barrel is adjusted relative to the imager to align the lens at the imager. After the lens is aligned relative to the imager, the radial protrusions within the slots are welded to the lens holder to secure the lens barrel relative to the imager printed circuit board.

Abstract: A vehicular camera includes a housing having a front and rear housing portions, and a circuit board having a first side and a second side, with a first electrical connector disposed at the second side. The rear housing portion includes a second electrical connector that, with the front and rear housing portions mated together, electrically connects with the first electrical connector. The second electrical connector includes electrically conductive terminals that extend through the rear housing portion and that each have an inner end portion and an outer end portion. The inner end portions of the electrically conductive terminals of the second electrical connector extend from an inner surface of the rear housing portion and the outer end portions of the electrically conductive terminals of the second electrical connector extend through a wall of the rear housing portion into a socket connection portion of the rear housing portion.

Abstract: A vehicular camera includes a front camera housing and a lens assembly having cylindrical barrel portion that is at least partially received at the front camera housing. An adhesive is disposed in an uncured state at the front camera housing and/or at the printed circuit board and laterally outboard of the imager. With the adhesive in the uncured state, an air gap exists between the inner surface of the lens and the imager. The adhesive is initially cured from the uncured state to an initially-cured state in an initial radiation curing process that comprises exposure to UV light for a first time period. With the adhesive in the initially-cured state, the front camera housing, with the printed circuit board adhesively attached thereto, is further cured to a further more cured state in a secondary curing process undertaken for a longer time period than the first time period.

Abstract: A method for testing a vehicular camera for a vehicular vision system includes providing a vehicular camera suitable for use on a vehicle, with the vehicular camera having a field of view. A collimator assembly is provided that includes an optic and a target fixedly disposed within the collimator assembly. The collimator assembly is positioned in the field of view of the vehicular camera such that the camera images light that reflects off the target and passes through the optic. The target has a stepped surface. Image data is captured with the vehicular camera, with the captured image data being representative of the stepped surface of the target. The captured image data is processed, via an image processor, and a defocus of the vehicular camera is estimated based on processing by the processor of the captured image data of the stepped surface of the target.

Abstract: A method for assembling an imager assembly for a vehicular camera includes providing a lens barrel that accommodates a lens, providing a lens holder, and providing a PCB with an imager disposed thereat. A cylindrical portion of the lens barrel is disposed in a cylindrical passageway of the lens holder and the PCB is disposed at the lens holder. An adhesive is dispensed to hold the lens optically aligned with the imager. After the lens is optically aligned with the imager, the adhesive is initially cured to an initially-cured state in an initial curing process for an initial-cure time period. The adhesive is further cured to a further-cured state in a secondary curing process for a longer further-cure time period. As further cured, the further-cured adhesive maintains optical alignment of the lens with the imager for use of the imager assembly in a vehicular camera in a vehicle.

Abstract: A vehicular camera includes a housing having a front housing and a rear housing, and a circuit board having an imaging element disposed at a first side and a first electrical connector disposed at a second side. The rear housing includes a second electrical connector that, with the rear housing mated with the front housing, electrically connects with the first electrical connector. The second electrical connector includes electrically conductive terminals that extend through the rear housing and that each have an inner end portion and an outer end portion that is physically and electrically contiguous with the inner end portion. The inner end portions of the electrically conductive terminals of the second electrical connector extend from an inner surface of the rear housing and the outer end portions of the electrically conductive terminals of the second electrical connector extend into a socket connection portion of the rear housing.