CN109765674A

CN109765674A - Camera module

Info

Publication number: CN109765674A
Application number: CN201811326024.0A
Authority: CN
Inventors: 近多健辅; 风间刚支; 古武泰树; 秋叶一芳; 奥田翔; 清水信寿
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2017-11-10
Filing date: 2018-11-08
Publication date: 2019-05-17
Anticipated expiration: 2038-11-08
Also published as: JP2022104638A; JP7302697B2; CN109765668B; JP2022095733A; CN109765673B; JP7310961B2; DE102018218986B4; CN109765673A; DE102018218992A1; DE102018218986A1; DE102018218992B4; JP2022095732A; DE102018218997A1; CN109765668A; JP7310960B2; CN109765674B

Abstract

A kind of camera module, it the inside of its front windshield for being mounted on vehicle (2) (3) and is configured to that the external environment (5) of vehicle is imaged, the camera module includes: that the optical imagery of external environment distinguishes multiple lens units (30 incident thereon, 2030,3030,10030)；And imaging system (50), for generating the external image of external environment by being imaged respectively by each of lens unit.

Description

Camera module

Technical field

This disclosure relates to camera module.

Background technique

Routinely, it is mounted on the inside of the windscreen of vehicle and is configured to the external environment of vehicle is imaged Camera module is widely known.A kind of aforementioned camera module has been disclosed in patent document 1.

(patent document 1)

Japanese patent publication the 5316562nd

The a type of camera module of the disclosure is disclosed in Japanese documentation 1, wherein coming from external rings The light in border enters vehicle camera shooting device by lens, and thus external environment is imaged.

In recent years, required camera module that the external environment of wide scope is imaged to identify for vehicle It is advanced to drive the image supported or driven certainly.In order to meet above-mentioned requirements, it can be envisaged that using for surrounding optical axis by having Wide viewing angle lens unit technology that external environment is imaged.However, in the lens unit with wide viewing angle, from The depth of field is closer when occupant's viewing of vehicle.Therefore, there arises a problem that when being watched from the occupant of vehicle in the model of deeper side Enclose interior pixel resolution deterioration.Thus, it can be assumed that using for by using the lens unit with wide viewing angle and with narrow Both lens units at visual angle are come technology that external environment is imaged.

In the technology that lens are applied in combination, in order to which the external environment in wide scope is imaged, it is desirable that lens Each of unit is in the arrangement that the visual angle of each lens unit overlaps each other.However, according to each lens unit The optical axis of arrangement relation, lens unit is separated from each other in the lateral direction of the vehicle.In this case, such as Figure 50 (a) and figure Shown in 50 (b), the external image generated, reflection phase is imaged by carrying out respectively by each lens unit to external environment The position coordinates (being hereinafter referred to only as " position coordinates ") relative to optical axis Aw and An with the pixel of position Pw and Pn can It can significantly deviate in a lateral direction.Transverse direction is needed for the advanced camera module supported or driven certainly that drives On hi-vision position precision, and the problem of cause vehicle blind spot in a lateral direction rather than in the vertical direction.For This, the position coordinates between the external image generated by each lens unit deviate the case where increasing in a lateral direction Under, there is the problem of picture position precision in transverse direction may be decreased.

In addition, as described above, lens are applied in combination and the technology for making the visual angle of each lens unit overlap each other makes External environment in wide scope can be imaged.In addition, the technology that lens are applied in combination makes the depth of field of each lens unit It overlaps each other, is enable to carry out continuous imaging to the object relatively moved in the overlapping region of external environment.However, It can hardly distinguish in image recognition by carrying out that the outside generated is imaged respectively to external environment by each lens unit In the case where the object of relative movement in image, there is the problem of object is lost in the region that the depth of field overlaps each other.

Incidentally, as the visual angle of lens unit broadens, be incident on excessive light on each of lens unit into One step increases.Thus, it can be envisaged that using cover.However, according to the arrangement relation of each lens unit, the photographic device including cover The size of module increases, and generates the view of the large scale camera module interference external environment for the vehicle occupant in windscreen Wild problem.

In the technology that lens are applied in combination, the axial position of each lens unit is different in each vehicle.? It is determined in such structure of the axial position of each lens unit respectively, the positional relationship of these units may be in the axis of vehicle Change on direction increasing.The axial position of each lens unit is adjusted separately when manufacturing camera module to reduce In the case where variation, productivity may be decreased.

Summary of the invention

As described above, a purpose of the disclosure is to provide, a kind of have can be in such a way that image be can recognize to external environment The camera module for the new construction being imaged.

The another object of the disclosure be to provide it is a kind of for by multiple lens units with the height in the transverse direction of vehicle The camera module that external environment is imaged in picture position precision.

The another object of the disclosure be to provide it is a kind of for be limited in by via multiple lens units to external environment into The camera module that object is lost in the capable external image for being imaged and generating.

The another object of the disclosure is to provide a kind of compact camera module with cover and multiple lens units.

The another object of the disclosure is to provide a kind of positioning accuracy for making it possible to ensure that multiple lens units in vehicle Camera module.The another object of the disclosure is to provide a kind of with large-duty camera shooting including multiple lens units Apparatus module.

Hereinafter, the technical solution of the disclosure will be described.It should be noted that the attached drawing mark in bracket described in the column Note indicates corresponding with specific device described in the embodiment to be described in detail later, and does not limit the technology of the disclosure Range.

According in a first aspect, camera module (1) is configured to be mounted on the inside of the windscreen (3) of vehicle (2) And the external environment of vehicle (5) is imaged.Camera module includes being respectively provided with the multiple of optical axis (Aw, An, At) Lens unit (30,2030,3030).Optical axis is offset from one another.The optical imagery of external environment respectively enters respectively around optical axis In visual angle (θ w, θ n, θ t).(θ w, θ n, θ t) is different from each other at visual angle.Camera module further includes imaging system (50) with respectively The external image for being imaged and generating external environment is executed by lens unit.Referring to that group is that visual angle (θ w, θ n, θ t) is handed over each other Under the restriction of one group of folded lens unit, belongs in the vertical direction viewing along vehicle and refer to that the lens unit of group is handed over each other It is folded.

According in a first aspect, referring to that the lens unit of group is configured so that optical axis is offset from one another, around the visual angle of optical axis It is different from each other, and visual angle overlaps each other.It is referred in group above-mentioned, belongs in the vertical direction viewing along vehicle and refer to group In the arragement construction that lens unit overlaps each other, optical axis is close to each other in the lateral direction of the vehicle.According to the configuration, respectively Referred in external image that each lens unit of group generates by belonging to, reflect the pixel of same section relative to optical axis The far less likely to occur big lateral shift of position coordinates.Therefore, the configuration make it possible to by via belong to refer to group it is each Lens unit is imaged external environment to improve the picture position precision in transverse direction.

According to second aspect, belongs to and refer to that the lens unit (30,2030,3030) of group includes having to pass through wide-angle lens The wide-angle unit (30w, 2030w, 3030w) at the visual angle (θ w) that (34w) is limited.Lens unit (30,2030,3030) further includes tool There is the narrow angle unit (30n, 2030n, 3030n) at the visual angle (θ n, θ t) of the narrow viewing angle than wide-angle unit.Limit the knowledge of wide-angle unit The far point (Dwf) of other depth of field (Dw) is located at deeper side, the near point beyond the identification depth of field (Dn) for limiting narrow angle unit (Dnc)。

According to second aspect, there is wide viewing angle as the lens unit for referring to group in the vertical direction viewing along vehicle Wide-angle unit and the arragement construction that overlaps each other of narrow angle unit with narrow viewing angle in, optical axis in the lateral direction of the vehicle that This is close.Reflect same section in passing through the external image that wide-angle unit and narrow angle unit generate respectively according to the configuration The far less likely to occur big lateral shift of the position coordinates of pixel.External image passes through narrow angle unit and wide-angle unit.Wide-angle list Member have wherein far point be arranged on deeper side, beyond narrow angle unit identification depth of field near point identification depth of field, with Wide scope inner focusing image including the overlapping region in those identification depth of field.In this way, which makes it possible to To the picture position precision improved in the imaging of external environment in transverse direction.

According to the third aspect, belong to refer to group lens unit (30,2030) further include have than narrow angle unit (30n, The unit of looking in the distance (telescopic unit) (30t, 2030t) at the visual angle (θ t) of narrow viewing angle 2030n).Limit narrow angle unit The far point (Dnf) of identification depth of field (Dn) is located at deeper side, the near point beyond the identification depth of field (Dt) for limiting unit of looking in the distance (Dtc)。

According to the third aspect, wide-angle unit, narrow angle unit and unit of looking in the distance are to belong to the lens unit for referring to group.It looks in the distance list Narrow viewing angle of the visual angle of member than wide-angle unit and narrow angle unit.In the vertical direction viewing along vehicle, wide-angle unit, narrow angle are single In member and the arragement construction that unit overlaps each other of looking in the distance, optical axis is close to each other in the lateral direction of the vehicle.According to the configuration, Respectively in the external image by wide-angle unit, narrow angle unit and unit of looking in the distance generation, reflect the position of the pixel of same section The far less likely to occur big lateral shift of coordinate.Narrow angle unit is arranged on deeper side beyond unit of looking in the distance with wherein far point Identify the identification depth of field of the near point of depth of field.Wide-angle unit has identification depth of field as described above.External image passes through Unit, narrow angle unit and wide-angle unit look in the distance to include the wide scope inner focusing of the overlapping region of corresponding two identification depth of field Image.In this way, which makes it possible to improve the picture position essence in transverse direction in the imaging to external environment Degree.

According to fourth aspect, camera module (1) is configured to be mounted on the inside of the windscreen (3) of vehicle (2) And the external environment of vehicle (5) is imaged.Camera module includes being respectively provided with the multiple of optical axis (Aw, An, At) Lens unit (6030).Optical axis is offset from one another.The optical imagery of external environment respectively enters visual angle (the θ w, θ for surrounding optical axis respectively N, θ t) in.(θ w, θ n, θ t) is different from each other at visual angle.Camera module further includes imaging system (50), to respectively by saturating Mirror unit executes the external image for being imaged and generating external environment.Camera module further includes limiting imaging space (410) Cover (6040,9040), which is used for the optics of the external environment within the scope of the imageable target of imaging system Image is guided to lens unit, and is limited light and be incident on lens unit except imageable target range.In lens unit One lens unit is the wide-angle unit (6030w) with the visual angle (θ w) limited by wide-angle lens (34w).In lens unit Another lens unit be with than the narrow viewing angle of wide-angle unit visual angle (θ n, θ t) narrow angle unit (6030n, 6030t, 7030n, 7030t, 8030n, 8030t).Cover includes: base wall portion (41,9041), be oriented via imaging space towards Windscreen；And sidewall sections (6043,9043), imaging space cross side from base wall portion rise, and with wide-angle list Correspondingly from the periphery of wide-angle unit, ambient side is laterally inclined outwardly towards the outside at the visual angle (θ w) of member.Narrow angle window of exposure (6431n, 6431t) is exposed to imaging in sidewall sections split shed, and by narrow angle unit in the external environment side of wide-angle unit Space.

According to the cover of fourth aspect, from the periphery of wide-angle unit, ambient side tilts sidewall sections towards the outside.Sidewall sections exist The cross side of imaging space is tilted according to the visual angle of wide-angle unit.Imaging space guides the optical imagery within the scope of imageable target Wide-angle unit and narrow angle unit into lens unit.In this example, external environment of the narrow angle window of exposure in wide-angle unit Any sidewall sections split shed of the side in sidewall sections, to expose narrow angle unit towards imaging space.According to the configuration, narrow angle is single The visual angle of member is fallen in the inside at the visual angle of the wide-angle unit of gradient for adjusting sidewall sections, with total between the two units Enjoy imaging space.Therefore, which makes it possible to be formed in the tilted sidewall sections of range required for wide-angle unit, wherein Narrow angle window of exposure is in the sidewall sections split shed.In this way, it includes the photographic device covered which, which makes it possible to reduce, The size of module.

According to the 5th aspect, lens unit further includes with the narrow viewing angle than narrow angle unit (6030n, 7030n, 8030n) Visual angle (θ t) unit of looking in the distance (6030t, 7030t, 8030t).Window of exposure (6431t) look in the distance in external ambient side and exceeds Wide-angle unit in sidewall sections split shed, and the unit that will look in the distance is exposed to imaging space.

According to the cover of the 5th aspect, from the periphery of wide-angle unit, ambient side tilts sidewall sections towards the outside.Sidewall sections exist The cross side of imaging space is tilted according to the visual angle of wide-angle unit.Imaging space guides the optical imagery within the scope of imageable target Wide-angle unit into lens unit and unit of looking in the distance.In this example, look in the distance window of exposure wide-angle unit external environment Any sidewall sections split shed of the side in sidewall sections, to expose unit of looking in the distance towards imaging space.According to this structure, it looks in the distance list In the inside at the visual angle that the visual angle of member falls in wide-angle unit, to share imaging space between the two units.Wide-angle unit tune Save the gradient of sidewall sections.Therefore, which makes it possible to for sidewall sections being limited in range required for wide-angle unit, Window of exposure wherein look in the distance in sidewall sections split shed and sidewall sections are inclined.In this way, which makes it possible to Enough sizes for reducing the camera module including cover.

According to the 6th aspect, camera module (1) is configured to be mounted on the inside of the windscreen (3) of vehicle (2) And the external environment of vehicle (5) is imaged.Camera module includes being respectively provided with the multiple of optical axis (Aw, An, At) Lens unit (30,2030,3030).Optical axis is offset from one another.The optical imagery of external environment respectively enters respectively around optical axis In visual angle (θ w, θ n, θ t).(θ w, θ n, θ t) is different from each other at visual angle.Camera module further includes imaging system (50), to divide The external image for being imaged and generating external environment is not executed by lens unit.Refer to group be visual angle (θ w, θ n, θ t) each other Under the restriction of one group of overlapping lens unit, belongs to and refer to that the identification depth of field (Dw, Dn, Dt) of the lens unit of group is handed over each other It is folded, wherein in external environment, the far point (Dwf, Dnf) of another lens unit in lens unit in lens unit one Between the near point (Dnc, Dtc) of a lens unit and far point (Dnf, Dtf), and the far point of one lens unit and described Each of far point of another lens unit limits real and being imaged via the respective lens unit in lens unit The extreme position (limit position) of existing image recognition.

According to the 6th aspect, refer to that the lens unit of group is configured so that optical axis is offset from one another, around the visual angle of optical axis It is different from each other, and visual angle overlaps each other.In external environment, the identification of another lens unit in the lens unit of group is referred to The far point of depth of field is arranged between the near point and far point of identification depth of field of a lens unit in lens unit.This is matched It sets to form the region that these identification depth of field overlap each other.In the far point and lens unit of a lens unit in lens unit Another lens unit far point limit by carrying out that the figure realized is imaged respectively to external environment by each lens unit As the extreme position of identification.The configuration makes it possible to distinguish in image recognition to be mentioned by what wherein identification depth of field overlapped each other And in any external image in each lens unit external image generated of group, relatively moved in overlapping region Object.Therefore, which makes it possible to be limited in as by referring to that external environment is imaged in each lens unit of group Result external image in object in each region for overlapping each other of identification depth of field lose.

According to the 7th aspect, camera module (1) is configured to be mounted on the inside of the windscreen (3) of vehicle (2) And the external environment of vehicle (5) is imaged.Camera module includes being respectively provided with the multiple of optical axis (Aw, An, At) Lens unit (30,2030,3030,6030,10030).Optical axis is offset from one another.The optical imagery of external environment respectively enters difference In the visual angle (θ w, θ n, θ t) of optical axis.(θ w, θ n, θ t) is different from each other at visual angle.Camera module further includes imaging system (50), to execute the external image for being imaged and generating external environment by lens unit respectively.Camera module is also wrapped Include the photographic device shell (20) for attaching to windscreen and accommodating each lens unit.Camera module further includes for saturating It is that mirror unit is publicly arranged and position the public fixed of each lens unit relative to photographic device shell in the axial direction Position component (10060).

According to the 7th aspect, in the car, each lens unit is accommodated in the photographic device shell for being attached to windscreen. By using the public public positioning member of these units in axial direction position individual lens unit.In this way, public Positioning member makes it possible to reduce the variation of the mutually axially positional relationship of each lens unit in vehicle.That is, should Configuration makes it possible to ensure that the positioning accuracy of each lens unit in vehicle.Furthermore, it is possible to by using public positioning member To adjust the axial position of each lens unit jointly.It is thus possible to improve productivity.

According to eighth aspect, public positioning member includes abutting each lens unit in the axial direction with by each lens The reference surface part (10601) of cell location in the same plane.

According to the public positioning member of eighth aspect, in the car, reference surface part abuts each in the axial direction Lens unit is positioned in all units on same plane.According to the configuration, in the car, each lens unit can be by It is positioned accurately on same plane.Therefore, hardly occurs the sheet of mutually axially positional relationship in each lens unit Qualitative change.In other words, each lens unit in vehicle can be positioned with high precision.In addition, lens unit can pass through adjoining Reference surface part easily and is jointly in axial direction positioned in the same plane.Therefore, which makes it possible to promote Into high production rate.

Detailed description of the invention

It will become according to above and other objects, features and advantages described in detail below, of the invention are done referring to attached drawing It obtains more obvious.In the accompanying drawings:

Fig. 1 is the front view for showing the vehicle using camera module according to first embodiment；

Fig. 2 is the cross section for showing the camera module of the line II-II interception in Fig. 5 according to first embodiment Figure；

Fig. 3 is the perspective view for showing camera module according to first embodiment；

Fig. 4 is the top schematic view for showing the areas imaging of each lens unit according to first embodiment；

Fig. 5 is the front view for showing the arrangement relation of each lens unit according to first embodiment；

Fig. 6 (a), Fig. 6 (b) and Fig. 6 (c) are shown through each lens unit according to first embodiment to external rings Border is imaged and the front-view schematic diagram of external image that generates；

Fig. 7 is the cross-sectional view for showing the camera module corresponding to Fig. 2 according to second embodiment；

Fig. 8 is the camera module for showing the line VIII-VIII interception in Figure 10 according to third embodiment Cross-sectional view；

Fig. 9 is shown according to the transversal of the line IX-IX in Figure 10 of the third embodiment camera module intercepted Face figure；

Figure 10 is the front view for showing the arrangement relation of each lens unit according to third embodiment；

Figure 11 is the schematic top view for showing the areas imaging of each lens unit according to the 4th embodiment；

Figure 12 is the schematic top view for showing the areas imaging of each lens unit according to the 5th embodiment；

Figure 13 is the cross shown according to the line VIII-VIII along Figure 18 of the sixth embodiment camera module intercepted Sectional view；

Figure 14 is shown according to the transversal of the line XIV-XIV along Figure 18 of the sixth embodiment camera module intercepted Face figure；

Figure 15 is the cross section shown according to the line XV-XV along Figure 18 of the sixth embodiment camera module intercepted Figure；

Figure 16 is the perspective view for showing the camera module according to sixth embodiment；

Figure 17 is the top view for showing the cover according to sixth embodiment；

Figure 18 is the front view for showing the arrangement relation of each lens unit according to sixth embodiment；

Figure 19 is the cross-sectional view for showing the camera module corresponding to Figure 14 according to the 7th embodiment；

Figure 20 is the cross-sectional view for showing the camera module corresponding to Figure 15 according to the 7th embodiment；

Figure 21 is the top view for showing the cover according to the 7th embodiment；

Figure 22 is the cross-sectional view for showing the camera module corresponding to Figure 14 according to the 8th embodiment；

Figure 23 is the cross-sectional view for showing the camera module corresponding to Figure 15 according to the 8th embodiment；

Figure 24 is the top view for showing the cover according to the 8th embodiment；

Figure 25 is the cross-sectional view for showing the camera module corresponding to Figure 13 according to the 9th embodiment；

Figure 26 is the perspective view for showing the camera module according to the 9th embodiment；

Figure 27 is the top view for showing the cover according to the 9th embodiment；

Figure 28 is the front-view schematic diagram for showing the control function according to the 9th embodiment；

Figure 29 is the schematic top view for showing the vehicle control function according to the 9th embodiment；

Figure 30 is the schematic top view for showing the structure of the cover according to the 9th embodiment；

Figure 31 is the schematic side elevation for showing the vehicle control function according to the 9th embodiment；

Figure 32 is the schematic side elevation for showing the vehicle control function according to the 9th embodiment；

Figure 33 is the cross-sectional view for showing the camera module corresponding to Fig. 2 according to the tenth embodiment；

Figure 34 is the cross-sectional view for showing the modification of Fig. 7；

Figure 35 is the front view for showing the modification of Fig. 5；

Figure 36 is the front view for showing the modification of Fig. 5；

Figure 37 is the front view for showing the modification of Fig. 5；

Figure 38 is the cross-sectional view for showing the modification of Fig. 8；

Figure 39 is the cross-sectional view for showing the modification of Fig. 9；

Figure 40 is the cross-sectional view for showing the modification of Fig. 7；

Figure 41 is the cross-sectional view for showing the modification of Figure 27；

Figure 42 is the cross-sectional view for showing the modification of Figure 27；

Figure 43 is the cross-sectional view for showing the modification of Fig. 8；

Figure 44 is the cross-sectional view for showing the modification of Fig. 9；

Figure 45 is the cross-sectional view for showing the modification of Figure 34；

Figure 46 is the cross-sectional view for showing the modification of Fig. 7；

Figure 47 is the top view for showing a modification of Figure 17；

Figure 48 is the cross-sectional view for showing the modification of Fig. 2；

Figure 49 is the cross-sectional view for showing the modification of Fig. 2；And

Figure 50 (a) and Figure 50 (b) is the front-view schematic diagram for showing the external image described the problem.

Specific embodiment

Hereinafter, multiple embodiments of the disclosure be will be described with reference to the accompanying drawings.In embodiments, identical attached drawing Label is assigned to corresponding element, and can be omitted its redundancy description.Configuration in each embodiment is being described only When a part, the configuration of the other embodiments described in advance can be applied to other parts.In addition to saying in embodiment Except the combination for the configuration clearly described in bright, as long as not going wrong especially in combination, even if unclear In the case that ground describes, the configuration of multiple embodiments can also be partly combined with each other.

(first embodiment)

As shown in Figures 1 and 2, according to first embodiment camera module 1 be mounted on car 2 and by It is configured to that external environment 5 is imaged.In the following description, the vertical direction of the vehicle 2 on horizontal plane is configured to vertical direction, The vehicle-width direction of vehicle 2 in the horizontal direction of vehicle 2 in the horizontal plane is configured to transverse direction, and in level The longitudinal direction of car direction of vehicle 2 on direction is configured to longitudinal direction.

Camera module 1 is installed on the inside of the front windshield 3 in vehicle 2.Front windshield 3 is located at driving in vehicle 2 The front at the person of sailing seat.Front windshield 3 separates compartment 4 and external environment 5, and compartment 4 is in the inside of front windshield 3.Front windshield 3 more connects Nearly downside, when watching from the occupant of vehicle 2, front windshield 3 is more tilted towards front side (that is, 5 side of environment towards the outside) in deeper side.Before Windscreen 3 is made of the translucent material of such as glass the optical imagery of the landscape incidence from external environment 5 is transmitted to compartment 4 In.

The installation site of camera module 1 to front windshield 3 is arranged on will not interfere the driving being sitting in compartment 4 substantially At the position in the visual field of the occupant on member seat.More specifically, as shown in fig. 1, vertically-mounted position in the vertical direction by It is arranged in the range Xv of the top edge for example, about 20% of the opening window 6a of distance post 6.In vehicle 2, column 6 is frame shape And keep the outer peripheral edge portion of front windshield 3.Position is transversely mounted to be arranged in a lateral direction for example from opening window When the center of 6a is to two each in the range Xh of about 15cm.It is arranged by these, installation site, which is located at, wipes preceding wind In the wiping range Xr of the windscreen wiper of gear 3.It is tilted for example in addition, installation site is located at front windshield 3 relative to front-rear direction At about 22 ° to 90 ° of part.

As shown in Figures 2 and 3, camera module 1 includes bracket component (bracket assembly) 10, camera shooting dress Set shell 20, multiple lens units 30, cover 40 and imaging system 50.In Fig. 3, component is partially omitted from diagram.

Bracket component 10 includes combined rack body 11 and installation pad 12.Rack body 11 can be opposite by such as resin The rigid material for being easy molding is made, and with substantially plate like shape monolithic molding.Inner surface of the rack body 11 along front windshield 3 3a arrangement.As shown in Figure 2, installation pad 12 is assembled and is fixed to rack body 11.Each of pad 12 is installed by gluing Close the inner surface 3a for being fixed to front windshield 3.In this way, the camera module 1 including bracket component 10 relative to Vehicle 2 is installed in 3 inside of front windshield in the state of positioning.

Photographic device shell 20 includes a pair of shells component 21 and 22.Each of housing member 21 and 22 is by such as aluminium The rigid material with relatively high heat-radiating properties be made, and with hollow shape monolithic molding.

It is opposite with component 10 being directed toward its opening portion that the upper case member of falling cupuliform 21 is located at the downside of bracket component 10 Downside.Upper case member 21 is fixedly assembled to rack body 11.In this way, photographic device shell 20 passes through bracket Component 10 is positioned in 3 inside of front windshield.Upper case member 21 and front windshield 3 in above-mentioned positioning posture define therebetween use In the receiving recess portion 212 of housing 40.

Dish type (dish-shaped) lower housing member 22 is located at the downside of upper case member 21 so that its opening portion to be directed toward Upside in 21 side of upper case member.Lower housing member 22 is tightly solid to upper case member 21 by screw.In this way, Limit to the coordination with one another of housing member 21 and 22 accommodation space 25 for accommodating lens unit 30 and imaging system 50.

Multiple (being in the present embodiment three) lens units 30 are located in the accommodation space 25 of photographic device shell 20. As shown in Figures 2 and 3, the front end of each lens unit 30 is exposed to photographic device shell 20 by common lens window 211 Outside.Common lens window 211 penetrates the vertical wall part 210 of upper case member 21.In this way, in each lens list In member 30 around corresponding optical axis Aw, An for being offset from one another and At be arranged as shown in Figure 4 the different view angle theta w of mutual size, θ n and θ t.The optical imagery of external environment 5 can be incident on respectively on each lens unit 30 enter each view angle theta w, θ n and In θ t.

As shown in Figures 2 and 3, cover 40 such as by it is resin molded it is equal be integrally formed with rack body 11, to be formed A part of bracket component 10.When watching from upside, the profile of cover 40 is optical axis Aw, An relative to each lens unit 30 With At dish-shaped shape symmetrical in a lateral direction.Cover 40 has base wall portion 41 and sidewall sections 43.

As shown in Figure 2, base wall portion 41 is accommodated in the receiving recess portion 212 between upper case member 21 and front windshield 3 In.Base wall portion 41 is with base wall portion 41 closer to front side then attitude orientation of the base wall portion 41 closer to the front windshield 3 of upside. The bottom wall surface 41a of base wall portion 41 is via the imaging space 410 shown in Fig. 2 and Fig. 3 about optical axis Aw, An and At with face Substantially planar shape expansion to the inner surface 3a of front windshield 3.In this condition, within the scope of the imageable target of imaging system 50 The optical imagery of external environment 5 is directed to each lens unit 30 from imaging space 410 after having already passed through front windshield 3.

Sidewall sections 43 are positioned in transverse direction at relative to the monosymmetric position of optical axis Aw, An and At, with Imaging space 410 is intervened therebetween from two cross sides of imaging space 410.Cross of each sidewall sections 43 from base wall portion 41 To side edge to rise, and each it is shaped as straight plate-like shape.Between each sidewall sections 43 in a lateral direction Mutual distance gradually broaden towards front side.By the configuration, the front end of each lens unit 30 passes through each sidewall sections 43 Part between rear end is exposed to imaging space 410.Each height of the sidewall sections 43 away from base wall portion 41 gradually subtracts towards front side It is small.In this way, as shown in Figure 2, each sidewall sections 43 are with the inner surface in its entire longitudinal region with front windshield 3 The attitude orientation of 3a spaced apart at gaps 430.

By the configuration, cover 40 limits imaging space 410 according to view angle theta w, θ n and the θ t of each lens unit 30, to permit Perhaps the optical imagery of the external environment 5 within the scope of imageable target is incident on each lens unit 30.In addition, cover 40 limits imaging Space 410 is incident on each lens unit 30 with the excessive light for limiting the external environment 5 except imageable target range, example Such as by the incidence of the inner surface 3a of front windshield 3 reflected light reflected.

Imaging system 50 includes the multiple Imager cells 51 combined with control panel 54 and control circuit 55.Imaging system 50 Component 51,54 and 55 be located in the accommodation space 25 of photographic device shell 20.

(being in the present embodiment three) Imager cells 51 are located at each lens unit 30 different from each other Rear side.In this example, each according to the focal length corresponding with view angle theta w, θ n and θ t different from each other of each lens unit 30 The position of Imager cells 51 is offset from one another in a longitudinal direction.Each of Imager cells 51 include imaging plate 510, figure As pick device 511 and imaging circuit 512.Imaging plate 510 is formed by the rigid circuit board of such as glass epoxy board, and It is formed generally rectangular plate shape.Image pick-up device 511 is configured with the color-type or monochrome of such as CCD or CMOS Type imager, and be installed on imaging plate 510.Image pick-up device 511 have along respectively with the vehicle 2 on horizontal plane Vertically and horizontally corresponding vertical direction and multiple pixels for arranging in the matrix form of transverse direction.Imaging circuit 512 include being capable of handling multiple circuit elements of the output of image pick-up device 511, and be installed on imaging plate 510.

In each of Imager cells 51, pass through phase from external environment 5 by the optical imagery that front windshield 3 transmits Lens unit 30 is answered to be formed on image pick-up device 511.In each of Imager cells 51, image pick-up device 511 optical imagerys that are formed thereon of capture, and imaging circuit 512 handle the signal exported from image pick-up device 511 or Data.

Control panel 54 is formed by the rigid circuit board of such as glass epoxy board, and is formed generally rectangular plate Shape.Control panel 54 is positioned between two housing members 21 and 22.Aerial lug 542 be installed on control panel 54 with It is exposed to outside photographic device shell 20.Aerial lug 542 is connected to the external circuit outside photographic device shell 20, such as ECU.In this example, aerial lug 542 is installed in prominent substrate portion 543.Substrate portion 543 is protruded from control panel 54 posterior edges 544 further protrude backward.Incidentally, although being not shown, according to camera module 1 in preceding wind Installation site in gear 3, prominent substrate portion 543 and photographic device shell 20 are oriented around the inside rear-view mirror in compartment 4 The base portion of (in this case including electron mirror).

Control circuit 55 includes multiple circuit elements comprising microcomputer 550, and is installed on control panel 54.Control Circuit 55 processed is connected to the imaging circuit 512 of corresponding Imager cells 51 via corresponding individually flexible board (FPC) 540.? In the example, is formed and multiple made respectively by window 541 by being inserted separately into FPC by window 541 in control panel 54 540.In this way, corresponding FPC 540 is connected to the imaging electricity of the corresponding Imager cells 51 positioned at the upside of control panel 54 Road 512, and corresponding FPC 540 penetrates through window 541 in the vertical direction to be connected to the control of the downside of control panel 54 Circuit 55.

The imaging circuit 512 of control circuit 55 and Imager cells 51 collaboratively controls each of Imager cells 51 In image pick-up device 511 imaging operation.Imaging operation includes the exposure status during being imaged.In addition, control circuit 55 Collaboratively come to export to from the image pick-up device 511 of each Imager cells 51 with the imaging circuit 512 of Imager cells 51 Signal or data execute image procossing.Imaging control function and image processing function make it possible to generate as by each saturating The external image of the imaging results of mirror unit 30, with the corresponding visual angle that is reflected in view angle theta w, θ n and the θ t of lens unit 30 External environment 5 in range.At this point, generating external image to identify pair in view angle theta w, θ n and the θ t reflected in external image As, such as barrier or structure.By the configuration, generated by corresponding Imager cells 51 through the outer of each lens unit 30 Portion's image.Incidentally, imaging at least one of control function and image processing function can only by control circuit 55 or Only provided by the imaging circuit 512 of each Imager cells 51.

Control circuit 55 further includes the image identification function of the object reflected in external image for identification.In image recognition In function, control circuit 55 distinguishes the type of object, such as whether barrier is pedestrian, bicycle, other vehicles etc. or knot Whether structure is traffic signals, traffic sign, building etc..It is raw by each lens unit 30 as shown in Fig. 6 (a) to Fig. 6 (c) At external image in the position coordinates of pixel of reflection same position Pw, Pn and Pt be respectively relative to optical axis Aw, An and At It deviates.By image identification function, control circuit 55 is by executing such as registration process come correcting offset.At this point, specific Ground, control circuit 55 is in the position coordinates for identifying such as vanishing point etc. at least one of vertical direction or transverse direction side Upwards relative to the offset of corresponding optical axis Aw, An and At in the case where correcting offset.Vanishing point is same position Pw, Pn and Pt.

(detailed construction of lens unit)

Next, the detailed construction that each lens unit 30 will be described.

As shown in Fig. 2, Fig. 3 and Fig. 5, the wide-angle unit 30w as a lens unit in lens unit 30 includes Wide-angle lens barrel 32w and wide-angle lens 34w.Wide-angle lens barrel 32w is formed hollow shape, and can mould by the opposite of such as resin The rigid material of system is made.Wide-angle lens barrel 32w is fixed to upper case member 21 by screw or adhesive.Wide-angle lens 34w It is formed recessed meniscus lens shape, and is made of the translucent material of such as glass.Wide-angle lens 34w with for correcting example As the rear lens group (not shown) of the optical aberration of color difference is accommodated in together in wide-angle lens barrel 32w.Therefore, wide-angle lens barrel 32w is positioned such that the inner surface 3a of front windshield 3 is spaced apart with wide-angle lens 34w.Wide-angle lens 34w forms wide-angle unit The front end of 30w, and it is located behind with specific interval the front side of lens group.

The optical axis Aw of wide-angle unit 30w shown in Fig. 2, Fig. 4 and Fig. 5 be configured to relative to longitudinal direction obliquely to Down or upwardly extends or extend in the longitudinal direction.As shown in Figure 4, by using wide-angle lens 34w by wide-angle unit 30w's View angle theta w is arranged to for example, about 120 ° of relatively large angle.However, view angle theta w can be configured to the angle greater than 120 °.It is logical It crosses and uses wide-angle lens 34w, the identification depth of field Dw in the view angle theta w of wide-angle unit 30w is by the preset range in external environment 5 It limits.The preset range be located at the near point Dwc of relatively nearside (hereinafter referred to as compared with nearside) watch from the occupant of vehicle 2 and Between the far point Dwf for the deeper side (hereinafter referred to as deeper side) watched from occupant.

As shown in Fig. 2, Fig. 3 and Fig. 5, the narrow angle unit 30n as another lens unit in lens unit 30 includes Narrow angle mirror cylinder 32n and narrow-angle lens 34n.Narrow angle mirror cylinder 32n is formed hollow shape, and can mould by the opposite of such as resin The rigid material of system is made.Narrow angle mirror cylinder 32n is fixed to upper case member 21 by screw or adhesive.Narrow-angle lens 34n It is formed recessed meniscus lens shape, and is made of the translucent material of such as glass.Narrow-angle lens 34n with for correcting example As the rear lens group (not shown) of the optical aberration of color difference is accommodated in together in narrow angle mirror cylinder 32n.Therefore, narrow angle mirror cylinder 32n is positioned such that narrow-angle lens 34n is located at right above wide-angle lens 34w, and substantially without vertical misalignment and lateral shift. Narrow-angle lens 34n forms the front end of narrow angle unit 30n in the front side of rear lens group.In the configuration, front windshield 3 is in deeper side Closer to front side, front windshield 3 rolls tiltedly more downward.Wide-angle unit 30w is not substantially from the narrow deeper pleurapophysis of angle unit 30n court in top Out.

The optical axis An of narrow angle unit 30n shown in Fig. 2, Fig. 4 and Fig. 5 be configured to relative to longitudinal direction obliquely to Down or upwardly extends or extend in the longitudinal direction.In addition, particularly, on substantially vertical, the optical axis of narrow angle unit 30n The optical axis Aw of An from wide-angle unit 30w are eccentric.In this way, optical axis An is aligned with optical axis Aw in the lateral position of vehicle 2.Such as Shown in Fig. 4, by using narrow-angle lens 34n, the view angle theta n of narrow angle unit 30n is configured to the view angle theta than wide-angle unit 30w W narrow moderate angles.Moderate angles are for example, about 60 °.It is arranged by these, narrow angle unit 30n and wide-angle unit 30w's is corresponding View angle theta n and θ w overlap each other.By using narrow-angle lens 34n, identification depth of field Dn in the view angle theta n of narrow angle unit 30n by Preset range in external environment 5 limits.Between the far point Dnf that the preset range is surveyed in the near point Dnc compared with nearside and more deeply.

More particularly, in the present embodiment, it is single beyond narrow angle to be arranged on deeper side by the far point Dwf of wide-angle unit 30w The near point Dnc of first 30n.In addition, in the present embodiment, the near point Dnc of narrow angle unit 30n is arranged on deeper side beyond wide-angle Spend the near point Dwc of unit 30w.In addition, in the present embodiment, the far point Dnf of narrow angle unit 30n is arranged on deeper side and exceeds The far point Dwf of extensive angle unit 30w.It is arranged by these, the far point Dwf of wide-angle unit 30w is located at the near point of narrow angle unit 30n Between Dnc and far point Dnf, so that unit 30n and 30w form the region Rnw that wherein identification depth of field Dn and Dw overlaps each other.

As shown in Fig. 2, Fig. 3 and Fig. 5, the unit 30t that looks in the distance as the another lens unit in lens unit 30 includes Telescope tube 32t and telephoto lens 34t.Telescope tube 32t is formed hollow shape, and can mould by the opposite of such as resin The rigid material of system is made.Telescope tube 32t is fixed to upper case member 21 by screw or adhesive.Telephoto lens 34n It is formed concave lens shape, and is made of the translucent material of such as glass.Telephoto lens 34t with for correct such as color difference The rear lens group (not shown) of optical aberration be accommodated in telescope tube 32t together.Therefore, telescope tube 32t is determined Position is at making telephoto lens 34t be located at the surface narrow-angle lens 34n, and substantially without vertical misalignment and lateral shift.It looks in the distance Mirror 34t forms the front end for the unit 30t that looks in the distance in the front side of rear lens group.By the configuration, narrow angle unit 30n substantially not from The top unit 30t that looks in the distance is prominent towards deeper side.In addition, wide-angle unit 30w does not substantially look in the distance unit 30t towards deeper side from top It is prominent.

As shown in Fig. 2, Fig. 4 and Fig. 5, the optical axis At for the unit 30t that looks in the distance is configured to relative to longitudinal direction obliquely Extend downward or upward or extends in the longitudinal direction.In addition, on substantially vertical, the optical axis At of the unit 30t that looks in the distance from The corresponding optical axis Aw and An of wide-angle unit 30w and narrow angle unit 30n are both eccentric.In this way, optical axis At and optical axis Aw It is aligned with both An in the lateral position of vehicle 2.As shown in Figure 4, by using telephoto lens 34t, the view for the unit 30t that looks in the distance Angle θ t is configured to narrower low-angles both than the corresponding view angle theta w and θ n of wide-angle unit 30w and narrow angle unit 30n.Visual angle θ t is e.g., about 35 °.It is arranged by these, the corresponding view angle theta t and θ n for the unit 30t and narrow angle unit 30n that looks in the distance are handed over each other It is folded.In addition, the corresponding view angle theta t and θ w of the unit 30t and wide-angle unit 30w that looks in the distance also overlap each other.By using telephoto lens Identification depth of field Dt in 34t, the view angle theta t for the unit 30t that looks in the distance is limited by the preset range in external environment 5.The preset range Between the far point Dtf surveyed in the near point Dtc compared with nearside and more deeply.

More specifically, in the present embodiment, the far point Dnf of narrow angle unit 30t is arranged on deeper side beyond list of looking in the distance The near point Dtc of first 30t.In addition, in the present embodiment, the near point Dtc for the unit 30t that looks in the distance is arranged on deeper side beyond narrow angle The near point Dwc and far point Dwf of the near point Dnc and wide-angle unit 30w of unit 30n.In addition, in the present embodiment, list of looking in the distance The far point Dtf of first 30t is arranged on the far point Dwf of far point Dnf and wide-angle unit 30w of the deeper side beyond narrow angle unit 30n.It is logical These settings are crossed, the far point Dnf of narrow angle unit 30n is located between the near point Dtc and far point Dtf for the unit 30n that looks in the distance, so that unit 30t and 30n forms the region Rtn that wherein identification depth of field Dt and Dn overlaps each other.However, in the present embodiment, wide-angle list The far point Dwf of first 30w is deviated from the near point Dtc and far point Dtf of the unit 30t that looks in the distance, so that the identification of these units 30t and 30w Depth of field Dt and Dw are offset from one another not overlap each other.

In the above-described first embodiment, Top of Mind group refers to that group is assumed to be when watching along the vertical direction to the 4th What each lens unit 30 at least partly overlapped each other refers to group.More specifically, Top of Mind group is included in along the vertical direction The wide-angle unit 30w and narrow angle unit 30n to overlap each other when viewing.Second refers to when group is included in viewing along the vertical direction each other Overlapping wide-angle unit 30w and the unit 30t that looks in the distance.Third refers to that group includes the narrow angle to overlap each other when watching along the vertical direction The unit 30n and unit 30t that looks in the distance.4th refers to that group includes the wide-angle unit 30w, narrow to overlap each other when watching along the vertical direction The angle unit 30n and unit 30t that looks in the distance.

Meet as each unit 30w, 30n and the 30t for belonging to the lens unit 30 that Top of Mind group refers to group to the 4th Following formula 1, wherein each far point Dwf, Dnf and Dtf are as corresponding far point.In this way, by via unit 30w, 30n External environment is imaged respectively with 30t and the extreme position of image recognition realized respectively by corresponding far point Dwf, Dnf and Dtf is limited.

Lf=EFLSf/Wf... (formula 1)

In this example, Lf in formula 1 indicate from unit 30w, 30n and 30t each to corresponding far point Dwf, Dnf and The distance of a corresponding far point in Dtf.EFL in formula 1 indicates the focal length in each of unit 30w, 30n and 30t (in detail Carefully, the combined focal between each in lens 30w, 30n and 30t and its subsequent lens group).Sf in formula 1 indicates unit Needed for each of corresponding far point Dwf, Dnf and Dtf of a corresponding unit in 30w, 30n and 30t image recognition at place The smallest object size wanted.Smallest object size Sf be for each type of object in the horizontal direction with it is every in vertical direction One minimum dimension value just set up.Smallest object size Sf is for example to be carried out required for vehicle control using external circuit Corresponding far point Dwf, Dnf or Dtf at minimum dimension value.Minimum dimension value presupposes.Wf in formula 1 indicates to use The image pick-up device 511 of the Imager cells 51 of a corresponding unit in unit 30w, 30n and 30t in imaging system 50 Carry out minimum pixel widths required for image recognition.Minimum pixel widths Wf is such as image pick-up device 511 vertical The pixel wide of common multiple pixels on direction and transverse direction.Minimum pixel widths Wf is configured to fill by image pickup Set the pixel wide for multiple pixels that image recognition in the pattern match of the external image of 511 generations minimally needs.

On the other hand, as each unit 30w, 30n for belonging to the lens unit 30 that Top of Mind group refers to group to the 4th Meet following formula 2 with 30t, wherein each near point Dwc, Dnc and Dtc are as corresponding near point.In this way, by each The imaging extreme position that image is focused when unit 30w, 30n and 30t are respectively imaged external environment is by corresponding near point Dwc, Dnc and Dtc are limited.

Lc=EFL²·Pc/(FNO·D_c) ... (formula 2)

In this example, the Lc in formula 2 indicates from unit 30w, 30n and 30t each to corresponding near point Dwf, Dnf The distance of a corresponding near point in Dtf.As in the case where formula 1, EFL in formula 2 indicate unit 30w, 30n and The focal length of each in 30t.Pc in formula 2 indicates the corresponding with a unit in unit 30w, 30n and 30t of imaging system 50 Imager cells 51 image pick-up device 511 in multiple pixels pel spacing.Pel spacing Pc is configured to for example The array pitch of the respective pixel common on vertical direction and transverse direction of image pick-up device 511.FNO table in formula 2 Show the F number of each of unit 30w, 30n and 30t.F number is also referred to as F value.In detail, F number is lens 34w, 34n, 34t Each of combination F number with its subsequent lens group.Dc in formula indicate in imaging system 50 with unit 30w, 30n and The diameter of figure of confusion in the image pick-up device 511 of the corresponding Imager cells 51 of a unit in 30t.

(operating effect)

The operating effect of above-mentioned first embodiment is described below.

According to first embodiment, Top of Mind group refers to that the lens unit 30 of group is configured so that view angle theta to the 4th W, at least two visual angles in θ n and θ t overlap each other.View angle theta w, θ n and θ t are different from each other and surround optical axis Aw, An and At. Optical axis Aw, An and At are offset from one another.Group is referred to according to above-mentioned Top of Mind group to the 4th, in arragement construction, along vehicle 2 It is constituted when being watched on vertical direction and refers to that the lens unit 30 of group overlaps each other.It is referred in group in Top of Mind group to the 4th, light At least two optical axises in axis Aw, An and At are closer to each other in the transverse direction of vehicle 2.According to the configuration, extremely such as Fig. 6 (a) Shown in Fig. 6 (c), refer to that the respective lens unit 30 of group generates external image to the 4th by belonging to Top of Mind group respectively.? In external image, reflect the position coordinates relative to each optical axis Ax, An and At of the pixel of same section Pw, Pn and Pt less The offset being likely to occur in big transverse direction.Therefore, which makes it possible to referring to group by Top of Mind group to the 4th Respective lens unit 30 in the imaging of external environment improve transverse direction on picture position precision.Herein, especially Consider second to refer to group, can be by visual angle θ t look in the distance unit 30t and wide-angle unit 30w that visual angle is θ w obtains above-mentioned height Picture position precision.The unit 30t that looks in the distance has the view angle theta t narrower than view angle theta w.The unit 30t that looks in the distance is to be different from narrow angle unit 30n Another narrow angle unit.

In addition, Top of Mind group according to first embodiment refers to group to the 4th, belong to the lens unit 30 for referring to group Optical axis Aw, An and At at least two optical axises it is particularly eccentric in the vertical direction.According to the configuration, by constituting the One refer to group to the 4th refer to group respective lens unit 30 generate each external image in, reflect same section Pw, Pn and The far less likely to occur offset of the position coordinates of the pixel of Pt, especially in a lateral direction.Therefore, which ensures to outside Hi-vision position precision in the imaging of environment, wherein having small offset correction amount in a lateral direction.

In addition, the Top of Mind group and third according to first embodiment refer to group, when vertically watching, thoroughly The two in identification depth of field Dw, Dn and Dt of mirror unit 30 overlaps each other to form overlapping region Rnw and Rtn.The configuration is logical It crosses composition Top of Mind group and third refers to that external environment is imaged in the respective lens unit 30 of group, to include crossover region The wide scope inner focusing image of domain Rnw and Rtn and make it possible to improve the picture position precision in transverse direction.

According to first embodiment, group wherein is being referred to as Top of Mind group and the 4th when watching along the vertical direction The cloth that the wide-angle unit 30w with wide viewing angle θ w and the narrow angle unit 30n with narrow viewing angle θ n of lens unit 30 overlap each other In the case where setting structure, optical axis Aw and An is closer to each other in a lateral direction.According to the configuration, passing through wide-angle unit respectively In the external image that 30w and narrow angle unit 30n is generated, reflect that the position coordinates of the pixel of same section Pw and Pn are less likely Now big lateral shift.In the configuration, external image passes through narrow angle unit 30n and wide-angle unit 30w.Wide-angle unit 30w tool There is identification depth of field Dw, in identification depth of field Dw, far point Dwf is arranged near point of the deeper side beyond identification depth of field Dn Dnc, to include the wide scope inner focusing image of the overlapping region of these identification depth of field.In this way, the configuration so that The picture position precision in transverse direction can be improved in the imaging to external environment.

According to first embodiment, when watching along the vertical direction, the wide-angle for the lens unit 30 for referring to group as the 4th Unit 30w, narrow angle unit 30n and the unit 30t that looks in the distance overlap each other, and the view angle theta t for the unit 30t that looks in the distance is than wide-angle unit and narrow angle The narrow viewing angle of unit.By the arragement construction, optical axis Aw, An and At are closer to each other in a lateral direction.According to the configuration, respectively External image is generated by wide-angle unit 30w, narrow angle unit 30n and the unit 30t that looks in the distance.In the external image of generation, reflection The far less likely to occur big lateral shift of the position coordinates of the pixel of same section Pw, Pn and Pt.The configuration is so that external image Pass through the above-mentioned unit 30t that looks in the distance, the narrow angle unit 30n with identification depth of field Dn and the wide-angle list with identification depth of field Dw First 30w, in the wide scope of overlapping region Rtn and Rnw including the corresponding two identification depth of field in these identification depth of field Inner focusing image.In identification depth of field Dn, far point Dnf is arranged near point Dtc of the deeper side beyond identification depth of field Dt.With This mode, the configuration make it possible to improve the picture position precision in transverse direction in the imaging to external environment.

According to first embodiment, in the lens unit 30 for constituting the Top of Mind group that wherein view angle theta n and θ w overlap each other Identification depth of field Dn and Dw in, in external environment 5, another far point Dwf is arranged on a near point Dnc and a far point Between Dnf.In this way, which forms the region Rnw that identification depth of field Dn and Dw overlap each other.In Top of Mind group One far point Dnf and another far point Dwf is limited by be imaged in fact to external environment by each lens unit 30 respectively The extreme position of existing image recognition.Depth of field is identified in Top of Mind group in each lens unit 30 according to the configuration Dn and Dw overlap each other.In any external image in the external image generated by each lens unit 30, it can pass through Image recognition distinguishes the object relatively moved in overlapping region Rnw.External image is by each of Top of Mind group The result that external environment is imaged in mirror unit 30.The configuration makes it possible to limit the object in external image and is accordingly identifying It is lost in the region Rnw that depth of field Dn and Dw overlap each other.

In addition, according to first embodiment, another far point Dnf, which is arranged on, constitutes what wherein view angle theta t and θ n overlapped each other Third refers in identification the depth of field Dt and Dn of the lens unit 30 of group.In external environment 5, far point Dnf is set one closely Between point Dtc and a far point Dtf, to form the region Rtn that identification depth of field Dt and Dn overlap each other.Third refers in group A far point Dtf and another far point Dnf limit by the way that external environment is imaged by each lens unit 30 respectively The extreme position of the image recognition of realization.According to the configuration, is referred in third and identify that depth of field Dt and Dn overlap each other in group.Tool There is the configuration of image recognition to enable differentiation between any external image in the external image generated by each lens unit 30 In the object relatively moved in overlapping region Rtn.Therefore, which makes it possible to limit the object in external image in phase It should identify and be lost in region Rtn that depth of field Dt and Dn overlap each other.External image is each lens that group is referred to by third The result that external environment is imaged in unit 30.

In addition, according to first embodiment, constitute Top of Mind group and third to refer to that the lens unit 30 of group meets above-mentioned Formula 1, wherein each far point Dwf, Dnf and Dtf are as corresponding far point.According to the configuration, Top of Mind group and third are referred in group Each far point Dwf, Dnf and Dtf can be accurately defined the extreme position of image recognition.Externally by each lens unit 30 Portion's environment is imaged to realize image recognition.Therefore, in overlapping region Rnw and Rtn, it can be ensured that due to image recognition Object caused by failure loses the reliability of the effect limited.

In addition, according to first embodiment, belong to Top of Mind group and third to refer to that the lens unit 30 of group meets above-mentioned Formula 2, wherein each near point Dwc, Dnc and Dtc are as corresponding near point.According to the configuration, so that Top of Mind group and third refer to Each near point Dwc, Dnc and Dtc in group can be accurately defined by carrying out via each lens unit 30 to external environment The imaging extreme position for being imaged and being focused image.Therefore, in overlapping region Rnw and Rtn, it can be ensured that due to imaging Object caused by failure loses the reliability of the effect limited.

(second embodiment)

As shown in Figure 7, second embodiment is the modification of first embodiment.In this second embodiment, as Wide-angle unit 2030w, the narrow angle unit 2030n of lens unit 2030 and the arrangement relation for the unit 2030t that looks in the distance are implemented with first Arrangement relation in mode is different.

The narrow-angle lens 34n for forming the front end of narrow angle unit 2030n is located at the upside of wide-angle lens 34w, and does not have substantially Lateral shift, wide-angle lens 34w form the front end of wide-angle unit 2030w.The rear side of narrow-angle lens 34n towards wide-angle lens 34w are inclined It moves.In this example, particularly, on substantially vertical, the optical axis An of narrow angle unit 2030n is from wide-angle unit 2030w's Optical axis Aw is eccentric.The configuration is directed at those positions in the transverse direction of vehicle 2 with optical axis Aw.In the configuration, front windshield 3 Closer to front side, front windshield 3 rolls tiltedly more downward in deeper side.Wide-angle unit 2030w exceeds the narrow angle in top towards deeper side is prominent Unit 2030n.

The telephoto lens 34t for forming the front end for the unit 2030t that looks in the distance is located at the upside of narrow-angle lens 34n, and does not have substantially Lateral shift.The rear side of telephoto lens 34t towards narrow-angle lens 34n deviate.In this example, it on substantially vertical, looks in the distance The optical axis At of unit 2030t is eccentric from both corresponding optical axis Aw and An of wide-angle unit 2030w and narrow angle unit 2030n.This is matched Setting is directed at both those positions and optical axis Aw and An in the transverse direction of vehicle 2.In the configuration, narrow angle unit 2030n It looks in the distance unit 2030t towards deeper side is prominent beyond top with wide-angle unit 2030w.

In this second embodiment, the vertical wall part 2210 of upper case member 21 in photographic device shell 20 step by step It is prominent.According to the arrangement relation that unit 2030w, 2030n and 2030t are deviated in a longitudinal direction, vertical wall part 2210 is more connect Nearly downside, vertical wall part 2210 are biglyyer gradually prominent towards deeper side in front side degree.Unit 2030w, 2030n and 2030t Each of be respectively provided with microlens window 211, microlens window 211 penetrates vertical wall part 2210 and will be corresponding in unit Unit is exposed to the outside of photographic device shell 20.

In the above-described 2nd embodiment, Top of Mind group refers to that group is assumed to be when watching along the vertical direction to the 4th What each lens unit 2030 at least partly overlapped each other refers to group.More specifically, Top of Mind group is included in along vertical side To the wide-angle unit 2030w and narrow angle unit 2030n to overlap each other when viewing.Second refers to that group is included in watches along the vertical direction When the wide-angle unit 2030w that the overlaps each other and unit 2030t that looks in the distance.Third refers to when group is included in viewing along the vertical direction each other Overlapping narrow angle unit 2030n and the unit 2030t that looks in the distance.4th refers to that group includes overlapping each other when watching along the vertical direction Wide-angle unit 2030w, narrow angle unit 2030n and the unit 2030t that looks in the distance.

According to referring to group, wide-angle unit 2030w according to the Top of Mind group of second embodiment and the 4th as described above Closer to downside, it is prominent that wide-angle unit 2030w gets over the deeper side from the narrow angle unit 2030n in top towards inclined front windshield 3.According to The configuration makes the headroom (clearance) of each of wide-angle unit 2030w and narrow angle unit 2030n between front windshield 3 It is narrow as much as possible, so that two units reduce through headroom to the excessive light incidence in view angle theta w and θ n.In addition, wide-angle unit 2030w exceeds narrow angle unit 2030n towards deeper side is prominent.The configuration makes it possible to limit narrow angle unit 2030n and enters wide-angle list The wide viewing angle θ w of first 2030w.According to above-mentioned viewpoint, which makes it possible to through wide-angle unit 2030w and narrow angle unit 2030n The picture position precision in transverse direction is improved in the imaging to external environment, without by due to excessive light and the two lists It is limited caused by the mutual interference of member.

Referring to that group and the 4th refers in group that front windshield 3 is closer to downside, front windshield according to the second of second embodiment 3 more roll tiltedly towards relatively deep.Wide-angle unit 2030w from top look in the distance unit 2030t towards front windshield 3 deeper side it is prominent.According to this Configuration, the headroom for making wide-angle unit 2030w and looking in the distance between each of unit 2030t and front windshield 3 is narrow as much as possible, with So that two units reduce through headroom to the excessive light incidence in view angle theta w and θ t.In addition, the deeper side of wide-angle unit 2030w court It is prominent to exceed the unit 2030t that looks in the distance.Therefore, the configuration makes it possible to limit the unit 2030t that looks in the distance and enters wide-angle unit 2030w's Wide viewing angle θ w.According to above-mentioned viewpoint, which makes it possible to through wide-angle unit 2030w and looks in the distance unit 2030t to outside In the imaging of environment improve transverse direction on picture position precision, without by due to excessive light and the two units it is mutual It is limited caused by interference.Particularly, special consideration should be given to second to refer to group, can be θ w's by look in the distance unit 2030t and visual angle Wide-angle unit 2030w obtains the imaging of said external environment, wherein the view angle theta t for the unit 2030t that looks in the distance is narrower than view angle theta w.It looks in the distance list First 2030t is another narrow angle unit different from narrow angle unit 2030n.

Refer to that group and the 4th refers to group according to the third according to second embodiment, narrow angle unit 2030n looks in the distance from top Unit 2030t is prominent towards the deeper side of front windshield 3.Front windshield 3 closer to downside, get over towards relatively deep and roll tiltedly by front windshield 3.According to this Configuration, keeps narrow angle unit 2030n and the headroom looked in the distance between each of unit 2030t and front windshield 3 narrow as much as possible, with So that two units reduce through headroom to the excessive light incidence in view angle theta n and θ t.In addition, the deeper side of narrow angle unit 2030n court It is prominent to exceed the unit 2030t that looks in the distance.Therefore, which, which makes it possible to limit, looks in the distance unit 2030t into narrow angle unit 2030n's View angle theta n.According to above-mentioned viewpoint, which makes it possible to through narrow angle unit 2030n and looks in the distance unit 2030t to external rings The picture position precision in transverse direction is improved in the imaging in border, without by due to excessive light and two mutual interference of unit Caused by limit.Particularly, referred in group the 4th, can not only limit the unit 2030t that looks in the distance enter in wide viewing angle θ w and And it also limits the unit 2030t that looks in the distance and enters in view angle theta n；View angle theta n is narrower than view angle theta w, but than the view angle theta t for the unit 2030t that looks in the distance It is wide.Therefore, which makes it possible to generate external environment imaging by all units.

Incidentally, the wide-angle unit 2030w, narrow angle unit 2030n of second embodiment and the unit 2030t and that looks in the distance Wide-angle unit 30w, narrow angle unit 30n in one embodiment and the corresponding units in the unit 30t that looks in the distance are essentially identical, in addition to upper It states except configuration.More particularly, the second implementation of the lengthwise position offset or even in each unit 2030w, 2030n and 2030t In mode, identification depth of field Dw, Dn and Dt are also arranged in mode identical with the mode in first embodiment.It is seen according to above Point refers to that group can generate the Top of Mind group with first embodiment to the 4th according to the Top of Mind group of second embodiment The identical operating effect of operating effect in group is referred to the 4th.

(third embodiment)

As shown in Fig. 8 to Figure 10, third embodiment is the modification of first embodiment.In third embodiment In, the arrangement relation and the as the wide-angle unit 3030w of lens unit 3030, narrow angle unit 3030n and the unit 3030t that looks in the distance Arrangement relation in one embodiment is different.

As shown in Fig. 8 and Figure 10, the narrow-angle lens 34n for forming the front end of narrow angle unit 3030n is located at wide-angle lens 34w Upside, and substantially without vertical misalignment, wide-angle lens 34w forms the front end of wide-angle unit 3030w.Narrow-angle lens 34n is from wide Minus lens 34w is deviated towards side (i.e. left side in Figure 10) in transverse direction.In this example, the optical axis of narrow angle unit 3030n Optical axis Aw of the An on both vertical direction and transverse direction from wide-angle unit 3030w is eccentric.Pass through the configuration, wide-angle unit 2030w is not substantially prominent from the narrow angle unit 2030n in top towards deeper side；Front windshield 3 is closer to downside, and front windshield 3 is in deeper side It is more facing forward to roll tiltedly.

As shown in figs. 9 and 10, the telephoto lens 34t for forming the front end for the unit 3030t that looks in the distance is located at wide-angle lens 34w Upside, and substantially without vertical misalignment.However, telephoto lens 34t from wide-angle lens 34w in transverse direction towards the other side (that is, Right side in Figure 10 opposite with narrow angle unit 3030n) offset.In this example, look in the distance unit 3030t optical axis At vertical Optical axis Aw on both direction and transverse direction from wide-angle unit 3030w is eccentric.In addition, particularly, in substantially transverse direction On, the optical axis An of optical axis At from the narrow angle unit 3030n of the unit 3030t that looks in the distance are eccentric.In this way, which makes optical axis At It is aligned with optical axis An in the vertical position of vehicle 2.In the configuration, wide-angle unit 3030w does not look in the distance unit substantially from top The 3030t and narrow angle unit 3030n of side is prominent towards deeper side.

In the above-described 3rd embodiment, Top of Mind group and second refers to that group is assumed to be and is wherein seeing along the vertical direction What each lens unit 3030 at least partly overlapped each other when seeing refers to group.Third refers to that group is assumed to be in transverse direction What lens unit 3030 overlapped each other when viewing refers to group.More specifically, Top of Mind group is included in when watching along the vertical direction The wide-angle unit 3030w and narrow angle unit 3030n to overlap each other.Second refers to group to be included in when watching along the vertical direction hands over each other Folded wide-angle unit 3030w and the unit 3030t that looks in the distance.Third refer to group include in transverse direction watch when overlap each other it is narrow The angle unit 2030n and unit 3030t that looks in the distance.

It is referred in group according to the Top of Mind group of third embodiment and second, optical axis Aw, An of lens unit 3030 Corresponding two optical axises overlap each other and in upper viewing along the vertical direction in both vertical direction and transverse direction in At It is upper eccentric.The configuration limits reflect in each external image generated by each lens unit 3030 same position Pw, The lateral shift of the position coordinates of the pixel of Pn and Pt.In addition, even if causing physical size due to the limitation to lateral shift Increase in the vertical direction, which also allows for ensuring increase of the freedom degree arranged to reduce such as physical size；Respectively A lens unit 3030 constitutes Top of Mind group and second and refers to group.Therefore, which makes it possible to ensure that in transverse direction Hi-vision position precision, while ensuring the visual field of non-designated occupant in the vertical direction in vehicle 2.Particularly, special consideration should be given to Second refers to group, visual angle be θ t look in the distance unit 3030t and wide-angle unit 3030w that visual angle is θ w makes it possible to ensure that the visual field simultaneously Ensure above-mentioned precision, view angle theta t is narrower than view angle theta w；The unit 3030t that looks in the distance is another narrow angle list different from narrow angle unit 3030n Member.

In addition, according to third embodiment, narrow angle unit 3030n belongs to Top of Mind group, and unit 3030t category of looking in the distance Group is referred in second.The narrow angle unit 3030n and unit 3030t that looks in the distance, which belongs to, refers to group different the from Top of Mind group and second Three refer to group.When watching in transverse direction, narrow angle unit 3030n and the unit 3030t that looks in the distance overlap each other.In addition, two units Optical axis An and At it is horizontally eccentric each other.The configuration makes it possible to enhance following effect: ensuring the visual field of occupant, simultaneously to the greatest extent Possibly inhibit the increase of the physical size on the vertical direction as caused by the limitation of lateral shift.

Incidentally, according to the wide-angle unit 3030w of third embodiment, narrow angle unit 3030n and the unit 3030t that looks in the distance It is essentially identical with the corresponding units in the wide-angle unit 30w, narrow angle unit 30n and the unit 30t that looks in the distance of first embodiment, in addition to Except above-mentioned configuration.More particularly, in the third embodiment, narrow angle unit 3030n and unit 3030t is looked in the distance in wide-angle unit The upside of 3030w is aligned side by side.Even in the configuration, identification is arranged in mode identical with the mode in first embodiment Depth of field Dw, Dn and Dt.According to view of the above, refer to that group makes it possible to according to the Top of Mind group of third embodiment and second It generates and refers to the identical operating effect of the operating effect in group with the Top of Mind group of first embodiment and second.

(the 4th embodiment)

As shown in Figure 11, the 4th embodiment is the modification of first embodiment.In the fourth embodiment, lens The setting of the identification depth of field Dw of the wide-angle unit 4030w of unit 30 is different from the setting in first embodiment.

The far point Dwf of wide-angle unit 4030w limits the identification depth of field Dw in wide viewing angle θ w.Far point Dwf be arranged on compared with Deep side, the near point Dtc beyond the unit 30t that looks in the distance.Near point Dtc limits the identification depth of field Dt in the view angle theta t narrower than view angle theta w. In addition, the far point Dwf of wide-angle unit 4030w is arranged on the relatively nearside of the far point Dtf for the unit 30t that looks in the distance.It is arranged by these, The far point Dwf of wide-angle unit 4030w is located between the near point Dtc and far point Dtf for the unit 30t that looks in the distance.In this way, unit 30t and 4030w forms the region Rtw that wherein identification depth of field Dt and Dw overlaps each other.In the above-described 4th embodiment, especially Ground, second refers to that group includes the wide-angle unit to overlap each other as in the first embodiment when watching along the vertical direction The 4030w and unit 30t that looks in the distance.

In addition, refer to group according to second in the 4th embodiment, when watching along the vertical direction, lens unit 30 it is each A identification depth of field Dt and Dw overlap each other, and form overlapping region Rtw.The configuration refers to each of group by belonging to second Lens unit 30 is imaged external environment in the wide scope inner focusing image including overlapping region Rtw.With this side Formula, the configuration make it possible to improve the picture position precision in transverse direction.

According to the 4th embodiment, when watching along the vertical direction, there is the wide-angle unit 4030w of wide viewing angle θ w and have The unit 30t that looks in the distance of narrow viewing angle θ t overlaps each other, and wide-angle unit 4030w and the unit 30t that looks in the distance are the second lens lists for referring to group Member 30.By the arragement construction, optical axis Aw and An is closer to each other in a lateral direction.According to the configuration, passing through wide-angle unit In 4030w and the external image for unit 30t generation of looking in the distance, reflect the position coordinates of the pixel of same section Pw and Pt in lateral side Upward far less likely to occur big offset.In identification depth of field Dw, far point Dwf is arranged on deeper side, beyond identification field depth Spend the near point Dtc of Dt.Therefore, which makes it possible to through the unit 30t and wide-angle unit 4030w that looks in the distance including those identifications External image is focused in the wide scope of the overlapping region Rtw of depth of field.In this way, which makes it possible to external rings The picture position precision in transverse direction is improved in the imaging in border.As described above, in the fourth embodiment, look in the distance unit 30t It is another narrow angle unit different from narrow angle unit 30n.Second refers to that group includes the wide-angle list that unit 30t and visual angle are θ w of looking in the distance The view angle theta t of first 4030w, the unit 30t that looks in the distance are narrower than view angle theta w.Second refers to that group makes it possible to generate the imaging of said external environment.

Incidentally, the basic phase of wide-angle unit 30w of the wide-angle unit 4030w of the 4th embodiment and first embodiment Together, in addition to the configurations discussed above.Therefore, refer to that group makes it possible to generate according to the Top of Mind group of the 4th embodiment to the 4th The identical operating effect of operating effect in group is referred to the 4th with the Top of Mind group of first embodiment.

(the 5th embodiment)

As shown in Figure 12, the 5th embodiment is the modification of the 4th embodiment.In the 5th embodiment, lens The setting of the identification depth of field Dw of the wide-angle unit 5030w of unit 30 is different from the setting in the 4th embodiment.

Wide-angle unit 5030w limits the identification depth of field Dw in wide viewing angle θ w.Narrow angle unit 30n limits narrower than view angle theta w Identification depth of field Dn in view angle theta n.The near point Dwc of wide-angle unit 5030w is arranged on deeper side, beyond narrow angle unit 30n's Near point Dnc.In addition, the far point Dwf of wide-angle unit 5030w is arranged on the relatively nearside of the far point Dnf of narrow angle unit 30n.Pass through These settings, the near point Dwc and far point Dwf of wide-angle unit 5030w are both located at the near point Dnc and far point of narrow angle unit 30n Between Dnf.In this way, unit 30n and 5030w forms the region Rnw that wherein identification depth of field Dn and Dw overlaps each other.? In above-mentioned 5th embodiment, particularly, second refers to that group includes seeing along the vertical direction as in the fourth embodiment The wide-angle unit 5030w to overlap each other when seeing the and unit 30t that looks in the distance.

The wide-angle unit 5030w of 5th embodiment and the wide-angle unit 4030w of the 4th embodiment are essentially identical, in addition to Except above-mentioned configuration.Therefore, refer to that group makes it possible to generation and basis according to the Top of Mind group of the 5th embodiment to the 4th The Top of Mind group of 4th embodiment refers to the identical operating effect of operating effect in group to the 4th.

(sixth embodiment)

As shown in Figure 13 to Figure 18, sixth embodiment is the modification of first embodiment.In sixth embodiment In, the arrangement relation and the as the wide-angle unit 6030w of lens unit 6030, narrow angle unit 6030n and the unit 6030t that looks in the distance Arrangement relation in one embodiment is different.

As shown in Figure 13, Figure 14, Figure 16 and Figure 18, the narrow-angle lens 34n for forming the front end of narrow angle unit 6030n is determined Position is at, substantially without offset of vertical, wide-angle lens 34w forms the front end of wide-angle unit 6030w with wide-angle lens 34w.Narrow-angle lens Side (that is, left side in Figure 18) as external environment 5 side of the 34n on front end and transverse direction is inclined from wide-angle lens 34w It moves.In this example, the optical axis An of narrow angle unit 6030n is in a lateral direction significantly from the optical axis of wide-angle unit 6030w Aw is eccentric.

As shown in Figure 15, Figure 16 and Figure 18, the telephoto lens 34t for forming the front end for the unit 6030t that looks in the distance is oriented With wide-angle lens 34w substantially without offset of vertical.The front end of telephoto lens 34t from 5 side of environment towards the outside wide-angle lens 34w is inclined It moves.Telephoto lens 34t is also deviated from wide-angle lens 34w towards the other side (that is, right side in Figure 18) in transverse direction.Show at this In example, the optical axis At for the unit 6030t that looks in the distance is significantly single from the optical axis Aw of wide-angle unit 6030w and narrow angle in a lateral direction Both optical axis An of first 6030n bias.

In the above-described 6th embodiment, the upper case member 21 of photographic device shell 20 shown in Figure 13 to Figure 16 Vertical wall part 6210 is formed to meet above-mentioned each unit 6030w, 6030n and 6030t and be offset from one another in a longitudinal direction Arrangement relation.Specifically, vertical wall part 6210 is divided in transverse direction closer to its left and right cross side, vertically from the center portion thereof The front side (that is, the deeper side described in the first embodiment) of 5 side of environment more towards the outside of wall part 6210 protrudes obliquely.Needle Microlens window 6211w, 6211n and 6211t are respectively formed to each unit.Microlens window 6211w, 6211n and 6211t penetrate perpendicular Vertical wall section 6210 and the outside that unit 6030w, 6030n and 6030t are exposed to photographic device shell 20 respectively.Show at this In example, the vertical position of microlens window 6211w, 6211n and 6211t corresponding to each unit 6030w, 6030n and 6030t that This alignment.In addition, corresponding respectively to the vertical of the microlens window 6211n and 6211t of narrow angle unit 6030n and the unit 6030t that looks in the distance It is aligned with each other in the state of being deviated from the lengthwise position of the microlens window 6211w corresponding to wide-angle unit 6030w to position.

In the above-described 6th embodiment, Top of Mind group refers to that group is assumed to be to the 4th and is wherein seeing in transverse direction What each lens unit 6030 overlapped each other when seeing refers to group.It is watched in transverse direction more specifically, Top of Mind group is included in When the wide-angle unit 6030w and narrow angle unit 6030n that overlap each other.Second refers to when group is included in viewing in transverse direction each other Overlapping wide-angle unit 6030w and the unit 6030t that looks in the distance.Third refers to that group includes overlapping each other when watching in transverse direction The narrow angle unit 6030n and unit 6030t that looks in the distance.4th refers to that group includes the wide-angle list to overlap each other when watching in transverse direction First 6030w, narrow angle unit 6030n and the unit 6030t that looks in the distance.

Incidentally, above-mentioned wide-angle unit 6030w, narrow angle unit 6030n and unit of looking in the distance according to sixth embodiment 6030t and the basic phase of corresponding units in the wide-angle unit 30w, narrow angle unit 30n and the unit 30t that looks in the distance of first embodiment Together, in addition to the configurations discussed above.More particularly, in addition each unit 6030w, 6030n and 6030t lengthwise position deviate In sixth embodiment, identification depth of field Dw, Dn and Dt are also arranged in mode identical with the mode in first embodiment.

Therefore, according to the Top of Mind group and third of sixth embodiment refer to group make it possible to with first embodiment Top of Mind group and third refer to the identical mode of the mode in group generate in addition to the picture position precision in transverse direction it Outer operating effect.In addition, as operating effect intrinsic in sixth embodiment, Top of Mind group to the 4th refer to group so that It can ensure the picture position precision in transverse direction by the offset of correction position coordinates.Particularly, special consideration should be given to second Refer to group, visual angle be θ t look in the distance unit 6030t and wide-angle unit 6030w that visual angle is θ w makes it possible to ensure that as described above Precision；The unit 6030t that looks in the distance is another narrow angle unit different from narrow angle unit 6030n, and is had narrower than view angle theta w View angle theta t.

As shown in Figure 13 to Figure 17, in sixth embodiment, according to the arrangement relation of each lens unit 6030, one It is different from the structure in first embodiment in each structure to sidewall sections 6043.This is arranged on sidewall sections 6043 Two cross sides of imaging space 410.In cover 6040, imaging space 410 is located at the upside of base wall portion 41.

Optical axis Aw relative to wide-angle unit 6030w is symmetrically arranged each of sidewall sections 6043.Wide-angle unit 6030w is located at the center for the lens unit 6030 being aligned in a lateral direction.As sidewall sections 6043 are from wide-angle unit 6030w periphery towards the outside 5 side of environment front side extend, in each of sidewall sections 6043 of straight plate-like shape relative to The wide viewing angle θ w of the optical axis Aw and unit 6030w of unit 6030w are accordingly tilted towards lateral outer side.In sidewall sections 6043 In each, ladder plane inner wall surface 6043a is formed: in the vertical direction viewing of the vehicle 2 on along the horizontal plane (that is, when seeing to horizontal plane) opens up in the taper line (taper line) of the outer view angle theta w view angle theta w as shown in Figure 17 like that It opens.In this way, when watching along the vertical direction, the corresponding view angle theta n and θ t of narrow angle unit 6030n and the unit 6030t that looks in the distance It is positioned partially in the view angle theta w in imaging space 410, view angle theta n and θ t are narrower than the view angle theta w of wide-angle unit 6030w.

As shown in Figure 13, Figure 16 and Figure 17, microlens window of the wide-angle window of exposure 6431w in vertical wall part 6210 The front side of 6211w is open between the rear end of sidewall sections 6043.The front end in 5 side of external environment of wide-angle unit 6030w from The inside of microlens window 6211w enters the inside of wide-angle window of exposure 6431w.The front end of wide-angle unit 6030w is still being imaged Except space 410.In this way, wide-angle window of exposure 6431w makes wide-angle unit 6030w towards the exposure of imaging space 410.

As shown in Figure 13 to Figure 17, narrow angle window of exposure 6431n in the first side wall part 6432, in vertical wall part The front openings of 6210 microlens window 6211n.The first side wall part 6432 is one of sidewall sections 6043 in a lateral direction A part on side.The vertical position of narrow angle window of exposure 6431n is aligned with wide-angle window of exposure 6431w.Narrow angle unit 6030n The front end in 5 side of external environment from the inside of microlens window 6211n enter narrow angle window of exposure 6431n inside.Narrow angle is single The front end of first 6030n is still except imaging space 410.In this way, narrow angle window of exposure 6431n makes narrow angle unit 6030n is exposed towards imaging space 410.

As shown in Figure 15 to Figure 17, look in the distance window of exposure 6431t in second sidewall part 6433, in vertical wall part The front openings of 6210 microlens window 6211t.Second sidewall part 6433 is in a lateral direction another of sidewall sections 6043 A part of side.Look in the distance window of exposure 6431t vertical position and wide-angle window of exposure 6431w and narrow angle window of exposure 6431n alignment.In addition, looking in the distance window of exposure 6431t's in the state that lengthwise position is deviated from wide-angle window of exposure 6431w Lengthwise position is aligned with narrow angle window of exposure 6431n.In this example, it looks in the distance the front end in 5 side of external environment of unit 6030t Enter the inside for the window of exposure 6431t that looks in the distance from the inside of microlens window 6211t.Look in the distance unit 6030t front end still at Except image space 410.In this way, the window of exposure 6431t that the looks in the distance unit 6030t that makes to look in the distance exists in wide-angle unit 6030w The front side of 5 side of external environment and directly beside narrow angle unit 6030n towards imaging space 410 exposure.

It is essentially identical according to the cover 6040 of sixth embodiment and the cover 40 of first embodiment, in addition to above-mentioned configuration it Outside.Therefore, according to the cover of sixth embodiment 6040, for guiding the optical imagery within the scope of imageable target to lens list The cross side of the imaging space 410 of the unit 6030w and 6030n of member 6030, the first side wall part 6432 is according to wide-angle unit From the periphery of wide-angle unit 6030w, ambient side tilts the view angle theta w of 6030w towards the outside.The first side wall part 6432 is a pair of sidewalls One of part 6043.Unit 6030w and 6030n belong to Top of Mind group and the 4th and refer to group.More specifically, real the 6th It applies in the cover 6040 in mode, the first side wall part 6432 is oriented the view angle theta w with heeling condition along wide-angle unit 6030w Expansion.In this example, in the first side wall part 6432, external rings of the narrow angle window of exposure 6431n in wide-angle unit 6030w Border side opening is so that narrow angle unit 6030n is exposed towards imaging space 410.According to the configuration, the view angle theta n of narrow angle unit 6030n is fallen In the inside of the view angle theta w of the wide-angle unit 6030w for the gradient for adjusting the first side wall part 6432, in the two units Between share imaging space 410.Therefore, wherein the first side wall part that narrow angle window of exposure 6431n is open with heeling condition 6432 formation range is limited to range required for wide-angle unit 6030w.In this way, which makes it possible to reduce The size of camera module 1 including cover 6040.

Referred in group according to the Top of Mind group of sixth embodiment and the 4th, narrow angle unit 6030n in external rings The front end of 5 side of border is located at except imaging space 410.Therefore, narrow angle unit 6030n is unlikely to enter wide-angle unit 6030w's In view angle theta w.In this way, narrow angle unit 6030n is less likely to interfere and be less likely in interference imaging target zone The imaging of the normal optical image of external environment 5.Particularly, in Top of Mind group, narrow angle unit 6030n is less likely interference And being less likely interference can be imaged to avoid the external environment of lost objects.

According to sixth embodiment, Top of Mind group, third refer to group and the 4th refer to group narrow angle unit 6030n before End enters the inside of narrow angle window of exposure 6431n.The front end of narrow angle unit 6030n is still except imaging space 410.According to this Configuration can be such that narrow angle unit 6030n passes through closer to front windshield 3 with the excessive light of limitation net between element 6030n and element 3 Sky is incident in view angle theta n.Therefore, excessive light incidence is less likely the normal of external environment 5 of the interference within the scope of imageable target The imaging of optical imagery.Particularly, in Top of Mind group, excessive light incidence is less likely interference can be to avoid lost objects External environment imaging.

In addition, according to the cover 6040 of sixth embodiment, for by the optical imagery within the scope of imageable target guide to The cross side of the imaging space 410 of the corresponding units 6030w and 6030t of lens unit 6030,6433 basis of second sidewall part From the periphery of wide-angle unit 6030w, ambient side tilts the view angle theta w of wide-angle unit 6030w towards the outside.Corresponding units 6030w and 6030t belongs to second and refers to that group and the 4th refers to group.Second sidewall part 6433 is one of a pair of sidewalls part 6043.More Specifically, in the cover 6040 in sixth embodiment, second sidewall part 6433 is oriented with heeling condition along wide-angle list The view angle theta w of first 6030w is unfolded.In this example, in second sidewall part 6433, the window of exposure 6431t that looks in the distance is in wide-angle list The external environment side opening of first 6030w is so that the unit 6030t that looks in the distance is exposed towards imaging space 410.According to the configuration, unit of looking in the distance The view angle theta t of 6030t is fallen in the inside for the view angle theta w of the wide-angle unit 6030w of gradient for adjusting second sidewall part 6433, To share imaging space 410 between the two units.Therefore, it is open for making to look in the distance window of exposure 6431t with heeling condition The formation range of second sidewall part 6433 be limited to range required for wide-angle unit 6030w.In this way, this is matched Set the size for making it possible to reduce the camera module 1 including cover 6040.

Referring to group according to the second of sixth embodiment and the 4th referring in group, the unit 6030t that looks in the distance in external rings The front end of 5 side of border is located at except imaging space 410.Therefore, the unit 6030t that looks in the distance is unlikely to enter wide-angle unit 6030w's Inside view angle theta w.In this way, the unit 6030t that looks in the distance is less likely to interfere and be less likely in interference imaging target zone External environment 5 normal optical image imaging.

According to sixth embodiment, second, which refers to that the front end for the unit 6030t that looks in the distance that group refers to group to the 4th enters, looks in the distance The inside of window of exposure 6431t.Look in the distance unit 6030t front end still except imaging space 410.It, can be with according to the configuration The unit 6030t that makes to look in the distance is incident on limiting excessive light by the headroom between element 6030t and element 3 closer to front windshield 3 In view angle theta t.Therefore, excessive light incidence is less likely the normal optical image of external environment 5 of the interference within the scope of imageable target Imaging.

Particularly, special consideration should be given to second to refer to group, and by looking in the distance as described above, window of exposure 6431t can be in view angle theta t The reduction of size and the imaging of normal optical image are obtained in the unit 6030t that looks in the distance narrower than view angle theta w.The unit 6030t that looks in the distance is Different from another narrow angle unit of narrow angle unit 6030n.The window of exposure 6431t that looks in the distance is to be different from narrow angle window of exposure 6431n Another narrow angle window of exposure.

(the 7th embodiment)

As shown in Figure 19 to Figure 21, the 7th embodiment is the modification of first embodiment.In the 7th embodiment In, in the position and sixth embodiment as the narrow angle unit 7030n and the unit 7030t that looks in the distance of lens unit 6030 Position is different.

As shown in Figure 19 and Figure 21, the front end in 5 side of external environment of narrow angle unit 7030n is also from microlens window The inside of 6211n and the inside of narrow angle window of exposure 6431n enter imaging space 410.In this way, narrow angle window of exposure 6431n makes narrow angle unit 7030n be exposed to imaging space 410.In addition, as shown in Figure 21, when watching along the vertical direction, than The view angle theta n of the view angle theta w of wide-angle unit 6030w narrow narrow angle unit 7030n is fully located in the view angle theta w in imaging space 410 Portion.

As shown in Figure 19 and Figure 21, narrow angle unit 7030n is at the part including at least the front end of narrow angle unit 7030n There is reflection restricted part 7036n in its entire neighboring area and in its entire end region.Narrow angle unit 7030n enters It imaging space 410 and is exposed in imaging space 410.Apply for example, by the narrow angle mirror cylinder 32n to narrow angle unit 7030n black Color coating or black colorant form reflection restricted part 7036n.Incidentally, for example, in narrow angle mirror cylinder 32n itself by black material In situation made of expecting, setting reflection restricted part 7036n is not needed.

As shown in figs. 20 and 21, look in the distance unit 7030t the front end in 5 side of external environment also from microlens window The inside of 6211t and the inside for the window of exposure 6431t that looks in the distance enter imaging space 410.In this way, it looks in the distance window of exposure 6431t make to look in the distance unit 7030t in wide-angle unit 6030w in the front side of 5 side of external environment and directly in narrow angle unit Imaging space 400 is exposed to beside 7030n.In addition, as shown in Figure 21, when watching along the vertical direction, than wide-angle unit The view angle theta t of the view angle theta w of the 6030w narrow unit 7030t that looks in the distance is fully located inside the view angle theta w in imaging space 410.

As shown in figs. 20 and 21, the unit 7030t that looks in the distance is being included at least into imaging space 410 and is being exposed into The front end of the unit 7030t that looks in the distance in image space 410 be partially located in its entire neighboring area and its entire end region In have reflection restricted part 7036t.Apply black coating or black for example, by the telescope tube 32t to the unit 7030t that looks in the distance Chromatic colorant forms reflection restricted part 7036t.Incidentally, for example, in the telescope tube 32t feelings made of black material itself Under condition, setting reflection restricted part 7036t is not needed.

In the above-described 7th embodiment, as in sixth embodiment, Top of Mind group to the 4th refers to a group quilt Be assumed to be wherein when watching in transverse direction each lens unit 6030 overlap each other refer to group.More specifically, first mentions And group includes the wide-angle unit 6030w and narrow angle unit 7030n to overlap each other when watching in transverse direction.Second refers to a group packet Include the wide-angle unit 6030w to overlap each other when watching in transverse direction and the unit 7030t that looks in the distance.Third refers to that group is included in edge The narrow angle unit 7030n that transverse direction overlaps each other when the watching and unit 7030t that looks in the distance.4th refers to that group is included in transversely side To wide-angle unit 6030w, narrow angle unit 7030n and the unit 7030t that looks in the distance to overlap each other when viewing.

According to above-mentioned 7th embodiment, Top of Mind group, third refer to that group and the 4th refers to the narrow angle unit 7030n of group Front end enter imaging space 410 from the inside of narrow angle window of exposure 6431n.According to the configuration, make narrow angle unit 7030n with before Headroom between windscreen 3 is narrow as much as possible, and the effect for reducing and passing through excessive light incidence of the headroom into view angle theta n can be enhanced Fruit.Therefore, the normal light of the external environment 5 within the scope of imageable target can be obtained in the case where not interfered by excessive light incidence The imaging for learning image, can be imaged especially in Top of Mind group to avoid the external environment of lost objects.

In addition, Top of Mind group and the 4th refers to that the front end of the narrow angle unit 7030n of group enters according to the 7th embodiment Imaging space 410.At the front end of narrow angle unit 7030n, the reflection of light can be adjusted by reflection restricted part 7036n.It should The reflected light reflected on the front end in imaging space 410 that configuration makes it possible to be limited in narrow angle unit 7030n enters wide-angle In the view angle theta w of unit 6030w.Therefore, it can be obtained within the scope of imageable target in the case where not interfered by reflected light incidence The imaging of the normal optical image of external environment 5, can be to avoid the external environment of lost objects especially in Top of Mind group Imaging.

According to the 7th embodiment, second refers to that the front end for the unit 7030t that looks in the distance that group refers to group to the 4th is sudden and violent from looking in the distance The inside of dew window 6431t enters imaging space 410.According to the configuration, make to look in the distance net between unit 7030t and front windshield 3 It is empty narrow as much as possible, and the effect for reducing and passing through excessive light incidence of the headroom into view angle theta t can be enhanced.Therefore, Ke Yi The imaging of the normal optical image of the external environment 5 within the scope of imageable target is not obtained in the case where by excessive light incidence interference.

In addition, second refers to that group and the 4th refers to that the front end of the unit 7030t that looks in the distance of group enters according to the 7th embodiment Imaging space 410.At the front end for the unit 7030t that looks in the distance, the reflection of light can be adjusted by reflection restricted part 7036t.It should Configuration makes it possible to be limited in the look in the distance light reflected on the front end in imaging space 410 of unit 7030t and enters wide-angle unit In the view angle theta w of 6030w.Therefore, the outside within the scope of imageable target can be obtained in the case where not interfered by reflected light incidence The imaging of the normal optical image of environment 5.

Particularly, special consideration should be given to second to refer to group, can be as above by view angle theta t the look in the distance unit 7030t narrower than view angle theta w Normal optical image is imaged as described.The unit 7030t that looks in the distance is another narrow angle different from narrow angle unit 7030n Unit.

Incidentally, according to the narrow angle unit 7030n of the 7th embodiment and look in the distance unit 7030t and sixth embodiment Narrow angle unit 6030n and the unit 6030t that looks in the distance it is essentially identical, in addition to the configurations discussed above.Therefore, according to the 7th embodiment party Formula, except the related operating effect of the arragement construction other than imaging space 410, Top of Mind group to the 4th refers to that group makes Can generate with the Top of Mind group according to sixth embodiment to the 4th the identical operation of the operating effect referred in group and imitate Fruit.

(the 8th embodiment)

As shown in Figure 22 to Figure 24, the 8th embodiment is the modification of first embodiment.In the 8th embodiment, As the cloth in the position and sixth embodiment of the narrow angle unit 8030n and the unit 8030t that looks in the distance of lens unit 6030 Seated position is different.

As shown in Figure 22 and Figure 24, the front end in 5 side of external environment of narrow angle unit 8030n enters microlens window 6211n.In addition, after the front end of narrow angle unit 8030n is except imaging space 410 and in narrow angle window of exposure 6431n Side.In this way, narrow angle window of exposure 6431n makes narrow angle unit 8030n be exposed to imaging space 410.In addition, as in Figure 24 It is shown, when watching along the vertical direction, the part view angle theta n of the narrow angle unit 8030n narrower than the view angle theta w of wide-angle unit 6030w Ground is located inside the view angle theta w in imaging space 410.

As shown in Figure 23 and Figure 24, the front end in 5 side of external environment for the unit 8030t that looks in the distance enters microlens window 6211t.In addition, after the front end for the unit 8030t that looks in the distance is except imaging space 410 and in the window of exposure 6431t that looks in the distance Side.In this way, the window of exposure 6431t that looks in the distance make to look in the distance unit 8030t in wide-angle unit 6030w in 5 side of external environment Front side and be directly exposed to imaging space 400 beside narrow angle unit 8030n.In addition, as shown in Figure 24, along vertical When direction is watched, the view angle theta t of the look in the distance unit 8030t narrower than the view angle theta w of wide-angle unit 6030w is positioned partially at imaging space Inside view angle theta w in 410.

In the above-described 8th embodiment, as in sixth embodiment, Top of Mind group to the 4th refers to a group quilt Be assumed to be wherein when watching in transverse direction each lens unit 6030 overlap each other refer to group.More specifically, first mentions And group includes the wide-angle unit 6030w and narrow angle unit 8030n to overlap each other when watching in transverse direction.Second refers to a group packet Include the wide-angle unit 6030w to overlap each other when watching in transverse direction and the unit 8030t that looks in the distance.Third refers to that group is included in edge The narrow angle unit 8030n that transverse direction overlaps each other when the watching and unit 8030t that looks in the distance.4th refers to that group is included in transversely side To wide-angle unit 6030w, narrow angle unit 8030n and the unit 8030t that looks in the distance to overlap each other when viewing.

According to the narrow of the narrow angle unit 8030n of above-mentioned 8th embodiment and look in the distance unit 8030t and sixth embodiment Angle unit 6030n and the unit 6030t that looks in the distance are essentially identical, in addition to the configurations discussed above.Therefore, it according to the 8th embodiment, removes With to except the related operating effect of entrance structure in window of exposure 6431n and 6431t, Top of Mind group to the 4th is referred to Group makes it possible to generate the identical behaviour of the operating effect referred to the Top of Mind group according to sixth embodiment to the 4th in group Make effect.

(the 9th embodiment)

As shown in Figure 25 to Figure 32, the 9th embodiment is the modification of sixth embodiment.In the 9th embodiment In, in the cover 9040 shown in Figure 25 to Figure 27, it is arranged on 9043 He of a pair of sidewalls part of the two sides of imaging space 410 Be arranged on the base wall portion 9041 of the downside of imaging space 410 in structure with part those of in sixth embodiment not Together, and with the control function of vehicle 2 it constructs in association.

In the 9th embodiment, the control function of the vehicle 2 the case where external environment 5 shown in 8 and Figure 29 according to fig. 2 It can be installed in control circuit 55 such as ECU is connected in the external circuit of aerial lug 542.In the example In, control function first is that vehicle 2 prevents the front obstacle 5a as the object in external environment 5 (for example, pedestrian, voluntarily Vehicle, other vehicles etc.) collision limit control.Control function first is that the specific control Cs of vehicle 2.Specific control Cs's is specific Example is automatic emergency brake (AEB), and automatic emergency brake (AEB) is in collision time (TTC) close to several seconds or shorter urgent Control condition automatically controls the speed of vehicle 2 in the case where setting up, to force to make deceleration of vehicle 2 etc..In addition, control function it First is that Driving control of the vehicle 2 in traveling lane.Control function first is that be different from it is specific control Cs vehicle 2 other control Ca processed.The specific example of other controls Ca is that lane keeps auxiliary (LKA), and lane holding auxiliary (LKA) automatically controls vehicle 2 and exists Position in the width direction of traveling lane, to limit vehicle 2 from the lane line on such as road surface in external environment 5, yellow The lane markings 5b of lane line etc. is deviated.

As shown in Figure 27 to Figure 30, the horizontal view angle scope of external environment 5 required for the specific control Cs of vehicle 2 is fallen into It is mounted within the scope of the imageable target of the camera module 1 on front windshield 3.The vertical direction of vehicle 2 on along the horizontal plane When viewing (in horizontal plane view), horizontal view angle scope by the optical axis Aw with wide-angle unit 6030w the first taper angle theta 1 It limits, optical axis Aw is bisector.In this example, the first taper angle theta 1 is less than around the optical axis Aw wide-angle unit 6030w's limited The horizontal view angle scope of view angle theta w.For example, the first taper angle theta 1 is configured to 100 ° or bigger of angle.For example, the first taper angle theta 1 It can be to the front obstacle 5a of 13m or more before vehicle 2 in the case where TTC is provided in equal to or more than 2.4 seconds The angle being imaged.

As shown in Figure 31 and Figure 32, the vertical angular field of view of external environment 5 required for the specific control Cs of vehicle 2 is fallen Within the scope of the imageable target for entering to be mounted on the camera module 1 on front windshield 3.The horizontal view of vehicle 2 in the horizontal plane In (that is, side view), vertical angular field of view is limited by the sum of the first angle of depression ψ d1 and the first elevation angle ψ e1.In this example, first The vertical angular field of view of view angle theta w of the sum of angle of depression ψ d1 and the first elevation angle ψ e1 less than wide-angle unit 6030w.For example, first angle of depression ψ d1 is configured to 6 ° or smaller angle etc..For example, the first angle of depression ψ d1 is provided in the feelings that TTC is equal to or more than 2.4 seconds It can be to the angle that the front obstacle 5a of 13m or more is imaged before vehicle 2 under condition.

As shown in Figure 28, the horizontal view angle scope of the external environment 5 according to required for specific control Cs and vertical visual angle Range is exclusively used in the independent areas imaging Us of specific control Cs to determine.As shown in Figure 27, Figure 28, Figure 30 and Figure 32, first Lower part light L1 is assumed that the left and right ends Use from the lowermost part of independent areas imaging Us is bowed with the first taper angle theta 1 and first Angle ψ d1 enters the light of wide-angle unit 6030w.Under above-mentioned hypothesis, as shown in Figure 27, Figure 30 and Figure 32, with specific control The associated first lower part light L1 of Cs is defined as first with the inner surface 3a of the front windshield 3 of vehicle 2 point hypothetically intersected Imaginary intersection I 1.As shown in Figure 27, the front and rear end of each of first imaginary intersection I 1 and sidewall sections 9043 it Between middle section upside it is associated.In this way, each of sidewall sections 9043 are configured as follows.

In vehicle 2, each sidewall sections 9043 are fixed in the wide-angle unit 6030w lateral confinement of the rear side of the first imaginary intersection I 1 Inner wall surface 9043a.Inner wall surface 9043a has with the taper line of left and right two of the first taper angle theta 1 small net respectively on the outside It is empty.The left and right taper line of first taper angle theta 1 is overlapped with the first lower part light L1 substantially respectively.In vehicle 2, each sidewall sections 9043 determine inner wall surface 9043a in 5 lateral confinement of external environment of the first imaginary intersection I 1 of front side.Inner wall surface 9043a is on the outside There is small headroom with the taper line of left and right two of the first taper angle theta 1 respectively.In this example, by will be relative to wide-angle unit Those of the optical axis Aw of 6030w tilt angle is arranged to substantially equal to each other, and the inner wall surface 9043a of sidewall sections 9043 is in list It is continuous in a plane.In this way, in vehicle 2, each sidewall sections 9043 prolong from the periphery of wide-angle unit 6030w The first imaginary intersection I 1 is extended to, and is also extended 5 side of environment towards the outside from the first imaginary intersection I 1.In addition, along the vertical direction When viewing, each sidewall sections 9043 are in inner wall surface 9043a and are tilted along taper line with the first taper angle theta 1 and first State except taper angle theta 1 corresponds to the view angle theta w of wide-angle unit 6030w.In an inclined state, it is watching along the vertical direction When each sidewall sections 9043 enter the inside of view angle theta w.

Each sidewall sections 9043 are used separately as window of exposure 6431n and 6431t in the first side wall part being wherein open 6432 and second sidewall part 6433.In this example, in the side wide-angle unit 6030w of the first imaginary intersection I 1, according to the 9th The window of exposure 6431n and 6431t of embodiment are respectively in the sloping portion split shed of sidewall sections 9043.That is, window of exposure 6431n and 6431t is respectively in 6433 upper opening of the first side wall part 6432 and second sidewall part.

On the contrary, horizontal view angle scope required for other controls Ca of vehicle 2 falls in external rings as shown in Figure 27 to Figure 30 In the areas imaging in border 5.In the vertical direction viewing of the vehicle 2 on along the horizontal plane, horizontal view angle scope is by with wide-angle list The second taper angle theta 2 of the optical axis Aw of first 6030w limits, and optical axis Aw is bisector.In this example, the second taper angle theta 2 is further small In the first taper angle theta 1, the horizontal view angle scope of view angle theta w of first taper angle theta 1 less than wide-angle unit 6030w.For example, the second taper angle theta 2 are configured to 50 ° or the bigger and angle less than 100 °.For example, be configured to can be to before vehicle 2 for the second taper angle theta 2 The angle that lane markings 5b on the road surface of 8.5m or more is imaged.

As shown in Figure 31 and Figure 32, vertical angular field of view required for other controls Ca of vehicle 2 falls in external environment 5 Imageable target within the scope of.In the horizontal view of vehicle 2 in the horizontal plane, vertical angular field of view is by the second angle of depression ψ d2 and Two elevation angle ψ e2's and limit.In this example, the sum of the second angle of depression ψ d2 and the second elevation angle ψ e2 are less than wide-angle unit 6030w's The vertical angular field of view of view angle theta w.For example, the second angle of depression ψ d2 is configured to 6 ° or bigger and 12 ° or smaller angle.Example Such as, the second angle of depression ψ d2 is configured to the lane markings 5b before vehicle 2 on the road surface of 8.5m or more can be imaged Angle.Second angle of depression ψ d2 is greater than the first angle of depression ψ d1.

As shown in Figure 28, the horizontal view angle scope of the external environment 5 according to required for other controls Ca and vertical visual angle Range is exclusively used in the independent areas imaging Ua of other controls Ca to determine.As shown in Figure 28, Figure 29, Figure 30 and Figure 32, second Lower part light L1 is assumed that the left and right ends Uae from the lowermost part of independent areas imaging Ua is bowed with the second taper angle theta 2 and second Angle ψ d2 enters the light of wide-angle unit 6030w.Under above-mentioned hypothesis, as shown in Figure 27, Figure 30 and Figure 32, with other controls The associated second lower part light L2 of Ca is defined as second with the inner surface 3a of the front windshield 3 of vehicle 2 point hypothetically intersected Imaginary intersection I 2.As shown in Figure 27, the second imaginary intersection I 2 is associated with the top of the front end of base wall portion 9041, to produce The following configuration of raw base wall portion 9041 and sidewall sections 9043.

In vehicle 2, in the side wide-angle unit 6030w, i.e., rear side at the second imaginary 2 rear of intersection I, base wall portion 9041 Form bottom wall surface 9041a.Base wall portion 9041 forms bottom wall surface in entire interior zone and predetermined perimeter 9041a.Corresponding taper line in the left and right taper line of second taper angle theta 2 is situated between by one of predetermined perimeter and entire interior zone Enter therebetween.The left and right taper line of second taper angle theta 2 and corresponding second lower part light L2 are overlapped substantially.In this way, in vehicle In 2, base wall portion 9041 extends from the periphery of wide-angle unit 6030w towards the second imaginary intersection I 2 and in the second imaginary intersection I 2 Inner side and outer side extend.In base wall portion 9041, bottom wall surface 9041a prolongs in the exterior portion of the second imaginary intersection I 2 Extend to the slightly exterior portion of the taper line of the first taper angle theta 1.In addition, the inner wall surface 9043a of respective side walls part 9043 distinguishes The slightly exterior portion of the taper line of the first taper angle theta 1 is extended in the exterior portion of the second imaginary intersection I 2.Matched by this It sets, base wall portion 9041 and each sidewall sections 9043 are formed laterally to extend outwardly beyond the second imaginary intersection I 2.

It is essentially identical according to the cover 9040 of the 9th embodiment and the cover 6040 of first embodiment, other than configuration. According to the cover 9040 of the 9th embodiment, in vehicle 2, sidewall sections 9043 are handed over from the periphery of wide-angle unit 6030w towards imagination Point I1 expansion.According to the configuration, though in the case where cover 9040 is formed lesser situation, at imaginary intersection I 1 with taper angle theta 1 with The incident of the lower part light L1 that front windshield 3 intersects also is less likely to be stopped by sidewall sections 9043.Taper angle theta 1 limits imageable target Horizontal view angle scope in range；Horizontal view angle scope is less than the view angle theta w of wide-angle unit 6030w.Therefore, which makes it possible to Enough sizes for reducing the camera module 1 including cover 9040, cover 9040 guarantee to capture the taper angle theta 1 of normal optical image.

According to the cover 9040 of the 9th embodiment, in the side wide-angle unit 6030w of imaginary intersection I 1, the sidewall portion of vehicle 2 9043 are divided to be unfolded outside taper angle theta 1 along taper angle theta 1.According to the configuration, the cover for ensuring taper angle theta 1 can be formed with finite size 9040.The configuration makes it possible to promote the size of the camera module 1 including cover 9040 to reduce, and cover 9040 guarantees to capture The taper angle theta 1 of normal optical image.

According to the cover 9040 of the 9th embodiment, in vehicle 2, it is being less likely to influence the side of taper angle theta 1, sidewall portion 9043 are divided to be expanded to outside taper angle theta 1 along taper angle theta 1.By being unfolded, from wide-angle unit 6030w towards imaginary intersection I 1 i.e. in external rings 5 side of border ensures taper angle theta 1 beyond the sidewall sections 9043 of the first imaginary intersection I 1.Exceed imaginary intersection I 1 in 5 side of external environment In wide region, sidewall sections 9043 are raised in base wall portion 9041.Sidewall sections 9043 and base wall portion 9041 are enable to assist Make to stop light before light reflects on front windshield 3, and if light reflects on front windshield 3, limits light and enter taper angle theta 1 inside.Therefore, which makes it possible to increase in the case where the size that will not significantly weaken camera module 1 reduces Strong following effect: it is limited in that reflected light on front windshield 3 is superimposed on normal optical light and to limit reflected light dry Imaging is related to, camera module 1 includes cover 9040 to ensure taper angle theta 1 and normal optical image can be imaged.

In addition, according to the cover 9040 of the 9th embodiment, as described above, sidewall sections 9043 hardly stop lower part light The incidence of L1, lower part light L1 are intersected with taper angle theta 1 with front windshield 3 at imaginary intersection I 1 within the scope of imageable target.Taper angle theta 1 It is required for the specific control Cs of vehicle 2.Therefore, it includes the camera module 1 for covering 9040 which, which makes it possible to reduce, Size, the normal optical image required for specific control Cs in taper angle theta 1 can be imaged in camera module 1.

According to the cover 9040 of the 9th embodiment, in vehicle 2, sidewall sections 9043 are from the periphery of wide-angle unit 6030w It is unfolded towards the first imaginary intersection I 1.First imaginary intersection I 1 is imaginary intersection I 1.According to the configuration, even if being formed in cover 9040 It obtains in lesser situation, sidewall sections 9043 also hardly stop the incidence of the first lower part light L1, and the first lower part light L1 exists Intersected with the first angle of depression ψ d1 and taper angle theta 1 with front windshield 3 at first imaginary intersection I 1.In addition, in vehicle 2, base wall portion 9041 are unfolded from the periphery of wide-angle unit 6030w towards the second imaginary intersection I 2.According to the configuration, base wall portion 9041 and sidewall portion Divide 9043 incidences for hardly stopping the second lower part light L2, the second lower part light L2 is at the second imaginary intersection I 2 with the second cone Angle θ 2 and the second angle of depression ψ d2 intersect with front windshield 3.Second taper angle theta 2 is less than the first taper angle theta 1.Second angle of depression ψ d2 is greater than first and bows Angle ψ d1.According to above-mentioned viewpoint, which makes it possible to reduce the size of the camera module 1 including cover 9040.Cover 9040 is not The normal optical image in the first taper angle theta 1 required for the specific control Cs of vehicle 2 can be only captured, but also can be captured Normal optical image in second taper angle theta 2 required for other controls Ca of vehicle 2.

In addition, according to the cover 9040 of the 9th embodiment, in vehicle 2, in sidewall sections 9043 and base wall portion 9041 Being less likely influences the side of the first taper angle theta 1, sidewall sections 9043 and base wall portion 9041 is unfolded towards the second imaginary intersection I 2. By being unfolded from wide-angle unit 6030w towards the first imaginary intersection I 1, i.e. in side of 5 side of external environment beyond the first imaginary intersection I 1 Wall part 9043 and base wall portion 9041 ensure the first taper angle theta 1.Sidewall sections 9043 and the cooperation of base wall portion 9041 are so that energy It is enough to stop light before light reflects on front windshield 3, and if light reflects on front windshield 3, light is limited into the first cone The inside of angle θ 1 and limit light enter the second taper angle theta 2 inside.Therefore, which makes it possible to capture specific control Cs institute The normal optical image in the first taper angle theta 1 needed, and capture normal in the second taper angle theta 2 required for other controls Ca Optical imagery.

According to the 9th embodiment, prevent the collision of front obstacle 5a from limiting control in the vehicle 2 as specific control Cs In system, it can be ensured that the first relatively large taper angle theta 1, and desired collision limitation function can be obtained.On the other hand, making To control the vehicle 2 of Ca in the Driving control in traveling lane different from other of specific control Cs, which makes it possible to Ensure with the second relatively large angle of depression ψ d2 of the second incident lower part light L2 of the second taper angle theta 2.In this case, the second cone Angle θ 2 can be relatively small.The configuration makes it possible to present desired Driving control function.

Incidentally, in above-mentioned the including narrow angle unit 6030n and the unit 6030t and wide-angle unit 6030w that looks in the distance In nine embodiments, the identical behaviour of operating effect that group is referred to the Top of Mind group of sixth embodiment to the 4th can produce Make effect.

(the tenth embodiment)

As shown in Figure 33, the tenth embodiment is the modification of first embodiment.It, will be each in the tenth embodiment The public public positioning member 10060 of a lens unit 30 is added to camera module 1.

Public positioning member 10060 is formed plate-like shape, and is made of the rigid material of such as metal or resin. Public positioning member 10060 is fixed to the upper case member 21 of photographic device shell 20.Photographic device shell 20 by using Each lens unit 10030 and imaging system 50 are contained in accommodation space 25 by screw or adhesive by being pressed.? In the example, as in the first embodiment, photographic device shell 20 is mounted on 3 inside of windscreen by bracket component 10, So that public positioning member 10060 is positioned in vehicle 2.

Public positioning member 10060 have correspond respectively to each lens unit 10030, in other words correspond respectively to it is each Unit 10030w, 10030n and 10030t multiple (they being in the present embodiment three) insertion hole 10600w, 10600n and 10600t.Each insertion hole 10600w, 10600n and 10600t respectively with each unit 10030w, 10030n and 10030t The cylinder hole shape of optical axis Aw, An and At alignment penetrates public positioning member 10060.In other words, each insertion hole 10600w, 10600n and 10600t in axial direction penetrates public positioning member 10060.In axial direction and transverse direction and vertical direction Each intersection.Lens barrel 10032w, 10032n and 10032t of each unit 10030w, 10030n and 10030t are respectively by shape As the cylindrical shape with outer diameter.Outer diameter be respectively cooperating with (complement) accordingly insertion hole 10600w, 10600n and The diameter of 10600t.

Public positioning member 10060 has reference surface part 10601, in reference surface part 10601, each insertion Hole 10600w, 10600n and 10600t are in its rear surface upper opening opposite with external environment 5.10601 quilt of reference surface part Be formed as flat-surface shapes and be substantially perpendicular to optical axis Aw, An and At of each unit 10030w, 10030n and 10030t Positioning.When watching along the vertical direction, the master meter at the position that each unit 10030w, 10030n and 10030t overlap each other Face part 10601 is along single planar development.In this example, the lens barrel of each unit 10030w, 10030n and 10030t 10032w, 10032n and 10032t respectively in axial direction with reference surface part 10601 overlap position at, with annular slab Flange 10038w, 10038n and 10038t of shape shape are integrated.In each unit 10030w, 10030n and 10030t, flange 10038w, 10038n and 10038t respectively in the front surface of its 5 side of external environment have abutment surface part 10380w, 10380n and 10380t.Abutment surface part 10380w, 10380n and 10380t are flat-surface shapes and are substantially perpendicular to Corresponding optical axis Aw, An and At.

In the configuration, correspondingly along axis respectively by the lens barrel of each unit 10030w, 10030n and 10030t 10032w, 10032n and 10032t are coaxially assembled in insertion hole 10600w, 10600n and 10600t.In addition, each unit Lens barrel 10032w, 10032n and 10032t of 10030w, 10030n and 10030t respectively in axial direction direction on common reference surface On part 10601 with abutment surface part 10380w, 10380n and 10380t of respective flanges 10038w, 10038n and 10038t Surface contact.In this way, along reference surface part 10601, by each unit 10030w, 10030n and 10030t relative to Photographic device shell 20 positions in the same plane in the axial direction.In addition, unit 10030w, 10030n and 10030t distinguish It is mounted in insertion hole 10600w, 10600n and 10600t also to be positioned in transverse direction and vertical direction.

Lens barrel 10032w, 10032n and 10032t of each unit 10030w, 10030n and 10030t are with described above Mode positions, and is fixed to public positioning structure by the 10038t of respective flanges 10038w, 10038n by using screw Part 10060.Alternatively, by using adhesive or by being pressed respectively by the mirror of unit 10030w, 10030n and 10030t Cylinder 10032w, 10032n and 10032t are fixed to insertion hole 10600w, 10600n and 10600t.

According to above-mentioned tenth embodiment, in vehicle 2, each lens unit 10030 is public by using these units Public positioning member 10060 be accommodated in the photographic device shell 20 for be attached to front windshield 3 in axial direction to be determined Position.In other words, according to the tenth embodiment, made by using public positioning member 10060 as belonging to Top of Mind group to Four refer to group lens unit 10030 unit 10030w, 10030n and 10030t relative to photographic device shell 20 along axial direction Direction positioning.In this way, public positioning member 10060 make it possible to reduce each unit 10030w in vehicle 2, The variation of the mutually axially positional relationship of 10030n and 10030t.In other words, it can be ensured that each unit in vehicle 2 The positioning accuracy of 10030w, 10030n and 10030t.Furthermore, it is possible to by using public positioning member 10060, adjustment is each jointly The axial position of a unit 10030w, 10030n and 10030t.It is thus possible to improve productivity.

According to the public positioning member 10060 of the tenth embodiment, in vehicle 2, reference surface part 10601 is in axial direction Adjacent each unit 10030w, 10030n and 10030t on direction, to position all units.Particularly, in the tenth embodiment party In formula, all unit 10030w, 10030n and 10030t pass through adjacent reference surface part 10601 and are positioned in same plane On.It according to the configuration, can be accurately placed in each unit 10030w, 10030n and 10030t on same plane.Cause This, in vehicle 2, which hardly causes the essential change of mutually axially positional relationship.It in other words, can be with high precision Position each unit 10030w, 10030n and 10030t in vehicle 2.In addition, each unit 10030w, 10030n and 10030t It can easily and be jointly positioned on same plane in the axial direction by adjacent reference surface part 10601. Therefore, which makes it possible to promote high production rate.

Incidentally, according to each unit 10030w, 10030n and 3030t and first embodiment of the tenth embodiment Unit 30w, 30n and 30t it is essentially identical, in addition to the configurations discussed above.Therefore, according to the tenth embodiment, can produce with The identical operating effect of operating effect that Top of Mind group in first embodiment refers to group to the 4th.Particularly, according to Ten embodiments can accurately set identification by axial direction positioning each unit 10030w, 10030n and 10030t Depth of field Dw, Dn and Dt.Therefore, which makes it possible to ensure that the effect that the object in limitation overlapping region Rnw and Rtn is lost Reliability.Particularly, according to the tenth embodiment, each unit 10030w, 10030n and 10030t are mounted to edge respectively Axial direction penetrates in insertion hole 10600w, 10600n and 10600t of public positioning member 10060, thus in a lateral direction It is positioned.Therefore, according to the tenth embodiment, which makes it possible to ensure that and improves in transverse direction in external environment imaging Picture position precision effect reliability.

(other embodiments)

Multiple embodiments are described above.However, the disclosure should not be construed as being limited to these embodiments, And various embodiments and combination can be applied to without departing from the spirit of the present disclosure.In the following description, scheme 34, the representative example of Figure 45 and Figure 46 expression modification related with second embodiment, and Figure 35 to Figure 37, Figure 40, Figure 48 and Figure 49 indicates the representative example of modification related with first embodiment, and Figure 38, Figure 39, Figure 43 and Figure 44 Indicate the representative example of modification related with third embodiment.In the following description, Figure 41 and 42 is typically illustrated The modification of 9th embodiment, and Figure 47 typically illustrates the modification of sixth embodiment.

Specifically, in modification 1 related with first embodiment to the 5th embodiment and the tenth embodiment, Wide-angle unit 30w, 2030w, 3030w, 4030w, 5030w and 10030w, narrow angle unit 30n, 2030n, 3030n and 10030n with And the position of Unit at least two in look in the distance unit 30t, 2030t, 3030t and 10030t can be substituted for one another.At this In the case of kind, in the particular example shown in Figure 34, in this second embodiment, wide-angle unit 2030w and the unit 2030t that looks in the distance Position it is substituted for one another.In this example, due to focal length corresponding with view angle theta w, θ n and θ t (more specifically, lens 34w, The combined focal of 34n, 34t and its subsequent lens group), in the front end of the front end for the unit 2030t that looks in the distance and narrow angle unit 2030n Between the front end and corresponding Imager cells 51 of the distance between each and corresponding imager 51 than wide-angle unit 2030w away from From length.Therefore, in the particular example shown in Figure 34, the unit 2030t and narrow angle unit 2030n that looks in the distance is than wide-angle unit 2030w is prominent more towards deeper side, so as to reduce the size of camera module 1 in a longitudinal direction.

In the modification 2 of first embodiment to the tenth embodiment, the unit 30t, 2030t that can be not provided with looking in the distance, 3030t, 6030t, 7030t, 8030t and 10030t.In this case, though narrow angle unit 30n, 2030n, 3030n, The narrow-angle lens 34n of 6030n, 7030n, 8030n and 10030n looked in the distance unit 30t, 2030t, 3030t, 6030t, 7030t, In the case where the telephoto lens 34t replacement of 8030t and 10030t, also it can produce and first embodiment to the tenth embodiment The identical operating effect of operating effect.

With first embodiment, second embodiment, the 4th embodiment, the 5th embodiment and the tenth embodiment In related modification 3, the position of look in the distance unit 30t, 2030t and 10030t can be different from narrow angle unit 30n, The upside of 2030n and 10030n.In this case, in the particular example shown in Figure 35 to Figure 37, the unit 30t that looks in the distance is in cross It is located at the side of at least one of wide-angle unit 30w and narrow angle unit 30n on direction.In this way, look in the distance unit 30t It is overlapping at least one of wide-angle unit 30w and narrow angle unit 30n in a lateral direction.

In modification 4 related with third embodiment to the 5th embodiment and the tenth embodiment, according to Two embodiments, wide-angle unit 3030w, 4030w, 5030w and 10030w can angle unit 3030n, 10030n narrower than top and Look in the distance at least one of unit 3030t, 10030t is more prominent to deeper side.In this case, shown in Figure 38 and Figure 39 Particular example in, wide-angle unit 3030w than narrow angle unit 3030n and look in the distance both unit 3030t more to deeper side it is prominent.

With first embodiment, third embodiment, the 4th embodiment, the 5th embodiment and the tenth embodiment In related modification 5, according to second embodiment, microlens window 211 can be respectively set at unit 30w, 30n, 30t, In each of 3030w, 3030n, 3030t, 4030w, 5030w, 10030w, 10030n and 10030t.Implement with second In the related modification 6 of mode, according to first embodiment, microlens window 211 can arrive all units by publicly setting 2030w, 2030n and 2030t.

In modification 7 related with first embodiment, the 4th embodiment, the 5th embodiment and the tenth embodiment In, the optical axis Aw of each unit 30w, 30n, 30t, 4030w, 5030w, 10030w, 10030n and 10030t shown in Figure 40, An and At is particularly eccentric each other in a lateral direction, these units when watching in transverse direction are overlapped each other. In such a case, it is possible to mode identical with the mode in first embodiment generate in addition to the image in transverse direction Operating effect except the related operating effect of position precision.Furthermore it is possible to ensure transverse direction by the offset for correcting position coordinates Picture position precision on direction.

With second embodiment, third embodiment and sixth embodiment to the related modification of the tenth embodiment In example 8, the identification depth of field of wide-angle unit 2030w, 3030w, 6030w and 10030w can be set according to the 4th embodiment Dw.With second embodiment, third embodiment and sixth embodiment to the related modification 9 of the tenth embodiment In, the identification depth of field Dw of wide-angle unit 2030w, 3030w, 6030w and 10030w can be set according to the 5th embodiment.

With sixth embodiment into the related modification 10 of the 9th embodiment, narrow angle unit 6030n, 7030n, The position of 8030n and look in the distance unit 6030t, 7030t and 8030t can be substituted for one another.With sixth embodiment to In the related modification 11 of nine embodiments, the front end of wide-angle unit 6030w can inside from microlens window 6211w and wide-angle The inside of window of exposure 6431w enters imaging space 410.With sixth embodiment to the related modification of the 9th embodiment In 12, the front end of wide-angle unit 6030w can be except imaging space 410 and outside wide-angle window of exposure 6431w In the state of enter microlens window 6211w inside.

In the modification 13 according to sixth embodiment to the 9th embodiment, each unit 6030w, 6030n, At least two optical axises in optical axis Aw, An and At of 6030t, 7030n, 7030t, 8030n and 8030t can in transverse direction and It is eccentric each other in vertical direction the two, and deviate in the vertical direction.According to the 9th embodiment to the tenth embodiment Modification 14 in, specific control Cs can be different from vehicle 2 collision limitation control.In the modification according to the 9th embodiment In example 15, as long as other controls Ca is different from specific control Cs, other controls Ca can be different from vehicle 2 in traveling lane Driving control.In the modification 16 according to the 9th embodiment, other controls Ca can not be executed.In this case, The second taper angle theta 2 is not limited.Therefore, hypothetically fixed limit it can not determine the second imaginary intersection I 2.For example, can be along specified second Angle of depression ψ d2 forms base wall portion 9041.

In the modification 17 according to first embodiment to the tenth embodiment, at least one sidewall sections 43,6043 It can be risen as the crow flies from base wall portion 41 and 9041 with acute angle or obtuse angle with 9043.Real to the tenth according to first embodiment It applies in the modification 18 of mode, the sidewall sections 43,6043 and 9043 of at least side can be formed to bend plate shape or curved Bent plate shape.In this case, in the particular example shown in Figure 41, sidewall sections 9043 are corresponding to the first imaginary intersection point Bending is at the position of I1 to be respectively provided with bending part 9043b and straight part 9043c.In this example, such as implement the 9th In mode like that, bending part 9043b is formed so that in the side wide-angle unit 6030w of the first imaginary intersection I 1, in those Taper line of the wall surface 9043ab in the outer lateral edge view angle theta w of the first taper angle theta 1 is unfolded.First taper angle theta 1 corresponds to wide-angle unit The view angle theta w of 6030w.Window of exposure 6431n and 6431t is in bending part 9043b split shed.On the other hand, false beyond first Think 5 side of external environment of intersection I 1, straight part 9043c is different from the 9th embodiment.Inner wall surface 9043ac is put down substantially Row is unfolded on the inside of the taper line of the first taper angle theta 1 in the optical axis Aw of wide-angle unit 6030w.

In modification 19 related with the 9th embodiment, as shown in Figure 42, window of exposure 6431n and/or 6431t In 5 side of external environment of the first imaginary intersection I 1, at least one of bending part split shed.Window of exposure 6431n and/or 6431t is at least one 9043 upper opening of sidewall sections.Figure 42 shows the sidewall sections 9043 that modification 19 is applied to two sides Specific example.

It, into the related modification 20 of the 5th embodiment, can be set according to the tenth embodiment party with third embodiment The public positioning member 10060 and flange 10038w, 10038n, 10038t of formula so that each unit 30n, 30t, 3030w, 3030n, 3030t, 4030w and 5030w overlap each other and lead at least one direction in vertical direction and transverse direction It crosses and is positioned on same plane using reference surface part 10601.In this case, specific shown in Figure 43 and Figure 44 In example, each unit 3030w, 3030n and 3030t are positioned in together at the crossover position on vertical direction or transverse direction In one plane.

With second embodiment and sixth embodiment into the related modification 21 of the 9th embodiment, Ke Yishe The public positioning member 10060 and flange 10038w, 10038n, 10038t according to the tenth embodiment are set, so that each unit 2030w, 2030n, 2030t, 6030w, 6030n, 6030t, 7030n, 7030t, 8030n and 8030t are by using reference surface Part 10601 is positioned on same plane, as long as at least one direction of these units in vertical direction and transverse direction On overlap each other.In this case, it in the particular example shown in Figure 45, is combined with above-mentioned modification 1, in vertical side Each unit 2030w, 2030n and 2030t are positioned on same plane at upward crossover position.

, into the related modification 22 of the 9th embodiment, it can be set and repaired according to the tenth mode with first embodiment The public positioning member 10060 and flange 10038w, 10038n, 10038t changed so that each unit 30w, 30n, 30t, 2030w、2030n、2030t、3030w、3030n、3030t、4030w、5030w、6030w、6030n、6030t、7030n、 7030t, 8030n and 8030t are located on the reference surface part in plane different from each other.In this case, In the particular example shown in Figure 46 and Figure 47, respectively by using divided reference surface part 10601w, 10601n and Each unit 2030w, 2030n, 2030t, 6030w, 6030n and 6030t are in axial direction respectively positioned at each other by 10601t In different planes.

It, into the related modification 23 of the 9th embodiment, can be set according to the tenth embodiment party with first embodiment Formula modification public positioning member 10060 so that each unit 30w, 30n, 30t, 2030w, 2030n, 2030t, 3030w, 3030n, 3030t, 4030w, 5030w, 6030w, 6030n, 6030t, 7030n, 7030t, 8030n and 8030t are by using spiral shell Nail is separately fixed to insertion hole 10600w, 10600n and 10600t and is positioned.In this case, shown in Figure 48 In particular example, by each unit 30w, 30n and 30t being screwed into respectively in insertion hole 10600w, 10600n and 10600t Obtain the positioning on axial direction.

In the modification 24 according to first embodiment to the tenth embodiment, can be by photographic device shell 20 outside Such as ECU external circuit generate control circuit 55 function at least part function.According to first embodiment Into the modification 25 of the tenth embodiment, at least one can not be formed on control panel 54 and passes through window 541.In this feelings Under condition, as shown in Figure 49, replaced by the FPC 540 being inserted by window 541 by FPC 1540, FPC 1540 is around control The peripheral side of the posterior edges 544 of plate 54.Figure 49 shows be only connected to look in the distance unit 30t and corresponding Imager cells 51 Particular example of the FPC 1540 around the peripheral side of posterior edges 544.

In the modification 26 according to first embodiment to the tenth embodiment, rack body 11 can be fixed adhesively Installation pad 12 is not provided with to front windshield 3.In the modification 27 according to first embodiment to the tenth embodiment, maintain The installation pad 12 of photographic device shell 20 can adhesively be fixed to front windshield 3 and not have to setting rack body 11.

In the modification 28 according to first embodiment to the tenth embodiment, cover 40,6040 and 9040 can be with branch Frame body 11 is formed separately.In modification 29 related with first embodiment to the 5th embodiment and the tenth embodiment In, can be replaced according to the cover 6040 that sixth embodiment is modified with quilt cover 40, with not respectively from window of exposure 6431w, 6431n and 6431t and between the rear end of each sidewall sections 6043 part exposure unit 30w, 30n, 30t, 2030w, 2030n, 2030t, 3030w, 3030n, 3030t, 4030w, 5030w, 10030w, 10030n and 10030t.With first embodiment extremely It, can be with according to the cover 9040 of the 9th embodiment modification in 5th embodiment and the related modification 30 of the tenth embodiment Quilt cover 40 replaces, not respectively from window of exposure 6431w, 6431n and 6431t and between the rear end of each sidewall sections 9043 Part exposure unit 30w, 30n, 30t, 2030w, 2030n, 2020t, 3030w, 3030n, 3030t, 4030w, 5030w, 10030w, 10030n and 10030t.

In the modification 31 according to the 7th embodiment and the 8th embodiment, cover 6040 can use the 9th embodiment Cover 9040 replace.It, can according to first embodiment into the modification 32 of the 5th embodiment and the tenth embodiment To be not provided with cover 40.It, can be in cover 40,6040 and in the modification 33 according to first embodiment to the tenth embodiment The multiple fins or multiple grooves extended in transverse direction are set in 9040.

In the modification 34 according to first embodiment to the tenth embodiment, each unit 30w, 30n, 30t, 2030w、2030n、2020t、3030w、3030n、3030t、4030w、5030w、6030w、6030n、6030t、7030n、 At least two extending direction in optical axis Aw, An and At of 7030t, 8030n, 8030t, 10030w, 10030n and 10030t It can be angled with respect to each other.In addition to that mentioned above, it in repairing in example 35 to the tenth embodiment according to first embodiment, takes the photograph As apparatus module 1 can be installed on the inside of the rear windshield of vehicle 2, and in this case, in first embodiment to the Background is inverted in ten embodiments.

In another modification, camera module include the multiple lens units 30 for being respectively provided with optical axis Aw, An, At, 2030,3030,10030.Optical axis is offset from one another.The optical imagery of external environment respectively enters view angle theta w, θ for surrounding optical axis respectively N, in θ t.View angle theta w, θ n, θ t are different from each other.Camera module further includes imaging system 50, to pass through lens unit respectively Execute the external image for being imaged and generating external environment.Referring to that group is one group of lens list that view angle theta w, θ n, θ t overlap each other Member restriction under, along the vertical direction of vehicle viewing when belong to refer to group lens unit at least two lens units that This is overlapping.

In another modification, camera module includes the multiple lens units for being respectively provided with optical axis Aw, An, At 6030.Optical axis is offset from one another, and the optical imagery of external environment respectively enters respectively in view angle theta w, θ n, θ t of optical axis.Camera shooting Apparatus module further includes imaging system 50, to execute the exterior view for being imaged and generating external environment by lens unit respectively Picture.Camera module further includes the cover 6040,9040 for limiting imaging space 410, and imaging space 410 is used for imaging system The optical imagery of external environment within the scope of imageable target is guided to lens unit, and limits light except imageable target range It is incident on lens unit.One of lens unit, which is defined as having, to be wider than or equal to remaining lens in multiple lens units The first angle unit 6030w of the view angle theta w at the visual angle of unit.Cover includes: the base being oriented via imaging space towards windscreen Wall part 41,9041；And sidewall sections 6043,9043, sidewall sections 6043,9043 imaging space cross side from basal wall Part is risen, and correspondingly from the periphery of first angle unit, ambient side is laterally towards the outside with the view angle theta w of wide-angle unit It stretches out.Narrow angle window of exposure 6431n, 6431t in sidewall sections split shed, and by multiple lens units remaining thoroughly One of mirror unit is exposed to imaging space.

In another modification, camera module include the multiple lens units 30 for being respectively provided with optical axis Aw, An, At, 2030,3030,6030,10030.Optical axis is offset from one another, and the optical imagery of external environment respectively enters the view for surrounding optical axis respectively Angle θ w, θ n, in θ t.View angle theta w, θ n, θ t are different from each other.Camera module further includes imaging system 50, to respectively by saturating Mirror unit executes the external image for being imaged and generating external environment.Referring to that group is one group that view angle theta w, θ n, θ t overlap each other Under the restriction of lens unit, belongs to and refer to that identification depth of field Dw, Dn, Dt of the lens unit of group overlap each other, wherein in outside In environment, the near point of a lens unit of far point Dwf, the Dnf of another lens unit in lens unit in lens unit Between Dnc, Dtc and far point Dnf, Dtf.Each of far point and the far point of another lens unit of one lens unit limit The extreme position that the image recognition realized is imaged is carried out by the respective lens unit in lens unit.

In another modification, camera module include the multiple lens units 30 for being respectively provided with optical axis Aw, An, At, 2030,3030,6030,10030.Optical axis is offset from one another, and the optical imagery of external environment respectively enters the view for surrounding optical axis respectively Angle θ w, θ n, in θ t.Camera module further includes imaging system 50, to execute imaging and life by lens unit respectively At the external image of external environment.Camera module further includes attaching to windscreen and accommodating the camera shooting of each lens unit Device housing 20.Camera module further includes public positioning member 10060, and public positioning member 10060 is single component, and And it is publicly arranged for lens unit and positions each lens relative to photographic device shell in the axial direction Unit.

In another modification, in the distance away from 10 meters of camera module, belong in the lens unit for referring to group View angle theta w, θ n, θ t of at least two lens units overlap each other.

In another modification, camera module include the multiple lens units 30 for being respectively provided with optical axis Aw, An, At, 2030,3030,10030.Optical axis is different from each other.

Wide-angle window of exposure 6431w, narrow angle window of exposure 6431n and each of the window of exposure 6431t that looks in the distance are Opening.

Claims

1. a kind of camera module (1) is configured to be mounted on the inside of the windscreen (3) of vehicle (2) and to institute The external environment (5) for stating vehicle is imaged, and the camera module includes:

Be respectively provided with multiple lens units (30,2030,3030,10030) of optical axis (Aw, An, At), wherein the optical axis that This offset, the optical imagery of the external environment respectively enters respectively in the visual angle (θ w, θ n, θ t) of the optical axis, described (θ w, θ n, θ t) is different from each other at visual angle；And

Imaging system (50), for executing the exterior view for being imaged and generating the external environment by the lens unit respectively Picture, wherein

Referring to that group is the restriction for one group of lens unit that the visual angle (θ w, θ n, θ t) in the multiple lens unit overlaps each other Under, in the vertical direction viewing along the vehicle, belong at least two lens in the lens unit for referring to group Unit overlaps each other.

2. camera module according to claim 1, wherein

Belong to the optical axis (Aw, An, At) of the lens unit (30,2030,10030) for referring to group in the perpendicular of the vehicle Histogram is eccentric each other upwards.

3. camera module according to claim 1, wherein

Belong to the optical axis (Aw, An, At) of the lens unit (3030) for referring to group in the vertical direction of the vehicle and It is eccentric each other in transverse direction the two.

4. camera module according to any one of claim 1 to 3, wherein

Belong to the lens unit (30,2030,3030,10030) for referring to group identification depth of field (Dw, Dn, Dt) that This is overlapping.

5. camera module according to any one of claim 1 to 3, wherein

Belonging to the lens unit (30,2030,3030,10030) for referring to group includes:

With by wide-angle lens (34w) limit visual angle (θ w) wide-angle unit (30w, 2030w, 3030w, 4030w, 5030w, 10030w)；And

Visual angle (θ n, θ t) with the narrow viewing angle than the wide-angle unit narrow angle unit (30n, 30t, 2030n, 2030t, 3030n, 3030t, 10030n, 10030t).

6. camera module according to any one of claim 1 to 3, wherein

Visual angle (θ n, θ t) with the narrow viewing angle than the wide-angle unit narrow angle unit (30n, 30t, 2030n, 2030t, 3030n, 3030t, 10030n, 10030t), and

The far point (Dwf) for limiting the identification depth of field (Dw) of the wide-angle unit is located at deeper side, beyond restriction narrow-angle list The near point (Dnc) of the identification depth of field (Dn) of member.

7. camera module according to claim 5, wherein

The windscreen is sloped downwardly towards relatively deep,

The wide-angle unit (2030w, 3030w) is prominent towards deeper side, beyond narrow-angle unit (2030n, 2030t, 3030n, 3030t), and

Narrow-angle unit is in the upside of the wide-angle unit.

8. camera module according to claim 5, wherein

Belong to the lens unit (30,2030,3030,10030) for referring to group further include:

The unit of looking in the distance at the visual angle (θ t) with the narrow viewing angle than narrow-angle unit (30n, 2030n, 3030n, 10030n) (30t, 2030t, 3030t, 10030t).

9. camera module according to claim 5, wherein

Belong to the lens unit (30,2030,10030) for referring to group further include:

Visual angle (θ t) with the narrow viewing angle than narrow-angle unit (30n, 2030n, 10030n) unit of looking in the distance (30t, 2030t, 10030t), and

The far point (Dnf) for limiting the identification depth of field (Dn) of narrow-angle unit is located at deeper side, beyond list of looking in the distance described in restriction The near point (Dtc) of the identification depth of field (Dt) of member.

10. camera module according to claim 8, wherein

The windscreen is sloped downwardly towards relatively deep,

Narrow-angle unit (2030n) is prominent towards the deeper side, beyond the unit of looking in the distance (2030t), and

The unit of looking in the distance is on the upside of narrow-angle unit.

11. camera module according to any one of claim 1 to 3, wherein

In distance of 10 meters away from the camera module, belong at least two in the lens unit for referring to group The visual angle (θ w, θ n, θ t) of lens unit overlaps each other.