CN204989607U - Image finding device - Google Patents

Image finding device Download PDF

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Publication number
CN204989607U
CN204989607U CN201520464696.3U CN201520464696U CN204989607U CN 204989607 U CN204989607 U CN 204989607U CN 201520464696 U CN201520464696 U CN 201520464696U CN 204989607 U CN204989607 U CN 204989607U
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China
Prior art keywords
image
lens
taking device
detachable cover
cover lens
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CN201520464696.3U
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Chinese (zh)
Inventor
陈冠铭
汤相岐
陈纬彧
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Largan Precision Co Ltd
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Largan Precision Co Ltd
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Priority to CN201520464696.3U priority Critical patent/CN204989607U/en
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Abstract

The utility model provides an image finding device which is applied to air circumstance or medium environment, and image finding device contains battery of lens, electronics photosensitive element and removable enclosing cover lens. The battery of lens contains at least lens, and lens have the refracting power. The electron photosensitive element sets up in the imaging surface of battery of lens. Removable enclosing cover lens have the refracting power. Image finding device is in the medium environment, and removable enclosing cover lens, battery of lens and electronics photosensitive element are arranged according to the preface by thing side to picture side along the optical axis. When satisfying specific condition, can maintain image finding device's miniaturization to all possesses good image quality in air circumstance and medium environment.

Description

Image-taking device
Technical field
The utility model relates to a kind of image-taking device, and relates to a kind of miniaturization image-taking device that can be applicable in air ambient and in media environment especially.
Background technology
In recent years, along with the rise of electronic product with camera function, the demand of optical system day by day improves.The photo-sensitive cell of general optical system is nothing more than being photosensitive coupling element (ChargeCoupledDevice, or Complimentary Metal-Oxide semiconductor element (ComplementaryMetal-OxideSemiconductorSensor CCD), CMOSSensor) two kinds, and progressing greatly along with manufacture of semiconductor technology, the Pixel Dimensions of photo-sensitive cell is reduced, optical system develops toward high pixel neighborhoods gradually, therefore also day by day increases the requirement of image quality.
Add the universal of Portable photographic product, and the progress of lens and photo-sensitive cell manufacturing technology, the applied environment of optical system is able to therefore more extensive.But, when the optical system be used in air ambient is applied in media environment originally, such as, environment etc. in water, will make the refracting power of optical system reduce and back focal length is elongated, so that be applied in media environment and produce the disadvantageous optical properties such as image defocuses.
Though there is at present the optical system developing and can be applicable in air ambient and in media environment, the size often due to Portable photographic product is too little, and the problem that other Focusing mechanisms that are difficult to arrange in pairs or groups defocus to solve optical system image in media environment.
Utility model content
The utility model provides a kind of image-taking device, it comprises detachable cover lens, can according to the application demand in air ambient or in media environment, installation simply, removal, adjustment or displacement detachable cover lens, to obtain focusing image respectively in air ambient and in media environment.Therefore, image-taking device of the present utility model, by detachable cover lens, is maintained image quality that is easy-to-use and that do not affect by environment change.
There is provided a kind of image-taking device according to the utility model, it is applied to air ambient or media environment, and image-taking device comprises lens combination, sense electronics optical element and detachable cover lens.Lens combination comprises at least one lens, and lens have refracting power.Sense electronics optical element is arranged at the imaging surface of lens combination.Detachable cover lens have refracting power.Image-taking device in air ambient, lens combination and sense electronics optical element along optical axis by thing side to image side sequential, or detachable cover lens, lens combination and sense electronics optical element along optical axis by thing side to image side sequential.Image-taking device in media environment, detachable cover lens, lens combination and sense electronics optical element along optical axis by thing side to image side sequential.Image-taking device is in media environment, detachable cover lens thing side surface is TLm to the distance of sense electronics optical element on optical axis, the back focal length of image-taking device in media environment is PBFm, and the back focal length of image-taking device in air ambient is PBFa, and it meets following condition:
TLm<40mm; And
|(PBFm-PBFa)|<7μm。
In an embodiment of the present utility model, this image-taking device is in this media environment, and the thing side surface of these detachable cover lens is TLm to the distance of this sense electronics optical element on optical axis, and it meets following condition:
1mm<TLm<20mm。
In an embodiment of the present utility model, the back focal length of this image-taking device in this media environment is PBFm, and the back focal length of this image-taking device in this air ambient is PBFa, and it meets following condition:
|(PBFm-PBFa)|<5μm。
In an embodiment of the present utility model, the maximum visual angle of this image-taking device in this air ambient is FOVa, and the maximum visual angle of this image-taking device in this media environment is FOVm, and it meets following condition:
1.20<FOVa/FOVm。
In an embodiment of the present utility model, the maximum visual angle of this image-taking device in this air ambient is FOVa, and it meets following condition:
100 degree of <FOVa.
In an embodiment of the present utility model, the maximum effective diameter of the thing side surface of these detachable cover lens is Dlf, and it meets following condition:
Dlf<35mm。
In an embodiment of the present utility model, the quantity of these lens of this lens combination is more than four and less than nine.
In an embodiment of the present utility model, without relative movement between these lens of this lens combination and this sense electronics optical element.
More provide a kind of image-taking device according to the utility model, it is applied to media environment, and image-taking device comprises lens combination, sense electronics optical element and shell.Lens combination comprises at least one lens, and lens have refracting power.Sense electronics optical element is arranged at the imaging surface of lens combination.Shell with for lens combination and sense electronics optical element disposed therein, shell comprises housing, at least one detachable cover lens and sealed unit.Detachable cover lens have refracting power, and detachable cover lens, lens combination and sense electronics optical element along optical axis by thing side to image side sequential.Sealed unit is in order to housing and the detachable cover lens of being tightly connected.Image-taking device is in media environment, detachable cover lens thing side surface is TLm to the distance of sense electronics optical element on optical axis, the radius-of-curvature of detachable cover lens thing side surface is Rf, and the radius-of-curvature on surface, detachable cover lens image side is Rr, and it meets following condition:
TLm<40mm; And
0.1<|(Rf-Rr)/(Rf+Rr)|。
In another embodiment of the present utility model, the maximum effective diameter of the thing side surface of these detachable cover lens is Dlf, and it meets following condition:
Dlf<35mm。
In another embodiment of the present utility model, this sealed unit comprises a latch mechanism.
In another embodiment of the present utility model, these detachable cover lens have positive refracting power.
In another embodiment of the present utility model, when this detachable cover lens removal, this lens combination and this sense electronics optical element of this image-taking device are applied to an air ambient.
In another embodiment of the present utility model, the quantity of these detachable cover lens of this image-taking device is at least two, and two these detachable cover lens are alternatively connected with this housing.
In another embodiment of the present utility model, these detachable cover lens at least one are curved month type and have negative refracting power.
In another embodiment of the present utility model, this image-taking device is also applied to an air ambient, these detachable cover lens and the spacing distance of this lens combination respectively in this air ambient and in this media environment on optical axis different.
In another embodiment of the present utility model, these detachable cover lens are plastic lens.
In another embodiment of the present utility model, without relative movement between these lens of this lens combination and this sense electronics optical element.
In another embodiment of the present utility model, this media environment refers to the environment of water.
In another embodiment of the present utility model, this image-taking device is also applied to an air ambient, and the maximum visual angle of this image-taking device in this air ambient is FOVa, and the maximum visual angle of this image-taking device in this media environment is FOVm, and it meets following condition:
1.20<FOVa/FOVm。
In another embodiment of the present utility model, this image-taking device is also applied to an air ambient, and the maximum visual angle of this image-taking device in this air ambient is FOVa, and it meets following condition:
100 degree of <FOVa.
In another embodiment of the present utility model, this image-taking device is in this media environment, and the thing side surface of these detachable cover lens is TLm to the distance of this sense electronics optical element on optical axis, and it meets following condition:
1mm<TLm<20mm。
In another embodiment of the present utility model, this image-taking device is also applied to an air ambient, and the back focal length of this image-taking device in this media environment is PBFm, and the back focal length of this image-taking device in this air ambient is PBFa, and it meets following condition:
|(PBFm-PBFa)|<7μm。
In another embodiment of the present utility model, this image-taking device comprises an optical imagery systems stabilisation.
In another embodiment of the present utility model, when the quantity of these lens of this lens combination is more than two, wherein at least a slice is glass lens.
In another embodiment of the present utility model, the quantity of these lens of this lens combination is more than three and less than seven.
In another embodiment of the present utility model, this sealed unit comprises an annular shim.
In another embodiment of the present utility model, these detachable cover lens can be connected with this housing movably along optical axis.
When TLm meets above-mentioned condition, the miniaturization of image-taking device can be maintained, to be equipped on portable electronic product.
When | (PBFm-PBFa) | when meeting above-mentioned condition, image-taking device can be made all to obtain focusing image in air ambient and in media environment.
When | (Rf-Rr)/(Rf+Rr) | when meeting above-mentioned condition, contribute to the field angle providing image-taking device enough.
Accompanying drawing explanation
Fig. 1 illustrates a kind of image-taking device according to the utility model first embodiment in the schematic diagram of air ambient;
Fig. 2 illustrates a kind of image-taking device according to the utility model first embodiment in the schematic diagram of media environment;
Fig. 3 illustrates a kind of image-taking device according to the utility model second embodiment in the schematic diagram of air ambient;
Fig. 4 illustrates a kind of image-taking device according to the utility model second embodiment in the schematic diagram of media environment;
Fig. 5 illustrates a kind of image-taking device according to the utility model second embodiment in another schematic diagram of media environment;
Fig. 6 illustrates a kind of image-taking device according to the utility model the 3rd embodiment in the schematic diagram of air ambient;
Fig. 7 illustrates a kind of image-taking device according to the utility model the 3rd embodiment in the schematic diagram of media environment;
Fig. 8 illustrates a kind of image-taking device according to the utility model the 4th embodiment in the schematic diagram of air ambient;
Fig. 9 illustrates a kind of image-taking device according to the utility model the 4th embodiment in the schematic diagram of media environment;
Figure 10 illustrates a kind of image-taking device according to the utility model the 5th embodiment in the schematic diagram of air ambient; And
Figure 11 illustrates a kind of image-taking device according to the utility model the 5th embodiment in the schematic diagram of media environment.
[symbol description]
Aperture: 100,200,300,400,500
Infrared ray filtering filter element: 101,201,301,401,501
Cover glass element: 402
Imaging surface: 103,203,303,403,503
Sense electronics optical element: 104,204,304,404,504
First lens: 110,210,310,410,510
Thing side surface: 111,211,311,411,511
Surface, image side: 112,212,312,412,512
Second lens: 120,220,320,420,520
Thing side surface: 121,221,321,421,521
Surface, image side: 122,222,322,422,522
3rd lens: 130,230,330,430,530
Thing side surface: 131,231,331,431,531
Surface, image side: 132,232,332,432,532
4th lens: 140,240,340,440,540
Thing side surface: 141,241,341,441,541
Surface, image side: 142,242,342,442,542
5th lens: 150,250,350,450,550
Thing side surface: 151,251,351,451,551
Surface, image side: 152,252,352,452,552
6th lens: 160,260,360,460,560
Thing side surface: 161,261,361,461,561
Surface, image side: 162,262,362,462,562
7th lens: 270,470,570
Thing side surface: 271,471,571
Surface, image side: 272,472,572
8th lens: 280,580
Thing side surface: 281,581
Surface, image side: 282,582
Shell: 190,290
Housing: 191,291
Detachable cover lens: 192,292a, 292b, 392a, 392b, 492,592a, 592b
Thing side surface: 193,293a, 293b, 393a, 393b, 493,593a, 593b
Image side surface: 194,294a, 294b, 394a, 394b, 494,594a, 594b
Sealed unit: 195
Screwed tooth structure: 195a, 195b
Annular shim: 295a, 295b
HFOVa: the half at the maximum visual angle of image-taking device in air ambient
HFOVm: the half at the maximum visual angle of image-taking device in media environment
FOVa: the maximum visual angle of image-taking device in air ambient
FOVm: the maximum visual angle of image-taking device in media environment
TLm: detachable cover lens thing side surface is to the distance of sense electronics optical element on optical axis
PBFm: the back focal length of image-taking device in media environment
PBFa: the back focal length of image-taking device in air ambient
Rf: the radius-of-curvature of detachable cover lens thing side surface
Rr: the radius-of-curvature on surface, detachable cover lens image side
Dlf: the maximum effective diameter of detachable cover lens thing side surface
Embodiment
A kind of image-taking device, it is applied to air ambient or media environment, and image-taking device comprises lens combination, sense electronics optical element and detachable cover lens.Lens combination comprises at least one lens, and lens have refracting power.Sense electronics optical element is arranged at the imaging surface of lens combination.Detachable cover lens have refracting power.Image-taking device in air ambient, lens combination and sense electronics optical element along optical axis by thing side to image side sequential, or detachable cover lens, lens combination and sense electronics optical element along optical axis by thing side to image side sequential.Image-taking device in media environment, detachable cover lens, lens combination and sense electronics optical element along optical axis by thing side to image side sequential.
In the image-taking device that the utility model provides, detachable cover lens can be arranged on image-taking device or by image-taking device removal.When detachable cover lens are arranged on image-taking device, image-taking device can be applicable in air ambient or media environment.When detachable cover lens are by image-taking device removal, lens combination and the sense electronics optical element of image-taking device can be applicable in air ambient.Whereby, be conducive to maintaining image quality that is easy-to-use and that do not affect by environment change.
Air ambient described in leading portion refers to the environment of air or vacuum, and media environment refers to the environment beyond air and vacuum, as the environment etc. in water, obtains excellent image quality so as to being conducive to image-taking device environment in water.
Specifically, the image-taking device that the utility model provides also can comprise shell, its with for lens combination and sense electronics optical element disposed therein, and shell comprises housing, aforesaid detachable cover lens and sealed unit, and wherein sealed unit is in order to housing and the detachable cover lens of being tightly connected.
In the image-taking device that the utility model provides, sealed unit can comprise annular shim.Whereby, be conducive to maintaining airtight conditions to enter in image-taking device to prevent medium.Moreover sealed unit can comprise latch mechanism, it can be two screwed tooth structures, is arranged at housing and detachable cover lens respectively, and the corresponding engagement of two screwed tooth structures is with housing and the detachable cover lens of being tightly connected.Whereby, be conducive to image-taking device and maintain locking state to obtain stable image quality.Certainly, annular shim can coordinate with latch mechanism simultaneously, more can guarantee that housing and detachable cover lens are tightly connected.
In the image-taking device that the utility model provides, detachable cover lens and lens combination can spacing distance respectively in air ambient and in media environment on optical axis different; That is, through adjustment detachable cover lens and the spacing distance of lens combination on optical axis, image-taking device can be made to be applied in different environment good focusing and image quality are all provided.
In addition, in the image-taking device that the utility model provides, detachable cover lens are can be connected with housing movably along optical axis, so as to adjusting itself and the spacing distance of lens combination on optical axis.Specifically, detachable cover lens can pass through the screwed tooth structure that arrange corresponding to housing, it is moved along optical axis for user, and change detachable cover lens and the spacing distance of lens combination on optical axis, under image-taking device is inscribed before not replacing or do not dismantle detachable cover lens, focus in air ambient and in media environment respectively.Whereby, be conducive to maintaining image quality that is easy-to-use and that do not affect by environment change.
In the image-taking device that the utility model provides, detachable cover lens can have positive refracting power.Whereby, suitably can adjust the positive refracting power intensity of detachable cover lens, contribute to the total length shortening image-taking device.
In the image-taking device that the utility model provides, the quantity of the detachable cover lens of image-taking device can be at least two, and two detachable cover lens are alternatively connected with housing.Wherein detachable cover lens can be applicable in media environment, and another detachable cover lens can be applicable in air ambient.Whereby, be conducive to maintaining image quality that is easy-to-use and that do not affect by environment change.Moreover at least one can be curved month type and has negative refracting power in detachable cover lens and another detachable cover lens, wherein in the curved month type thing side surface that refers to lens and surface, image side, a surface is convex surface, and another surface is concave surface.Whereby, contribute to expanding visual angle and increasing image capture scope.
In the image-taking device that the utility model provides, detachable cover lens can be plastic cement material, are plastic lens.Whereby, effectively production cost can be reduced.
In the image-taking device that the utility model provides, the quantity of the lens of lens combination can be more than four and less than nine or more than three and less than seven.Whereby, the miniaturization of image-taking device and excellent image quality can be maintained.
Moreover in the lens of lens combination, at least a slice can be glass material, is glass lens.Whereby, the degree of freedom of image-taking device refracting power configuration can be increased.
In the image-taking device that the utility model provides, can without relative movement between the lens of lens combination and sense electronics optical element.Whereby, lens can be reduced and move optical axis contraposition deviation between caused each lens.
In the image-taking device that the utility model provides, optical imagery systems stabilisation can be comprised.Whereby, to make user aprowl obtain stable image quality.
Image-taking device is in media environment, and detachable cover lens thing side surface is TLm to the distance of sense electronics optical element on optical axis, and it meets following condition: TLm<40mm.Whereby, the miniaturization of image-taking device can be maintained, to be equipped on portable electronic product.Preferably, it meets following condition: 1mm<TLm<20mm.
The back focal length of image-taking device in media environment is PBFm, and the back focal length of image-taking device in air ambient is PBFa, and it meets following condition: | (PBFm-PBFa) | <7 μm.Whereby, image-taking device can be made all to obtain focusing image in air ambient and in media environment.Preferably, it meets following condition: | (PBFm-PBFa) | <5 μm.
The maximum visual angle of image-taking device in air ambient is FOVa, and the maximum visual angle of image-taking device in media environment is FOVm, and it meets following condition: 1.20<FOVa/FOVm.Whereby, the image-taking device had with great visual angle is applied in media environment.
The maximum visual angle of image-taking device in air ambient is FOVa, and it meets following condition: 100 degree of <FOVa.Whereby, make image-taking device have larger visual angle and increase image capture scope.
The maximum effective diameter of detachable cover lens thing side surface is Dlf, and it meets following condition: Dlf<35mm.Whereby, the miniaturization of image-taking device can be maintained, to be equipped on portable electronic product.
The radius-of-curvature of detachable cover lens thing side surface is Rf, and the radius-of-curvature on surface, detachable cover lens image side is Rr, and it meets following condition: 0.1<| (Rf-Rr)/(Rf+Rr) |.Whereby, the field angle providing image-taking device enough is contributed to.
In the image-taking device that the utility model provides, the material of lens and detachable cover lens can be plastic cement or glass.When the material of lens or detachable cover lens is plastic cement, effectively production cost can be reduced.The another material when lens or detachable cover lens is glass, then can increase the degree of freedom of image-taking device refracting power configuration.In addition, thing side surface in image-taking device and surface, image side can be aspheric surface (ASP), aspheric surface easily can be made into the shape beyond sphere, obtain more controlled variable, in order to cut down aberration, and then the number that reduction lens use, therefore effectively can reduce the total length of the utility model image-taking device.
Moreover, in the image-taking device that the utility model provides, if when lens or detachable cover lens surface are convex surface and do not define this convex surface position, then represent that these lens or detachable cover lens surface are convex surface in dipped beam axle place; If when lens or detachable cover lens surface are concave surface and do not define this concave surface position, then represent that these lens or detachable cover lens surface are concave surface in dipped beam axle place.In the image-taking device that the utility model provides, if lens or detachable cover lens have positive refracting power or negative refracting power, or the focal length of lens or detachable cover lens, all refer to refracting power or the focal length at lens or detachable cover lens dipped beam axle place.
In addition, in the utility model image-taking device, at least one diaphragm can be set on demand, to reduce parasitic light, contribute to promoting image quality.
The imaging surface (ImageSurface) of image-taking device of the present utility model, according to the difference of the sense electronics optical element of its correspondence, can be a plane or has the curved surface of arbitrary curvature, refer to especially concave surface towards toward thing side to curved surface.
In image-taking device of the present utility model, aperture configuration can be preposition aperture or mid-aperture, and wherein preposition aperture meaning and aperture are arranged between object and the first lens, and mid-aperture then represents that aperture is arranged between the first lens and imaging surface.If aperture is preposition aperture, the outgoing pupil (ExitPupil) of image-taking device and imaging surface can be made to produce longer distance, make it have the heart far away (Telecentric) effect, and CCD or CMOS that can increase sense electronics optical element receives the efficiency of image; If mid-aperture, contribute to the field angle of expansion system, make image-taking device have the advantage of wide-angle lens.
Image-taking device of the present utility model has the characteristic of excellent lens error correction and good image quality concurrently, also can many-side be applied in the electronic installation such as three-dimensional (3D) image capture, digital still camera, mobile product, numerical digit flat board, intelligent TV, network monitoring device, somatic sensation television game machine, driving recorder, reversing developing apparatus, industrial robot and Wearable product.
Preferably, image-taking device can comprise lens barrel (BarrelMember), supportive device (HolderMember) or its combination further.
According to above-mentioned embodiment, below propose specific embodiment and coordinate accompanying drawing to be described in detail.
< first embodiment >
Please refer to Fig. 1 and Fig. 2, wherein Fig. 1 illustrates a kind of image-taking device according to the utility model first embodiment in the schematic diagram of air ambient, and Fig. 2 illustrates a kind of image-taking device according to the utility model first embodiment in the schematic diagram of media environment.The image-taking device of the first embodiment comprises lens combination (not another label), sense electronics optical element 104 and shell 190.Shell 190 comprises housing 191, detachable cover lens 192 and sealed unit 195.
As shown in Figure 1, in the first embodiment, shell 190 is a dismountable case, and it can by image-taking device removal, and when shell 190 removal, lens combination and the sense electronics optical element 104 of image-taking device are applied in air ambient.As shown in Figure 2, when image-taking device comprises shell 190, image-taking device is applied in media environment, and wherein the media environment of the first embodiment refers to the environment of water.
Specifically, lens combination sequentially comprises the first lens 110 by thing side to image side, second lens 120, 3rd lens 130, aperture 100, 4th lens 140, 5th lens 150, 6th lens 160, infrared ray filtering filter element (IR-cutfilter) 101 and imaging surface 103, and sense electronics optical element 104 is arranged at the imaging surface 103 of lens combination, the lens wherein in lens combination with refracting power are six (110-160), between the wantonly two adjacent lens with refracting power, all there is a spacing distance, and lens (110-160) in lens combination and between sense electronics optical element 104 without relative movement.
First lens 110 have negative refracting power, and are plastic cement material, and its thing side surface 111 is convex surface, and its surface, image side 112 is concave surface, and is all aspheric surface.
Second lens 120 have positive refracting power, and are plastic cement material, and its thing side surface 121 is concave surface, and its surface, image side 122 is convex surface, and is all aspheric surface.
3rd lens 130 have positive refracting power, and are plastic cement material, and its thing side surface 131 is concave surface, and its surface, image side 132 is convex surface, and is all aspheric surface.
4th lens 140 have positive refracting power, and are plastic cement material, and its thing side surface 141 is convex surface, and its surface, image side 142 is convex surface, and is all aspheric surface.
5th lens 150 have negative refracting power, and are plastic cement material, and its thing side surface 151 is concave surface, and its surface, image side 152 is convex surface, and is all aspheric surface.
6th lens 160 have positive refracting power, and are plastic cement material, and its thing side surface 161 is convex surface, and its surface, image side 162 is concave surface, and is all aspheric surface.
Infrared ray filtering filter element 101 is glass material, and it to be arranged between the 6th lens 160 and imaging surface 103 and not to affect the focal length of lens combination.
The aspheric fitting equation of above-mentioned each lens is expressed as follows:
X ( Y ) = ( Y 2 / R ) / ( 1 + s q r t ( 1 - ( 1 + k ) &times; ( Y / R ) 2 ) ) + &Sigma; i ( A i ) &times; ( Y i ) ;
Wherein:
X: in aspheric surface, distance optical axis is the point of Y, its be tangential on the relative distance of intersection point tangent plane on aspheric surface optical axis;
Y: the point in aspheric curve and the vertical range of optical axis;
R: radius-of-curvature;
K: conical surface coefficient; And
Ai: the i-th rank asphericity coefficient.
Moreover coordinate with reference to Fig. 2 known, when image-taking device is applied in media environment, the detachable cover lens 192 of shell 190 are arranged at the thing side of the first lens 110 (namely between object and the first lens 110).Detachable cover lens 192 have positive refracting power, and are glass material, and its thing side surface 193 is convex surface, and its surface, image side 194 is concave surface, and is all sphere.
In addition, sealed unit 195 comprises latch mechanism (non-label), wherein latch mechanism comprises two screwed tooth structure 195a, 195b, it is arranged on housing 191 and detachable cover lens 192 respectively, and the corresponding engagement of two screwed tooth structure 195a, 195b is with housing 191 and the detachable cover lens 192 of being tightly connected.
In the image-taking device of the first embodiment, the half at the maximum visual angle of image-taking device in air ambient is HFOVa, and the half at the maximum visual angle of image-taking device in media environment is HFOVm, and its numerical value is as follows: HFOVa=68.5 degree; And HFOVm=45.2 degree.
In the image-taking device of the first embodiment, the maximum visual angle of image-taking device in air ambient is FOVa, and it meets following condition: FOVa=137.0 degree.
In the image-taking device of the first embodiment, the maximum visual angle of image-taking device in air ambient is FOVa, and the maximum visual angle of image-taking device in media environment is FOVm, and it meets following condition: FOVa/FOVm=1.52.
In the image-taking device of the first embodiment, the distance of detachable cover lens thing side surface 193 to sense electronics optical element 104 on optical axis is TLm, and it meets following condition: TLm=12.119mm.
In the image-taking device of the first embodiment, the back focal length of image-taking device in media environment is PBFm, and the back focal length of image-taking device in air ambient is PBFa, and it meets following condition: | (PBFm-PBFa) |=0.794 μm.
In the image-taking device of the first embodiment, the radius-of-curvature of detachable cover lens thing side surface 193 is Rf, the radius-of-curvature on surface, detachable cover lens image side 194 is Rr, and it meets following condition: | (Rf-Rr)/(Rf+Rr) |=0.47.
In the image-taking device of the first embodiment, the maximum effective diameter of detachable cover lens thing side surface 193 is Dlf, and it meets following condition: Dlf=13.56mm.
Coordinate again with reference to lower list 1A, table 1B, table 2A and table 2B.
Table 1A is that the air ambient of Fig. 1 first embodiment configures detailed structured data, table 2A is that the media environment of Fig. 2 first embodiment configures detailed structured data, wherein the unit of radius-of-curvature, thickness and focal length is mm, and surperficial 0-18 sequentially represents by the surface of thing side to image side.Table 1B is the aspherical surface data in the air ambient configuration of the first embodiment, table 2B is the aspherical surface data in the media environment configuration of the first embodiment, wherein, k shows the conical surface coefficient in aspheric curve equation, and A4-A14 then represents each surperficial 4-14 rank asphericity coefficient.In addition, following embodiment form is the schematic diagram of corresponding each embodiment, in form the definition of data all with the table 1A of the first embodiment, show 1B, show 2A and show the definition of 2B identical, do not add at this and repeat.
< second embodiment >
Please refer to Fig. 3, Fig. 4 and Fig. 5, wherein Fig. 3 illustrates a kind of image-taking device according to the utility model second embodiment in the schematic diagram of air ambient, Fig. 4 illustrates a kind of image-taking device according to the utility model second embodiment in the schematic diagram of media environment, and Fig. 5 illustrates a kind of image-taking device according to the utility model second embodiment in another schematic diagram of media environment.The image-taking device of the second embodiment comprises lens combination (not another label), sense electronics optical element 204 and shell 290.Shell 290 comprises housing 291, two detachable cover lens 292a, 292b and two sealed unit (non-label).
As shown in Figure 3, when detachable cover lens 292a is arranged on image-taking device, image-taking device is applied in air ambient.As shown in Figure 4, detachable cover lens 292a is for can be connected with housing 291 movably along optical axis, when image-taking device is applied to media environment, can pass through adjustment detachable cover lens 292a and the spacing distance of lens combination on optical axis, make image-taking device be applied in media environment; That is, detachable cover lens 292a and the lens combination spacing distance respectively in air ambient in (as Fig. 3) and media environment on optical axis is different, namely adjustment detachable cover lens 292a and the spacing distance of lens combination on optical axis is through, make image-taking device under the prerequisite not replacing or do not dismantle detachable cover lens 292a, can focus in air ambient and media environment.Again as shown in Figure 5, when detachable cover lens 292b be arranged on image-taking device (is replaced into detachable cover lens 292b by detachable cover lens 292a) time, image-taking device is applied in media environment.Wherein the media environment of the present embodiment refers to the environment of water.
Specifically, lens combination sequentially comprises the first lens 210, second lens 220, the 3rd lens 230, the 4th lens 240, aperture 200, the 5th lens 250, the 6th lens 260, the 7th lens 270, the 8th lens 280, infrared ray filtering filter element 201 and imaging surface 203 by thing side to image side, and sense electronics optical element 204 is arranged at the imaging surface 203 of lens combination, the lens wherein in lens combination with refracting power are eight (210-280), and lens (210-280) in lens combination and between sense electronics optical element 204 without relative movement.
First lens 210 have negative refracting power, and are glass material, and its thing side surface 211 is convex surface, and its surface, image side 212 is concave surface, and is all sphere.
Second lens 220 have negative refracting power, and are glass material, and its thing side surface 221 is concave surface, and its surface, image side 222 is concave surface, and is all sphere.
3rd lens 230 have positive refracting power, and are glass material, and its thing side surface 231 is convex surface, and its surface, image side 232 is convex surface, and is all sphere.
4th lens 240 have positive refracting power, and are glass material, and its thing side surface 241 is concave surface, and its surface, image side 242 is convex surface, and is all sphere.
5th lens 250 have positive refracting power, and are glass material, and its thing side surface 251 is convex surface, and its surface, image side 252 is convex surface, and is all sphere.
6th lens 260 have negative refracting power, and are glass material, and its thing side surface 261 is concave surface, and its surface, image side 262 is concave surface, and is all sphere.
7th lens 270 have positive refracting power, and are glass material, and its thing side surface 271 is convex surface, and its surface, image side 272 is concave surface, and is all sphere.
8th lens 280 have positive refracting power, and are plastic cement material, and its thing side surface 281 is convex surface, and its surface, image side 282 is convex surface, and is all aspheric surface.
Infrared ray filtering filter element 201 is glass material, and it to be arranged between the 8th lens 280 and imaging surface 203 and not to affect the focal length of lens combination.
Moreover coordinate with reference to Fig. 3 and Fig. 4 known, when image-taking device is applied in air ambient and media environment, detachable cover lens 292a is arranged at the thing side (namely between object and the first lens 210) of the first lens 210.Detachable cover lens 292a is that curved month type has negative refracting power, and is glass material, and its thing side surface 293a is convex surface, and its surface, image side 294a is concave surface, and is all sphere.
Coordinate with reference to Fig. 5 known, when image-taking device is applied in media environment, detachable cover lens 292b is arranged at the thing side of the first lens 210.Detachable cover lens 292b is that curved month type has negative refracting power, and is plastic cement material, and its thing side surface 293b is convex surface, and its surface, image side 294b is concave surface, and is all sphere.
In addition, sealed unit (non-label) comprises two annular shim 295a, 295b, and it is arranged at detachable cover lens 292a, 292b respectively, and respectively in order to two detachable cover lens 292a, 292b and the housing 291 of being tightly connected.
Coordinate with reference to lower list 3A, table 3B, table 4A, table 4B, table 5A and table 5B, wherein showing 3A is that the air ambient of Fig. 3 second embodiment configures detailed structured data, table 3B is the aspherical surface data in the air ambient configuration of the second embodiment, table 4A is the structured data that media environment configuration (arranging detachable cover lens 292a) of Fig. 4 second embodiment is detailed, table 4B is the aspherical surface data in media environment configuration (arranging detachable cover lens 292a) of the second embodiment, table 5A is the structured data that media environment configuration (arranging detachable cover lens 292b) of Fig. 5 second embodiment is detailed, table 5B is the aspherical surface data in media environment configuration (arranging detachable cover lens 292b) of the second embodiment.
In second embodiment, aspheric fitting equation represents the form as the first embodiment.In addition, the definition of following table parameter is all identical with the first embodiment, and not in this to go forth.
Cooperation table 3A, table 3B, table 4A, table 4B, table 5A and table 5B can extrapolate following data:
< the 3rd embodiment >
Please refer to Fig. 6 and Fig. 7, wherein Fig. 6 illustrates a kind of image-taking device according to the utility model the 3rd embodiment in the schematic diagram of air ambient, and Fig. 7 illustrates a kind of image-taking device according to the utility model the 3rd embodiment in the schematic diagram of media environment.The image-taking device of the 3rd embodiment comprises lens combination (not another label), sense electronics optical element 304 and two detachable cover lens 392a, 392b.
As shown in Figure 6, when detachable cover lens 392a is arranged on image-taking device, image-taking device is applied in air ambient.As shown in Figure 7, when detachable cover lens 392b be arranged on image-taking device (is replaced into detachable cover lens 392b by detachable cover lens 392a) time, image-taking device is applied in media environment, and wherein the media environment of the present embodiment refers to the environment of water.
Specifically, lens combination sequentially comprises the first lens 310 by thing side to image side, second lens 320, 3rd lens 330, aperture 300, 4th lens 340, 5th lens 350, 6th lens 360, infrared ray filtering filter element 301 and imaging surface 303, and sense electronics optical element 304 is arranged at the imaging surface 303 of lens combination, the lens wherein in lens combination with refracting power are six (310-360), between the wantonly two adjacent lens with refracting power, all there is a spacing distance, and lens (310-360) in lens combination and between sense electronics optical element 304 without relative movement.
First lens 310 have negative refracting power, and are plastic cement material, and its thing side surface 311 is convex surface, and its surface, image side 312 is concave surface, and is all aspheric surface.
Second lens 320 have positive refracting power, and are plastic cement material, and its thing side surface 321 is concave surface, and its surface, image side 322 is convex surface, and is all aspheric surface.
3rd lens 330 have positive refracting power, and are plastic cement material, and its thing side surface 331 is concave surface, and its surface, image side 332 is convex surface, and is all aspheric surface.
4th lens 340 have positive refracting power, and are plastic cement material, and its thing side surface 341 is convex surface, and its surface, image side 342 is convex surface, and is all aspheric surface.
5th lens 350 have negative refracting power, and are plastic cement material, and its thing side surface 351 is concave surface, and its surface, image side 352 is convex surface, and is all aspheric surface.
6th lens 360 have positive refracting power, and are plastic cement material, and its thing side surface 361 is convex surface, and its surface, image side 362 is concave surface, and is all aspheric surface.
Infrared ray filtering filter element 301 is glass material, and it to be arranged between the 6th lens 360 and imaging surface 303 and not to affect the focal length of lens combination.
Moreover coordinate with reference to Fig. 6 known, when image-taking device is applied in air ambient, detachable cover lens 392a is arranged at the thing side (namely between object and the first lens 310) of the first lens 310.Detachable cover lens 392a is that curved month type has negative refracting power, and is plastic cement material, and its thing side surface 393a is convex surface, and its surface, image side 394a is concave surface, and is all aspheric surface.
Coordinate with reference to Fig. 7 known, when image-taking device is applied in media environment, detachable cover lens 392b is arranged at the thing side of the first lens 310.Detachable cover lens 392b is that curved month type has negative refracting power, and is plastic cement material, and its thing side surface 393b is convex surface, and its surface, image side 394b is concave surface, and is all aspheric surface.
Coordinate with reference to lower list 6A, table 6B, table 7A and table 7B, wherein showing 6A is that the air ambient of Fig. 6 the 3rd embodiment configures detailed structured data, table 6B is the aspherical surface data in the air ambient configuration of the 3rd embodiment, table 7A is that the media environment of Fig. 7 the 3rd embodiment configures detailed structured data, and table 7B is the aspherical surface data in the media environment configuration of the 3rd embodiment.
In 3rd embodiment, aspheric fitting equation represents the form as the first embodiment.In addition, the definition of following table parameter is all identical with the first embodiment, and not in this to go forth.
Cooperation table 6A, table 6B, table 7A and table 7B can extrapolate following data:
< the 4th embodiment >
Please refer to Fig. 8 and Fig. 9, wherein Fig. 8 illustrates a kind of image-taking device according to the utility model the 4th embodiment in the schematic diagram of air ambient, and Fig. 9 illustrates a kind of image-taking device according to the utility model the 4th embodiment in the schematic diagram of media environment.The image-taking device of the 4th embodiment comprises lens combination (not another label), sense electronics optical element 404 and detachable cover lens 492.
As shown in Figure 8, when detachable cover lens 492 are by image-taking device removal, lens combination and the sense electronics optical element 404 of image-taking device are applied in air ambient.As shown in Figure 9, when detachable cover lens 492 are arranged on image-taking device, image-taking device is applied in media environment, and wherein the media environment of the present embodiment refers to the environment of water.
Specifically, lens combination sequentially comprises the first lens 410 by thing side to image side, second lens 420, 3rd lens 430, aperture 400, 4th lens 440, 5th lens 450, 6th lens 460, 7th lens 470, infrared ray filtering filter element 401, cover glass element 402 and imaging surface 403, and sense electronics optical element 404 is arranged at the imaging surface 403 of lens combination, the lens wherein in lens combination with refracting power are seven (410-470), between the wantonly two adjacent lens with refracting power, all there is a spacing distance, and lens (410-470) in lens combination and between sense electronics optical element 404 without relative movement.
First lens 410 have negative refracting power, and are glass material, and its thing side surface 411 is convex surface, and its surface, image side 412 is concave surface, and is all sphere.
Second lens 420 have positive refracting power, and are glass material, and its thing side surface 421 is concave surface, and its surface, image side 422 is convex surface, and is all sphere.
3rd lens 430 have positive refracting power, and are glass material, and its thing side surface 431 is convex surface, and its surface, image side 432 is plane, and wherein thing side surface 431 is sphere.
4th lens 440 have positive refracting power, and are glass material, and its thing side surface 441 is convex surface, and its surface, image side 442 is convex surface, and is all sphere.
5th lens 450 have negative refracting power, and are glass material, and its thing side surface 451 is concave surface, and its surface, image side 452 is concave surface, and is all sphere.
6th lens 460 have positive refracting power, and are glass material, and its thing side surface 461 is convex surface, and its surface, image side 462 is convex surface, and is all sphere.
7th lens 470 have positive refracting power, and are glass material, and its thing side surface 471 is convex surface, and its surface, image side 472 is convex surface, and is all sphere.
Infrared ray filtering filter element 401 and cover glass element 402 are all glass material, and it to be sequentially arranged between the 7th lens 470 and imaging surface 403 and neither to affect the focal length of lens combination.
Moreover coordinate with reference to Fig. 9 known, when image-taking device is applied in media environment, detachable cover lens 492 are arranged at the thing side (namely between object and the first lens 410) of the first lens 410.Detachable cover lens 492 have positive refracting power, and are glass material, and its thing side surface 493 is convex surface, and its surface, image side 494 is concave surface, and is all sphere.
Coordinate with reference to lower list 8 and table 9, wherein table 8 is that the air ambient of Fig. 8 the 4th embodiment configures detailed structured data, and table 9 is that the media environment of Fig. 9 the 4th embodiment configures detailed structured data.
In 4th embodiment, the definition of following table parameter is all identical with the first embodiment, and not in this to go forth.
Cooperation table 8 and table 9 can extrapolate following data:
< the 5th embodiment >
Please refer to Figure 10 and Figure 11, wherein Figure 10 illustrates a kind of image-taking device according to the utility model the 5th embodiment in the schematic diagram of air ambient, and Figure 11 illustrates a kind of image-taking device according to the utility model the 5th embodiment in the schematic diagram of media environment.The image-taking device of the 5th embodiment comprises lens combination (not another label), sense electronics optical element 504 and two detachable cover lens 592a, 592b.
As shown in Figure 10, when detachable cover lens 592a is arranged on image-taking device, image-taking device is applied in air ambient.As shown in Figure 11, when detachable cover lens 592b be arranged on image-taking device (is replaced into detachable cover lens 592b by detachable cover lens 592a) time, image-taking device is applied in media environment, and wherein the media environment of the present embodiment refers to the environment of water.
Specifically, lens combination sequentially comprises the first lens 510, second lens 520, the 3rd lens 530, the 4th lens 540, aperture 500, the 5th lens 550, the 6th lens 560, the 7th lens 570, the 8th lens 580, infrared ray filtering filter element 501 and imaging surface 503 by thing side to image side, and sense electronics optical element 504 is arranged at the imaging surface 503 of lens combination, the lens wherein in lens combination with refracting power are eight (510-580), and lens (510-580) in lens combination and between sense electronics optical element 504 without relative movement.
First lens 510 have negative refracting power, and are glass material, and its thing side surface 511 is convex surface, and its surface, image side 512 is concave surface, and is all sphere.
Second lens 520 have negative refracting power, and are glass material, and its thing side surface 521 is concave surface, and its surface, image side 522 is concave surface, and is all sphere.
3rd lens 530 have positive refracting power, and are glass material, and its thing side surface 531 is convex surface, and its surface, image side 532 is convex surface, and is all sphere.
4th lens 540 have positive refracting power, and are glass material, and its thing side surface 541 is concave surface, and its surface, image side 542 is convex surface, and is all sphere.
5th lens 550 have positive refracting power, and are glass material, and its thing side surface 551 is convex surface, and its surface, image side 552 is convex surface, and is all sphere.
6th lens 560 have negative refracting power, and are glass material, and its thing side surface 561 is concave surface, and its surface, image side 562 is concave surface, and is all sphere.
7th lens 570 have positive refracting power, and are glass material, and its thing side surface 571 is convex surface, and its surface, image side 572 is convex surface, and is all sphere.
8th lens 580 have positive refracting power, and are plastic cement material, and its thing side surface 581 is convex surface, and its surface, image side 582 is convex surface, and is all aspheric surface.
Infrared ray filtering filter element 501 is glass material, and it to be arranged between the 8th lens 580 and imaging surface 503 and not to affect the focal length of lens combination.
Moreover coordinate with reference to Figure 10 known, when image-taking device is applied in air ambient, detachable cover lens 592a is arranged at the thing side (namely between object and the first lens 510) of the first lens 510.Detachable cover lens 592a is that curved month type has negative refracting power, and is plastic cement material, and its thing side surface 593a is convex surface, and its surface, image side 594a is concave surface, and is all sphere.
Coordinate with reference to Figure 11 known, when image-taking device is applied in media environment, detachable cover lens 592b is arranged at the thing side of the first lens 510.Detachable cover lens 592b has positive refracting power, and is plastic cement material, and its thing side surface 593b is convex surface, and its surface, image side 594b is concave surface, and is all sphere.
Coordinate with reference to lower list 10A, table 10B, table 11A and table 11B, wherein showing 10A is that the air ambient of Figure 10 the 5th embodiment configures detailed structured data, table 10B is the aspherical surface data in the air ambient configuration of the 5th embodiment, table 11A is that the media environment of Figure 11 the 5th embodiment configures detailed structured data, and table 11B is the aspherical surface data in the media environment configuration of the 5th embodiment.
In 5th embodiment, aspheric fitting equation represents the form as the first embodiment.In addition, the definition of following table parameter is all identical with the first embodiment, and not in this to go forth.
Cooperation table 10A, table 10B, table 11A and table 11B can extrapolate following data:
Although the utility model discloses as above with embodiment; so itself and be not used to limit the utility model; anyly be familiar with this those skilled in the art; not departing from spirit and scope of the present utility model; when being used for a variety of modifications and variations, the scope that therefore protection domain of the present utility model ought define depending on appending claims is as the criterion.

Claims (28)

1. an image-taking device, is characterized in that, it is applied to an air ambient or a media environment, and this image-taking device comprises:
One lens combination, comprises at least one lens, and these lens have refracting power;
One sense electronics optical element, it is arranged at an imaging surface of this lens combination; And
One detachable cover lens, it has refracting power;
Wherein, this image-taking device in this air ambient, this lens combination and this sense electronics optical element along optical axis by thing side to image side sequential, or these detachable cover lens, this lens combination and this sense electronics optical element along optical axis by thing side to image side sequential;
Wherein, this image-taking device in this media environment, these detachable cover lens, this lens combination and this sense electronics optical element along optical axis by thing side to image side sequential;
Wherein, this image-taking device is in this media environment, the thing side surface of these detachable cover lens is TLm to the distance of this sense electronics optical element on optical axis, the back focal length of this image-taking device in this media environment is PBFm, the back focal length of this image-taking device in this air ambient is PBFa, and it meets following condition:
TLm<40mm; And
|(PBFm-PBFa)|<7μm。
2. image-taking device according to claim 1, is characterized in that, this image-taking device is in this media environment, and the thing side surface of these detachable cover lens is TLm to the distance of this sense electronics optical element on optical axis, and it meets following condition:
1mm<TLm<20mm。
3. image-taking device according to claim 1, is characterized in that, the back focal length of this image-taking device in this media environment is PBFm, and the back focal length of this image-taking device in this air ambient is PBFa, and it meets following condition:
|(PBFm-PBFa)|<5μm。
4. image-taking device according to claim 1, is characterized in that, the maximum visual angle of this image-taking device in this air ambient is FOVa, and the maximum visual angle of this image-taking device in this media environment is FOVm, and it meets following condition:
1.20<FOVa/FOVm。
5. image-taking device according to claim 1, is characterized in that, the maximum visual angle of this image-taking device in this air ambient is FOVa, and it meets following condition:
100 degree of <FOVa.
6. image-taking device according to claim 1, is characterized in that, the maximum effective diameter of the thing side surface of these detachable cover lens is Dlf, and it meets following condition:
Dlf<35mm。
7. image-taking device according to claim 1, is characterized in that, the quantity of these lens of this lens combination is more than four and less than nine.
8. image-taking device according to claim 1, is characterized in that, without relative movement between these lens of this lens combination and this sense electronics optical element.
9. an image-taking device, is characterized in that, it is applied to a media environment, and this image-taking device comprises:
One lens combination, comprises at least one lens, and these lens have refracting power;
One sense electronics optical element, it is arranged at an imaging surface of this lens combination; And
One shell, with for this lens combination and this sense electronics optical element disposed therein, this shell comprises: a housing; At least one detachable cover lens, it has refracting power, and these detachable cover lens, this lens combination and this sense electronics optical element along optical axis by thing side to image side sequential; And a sealed unit, in order to this housing and this detachable cover lens of being tightly connected;
Wherein, this image-taking device is in this media environment, the thing side surface of these detachable cover lens is TLm to the distance of this sense electronics optical element on optical axis, the radius-of-curvature of the thing side surface of these detachable cover lens is Rf, the radius-of-curvature on the surface, image side of these detachable cover lens is Rr, and it meets following condition:
TLm<40mm; And
0.1<|(Rf-Rr)/(Rf+Rr)|。
10. image-taking device according to claim 9, is characterized in that, the maximum effective diameter of the thing side surface of these detachable cover lens is Dlf, and it meets following condition:
Dlf<35mm。
11. image-taking devices according to claim 9, is characterized in that, this sealed unit comprises a latch mechanism.
12. image-taking devices according to claim 9, is characterized in that, these detachable cover lens have positive refracting power.
13. image-taking devices according to claim 12, is characterized in that, when this detachable cover lens removal, this lens combination and this sense electronics optical element of this image-taking device are applied to an air ambient.
14. image-taking devices according to claim 9, is characterized in that, the quantity of these detachable cover lens of this image-taking device is at least two, and two these detachable cover lens are alternatively connected with this housing.
15. image-taking devices according to claim 14, is characterized in that, these detachable cover lens at least one are curved month type and have negative refracting power.
16. image-taking devices according to claim 9, is characterized in that, this image-taking device is also applied to an air ambient, these detachable cover lens and the spacing distance of this lens combination respectively in this air ambient and in this media environment on optical axis different.
17. image-taking devices according to claim 9, is characterized in that, these detachable cover lens are plastic lens.
18. image-taking device according to claim 9, is characterized in that, without relative movement between these lens of this lens combination and this sense electronics optical element.
19. image-taking devices according to claim 9, is characterized in that, this media environment refers to the environment of water.
20. image-taking devices according to claim 9, it is characterized in that, this image-taking device is also applied to an air ambient, and the maximum visual angle of this image-taking device in this air ambient is FOVa, the maximum visual angle of this image-taking device in this media environment is FOVm, and it meets following condition:
1.20<FOVa/FOVm。
21. image-taking devices according to claim 9, is characterized in that, this image-taking device is also applied to an air ambient, and the maximum visual angle of this image-taking device in this air ambient is FOVa, and it meets following condition:
100 degree of <FOVa.
22. image-taking devices according to claim 9, is characterized in that, this image-taking device is in this media environment, and the thing side surface of these detachable cover lens is TLm to the distance of this sense electronics optical element on optical axis, and it meets following condition:
1mm<TLm<20mm。
23. image-taking devices according to claim 12, it is characterized in that, this image-taking device is also applied to an air ambient, and the back focal length of this image-taking device in this media environment is PBFm, the back focal length of this image-taking device in this air ambient is PBFa, and it meets following condition:
|(PBFm-PBFa)|<7μm。
24. image-taking devices according to claim 9, is characterized in that, this image-taking device comprises an optical imagery systems stabilisation.
25. image-taking devices according to claim 9, is characterized in that, when the quantity of these lens of this lens combination is more than two, wherein at least a slice is glass lens.
26. image-taking devices according to claim 9, is characterized in that, the quantity of these lens of this lens combination is more than three and less than seven.
27. image-taking devices according to claim 9, is characterized in that, this sealed unit comprises an annular shim.
28. image-taking device according to claim 9, is characterized in that, these detachable cover lens can be connected with this housing movably along optical axis.
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CN106772939A (en) * 2016-12-27 2017-05-31 东莞市宇瞳光学科技股份有限公司 Small-sized super large aperture tight shot
CN108107545A (en) * 2017-09-29 2018-06-01 玉晶光电(厦门)有限公司 Optical imaging lens
CN108227146A (en) * 2017-12-29 2018-06-29 玉晶光电(厦门)有限公司 Optical imaging lens
CN110023809A (en) * 2016-11-28 2019-07-16 柯尼卡美能达株式会社 Imaging optical system, lens unit and photographic device
CN110908088A (en) * 2019-12-27 2020-03-24 瑞声通讯科技(常州)有限公司 Image pickup optical lens

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110023809A (en) * 2016-11-28 2019-07-16 柯尼卡美能达株式会社 Imaging optical system, lens unit and photographic device
CN110023809B (en) * 2016-11-28 2021-10-22 柯尼卡美能达株式会社 Imaging optical system, lens unit, and imaging device
CN106772939A (en) * 2016-12-27 2017-05-31 东莞市宇瞳光学科技股份有限公司 Small-sized super large aperture tight shot
CN108107545A (en) * 2017-09-29 2018-06-01 玉晶光电(厦门)有限公司 Optical imaging lens
CN108107545B (en) * 2017-09-29 2020-02-04 玉晶光电(厦门)有限公司 Optical imaging lens
CN108227146A (en) * 2017-12-29 2018-06-29 玉晶光电(厦门)有限公司 Optical imaging lens
CN108227146B (en) * 2017-12-29 2020-02-11 玉晶光电(厦门)有限公司 Optical imaging lens
CN110908088A (en) * 2019-12-27 2020-03-24 瑞声通讯科技(常州)有限公司 Image pickup optical lens
CN110908088B (en) * 2019-12-27 2021-07-30 诚瑞光学(常州)股份有限公司 Image pickup optical lens

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