CN106168707A - A kind of imaging device - Google Patents
A kind of imaging device Download PDFInfo
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- CN106168707A CN106168707A CN201610517419.3A CN201610517419A CN106168707A CN 106168707 A CN106168707 A CN 106168707A CN 201610517419 A CN201610517419 A CN 201610517419A CN 106168707 A CN106168707 A CN 106168707A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/06—Panoramic objectives; So-called "sky lenses" including panoramic objectives having reflecting surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0015—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design
- G02B13/002—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras characterised by the lens design having at least one aspherical surface
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
- G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
- G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Microscoopes, Condenser (AREA)
Abstract
The open a kind of imaging device of the present invention, it includes the imaging system that two structures are identical, each imaging system will have a wide-angle lens and image sensor, this wide-angle lens has the angle of visual field more than 180 degree, and start to be arranged in sequence with front lens group parts, reflecting element and rear mirror group parts from thing side, the optical axis of front lens group parts passes sequentially through reflecting element mirror group component flexes backward, and the image that two wide-angle lens are absorbed combines and obtains the image of 4 π radian solid angles.Each wide-angle lens includes front lens group parts, independent reflecting element, rear mirror group parts.The structure of this separate type not only can reduce two camera lenses spacing between the first eyeglass of light direction but also is beneficial to assemble production.
Description
Technical field:
The present invention relates to a kind of optical imaging device.
Background technology:
The existing image capture system that can absorb 4 π solid angles, utilizes two wide-angle lens to realize.On the market
More common scheme is to utilize two independent back-to-back wide-angle lens to realize.The feature of this type of scheme is two camera lenses
After forming module with sensor respectively, optical axis coincidence, in the opposite direction one optical system of composition.Due to two wide-angle lens institutes
The imaging system of composition, the length of its optical axis direction, the superposition overall length of each camera lens.When the resolution of camera lens improves or passes
When becoming large-sized of sensor, camera lens needs longer length.
When combining more than the wide-angle lens at 180 ° of angles for two, between two wide-angle lens maximum incident angle light
There is non-overlapping copies part.Later " non-overlapping copies part " " can not imaging moiety " should be referred to as, it is not necessary to illustrate, this " can not become
As part " should be the least.It is clear that this type of camera lens is longer due to the length of optical axis direction, its " can not imaging moiety " relatively
Greatly.
Japanese patent application discloses 2,010 271675 and the open 103685886A of Chinese patent application by light path turnover dress
Put light path of transferring, this non-overlapping copies part can be shortened.In order to reduce this " can not imaging moiety ", Chinese patent Shen further
103685886A be please disclose and a kind of shared reflection unit and the imaging device of shared main tubular part, referred to as integral type knot disclosed
Structure.Although this technology can improve the imaging system length at optical axis direction, shorten non-overlapping copies part, but its need by
Two wide-angle lens are assembled on a retainer, and the shared reflection unit of wide-angle lens and main tubular part mean producing
In to ensure the performance of two wide-angle lens simultaneously, this has also implied that a camera lens is bad, and whole imaging device will not
Good, it is added significantly to the fraction defective in producing and uncertainty, the most unfavorable for batch production.Along with carrying of sensor technology
The high development with image transmission technology, market is more and more higher for the pixel request of imaging system.Field when corresponding 4K high pixel
During conjunction, the fraction defective of camera lens can improve, and causes the fraction defective of imaging system to increase sharply.Therefore, this technology is in the field of corresponding high pixel
There is assembling complexity during conjunction, required precision is high, the shortcoming that fraction defective is higher.
Other integral structure once it is determined that, can not change, it is impossible to according to customer demand adjust outward appearance, customized degree
Low.Integral structure shortens length at optical axis direction, but its direction being perpendicular to optical axis sacrificed.Using optical axis direction as
Z axis, when transferring for light path, a part of length of each camera lens has forwarded in X-axis and Y-axis.Integral structure shares
Reflection unit so that the part after turnover is parallel to X-axis or Y-axis simultaneously.Obviously, the length in its X-axis or Y-axis can increase
Add, i.e. increase the length in certain direction being perpendicular to optical axis, be unfavorable for miniaturization.
Summary of the invention:
The disadvantages mentioned above of present invention prior art to be overcome, it is provided that during the occasion of a kind of productibility high pixel good, corresponding
The imaging device that yields is high, profile can be changed, customized degree is high.
A kind of imaging device of the present invention, is combined group by two identical first imaging systems and the second imaging system
Becoming, two imaging systems have identical imaging arrangement and the most in a center of symmetry；Described imaging arrangement includes one more than 180 °
The wide-angle lens of the angle of visual field and for absorbing the sensor of the image that this wide-angle lens is formed；
Described wide-angle lens all includes front lens group parts, reflecting element and the rear mirror group portion arranged from the object side to image side
Part, and the reflecting surface mirror group component flexes backward that the optical axis of front lens group parts is by reflecting element；By by the first imaging system
Combine with the image of the second imaging system picked-up and obtain the image that solid angle is 4 π, it is characterised in that:
First wide-angle lens of the first imaging system and the second wide-angle lens of the second imaging system have the most independent guarantor
Holding frame, reflecting element, described retainer is combined by attachment means so that the front lens group parts of the first wide-angle lens
In line and camera lens orientation is mutually opposing with the optical axis of the front lens group parts of the second wide-angle lens, the first wide-angle lens
The optical axis of the rear mirror group parts of rear mirror group parts and the second wide-angle lens is parallel to each other or angled.
Further, described retainer include the front pipe for installing front lens group parts and after installing mirror group parts
Rear pipe, the optical axis of described front Guan Yuhou pipe is mutually perpendicular to；It is provided with reflecting element, even in connecting portion between front Guan Yuhou pipe
The portion of connecing is provided with platform, and described platform parallel, in the optical axis of front pipe the optical axis of pipe after being perpendicular to, platform has installation circle
Hole；
Attachment means for connection retainer includes above-mentioned platform and installs circular hole, also includes being arranged on front tube end
Positioning round orifice and the positioning cylinder that is arranged on rear tube side wall, the positioning cylinder of retainer inserts the setting circle of another retainer
In hole, the platform laminating of the platform of retainer and another retainer, make the installation circular hole on two retainers meet after alignment and fill
Enter screw.
Further, the present invention is by mirror group parts relative position in retainer after regulation, it is achieved the merit of rear burnt regulation
Energy.Rear mirror group parts seesaw along optical axis direction in retainer.More than rear mirror group parts, retainer is fitted together to no less than one section
Relation, rear mirror group member outside has annular groove or other signature design of corresponding retainer relative initial position.Initial position is big
After causing correspondence, the mirror group parts relative position in retainer after being regulated by external force, confirm according to actual imaging device effect
Focusing completes, and is fixed in retainer by rear mirror group parts.
In the outside of retainer, there is the datum plane for breasting, for determining the vertical extent of optical axis, it is adaptable to individually
Assembling.
Use separate type structure, it is only necessary to ensureing the performance of single wide-angle lens, two non-defective unit camera lens combinations just can group
Become a non-defective unit device.
The present invention can expand the distance between two wide-angle lens, and one of them is rotated around the optical axis of front lens group
Certain angle.
Advantages of the present invention: productibility is good, assembling simplicity, yields is high, easily adjusts outward appearance, visitor according to customer demand
Inhibition and generation degree is high, beneficially miniaturization.
Accompanying drawing explanation
Increase accompanying drawing and illustrate that back-to-back system can not shooting area.
Fig. 1 is present system structural representation.
Fig. 2 is the MTF schematic diagram of wide-angle lens example one.
Fig. 3 is the axial chromatic aberration schematic diagram of wide-angle lens example one.
Fig. 4 is the filed curvature schematic diagram of wide-angle lens example one.
Fig. 5 is the relative illumination schematic diagram of wide-angle lens example one.
Fig. 6 is the structural representation of wide-angle lens example two
Fig. 7 is the curvature of field and the axial chromatic aberration schematic diagram of wide-angle lens example two
Fig. 8 is the structural representation of wide-angle lens example three
Fig. 9 is the curvature of field and the axial chromatic aberration schematic diagram of wide-angle lens example three
Figure 10 is the rear reverse 180 degree of state machine schematic diagrams of mirror group parts optical axis of wide-angle lens example
Figure 11 is rear mirror 0 degree of view of group parts optical axis of wide-angle lens example
Figure 12 is rear mirror 90 degree of view of group parts optical axis of wide-angle lens example
Figure 13 is rear mirror 135 degree of view of group parts optical axis of wide-angle lens example
Figure 14 is the frame structure schematic diagram of wide-angle lens example
Figure 15 is the reflecting element schematic diagram of wide-angle lens example
Figure 16 be eccentricity regulation structure schematic diagram Figure 17 of the rear mirror group parts focussing mechanism of wide-angle lens example be Radix Rumicis
The eccentric adjusting member structural scheme of mechanism of camera lens example
Figure 18 is the screw drive structure schematic diagram of the rear mirror group parts focussing mechanism of wide-angle lens example
Detailed description of the invention
Further illustrate the present invention with reference to the accompanying drawings.
A kind of imaging device of the present invention, as it is shown in figure 1, by two identical first imaging systems and the second imaging
System combines composition, and two imaging systems have identical imaging arrangement and the most in a center of symmetry；Described imaging arrangement includes one
The individual wide-angle lens more than 180 ° of angles of visual field and for absorbing the sensor of image that this wide-angle lens is formed.
Optical system is made up of the first imaging system A and the second imaging system B, and each imaging system employs 8 eyeglasses.
First lens L1, the second lens L2, the 3rd lens L3, the 4th lens L4, the 5th lens L5, the 6th lens L6,
Seven lens L7, the 8th lens L8 respectively corresponding first lens LA1, second saturating in the first imaging system A and the second imaging system B
Mirror LA2, the 3rd lens LA3, the 4th lens LA4, the 5th lens LA5, the 6th lens LA6, the 7th lens LA7, the 8th lens LA8
With the first lens LB1, the second lens LB2, the 3rd lens LB3, the 4th lens LB4, the 5th lens LB5, the 6th lens LB6,
Seven lens LB7, the 8th lens LB8.
Front lens group is made up of the first lens L1 arranged along primary optic axis and the second lens L2, the first lens and second saturating
Mirror is all the meniscus lens with negative focal length, and meets: Nd > 1.7, Vd > 35, and wherein the second lens L2 is near image side.
The rear mirror group glass concave-concave the 4th by glass falcate the 3rd lens L3 arranged along the second optical axis, by gluing is saturating
Mirror L4 and glass biconvex the 5th lens L5, by glass biconvex the 6th lens L6, by glued glass glass concave-concave the 7th lens L7
Form with glass biconvex the 8th lens L8.Wherein the 8th lens L8 is near image side；
Aperture diaphragm is between the 3rd lens LA3 and the 4th lens LA4；
The focal length of the 3rd lens L3 is just, and meets: Nd > 1.7；
The focal length of the 4th lens L4 is negative, and meets: Nd > 1.7；
The focal length of the 5th lens L5 is just, and meets: Nd > 1.7；
The focal length of the 6th lens L6 is just, and meets: Vd > 48；
The focal length of the 7th lens L7 is negative, and meets: Nd > 1.6；
The focal length of the 8th lens L8 is just, and meets: Vd > 48；
Wherein, Nd represents the d optical index of lens material, and Vd represents the d light Abbe constant of lens material；
First reflecting surface RA is centrally disposed and all becomes 45 degree of angles, primary optic axis and second with primary optic axis and the second optical axis
Realized 90 ° of rotations of optical axis by the first reflecting surface RA between optical axis；
In the image side of rear mirror group, imageing sensor is installed.
Further, the first lens L1, the 3rd lens L3, that the 4th lens L4 and the 5th lens L5 is glass of high refractive index is saturating
Mirror；
8th lens L8 is ED glass lens；
Second lens L2 and the 6th lens L6 is glass " double aspheric surface " lens；
4th lens L4 and the 5th lens L5 is together to form glued part, and the cemented surface of this gluing part bends towards image space；
7th lens L7 and the 8th lens L8 is together to form glued part, and the cemented surface of this gluing part bends towards image space.
After each wide-angle lens, the image side of mirror group is provided with imageing sensor.As it is shown in figure 1, SA and SB represents light respectively
System is by the imageing sensor in imaging system A and imaging system B.
Following data describes three wide-angle lens examples of the present invention.
These data are applicable to each single optical imaging system.
Hereinafter, numeral 1 to 19 represents lens surface, diaphragm surface and optical filter surface." R " represents the song on each surface
Rate radius, and represent aspheric " paraxial curvature "." D " represents surface spacing, and " Nd " represents the refractive index of d line, and " vd " generation
Table Abbe number.Additionally, object distance is infinity.The unit of length measuring is " mm ".
Table indicates " * " for non-spherical lens.
In this example, L2 and L6 is non-spherical lens, and wherein non-spherical lens coefficient formula is as follows:
Z is the sag value of lens, and c is the inverse of radius of curvature, and h is the lens limit height to optical axis, and k is circular cone coefficient, A,
B, C, D and E represent order aspherical coefficients respectively.
Example one:
The optical property parameter of this example: focal length F=1.33, relative aperture Fno=2.0, angle of visual field FOV=190 degree.
Table 1 provides one group of lens parameter:
This example asphere coefficient is listed in the table below:
| Surface number | S3 | S4 | S12 | S13 |
| K | 75.4223 | ‐0.7847 | ‐0.45 | ‐3.4806 |
| A | 1.2522E‐004 | 7.5887E‐004 | ‐4.6501E‐004 | 3.8711E‐003 |
| B | ‐2.2324e‐005 | 5.7804e‐005 | ‐1.8946E‐004 | ‐2.8180e‐005 |
| C | 5.5633e‐007 | ‐8.5817e‐006 | ‐7.5788e‐005 | ‐6.0475e‐005 |
| D | ‐4.3473e‐009 | 3.3873e‐007 | ‐1.4650e‐006 | ‐6.0525e‐006 |
| E | ‐9.2742e‐027 | ‐9.2761e‐027 | ‐9.2771e‐027 | 9.2741e‐027 |
Fig. 2 is the MTF schematic diagram of wide-angle lens in this example.Transverse axis representation space frequency in figure, unit: line is to every millimeter
(lp/mm)；The longitudinal axis represents the numerical value of modulation transfer function (MTF) (MTF), and the numerical value of described MTF is used for evaluating the image quality of camera lens,
Span is 01, and MTF curve is the highest more directly represents that the image quality of camera lens is the best, the strongest to the reducing power of true picture.
Fig. 2 includes diffraction limit 21, axis 22, R the line 23 and T line 24 during 0.3Field (26.00 °), 0.7Field (63.00 °)
Time T line 25 and R line 26, R the line 27 and T line 28 during 1.0Field (94.99 °)；Picture element has obtained good school as seen from Figure 2
Just, it is possible to achieve output performances more than 16,000,000 pixels.
Fig. 3 is the axial chromatic aberration schematic diagram of wide-angle lens in this example；Typically require that lateral chromatic aberration is in the range of Airy disk.
For optical imaging system, weighing the limit of imaging surface resolution with Airy disk diameter, Airy disk radius is r=1.22 λ
f/d；If lateral chromatic aberration is excessive, it is found that on imaging surface, color is uneven.From figure 3, it can be seen that the light of different frequency
Lateral chromatic aberration major part is all in the range of Airy disk, and imaging aberrations is relatively uniform, i.e. axial chromatic aberration has obtained good correction, can
To realize blur-free imaging.
Fig. 4 is the filed curvature schematic diagram of wide-angle lens in this example；The curvature of field is the biggest, and during shooting straight line, this is straight
Line more bending, if the curvature of field exists one even more than flex point, it is seen that straight line can become sinuate line.Can from Fig. 4
See that curvature of the image has obtained preferable correction, although have wide-angular field, but full filed picture element is the most uniform.
Fig. 5 is the relative illumination figure of wide-angle lens in this example；More than 75% can be kept as shown in Figure 5 at full filed
Relative illumination so that image planes entirety uniform-illumination, it is to avoid the shortcoming that some camera lens peripheries are dark on the market.
Being analyzed by appeal, show that the wide-angle lens designed by the present invention is keeping the angle of visual field big, periphery light ratio is high
While feature, also improve the resolution of camera lens, make image pixel arrive 16,000,000.Wherein the angle of visual field of 190 ° can effectively subtract
Little each camera lens maximum field of view angle luminous flux does not overlaps the image of part.
Following two example no longer illustrates.
Embodiment two:
The optical property parameter of this example: focal length F=1.28, relative aperture Fno=2.03, angle of visual field FOV=190 degree.
Table 2 provides one group of lens parameter:
This example asphere coefficient is listed in the table below:
| Surface number | S3 | S4 | S11 | S12 |
| K | ‐99.00 | ‐0.7759 | ‐0.5145 | 23.1018 |
| A | 7.1159e‐004 | 1.0255e‐003 | ‐4.3977e‐004 | 6.0740e‐003 |
| B | ‐5.6583e‐005 | 6.9844e‐005 | 2.1293e‐004 | 1.7817e‐004 |
| C | 1.4175e‐006 | ‐1.6269e‐005 | ‐5.1714e‐005 | ‐4.6786e‐005 |
| D | ‐1.3178e‐008 | 6.0862e‐007 | 3.9490e‐006 | 2.4520e‐006 |
| E | ‐1.1115e‐025 | ‐1.1118e‐025 | ‐1.1118e‐025 | ‐1.1118e‐025 |
Fig. 6 and Fig. 7 is the structural representation of example two and the curvature of field and axial chromatic aberration schematic diagram respectively.
Embodiment three:
The optical property parameter of this example: focal length F=1.35, relative aperture Fno=2.01, angle of visual field FOV=190 degree.
Table 3 provides one group of lens parameter:
This example asphere coefficient is listed in the table below:
Fig. 8 and Fig. 9 is the structural representation of example three and the curvature of field and axial chromatic aberration schematic diagram respectively.
Figure 10 is expressed as the wide-angle lens described in embodiment and uses state partly to cut open schematic diagram, and the first of the first imaging system is wide
Second wide-angle lens of angle mirror head and the second imaging system has the most independent retainer 1, reflecting element 12, described retainer
Combined by attachment means so that the front lens group parts 2 of the first wide-angle lens and the front lens group portion of the second wide-angle lens
The optical axis of part 2 is in line and camera lens orientation is mutually opposing, the rear mirror group parts 3 of the first wide-angle lens and the second wide-angle lens
The optical axis of the rear mirror group parts 3 of head is parallel to each other or angled.The optical axis institute angulation of mirror group parts 3 after shown in Figure 10 two
Degree is for reverse 180 degree, and now between the front lens group parts 2 of two wide-angle lens, lateral separation is minimum.
As shown in Figure 11 13, the respectively first imaging system becomes to lead to mirror group parts 3 optical axis angle after the second imaging system
To 0 degree, 90 degree, 135 degree time, relative position residing for two wide-angle lens in imaging system.
From Figure 11 13, according to customer demand, thus it is possible to vary the coupling arrangement between two wide-angle lens, two light
System is still independent, and customized characteristic is stronger.
Figure 11 13, it is possible to learn, rotates the angle of one of them imaging system, after can shortening two between mirror group
Fore-and-aft distance.The most as shown in figure 11, when after two imaging systems the optical axis of mirror group parts 3 become 0 degree in the same direction time, fore-and-aft distance
The shortest.
Below with the fixing means of the use state description imaging system of wide-angle lens in Figure 10 and device.
As shown in figure 14, described support body 11 is provided with a positioning round orifice 111 and a positioning cylinder 112.Described frame
Body 11 is provided with two and installs circular hole, and one of them installs circular hole is to install circular hole 113, and another is for installing circular hole 114.Described
Support body 11 is provided with a focusing circular hole 115.Described positioning round orifice 111 is identical with positioning cylinder 112 diameter, and positioning round orifice
111 with positioning cylinder 112 position distribution situation are: both are equal to the vertical dimension of front lens group parts 2 optical axis.Described installation
Circular hole 113 with 114 position distribution situations is: both are equal to the vertical dimension of rear mirror group parts 3 optical axis.
As shown in figure 15, described reflective surface elements 12 is right angled triangle prism that hypotenuse is 45 °.Described reflection
The S1 face of surface element 12 corner cube prism and S3 face are coated with anti-reflection film, and S2 face is coated with reflectance coating.
Concrete installation process and step are as follows: first install an optical imaging system and a reflector on support body 11
Part 12, described optical imaging system is furnished with a wide-angle lens more than 180 degree of angles of visual field, before described wide-angle lens includes
Mirror group parts 2 and rear mirror group parts 3.Described reflecting element 12 is arranged on the installed surface that support body 11 is corresponding.Before described
Mirror group parts 2 are managed on corresponding mirror group installed surface before being arranged on retainer 1, described rear mirror group parts 3 are arranged on retainer 1
In rear pipe.So far, an independent optical imaging system is completed.
Then two single optical imaging systems are substantially aligned according to front lens group parts 2 optical axis straight line, rear mirror group portion
Part 3 optical axis direction 180 degree is substantially aligned.Respectively by the positioning cylinder 112 on respective optical imaging system support body 11 corresponding to another
Positioning round orifice 111 on one optical imaging system support body 11, loads after alignment.Now on two optical imaging system support bodys 11
Installing circular hole 113 and 114 position also can automatic aligning.In circular hole 113 and installation circular hole 114 are installed, finally load two locks pay
Screw.
So far, the fixed installation process of the imaging device described in this example completes.
Use prism as reflecting element, make light path realize 90 ° of reversions, substantially reduce each camera lens maximum field of view angle light
Flux does not overlaps the image of part, and coordinates the wide-angle lens of 190 °, it is achieved full visual angle imaging.Use by two individually
The method fitted together more than the optical imaging system of 180 degree of angles of visual field, reaches to obtain the image that solid angle radian is 4 π
Purpose, reduces the production difficulty of support body 11.
The focusing mode of the imaging device described in this example is: imaging surface invariant position, and after regulation, mirror group parts 3 are keeping
Relative position in frame 1, it is achieved back focal length is from the function of regulation.The mode that after realization, mirror group parts 3 move in retainer 1 has
Eccentric adjusting transmission, screw-driven etc..
The kind of drive of eccentric adjusting, mechanism includes retainer 1, rear mirror group parts 3, eccentric adjusting member 4.
As shown in figure 16, described retainer 1 has the focusing circular hole 115 of 1 a diameter of 2mm.Described rear mirror group portion
Part 3 surface includes the cannelure 31 of width 1.4mm.
The internal-and external diameter engomphosis relation no less than one section, rear mirror group parts are had between described retainer 1 and rear mirror group parts 3
3 can slide in retainer 1 relatively.Described chimeric surface has two sections, the longest chimeric surface 121 and short chimeric surface 122.
As shown in figure 17, described eccentric adjusting member 4 is divided into 4 sections, is off the most respectively according to external diameter size
Post 41, cooperation post 42, breasting post 43, column spinner 44.Wherein a diameter of 1mm of biasing post 41, with the cylindrical inscribe coordinating post 42.
Coordinate a diameter of 2mm of post 42, identical with focusing circular hole 115 diameter on retainer 1, in actual focussing process, coordinate post
42 match with focusing circular hole 115.The outer face of breasting post 43 is for taking advantage of by face 431, and it holds with focusing circular hole 115 outer surface 1151
Lean on.Column spinner 44 is hand-held rotation portion, by the rotation of column spinner 44, drives biasing post 41 to move in a circle.
By the column spinner on rotating eccentricity regulation parts 4, thus skew before and after driving biasing post 41, due to biasing post 41
Contact tangent with the cannelure 31 on rear mirror group parts 3 so that rear mirror group parts 3 axially finely tune motion in retainer 1, it is achieved
Rear mirror group parts 3 adjusting back focal length from function.In this full visual angle optical imaging system two monolateral optical imaging systems it
Between focus and do not interact, reduce the focusing difficulty of this full filed optical imaging system.
Eccentric gearing is specifically installed and focussing process is as follows:
First rear mirror group parts 3 are loaded retainer 1, by the focusing circular hole 115 of corresponding cannelure 31 with main body tube parts
Put and be generally corresponding to, this full visual angle optical imaging system miscellaneous part is completed, carries out image detection.
Use eccentric adjusting member 4, biasing post is inserted focusing circular hole 115, breasting face 431 and focusing circular hole outer surface
1151 breastings, biasing post has with cannelure 31 and contacts, and by the rotation of column spinner 44, biasing post 41 is protected with cannelure 31 always
Hold tangent state.
Cannelure 31 can occur the motion axially finely tuned, rear mirror group parts 3 that axial fine setting campaign occurs.According to cannelure
31, focusing circular hole 115, biasing post 41, coordinate the size of post 42, can calculate front and back finely tune the regulated quantity of motion for ±
0.3mm.This amount trimmed is sufficient for the rear burnt regulation of system.
According to image effect, after decision, whether burnt regulation completes, if completing, then in focusing circular hole 115 and cannelure 31
Add binding agent, make rear mirror group parts 3 fix with the relative position of retainer 1.
After opposite side, the focussing process of mirror group parts 3 is identical with this.So far, the focussing process of full visual angle optical imaging system
Complete.
The focusing mode that after another, mirror group parts 3 move in retainer 1 is screw-driven mode.Do below
Simple description.
Screw-driven mode is the simplest kind of drive that rotary motion becomes linear motion, and mechanism includes retainer
1, rear mirror group parts 3.As shown in figure 18, described retainer 1 includes support body 11.Dead slot 116 is had on support body 11.Described rear mirror
Group parts 3 are pipe, therefore the rotation amount of self can change into axial amount of movement.Rear mirror group parts 3 have one section of biography
Dynamic screw thread 32 coordinates with retainer 1, and rear mirror group parts 3 have no less than one section of engomphosis relation with keeping body 1.Described engomphosis relation
Including long chimeric surface 121, short chimeric surface 122.At long chimeric surface, outside rear mirror group 3, it is with equally distributed keyway 33.Retainer
1 outside has dead slot 116 at, described dead slot 116 from outside it can directly be seen that exposed rear mirror group parts 3.External Force Acting
On keyway 33 on rear mirror group parts 3 so that the motion thread 32 on rear mirror group parts 3 occurs screw-driven with retainer 1,
Make rear mirror group parts 3 stable linear motion the most at a slow speed in retainer 1, thus realize back focal length from regulatory function.
Although the mode that the present invention uses example is described, it is not limited to this.Those skilled in the art can manage
Solution various deformation of above-mentioned embodiment in the case of without departing from the scope of the invention being defined by the claims are all feasible
's.
Claims (5)
1. an imaging device, is combined by two identical first imaging systems and the second imaging system and forms, two one-tenth
As system has identical imaging arrangement and the most in a center of symmetry；Described imaging arrangement includes wide more than 180 ° of angles of visual field
Angle mirror head and for absorbing the sensor of image that this wide-angle lens is formed；
Described wide-angle lens all includes front lens group parts, reflecting element and the rear mirror group parts arranged from the object side to image side, and
The optical axis of the front lens group parts reflecting surface mirror group component flexes backward by reflecting element；By by the first imaging system and second
The image of imaging system picked-up combines and obtains the image that solid angle is 4 π, it is characterised in that:
First wide-angle lens of the first imaging system and the second wide-angle lens of the second imaging system have the most independent retainer,
Reflecting element, described retainer is combined by attachment means so that the front lens group parts of the first wide-angle lens and
The optical axis of the front lens group parts of two wide-angle lens is in line and camera lens orientation is mutually opposing, the rear mirror of the first wide-angle lens
The optical axis of the rear mirror group parts of group parts and the second wide-angle lens is parallel to each other or angled.
2. imaging device as claimed in claim 1, it is characterised in that: described retainer includes for installing front lens group parts
Front pipe and after installing the rear pipe of mirror group parts, the optical axis of described front Guan Yuhou pipe is mutually perpendicular to；Front Guan Yuhou manages it
Between connecting portion in be provided with reflecting element, connecting portion is provided with platform, and described platform parallel is in the optical axis of front pipe vertical
The optical axis of Yu Houguan, platform has installation circular hole；
Attachment means for connection retainer includes above-mentioned platform and installs circular hole, also includes being arranged on determining of front tube end
Circle of position hole and the positioning cylinder being arranged on rear tube side wall, the positioning cylinder of retainer inserts the positioning round orifice of another retainer
In, the platform laminating of the platform of retainer and another retainer, make the installation circular hole on two retainers meet after alignment and load
Screw.
3. imaging device as claimed in claim 2, it is characterised in that: by relative in retainer of mirror group parts after regulation
Position, it is achieved the function of rear burnt regulation；Rear mirror group parts seesaw along optical axis direction in retainer；Rear mirror group parts with
Retainer is no less than one section of engomphosis relation, and rear mirror group member outside has annular groove or other marks of corresponding retainer relative initial position
Will designs；After initial position is generally corresponding to, the mirror group parts relative position in retainer after being regulated by external force, according to reality
Border imaging device effect confirms that focusing completes, and rear mirror group parts are fixed in retainer.
4. imaging device as claimed in claim 3, it is characterised in that: by mirror group parts 3 after regulation in retainer 1 relatively
The concrete structure of position is: rear mirror group parts 3 have one section of screw thread to engage with retainer 1, and retainer 1 is outside dead slot at, logical
Cross mirror group parts 3 after external stress rotates, it is achieved rear mirror group parts 3 are stable linear motion the most at a slow speed in retainer 1.
5. imaging device as claimed in claim 3, it is characterised in that: by mirror group parts 3 after regulation in retainer 1 relatively
The concrete structure of position is: insert eccentric adjusting member 4, the outer end of regulation circular hole 115 in the regulation circular hole 115 outside retainer
Face 1151 is the datum plane that the breasting face with eccentric adjusting member 4 coordinates；Eccentric adjusting member 4 be divided into from the inside to surface external diameter by
4 sections that flaring is big: biasing post 41, cooperation post 42, breasting post 43, column spinner 44, wherein biasing post 41 and the cylindrical coordinating post 42
Inscribe, coordinates post 42 identical with the diameter of focusing circular hole 115, in actual focussing process, coordinates post 42 and focusing circular hole 115 phase
Coordinate；The outer face of breasting post 43 is and focusing the taking advantage of by face 431 of circular hole 115 outer surface 1151 breasting；Column spinner 44 is hand-held
Rotation portion, by the rotation of column spinner 44, drives biasing post 41 to move in a circle；Biasing post 41 and the ring of rear mirror group parts 3
Shape groove 31 contacts and tangent, and after biasing post 41 drives, the fine setting of mirror group parts 3 is moved.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517419.3A CN106168707B (en) | 2016-06-28 | 2016-06-28 | A kind of imaging device |
| PCT/CN2016/101531 WO2018000651A1 (en) | 2016-06-28 | 2016-10-09 | Imaging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610517419.3A CN106168707B (en) | 2016-06-28 | 2016-06-28 | A kind of imaging device |
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| CN106168707A true CN106168707A (en) | 2016-11-30 |
| CN106168707B CN106168707B (en) | 2019-01-29 |
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| CN201610517419.3A Active CN106168707B (en) | 2016-06-28 | 2016-06-28 | A kind of imaging device |
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| CN (1) | CN106168707B (en) |
| WO (1) | WO2018000651A1 (en) |
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| CN107247322A (en) * | 2017-07-12 | 2017-10-13 | 中山市弗图艾力克光电科技有限公司 | A kind of adjustable full shot of thickness |
| CN107632372A (en) * | 2017-10-25 | 2018-01-26 | 东莞市宇瞳光学科技股份有限公司 | A kind of periscopic two-way flake panorama system of adjustable focus |
| CN109085688A (en) * | 2018-09-30 | 2018-12-25 | 江西联创电子有限公司 | Imaging device and lens system |
| CN111758060A (en) * | 2018-03-02 | 2020-10-09 | 株式会社理光 | Optical system, and image forming apparatus |
| CN113383258A (en) * | 2019-02-07 | 2021-09-10 | 株式会社理光 | Optical system, imaging system, and imaging apparatus |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106168707B (en) | 2019-01-29 |
| WO2018000651A1 (en) | 2018-01-04 |
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