CN113085732A

CN113085732A - Imaging device, vehicle, and rearview mirror

Info

Publication number: CN113085732A
Application number: CN202110481645.1A
Authority: CN
Inventors: 李激光; 王勇; 许亮; 张进; 文飞
Original assignee: Shanghai Sensetime Lingang Intelligent Technology Co Ltd
Current assignee: Shanghai Sensetime Lingang Intelligent Technology Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-07-09

Abstract

The present disclosure provides an image pickup apparatus, a vehicle, and a rearview mirror. The camera device comprises a shell, a lens, a first light supplement lamp and a second light supplement lamp, wherein the first light supplement lamp and the second light supplement lamp are arranged towards the imaging side of the camera device and are used for irradiating infrared light to a shooting object positioned outside the shell, and the first light supplement lamp and the second light supplement lamp are respectively arranged on two opposite sides of the lens in a first direction; in the first direction, the angle range that the first light supplement lamp can irradiate is larger than the angle range that the second light supplement lamp can irradiate. The camera device has simple structure, can provide uniform supplementary lighting for shooting objects at different distances, and has high quality of shot image pictures.

Description

Imaging device, vehicle, and rearview mirror

Technical Field

The present disclosure relates to the field of image pickup devices, and more particularly, to an image pickup device for an interior of a running tool (e.g., a vehicle interior), a vehicle including the image pickup device, and a rearview mirror including the image pickup device.

Background

With the development of artificial intelligence, visual technology-based analysis and decision-making are being applied in more and more fields. For example, in the field of vehicles, various applications or functions based on information such as images or videos appear, such as automatic driving, human-vehicle intelligent interaction, cabin entertainment, car sharing rental security, and car active security.

However, better solutions for the identification and recording of the activity of persons in a vehicle are still lacking.

One possible solution is to use a camera device for taking pictures and/or recording videos, however, how to obtain high-quality pictures is a problem to be solved in the art.

Disclosure of Invention

The present disclosure provides an image pickup device capable of effectively recording a state of a photographic subject, a vehicle including the image pickup device, and a rearview mirror including the image pickup device.

According to a first aspect of the present disclosure, there is provided an image pickup apparatus including a housing, a lens, a first fill-in light and a second fill-in light, the first fill-in light and the second fill-in light being disposed toward an imaging side of the image pickup apparatus and configured to irradiate infrared light to a photographic subject located outside the housing,

the first light supplement lamp and the second light supplement lamp are respectively arranged on two opposite sides of the lens in a first direction;

in the first direction, the angle range that the first light supplement lamp can irradiate is larger than the angle range that the second light supplement lamp can irradiate.

In at least one embodiment, in the first direction, an angle range that the first fill-in lamp can irradiate is 35 ° to 45 ° greater than an angle range that the second fill-in lamp can irradiate.

In at least one embodiment, in the first direction, an angle range that the first fill-in light can illuminate is 80 °, and an angle range that the second fill-in light can illuminate is 120 °.

In at least one embodiment, the height of the light emitting center of the first fill-in lamp is equal to the height of the light emitting center of the second fill-in lamp in a second direction, and the second direction is parallel to the imaging plane of the imaging device and perpendicular to the first direction.

In at least one embodiment, the surface of the housing is formed with a first patch area and a second patch area,

the first light supplement lamp can irradiate the outside of the shell from the first opening, a horn-shaped first light blocking area which is recessed towards the inside of the shell is formed in the middle area of the outer surface of the first light supplement area, the first light blocking area surrounds the first opening, and the opening area of the first light blocking area is gradually reduced along the direction approaching the inner side of the shell; and/or

The second light supplementing lamp can irradiate towards the outside of the shell from the second opening, a horn-shaped second light blocking area recessed towards the inside of the shell is formed in the middle area of the outer surface of the second light supplementing area, the second light blocking area surrounds the second opening, and the opening area of the second light blocking area is gradually reduced along the direction approaching the inner side of the shell.

In at least one embodiment, the first light supplement region includes a first light blocking curved surface and a first light blocking plane connected to each other, and the first light blocking plane is located above the first light blocking curved surface; and/or

The second light supplementing area comprises a second light blocking curved surface and a second light blocking plane which are connected with each other, and the second light blocking plane is located above the second light blocking curved surface.

In at least one embodiment, the first light blocking curved surface is a part of a conical surface, the first light blocking plane and the third direction form a first inclination angle, and the first inclination angle is smaller than an included angle between a generatrix of the first light blocking curved surface and the third direction; and/or

The second light blocking curved surface is a part of the conical surface, a second inclination angle is formed between the second light blocking plane and the third direction, and the second inclination angle is smaller than an included angle between a bus of the second light blocking curved surface and the third direction; and the third direction is the optical axis direction of the lens.

In at least one embodiment, the surface of the first light supplement area, which is located inside the shell, is a plane and is in contact with the circuit board of the first light supplement lamp,

the surface of the second light supplementing area, which is located inside the shell, is a plane and is in contact with a circuit board of the second light supplementing lamp.

In at least one embodiment, a plurality of heat dissipation fins are formed on at least one surface of the shell, which faces away from the first light supplement lamp and the second light supplement lamp.

In at least one embodiment, the housing is made of a material comprising metal.

In at least one embodiment, the camera device further comprises a sensor, a main board and a sealing gasket,

the sensor, the main board and the sealing washer are all arranged in the shell, the lens is partially positioned in the shell and partially extends out or is exposed out of the shell,

the sensor is arranged on one side of the main board facing the lens,

the sealing washer is annular and is arranged around the sensor, and two axial sides of the sealing washer are respectively abutted against the lens and the mainboard in an elastic deformation mode.

In at least one embodiment, at least one of the first fill-in light and the second fill-in light is an infrared fill-in light; and/or

The main board further comprises a processing component, the processing component can control the first light supplementing lamp and the second light supplementing lamp to be turned on according to the measurement value of the sensor on the illumination intensity,

under the condition that the illumination intensity is greater than or equal to a threshold value, the processing component controls the first light supplement lamp and the second light supplement lamp to be turned off;

and under the condition that the illumination intensity is smaller than the threshold value, the processing component controls the first light supplement lamp and the second light supplement lamp to be turned on.

In at least one embodiment, the housing is formed with one or more mounting screw holes for mating with screws to connect the housing with a bracket for supporting the housing.

In at least one embodiment, the housing is formed with one or more locating portions for cooperating with a bracket supporting the housing to determine the mounting position of the housing relative to the bracket.

In at least one embodiment, the camera device is configured to provide image basis for at least one of the following recognition functions:

the method comprises the steps of identifying the identity of a shooting object, identifying the age of the shooting object, identifying the expression of the shooting object, identifying whether a target object exists in a shooting range and identifying whether a left article exists in the shooting range.

According to a second aspect of the present disclosure, a vehicle is provided, wherein the vehicle comprises a camera device arranged in a vehicle cabin, and the camera device is the camera device according to the present disclosure.

In at least one embodiment, the camera device is arranged above a rear view mirror in the vehicle cabin, and/or

The camera device is arranged at the position of the reading lamp in the vehicle cabin.

According to a third aspect of the present disclosure, there is provided a rearview mirror comprising: a rearview mirror body and an image pickup apparatus according to the present disclosure, the rearview mirror body being detachably connected with the image pickup apparatus.

The in-cabin camera device is simple in structure, can provide uniform supplementary lighting for different shooting objects at different distances, and ensures that the shot image is high in quality.

The vehicle according to the present disclosure can effectively record and/or recognize images in the vehicle.

The rearview mirror according to the present disclosure has an image pickup function.

Drawings

Fig. 1 is a schematic view of an imaging device according to the present disclosure mounted on a roof of a vehicle.

Fig. 2 is a schematic diagram of an image pickup apparatus according to the present disclosure.

Fig. 3 is an exploded view of an image pickup apparatus according to the present disclosure.

Fig. 4 is a schematic view of an image pickup apparatus according to the present disclosure taken along an optical axis.

Fig. 5 is a perspective schematic view of an image pickup apparatus according to the present disclosure.

Fig. 6 is a schematic diagram of a fill-in light ray range of the image pickup apparatus according to the present disclosure.

Fig. 7 is a schematic view of a fill-in light ray range of the image pickup apparatus according to the present disclosure, viewed in the up-down direction.

Fig. 8 is a schematic view of a fill-in light ray range of the first fill-in lamp of the image pickup apparatus according to the present disclosure, viewed in the left-right direction.

Fig. 9 is a schematic view of a fill-in light ray range of the second fill-in lamp of the image pickup apparatus according to the present disclosure, viewed in the left-right direction.

Fig. 10 is a schematic view of an inner side surface of a front case of the image pickup apparatus according to the present disclosure.

Reference numerals:

t car roof; s, protecting the cover; m rear-view mirror; an L0 reading light; c, a camera device;

10 a shell; 11a front shell; 111a first patch area; 111a first opening; 111f a first flange portion; 112a second light supplement area; 112a second opening; 112f a second flange portion; 113 a lens port;

m1 first light blocking area; m2 second light blocking area; m11 first light blocking curved surface; m12 first light blocking plane; m21 second light blocking curved surface; m22 second light-blocking plane;

12a rear shell; 20 lens; 31 a first fill-in light; 311 a first fill light circuit board; 312 first fill light base; 313 a first filter; 32 a second fill-in lamp; 321 a second fill light circuit board; 322 second fill light; 323 a second filter; 40 a sensor; 50 a main board; a 51 joint; 60 seal the gasket.

Detailed Description

Exemplary embodiments of the present disclosure are described below with reference to the accompanying drawings. It should be understood that the detailed description is intended only to teach one skilled in the art how to practice the disclosure, and is not intended to be exhaustive or to limit the scope of the disclosure.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one (or, at least one, or at least one)" herein means any combination of at least two of any one or more of a plurality, for example, including at least one of A, B, C, and may mean including any one or more elements selected from the group consisting of A, B and C.

Taking a camera device for a vehicle cabin as an example, the camera device according to the present disclosure will be described with reference to fig. 1 to 10. It should be understood that in this disclosure, "capturing" includes both capturing video and capturing photographs.

Referring to fig. 1, an image pickup device C according to the present disclosure may be mounted, for example, at a top position in a vehicle cabin. Alternatively, for a vehicle cabin in which a reading lamp L0 and a mirror M are mounted in the front (in the forward direction of the vehicle, "front") and upper regions in the cabin, the imaging device C may be mounted, for example, in front of the reading lamp L and behind the mirror M; for another example, the imaging device C may be mounted on the upper part of the mirror M, in which case the imaging device C is part of the mirror, e.g. the imaging device C is detachably connected to the mirror body; for another example, the imaging device C may be mounted on the roof T above the rear view mirror M; for another example, the camera C may be fixedly attached to the housing of the reading lamp L0. The camera device C can conveniently shoot a picture in a larger area in the vehicle by being arranged above the rearview mirror M or at the position of the reading lamp L0. When the camera C is connected with the rearview mirror M, the space in the vehicle can be saved, and the camera C is convenient to fix.

Optionally, the image pickup device C is partially surrounded by a shield S, which serves to protect the image pickup device C.

The camera C has functions of recording video (video for short) and taking pictures (photographing for short).

Alternatively, the camera C may be part of an Occupant Monitoring System (OMS) to provide intelligent vehicle control, and in such cases, the camera C may also be referred to as an OMS camera. For example, the camera C can be used for various controls such as car-wide photographing, identification of the identity (including sex) of a passenger, age identification, emotion identification, video recording, identification of a left-behind child or article, and theft prevention.

Next, the structure of the image pickup apparatus 10 will be specifically described with reference to fig. 2 to 10.

Referring to fig. 2 to 4, the image capturing apparatus C includes a housing 10, a lens 20, a first fill-in light 31, and a second fill-in light 32. Wherein, the housing 10 includes a front case 11 and a rear case 12, and the front case 11 and the rear case 12 are connected together by a screw b 2.

It will be appreciated that different directional systems are sometimes used in describing the vehicle and in describing the camera C. In a vehicle, the direction of the front of the vehicle is generally the front direction. In the imaging device C, a direction of a line connecting the first fill-in lamp 31 and the second fill-in lamp 32 is generally defined as a left-right direction (also referred to as a first direction) and a direction perpendicular to the left-right direction and the up-down direction is defined as an up-down direction (also referred to as a second direction) for convenience of description, with a side of the imaging device C where the lens 20 is located or a shooting direction of the imaging device C as a front side and a direction facing away from the lens 20 as a rear side.

A lens opening 113 penetrating the inside and outside of the housing 10 is formed in a substantially middle region of the front case 11, and the lens 20 is attached to the lens opening 113 and partially extends to the outside of the housing 10. Specifically, the front case 11 is formed with an internal thread at the lens opening 113, and the lens 20 is formed with an external thread, the internal and external threads being engaged with each other. The lens 20 is screwed into the lens opening 113, and focusing of the lens can be achieved during screwing. Alternatively, after the focusing is completed, a gap between the external thread of the lens 20 and the internal thread of the lens opening 113 is filled with glue (e.g., UV glue, also called shadowless glue or ultraviolet light curing glue), thereby firmly fixing the lens 20 to the housing 10.

The first fill light lamp 31 and the second fill light lamp 32 are respectively disposed on two sides of the lens 20 in the first direction, that is, on the left and right sides of the lens 20, and are disposed toward the front of the lens 20, that is, the center lines of the light emitting areas of the first fill light lamp 31 and the second fill light lamp 32 are parallel to the optical axis direction (or the front-back direction, also referred to as the third direction) of the lens 20. The first light supplement lamp 31, the second light supplement lamp 32 and the lens 20 are arranged in a line in the left and right directions of the camera device, so that the whole space occupied by the camera device C in the up and down directions is small, and the sight of a driver or a passenger is not easily shielded when the camera device C is arranged close to the rearview mirror M.

The first and second fill-in

lamps

31 and 32 are used for filling in light to the subject when the illumination intensity is insufficient. Optionally, the first light supplement lamp 31 and the second light supplement lamp 32 are both infrared lamps for emitting infrared light, and may be LED infrared lamps. When the illumination intensity of the shooting object is sufficient (the illumination intensity is greater than or equal to the threshold), for example, in the daytime, the first fill-in light 31 and the second fill-in light 32 are not turned on when the camera device C is in operation; under the condition that the illumination intensity is not enough (the illumination intensity is less than the threshold value), for example, at night, in a cloudy day or in a tunnel, when the camera device C works, the first light supplement lamp 31 and the second light supplement lamp 32 are turned on to emit infrared light, and the camera device C can collect clear black and white images.

Specifically, regions of the front housing 11 on both sides of the lens opening 113 partially protrude forward to form a first light-compensating region 111 and a second light-compensating region 112, respectively.

A substantially central region of the first patch area 111 forms a first opening 111a penetrating the inside and outside of the housing 10, and a substantially central region of the second patch area 112 forms a second opening 112a penetrating the inside and outside of the housing 10.

The first fill light 31 includes a first fill light circuit board 311, a first fill light cap 312, and a first optical filter 313, and the second fill light 32 includes a second fill light circuit board 321, a second fill light cap 322, and a second optical filter 323.

The first fill light circuit board 311 and the second fill light circuit board 321 are both mounted inside the housing 10, the first fill light base 312 is at least partially accommodated in the cylindrical region of the first opening 111a, and the second fill light base 322 is at least partially accommodated in the cylindrical region of the second opening 112 a.

The first optical filter 313 is disposed at an outer side of the first fill-in lamp cap 312 (a side close to the inside of the housing 10 is defined as an inner side, and vice versa), and the second optical filter 323 is disposed at an outer side of the second fill-in lamp cap 322, so that light emitted from the first fill-in lamp cap 312 and the second fill-in lamp cap 322 needs to be filtered by the optical filters and then irradiates the outside of the housing 10.

The first filter 313 and the second filter 323 are used for filtering visible light and transmitting infrared light. Optionally, the first optical filter 313 and the second optical filter 323 are both organic glass capable of transmitting infrared light with a wavelength of 940 nm.

Alternatively, the outer peripheral region of the first light supplement region 111 protrudes to the outside of the housing 10 to form a first flange portion 111f, and the first filter 313 is embedded in the inner periphery of the first flange portion 111 f; an outer peripheral region of the second light-compensating region 112 protrudes outward of the housing 10 to form a second flange 112f, and the second filter 323 is fitted into an inner periphery of the second flange 112 f. Optionally, the first filter 313 and the second filter 323 are connected to the front case 11 by using glue.

The first fill light circuit board 311 and the second fill light circuit board 321 are electrically connected to the main board 50, respectively. Optionally, the fill light circuit board (including the first fill light circuit board 311 and the second fill light circuit board 321) and the motherboard 50 are connected to each other through PIN (also called PIN) connectors.

The main board 50 is mounted inside the housing 10. Alternatively, the main board 50 and the housing 10 are connected by a screw b 1.

The area of the main board 50 facing the lens 20 is mounted with the sensor 40, and the sensor 40 is disposed opposite to the lens 20. The sensor 40 can measure the intensity of illumination, and the measured value of the intensity of illumination provides the control basis for the opening of the first light supplement lamp 31 and the second light supplement lamp 32. Alternatively, the sensor 40 and the main board 50 are connected to each other by a single row pin header type connector.

The main board 50 is provided with processing means, such as a basic circuit structure for performing driving of the fill-in light and/or driving of the image pickup device, or an LED driving chip of the fill-in light, or a driving chip of the entire image pickup device. The processing unit can control the opening of the first light supplement lamp 31 and the second light supplement lamp 32 according to the measurement value of the illumination intensity of the sensor 40.

For example, the Processing section is an ISP (Image Signal Processing) Image processor. The ISP image processor receives the output signal of the sensor 40 (signal characterizing the measured illumination intensity) and selects to operate in either RGB mode (also called additive color mode) or IR (Infrared or Infrared) mode depending on the signal. Under the condition of enough illumination intensity, the main board 50 starts an RGB mode to collect a color image; under the condition that the illumination intensity is insufficient, the main board 50 starts the IR mode, the first light supplement lamp 31 and the second light supplement lamp 32 are turned on to supplement light, and the camera device C collects black and white images. Alternatively, the initial mode or default mode of the image pickup device C is the RGB mode.

The main board 50 is also connected to a connector 51, and the connector 51 is, for example, an HSD (high speed data) connector, which can be connected to an external device such as a domain controller to supply power to the camera C and transmit signals between the camera C and the domain controller.

Optionally, a joint 51 is provided between the main board 50 and the rear case 12. The connector 51 partially protrudes from the housing 10 from one side (an upper side in the present embodiment) of the housing 10 to facilitate connection of, for example, a domain controller.

Optionally, the domain controller and the multimedia host perform image display, playback, preview and data sharing in an ethernet manner.

A sealing gasket 60 is also provided between the lens 20 and the main board 50. The material of which the sealing gasket 60 is made includes, for example, silicone rubber. The sealing gasket 60 has a ring shape, and the sensor 40 is disposed on the inner circumference of the sealing gasket 60. The outer peripheral portion of the surface of the lens 20 facing the motherboard 50 is in close contact with the sealing gasket 60, so that the lens 20 is in interference fit with the sealing gasket 60, and the sealing gasket 60 is in interference fit with the motherboard 50 in the optical axis direction a of the lens 20.

The sealing washer 60, the lens 20 and the main board 50 seal the sensor 40, so that the sensor 40 can only receive light from the lens 20, and stray light in the environment is prevented from irradiating the sensor 40, and the sensing of the illumination intensity of the shot object by the sensor 40 is prevented from being influenced.

Moreover, the end face of the lens 20 located inside the housing 10 is sealed by the sealing gasket 60, so that dust, moisture and the like can be prevented from contacting the end face, and the imaging quality can be improved.

Further, the sealing gasket 60 also functions to provide support for the lens 20. Due to factors such as precision problems of the manufacturing process and redundancy of tolerances, the optical axis direction a of the lens 20 may not coincide with the center of the sensor 40 during screwing of the lens 20 to the lens port 113. Since the lens 20 is tightly pressed on the sealing washer 60, the sealing washer 60 provides a positioning base perpendicular to the optical axis direction a for the lens 20, so that the optical axis of the lens 20 can coincide with the center of the sensor 40, and the mounting and positioning accuracy of the camera device C is high.

Next, with reference to fig. 5 to 9, the structural differences of the two fill-in lamps and the influence thereof on the image capturing effect will be described.

Since the vehicle cabin usually includes at least two front and rear rows of seats, the camera C is usually mounted in front of the front row of seats. During shooting, for a single fill-in light, the illumination intensity obtained by the front row is high, and the illumination intensity obtained by the rear row is low. Therefore, when a single supplementary lighting source is used, the illumination intensity of the front row may be enough, but the illumination intensity of the rear row is not enough; if the light supplement requirement of the rear row is met by increasing the illumination intensity, the illumination intensity of the front row is too high, and the imaging effect of the front row shooting object is affected. Therefore, the present disclosure uses two fill-in lamps with different illumination angle ranges to solve the above-mentioned problems.

Fig. 7 shows the angle ranges of the two fill-in lamps in the left-right direction (i.e., the arrangement direction of the two fill-in lamps), or it can be considered that fig. 7 shows a schematic view of the outgoing light rays of the imaging device C viewed in the up-down direction.

Assuming that the light source of the first supplementary lighting lamp 31 is located at the point P, the front of the light source is the PO1 direction, the extreme positions of the first supplementary lighting lamp 31 that can be illuminated at the left and right sides are the positions of the connection line PL1 and the connection line PR1, respectively, and the connection line PL1 and the connection line PR1 are symmetrical with respect to the connection line PO 1; the light source of the second light supplement lamp 32 is located at the point Q, the direction of QO2 is right in front of the light source, the extreme positions of the second light supplement lamp 32 which can be irradiated at the left and right sides are the positions of the connection line QL2 and the connection line QR2 respectively, and the connection line QL2 and the connection line QR2 are symmetrical with respect to the connection line QO 2.

An angle a1 formed by the connection point L1, the point P, and the point L2 is an angle range in which the first fill-in light 31 can irradiate in the left-right direction, and an angle a2 formed by the connection point L2, the point Q, and the point R2 is an angle range in which the second fill-in light 32 can irradiate in the left-right direction.

Included angle a1 is less than included angle a 2. Optionally, the difference between angle a2 and angle a1 is 35 ° to 45 °, preferably 40 °. In the present embodiment, a1 is 80 ° and a2 is 120 °.

The coverage of the included angle a2 is large, which enables the second fill-in light 32 to be used as a global fill-in light to illuminate most areas in the cabin, and for example, provides main fill-in light for the front row area in the cabin closer to the camera C. The coverage range of the included angle a1 is small, so that the first light supplement lamp 31 can be used as a local light supplement lamp to provide extra light supplement for the rear row far away from the camera C in the cabin, and the angle range of the light supplement area is small, so that adverse effects on the shooting objects in the front row cannot be caused.

In this way, the front row area in the cabin is mainly supplemented with light by the second light supplement lamp 32 with a large irradiation range, and the rear row area is supplemented with light by the light superimposed by the first light supplement lamp 31 and the second light supplement lamp 32.

It should be understood that, on the basis that the irradiation range of one of the fill-in lamps covers substantially the entire vehicle, and the irradiation range of the other fill-in lamp covers the rear row and does not substantially irradiate the front row, the irradiation ranges of the two fill-in lamps can be adjusted according to actual conditions according to the layout in the cabin and the installation position of the camera device C.

It should be understood that the above-described angular range of the supplementary light region is not limited to the left and right direction, and the above-described angular range of the light region substantially satisfies the above-described definition in a plane passing through the light source and parallel to the front and rear direction, except that the angular range of the upward partial region to be described later is specifically set.

For the illumination of the upward partial area, because the camera device C is usually installed in the cabin near the car roof T, in order to avoid the light from being reflected or refracted after being irradiated to the car roof T or irradiated to the reading lamp L0 installed on the car roof T, and further affecting the imaging effect of the shooting object, the upward illumination range of the light supplement lamp is smaller than the downward illumination range.

Fig. 8 and 9 are schematic diagrams illustrating two extreme positions of the illumination areas of the first fill-in lamp 31 and the second fill-in lamp 32 in the vertical plane, i.e., upward and downward, respectively.

The limit positions of the illumination provided by the first supplementary lighting lamp 31 at the upper side and the lower side are positions of a connecting line PU and a connecting line PD respectively, and the connecting line PU and the connecting line PD are asymmetrical about a connecting line PO 1; the limit positions of the illumination provided by the second supplementary lighting lamp 32 at the upper and lower sides are the positions of the connection line QU and the connection line QD, which are asymmetric with respect to the connection line QO 2.

Connection point U, point P, and point O1 form an angle a11, connection point D, point P, and point O1 form an angle a12, connection point U, point Q, and point O2 form an angle a21, and connection point D, point Q, and point O2 form an angle a 22. Included angle a11 is less than included angle a12 and included angle a21 is less than included angle a 22.

Optionally, included angle a11 and included angle a21 both range from 25 ° to 35 °, for example included angle a11 and included angle a21 both range from 30 °.

Optionally, angle a12 is equal to half of angle a1 above, and angle a22 is equal to half of angle a2 above. For example, included angle a12 equals 40 ° and included angle a22 equals 60 °.

Next, an implementation of the above-described irradiation range will be described with reference to fig. 5 and 6.

A middle region of an outer surface of the first light supplement region 111 forms a trumpet-shaped first light blocking region M1 recessed toward the inside of the case H, and a middle region of an outer surface of the second light supplement region 112 forms a trumpet-shaped second light blocking region M2 recessed toward the inside of the case H.

Fig. 6 shows a schematic of the boundaries of the light rays emitted from the two light-compensating regions under the shielding of the light-blocking regions. The shape of the light-blocking area defines the light-blocking area, or the light-blocking area reflects the shape of the light-blocking area. For convenience of description, the boundary diagram of the light rays in the figure is also considered as an enlarged view of the light-blocking area, and parts of the light-blocking area are labeled in the figure.

The first light-blocking region M1 surrounds the first opening 111a, and the radial dimension (or opening area) of the first light-blocking region M1 decreases closer to the inner side of the housing H; the second light blocking area M2 surrounds the second opening 112a, and the radial dimension (or opening area) of the second light blocking area M2 decreases closer to the inner side of the housing H.

The first light supplement region 111 includes a first light blocking curved surface M11 and a first light blocking plane M12, and the first light blocking plane M12 is located above the first light blocking curved surface M11. The first light blocking curved surface M11 is a part of the conical surface, the first light blocking plane M12 is obliquely arranged with respect to the front-rear direction, and an angle between the first light blocking plane M12 and the front-rear direction is smaller than an angle between a generatrix of the first light blocking curved surface M11 and the front-rear direction.

The second light supplementing region 112 includes a second light blocking curved surface M21 and a second light blocking plane M22, the second light blocking plane M22 is located above the second light blocking curved surface M21, the second light blocking curved surface M21 is a part of a conical surface, the second light blocking plane M22 is obliquely arranged with the front-back direction, and an included angle between the second light blocking plane M22 and the front-back direction is smaller than an included angle between a bus of the second light blocking curved surface M21 and the front-back direction.

The conical curved surface defines an irradiation range of the fill-in lamp in each direction except an upward direction, and the plane inclined with respect to the front-rear direction defines an irradiation range of the fill-in lamp in the upward direction.

The fill-in light illuminates upward in an angular range smaller than that of the downward, which is particularly suitable when the imaging device is mounted on the roof T (including above the rear view mirror M and/or at the position of the reading light L0). This arrangement prevents the LED light from radiating to the headliner T to be reflected and/or refracted and further affect the brightness of the image captured by the sensor 40.

Next, with reference to fig. 3 and 10, a heat dissipation structure of the image pickup device C will be described.

Referring first to fig. 3, a plurality of shark fin-shaped heat dissipation fins 121 protruding toward the outside of the housing 10 are formed on the back surface of the rear case 12, that is, the surface facing away from the lens 20 (or the surfaces facing away from the first fill light 31 and the second fill light 32). The heat radiating fins 121 increase the surface area of the housing 12, enhancing the heat radiating effect of the housing 12. In addition, the rib shape of the heat dissipating fins 121 also provides a reinforcing rib function, which can enhance the structural strength of the rear case 12.

Optionally, the material of which the rear shell 12 is made includes a metal, such as aluminum, to facilitate a faster dissipation of heat from the housing 10 to the outside.

Referring to fig. 10, a surface of the first light supplement region 111 located inside the housing H is a plane, and the plane is used for contacting with a circuit board of the first light supplement lamp 31; the surface of the second light supplement region 112 inside the housing H is a plane, and the plane is used for contacting with a circuit board of the second light supplement lamp 32. The first fill light 31 and the second fill light 32 are in direct contact with the housing 10 to achieve faster heat conduction.

Returning to fig. 3, the rear housing 12 is also adapted to be connected to a bracket (not shown) that holds the camera C. Next, a mounting structure of the housing 10 for connection with a bracket will be described.

A plurality of (two in the present embodiment) mounting screw holes 122 are formed in the back surface of the rear case 12, and the mounting screw holes 122 have internal threads, and the imaging device C can be mounted on the stand using screws that engage with the screw holes 122.

Alternatively, the specific model of the bracket may also be different, for example according to different vehicle models, but the fixing position of the screw in the bracket is the same. So that one model of the image pickup apparatus C can be adapted to different models of mounting objects.

In order to facilitate the installation and positioning of the housing 10 and the bracket, a plurality of (three in the present embodiment) positioning portions 123 are further formed on the back surface of the rear case 12. The positioning part 123 in this embodiment protrudes from the back surface of the rear case 12, and can be matched with the concave part of the bracket to realize positioning.

Next, a usage scenario and a method of the image pickup apparatus C according to the present disclosure are described.

The camera C can be in a normally open state and records images in the cabin in real time; or at least in the opening state during the running process of the vehicle and a period of time after the vehicle stops running; or at least in the open state in case of an emergency (e.g. a collision or breakage of the vehicle).

The camera C may select different operating modes for different lighting situations. In the case of sufficient light, the imaging device C uses an additive mode to take an image; in the case of insufficient light, infrared mode imaging is used.

For different situations where there is a driver or a passenger in the cabin, the image captured by the camera C may be used to provide image or video data for analysis of the corresponding scene, respectively.

For example, in the case where there is a person in the cabin, the camera C may record an image or video of the environment in the cabin, identify the status in the cabin, and identify the identity, age, emotion, or expression (including, for example, happy, angry, sad, surprised, calm, etc.) of the passenger (or the subject).

For another example, in the case where no person is present in the cabin, images or videos of the environment in the cabin may be recorded, the state in the cabin may be identified, the presence or absence of a left-behind article, a child or a pet may be identified, and the act of stealing the article in the cabin may be identified.

It is to be understood that the present disclosure also provides a running tool, such as a vehicle, a boat, or an airplane, etc., including the above-described camera device.

It should be understood that the present disclosure also provides a rearview mirror including the above-described image pickup device, which includes a rearview mirror body and an image pickup device detachably connected to the rearview mirror body. The camera device is arranged in the rearview mirror, the space in the vehicle can be saved, and the camera device can be conveniently installed and maintained in a detachable connection mode.

The present disclosure has at least one of the following advantages:

(i) according to the camera device C disclosed by the invention, the illumination intensity can be automatically judged, the infrared lamp is used for supplementing light under the condition of insufficient illumination, and the infrared ray used for supplementing light is not easy to irradiate the cabin top to cause the stray light phenomenon. The shot image has high quality.

(ii) This is disclosed through providing the light filling lamp that two irradiation ranges are different for the shooting object of the difference of distance camera device C can obtain more even light filling, makes under the not enough condition of illumination, still can obtain the image quality, and each regional image quality unanimous image quality in picture.

(iii) The camera device is simple in structure, convenient to position and install, good in heat dissipation performance and high in reliability.

(iv) According to the imaging apparatus of the present disclosure, for example: the whole car cabin is used for photographing and recording videos, whole car member interaction is recorded, the identity (including sex), age and emotion of a photographing object are identified, left children or articles are identified, functions such as anti-theft are provided, and the requirements of different consumers are met.

Of course, the present disclosure is not limited to the above-described embodiments, and those skilled in the art can make various modifications to the above-described embodiments of the present disclosure without departing from the scope of the present disclosure under the teaching of the present disclosure.

For example:

(i) although the first fill-in light 31, the second fill-in light 32, and the lens 20 are arranged in a row in the left-right direction to make the size of the image pickup device C smaller in the up-down direction, in other possible embodiments, the first fill-in light 31 and the second fill-in light 32 may be arranged in a vertically staggered manner. The first fill-in lamp 31 and the second fill-in lamp 32 may be disposed on the same side of the lens 20.

It is to be understood that the first fill light 31 and the second fill light 32 need not always be operated simultaneously. The first fill-in light 31 may be operated alone, and the second fill-in light 32 may be operated alone. For example, when only the front area needs to be photographed, or when the front area is mainly photographed (for example, only the front area has a passenger), only the second fill light 32 may be operated and the first fill light 31 may not be operated.

(ii) The optical axis direction a of the lens 20 is described as being parallel to the horizontal direction by default, but this is not essential, and the image pickup device C may be mounted in such a manner that the optical axis direction a is slightly inclined downward.

Claims

1. A camera device is characterized by comprising a shell, a lens, a first light supplement lamp and a second light supplement lamp, wherein the first light supplement lamp and the second light supplement lamp are arranged towards the imaging side of the camera device and are used for irradiating infrared light to a shooting object positioned outside the shell,

2. The imaging apparatus according to claim 1, wherein an angle range that the first fill-in lamp can irradiate is 35 ° to 45 ° larger than an angle range that the second fill-in lamp can irradiate in the first direction.

3. The imaging apparatus according to claim 1, wherein in the first direction, an angle range that the first fill-in lamp can irradiate is 80 °, and an angle range that the second fill-in lamp can irradiate is 120 °.

4. The image pickup apparatus according to claim 1, wherein a height of a light emitting center of the first fill-in lamp is equal to a height of a light emitting center of the second fill-in lamp in a second direction which is parallel to an imaging plane of the image pickup apparatus and perpendicular to the first direction.

5. The image pickup device according to any one of claims 1 to 4, wherein a surface of the housing is formed with a first light-compensating region and a second light-compensating region,

6. The image pickup device according to claim 5, wherein the first light supplement region includes a first light blocking curved surface and a first light blocking plane connected to each other, and the first light blocking plane is located above the first light blocking curved surface; and/or

7. The image pickup apparatus according to claim 6, wherein the first light blocking curved surface is a part of a tapered surface, the first light blocking plane has a first inclination angle with respect to a third direction, and the first inclination angle is smaller than an angle between a generatrix of the first light blocking curved surface and the third direction; and/or

8. The image pickup apparatus according to claim 5, wherein a surface of the first light supplement region inside the housing is a plane and is in contact with a circuit board of the first light supplement lamp,

9. The imaging device according to any one of claims 1 to 8, wherein a plurality of heat dissipation fins are formed on at least one surface of the housing that faces away from the first fill light and the second fill light.

10. The image pickup apparatus according to claim 9, wherein a material of the housing includes metal.

11. The image pickup device according to any one of claims 1 to 10, further comprising a sensor, a main board, and a sealing gasket,

the sensor is arranged on one side of the main board facing the lens,

12. The image pickup device according to claim 11, wherein at least one of the first fill-in light and the second fill-in light is an infrared fill-in light; and/or

13. The image pickup apparatus as set forth in any one of claims 1 to 12, wherein said housing is formed with one or more mounting screw holes for fitting with screws for connecting said housing with a bracket for supporting said housing.

14. The image pickup apparatus according to any one of claims 1 to 13, wherein the housing is formed with one or more positioning portions for cooperating with a bracket that supports the housing to determine a mounting position of the housing with respect to the bracket.

15. The camera device according to any one of claims 1 to 14, wherein the camera device is configured to provide image basis for at least one of the following recognition functions:

16. A vehicle characterized by comprising an image pickup device provided in a vehicle cabin, the image pickup device being according to any one of claims 1 to 15.

17. Vehicle according to claim 16, characterized in that the camera device is arranged above a rear view mirror in the cabin and/or

18. A rearview mirror, comprising: a mirror body and an image pickup apparatus according to any one of claims 1 to 17, the mirror body being detachably connected to the image pickup apparatus.