CN106886085A - Optical system and the camera including this - Google Patents
Optical system and the camera including this Download PDFInfo
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- CN106886085A CN106886085A CN201610878525.4A CN201610878525A CN106886085A CN 106886085 A CN106886085 A CN 106886085A CN 201610878525 A CN201610878525 A CN 201610878525A CN 106886085 A CN106886085 A CN 106886085A
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- lens
- refractive power
- positive refractive
- optical system
- lens group
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/16—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group
- G02B15/163—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group
- G02B15/167—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective with interdependent non-linearly related movements between one lens or lens group, and another lens or lens group having a first movable lens or lens group and a second movable lens or lens group, both in front of a fixed lens or lens group having an additional fixed front lens or group of lenses
Abstract
The present invention discloses a kind of optical system and the camera including this.Optical system of the invention is included：First lens group, is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power；Second lens group, is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power；Aperture, is arranged between first lens group and second lens group.
Description
Technical field
The present invention relates to the optical system with reliable enlargement ratio and the camera including this.
Background technology
Camera is utilized in various field.For example, camera can be used to monitor electricity on the production line of electronic unit
Subassembly it is whether abnormal.The camera in the field needs to shoot the overall shape of electronic unit and careful part.
Camera for the function needs to be equipped with the optical system with multiple focal lengths.For example, camera can possess many
Individual optical system possesses varifocal optical system.But the camera based on the former along with device maximization and be manufactured into
This increase；Camera based on the latter causes the part of lens to move caused definition (resolution) reduction phenomenon.
Accordingly, it would be desirable to develop a kind of maximization for being not only not accompanied by camera and the increase of manufacturing cost but also can have high definition
The optical system of clear degree and the camera including this optical system.
[prior art literature]
[patent document]
(patent document 1) JP2001-124971A
(patent document 2) US2003-0058548A1
The content of the invention
It is an object of the invention to provide it is a kind of with enlargement ratio independently the optical system with constant definition with
And the camera including this.
Optical lens system of the present invention for reaching the purpose is included：First lens group, by with positive refractive power
Multiple lens and the multiple lens with negative refractive power are constituted；Second lens group, by multiple lens and tool with positive refractive power
The multiple lens for having negative refractive power are constituted；Aperture, is arranged between first lens group and second lens group.
The present invention can provide the camera of optical system and adjustable magnification ratio with constant definition.
Brief description of the drawings
Fig. 1 is the pie graph of the optical system of an embodiment of the invention.
Fig. 2 is the table of the lens peculiarity for showing to be illustrated in the optical system of Fig. 1.
Fig. 3 is the pie graph of the camera of an embodiment of the invention.
Fig. 4 is the pie graph being illustrated under the first enlargement ratio of the camera of Fig. 3.
Fig. 5 is the pie graph being illustrated under the second enlargement ratio of the camera of Fig. 3.
Fig. 6 is modulation transfer function (MTF) curve map for the camera for being illustrated in Fig. 3.
Fig. 7 is the pie graph of camera according to another embodiment of the present invention.
Symbol description
10：First lens 20：Second lens
30：3rd lens 40：4th lens
50：5th lens 60：6th lens
70：7th lens 80：8th lens
90：9th lens 100：Tenth lens
110：11st lens 200：Camera
210：Optical system 220：Lens barrel
230：Housing 240：Actuator
242：Permanent magnet 244：Coil
250：Variable lens barrel 270：(imageing sensor) image planes
ST：Aperture G1：First lens group
G2：Second lens group
Specific embodiment
Hereinafter, the preferred embodiments of the present invention are described in detail referring to the drawings.
Below in the explanation carried out for the present invention, represent that the term of inscape of the invention allows for each structure
The term named into the function of key element, therefore can not be understood to containing that technical inscape of the invention is limited
Justice.
Meanwhile, herein, so-called a certain inscape not only includes these with the implication of another inscape " connection "
The situation of inscape " being directly connected to ", also including another inscape is clipped in the middle and the situation of " being indirectly connected with ".Additionally,
So-called " including (including) " certain inscape is represented：Can also include (including) in the case of without special opposite record
Other inscapes, rather than by except other inscapes.
Meanwhile, herein, the first lens represent the lens nearest with object (or subject), and the 11st lens are represented
With image planes or the nearest lens of detector (detector).In the text, radius of curvature (Radius), the thickness of lens
(Thickness), the unit of focal length is mm.Meanwhile, the spacing between thickness, the lens of lens is the distance on lens axis.
And, in the explanation for lens shape, so-called " being simultaneously the shape of protrusion " is the implication of the optical axis portion protrusion in the face,
And " being simultaneously recessed shape " is the recessed implication of the optical axis portion in the face.Therefore, even if explanation is for the one side of lens
The shape of protrusion, the marginal portion of its lens can also be recessed shape.Equally, even if explanation is recessed for the one side of lens
Shape, the marginal portion of its lens can also be the shape of protrusion.
Reference picture 1 and to being illustrated according to the optical system of an embodiment.
Optical system 210 includes multiple lens.For example, optical system 210 can include more than 10 pieces of lens.As ginseng
Examine, the optical system 210 according to the present embodiment is by the first lens 10, the second lens 20, the 3rd lens 30, the 4th lens 40,
Five lens 50, the 6th lens 60, the 7th lens 70, the 8th lens 80, the 9th lens 90, the tenth lens 100, the 11st lens
110 are constituted.
Optical system 210 can be made up of multiple lens groups.For example, optical system 210 can be by more than two
Microscope group is constituted.Used as reference, the optical system 210 according to the present embodiment can be by the first lens group G1 and the second lens group G2
To constitute.
First lens group G1 is made up of the lens 50 of the first lens 10 to the 5th, the second lens group G2 by the 6th lens 60 to
11st lens 110 are constituted.However, the composition of the first lens group G1 is not limited to the lens 50 of the first lens 10 to the 5th,
And second the composition of lens group G2 be not limited to the lens 110 of the 6th lens 60 to the 11st.For example, the first lens group G1
The number of lens can be to be increased or decreased in the range of in the overall refractive power of the first lens group G1.Equally, second is saturating
The number of the lens of microscope group G2 can be to be increased or decreased in the range of in the overall refractive power of the second lens group G2.
First lens group G1 is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power.Example
Such as, the first lens group G1 can be made up of three pieces of lens with positive refractive power and two pieces of lens with negative refractive power.
First lens group G1 is configured to overall with positive refractive power.For example, the first lens group G1 can continuously cloth
It is equipped with three pieces of lens with positive refractive power.
First lens group G1 includes more than one pair of cemented lens.
Second lens group G2 is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power.Example
Such as, the second lens group G2 can be made up of four pieces of lens with positive refractive power and two pieces of lens with negative refractive power.
Second lens group G2 can be constituted in the way of integrally having positive refractive power.For example, constituting the second lens group G2
Lens in, the number of the lens with positive refractive power can be more than the number of the lens with negative refractive power.
Second lens group G2 includes more than one pair of cemented lens.For example, in the lens of the second lens group G2 of composition, being located at
The lens of the position nearest from object side can be engaged with adjacent lens.
Optical system 210 can include aperture ST.Aperture ST can be arranged between the 5th lens 50 and the 6th lens 60.
However, the position of lens ST is not necessarily limited between the 5th lens 50 and the 6th lens 60.
Hereinafter, the lens for constituting the first lens group G1 of optical system 210 are described in detail.
First lens 10 have refractive power.For example, the first lens 10 have positive refractive power.But the dioptric of the first lens 10
Power be not necessarily limited on the occasion of.For example, the first lens 10 can have in the range of positive refractive power in the first lens group G1 having
There is another refractive power.
First lens 10 have the recessed shape of one side protrusion, another side.For example, the first lens 10 have the face of object side
The shape that (object-side surface) protrudes, the face (image-side surface) of image side is recessed.
First lens 10 are spherical shape.For example, the two sides of the first lens 10 can be the shape of sphere.Therefore, first
Lens 10 can be made up of glass material.
First lens 10 have predetermined refractive index.For example, the refractive index of the first lens 10 can be more than 1.8.As above
The refractive index of the first described lens 10 can be highest numerical value in the lens 110 of the first lens 10 to the 11st.
First lens 10 have predetermined Abbe number.For example, the Abbe number of the first lens 10 can be less than 30.As above institute
The Abbe number of the first lens 10 stated can be minimum numerical value in the lens 110 of the first lens 10 to the 11st.
Second lens 20 have refractive power.For example, the second lens 20 have positive refractive power.But the dioptric of the second lens 20
Power be not necessarily limited on the occasion of.For example, the second lens 20 can have in the range of positive refractive power in the first lens group G1 having
There is another refractive power.
Second lens 20 have the recessed shape of one side protrusion, another side.For example, the second lens 20 have the face of object side
The shape of recessed, image side face protrusion.
Second lens 20 are spherical shape.For example, the two sides of the second lens 20 can be spherical shape.Therefore, second is saturating
Mirror 20 can be made up of glass material.
Second lens 20 have predetermined refractive index.For example, the refractive index of the second lens 20 is less than 1.7.
Second lens 20 have the Abbe number more than the first lens 10.For example, the Abbe number of the second lens 20 can be 50
More than.The second lens 20 being made up of mode as described above can effectively improve the aberration caused by the first lens 10.
3rd lens 30 have refractive power.For example, the 3rd lens 30 have positive refractive power.But the dioptric of the 3rd lens 30
Power be not necessarily limited on the occasion of.For example, the 3rd lens 30 can have in the range of positive refractive power in the first lens group G1 having
There is another refractive power.
3rd lens 30 have most strong positive refractive power in the first lens group G1.For example, the focal distance ratio of the 3rd lens 30
The focal length of the first lens 10 and the second lens 20 is short.
3rd lens 30 have the shape of at least one side protrusion.For example, the face and image side of the object side of the 3rd lens 30
Face be the shape of protrusion.
3rd lens 30 are spherical shape.For example, the two sides of the 3rd lens 30 can be the shape of sphere.Therefore, the 3rd
Lens 30 can be made up of glass material.
3rd lens 30 have predetermined refractive index.For example, the refractive index of the 3rd lens 30 can be less than 1.7.
3rd lens 30 have the Abbe number more than the first lens 10.For example, the Abbe number of the 3rd lens 30 can be 60
More than.The 3rd lens 30 being made up of mode as described above can effectively improve the aberration caused by the first lens 10.
4th lens 40 have refractive power.For example, the 4th lens 40 have negative refractive power.But the dioptric of the 4th lens 40
Power is not necessarily limited to negative value.For example, the 4th lens 40 can have in the range of positive refractive power in the first lens group G1 having
There is another refractive power.
4th lens 40 have the recessed shape of one side protrusion, another side.For example, the 4th lens 40 have the face of object side
The shape of recessed, image side face protrusion.
4th lens 40 are spherical shape.For example, the two sides of the 4th lens 40 can be the shape of sphere.Therefore, the 4th
Lens 40 can be made up of glass material.
4th lens 40 have predetermined refractive index.For example, the refractive index of the 4th lens 40 can be more than 1.7.
4th lens 40 have the Abbe number less than the 3rd lens 30.For example, the Abbe number of the 4th lens 40 can be 40
Below.The 4th lens 40 being made up of mode as described above can effectively improve not by the second lens 20 and the 3rd
The small aberration that camera lens 30 improves.4th lens 40 can be engaged with adjacent lens.For example, the 4th lens 40 can be with position
Engaged in the 3rd lens 30 of object side.
5th lens 30 have refractive power.For example, the 5th lens 50 have negative refractive power.But the dioptric of the 5th lens 50
Power is not necessarily limited to negative value.For example, the 5th lens 50 can have in the range of positive refractive power in the first lens group G1 having
There is another refractive power.
At least one side of the 5th lens 50 is the shape of protrusion.For example, the 5th lens 50 are the face and image side of object side
The all recessed shape in face.
5th lens 50 are spherical shapes.For example, the two sides of the 5th lens 50 can be spherical shape.Therefore, the 5th
Lens 50 can be made up of glass material.
5th lens 50 have predetermined refractive index.For example, the refractive index of the 5th lens 50 can be more than 1.7.
5th lens 50 have the Abbe number less than the 3rd lens 30.For example, the Abbe number of the 5th lens 50 can be 40
Below.The 5th lens 50 being made up of mode as described above can effectively improve not by the second lens 20 and the 3rd
The small aberration that camera lens 30 improves.
Then, the lens for constituting the second lens group G2 of optical system 210 are described in detail.
6th lens 60 have refractive power.For example, the 6th lens 60 have positive refractive power.But the dioptric of the 6th lens 60
Power be not necessarily limited on the occasion of.For example, the 6th lens 60 can have in the range of positive refractive power in the second lens group G2 having
There is another refractive power.
6th lens 60 have the recessed shape of one side protrusion, another side.For example, the 6th lens 60 have the face of object side
Protrusion, the recessed shape in face of image side.
6th lens 60 are spherical shape.For example, the two sides of the 6th lens 60 can be the shape of sphere.Therefore, the 6th
Lens 60 can be made up of glass material.
6th lens 60 have predetermined refractive index.For example, the refractive index of the 6th lens 60 can be more than 1.7.
6th lens 60 have the Abbe number more than the 5th lens 50.For example, the Abbe number of the 6th lens 60 can be 40
More than.The 6th lens 60 being made up of mode as described above can effectively improve the color not improved by the 5th lens 50
Difference.
6th lens 60 can be engaged with adjacent lens.For example, the 6th lens 60 can with positioned at the of image surface side
Seven lens 70 are engaged.
7th lens 70 have refractive power.For example, the 7th lens 70 have positive refractive power.But the dioptric of the 7th lens 70
Power be not necessarily limited on the occasion of.For example, the 7th lens 70 can have in the range of positive refractive power in the second lens group G2 having
There is another refractive power.
7th lens 70 have the recessed shape of one side protrusion, another side.For example, the 7th lens 70 have the face of object side
Protrusion, the recessed shape in face of image side.
7th lens 70 are spherical shape.For example, the two sides of the 7th lens 70 can be the shape of sphere.Therefore, the 7th
Lens 70 can be made up of glass material.
7th lens 70 have predetermined refractive index.For example, the refractive index of the 7th lens 70 can be less than 1.6.
7th lens 70 have the Abbe number more than the 6th lens 60.For example, the Abbe number of the 7th lens 70 can be 60
More than.The 7th lens 70 being made up of mode as described above can effectively improve the aberration caused by the 6th lens 60.
7th lens 70 are engaged with the 6th lens 60.For example, the face of the object side of the 7th lens 70 can be close to the 6th
The face of the image side of lens 6.
8th lens 80 have refractive power.For example, the 8th lens 80 have negative refractive power.But the dioptric of the 8th lens 80
Power is not necessarily limited to negative value.For example, the 8th lens 80 can have in the range of positive refractive power in the second lens group G2 having
There is another refractive power.
8th lens 80 have the recessed shape of one side protrusion, another side.For example, the 8th lens 80 have the face of object side
Protrusion, the recessed shape in face of image side.
8th lens 80 are spherical shape.For example, the two sides of the 8th lens 80 can be the shape of sphere.Therefore, the 8th
Lens 80 can be made up of glass material.
8th lens 80 have predetermined refractive index.For example, the refractive index of the 8th lens 80 can be less than 1.6.
8th lens 80 can be constituted by with the identical material of the 7th lens 70.Accordingly, the Abbe number of the 8th lens 80 can
With identical with the 7th lens 70.For example, the Abbe number of the 8th lens 80 can be identically with the 7th lens 70 more than 60.
9th lens 90 have refractive power.For example, the 9th lens 90 have positive refractive power.But the dioptric of the 9th lens 90
Power be not necessarily limited on the occasion of.For example, the 9th lens 90 can have in the range of positive refractive power in the second lens group G2 having
There is another refractive power.
9th lens 90 have the recessed shape of one side protrusion, another side.For example, the 9th lens 90 have the face of object side
Protrusion, the recessed shape in face of image side.
9th lens 90 are spherical shape.For example, the 9th lens 90 can be the shape of sphere with two sides.Therefore,
9th lens 90 can be made up of glass material.
9th lens 90 have predetermined refractive index.For example, the refractive index of the 9th lens can be less than 1.6.
9th lens 80 can be constituted due to the identical material of the 7th lens 70.Accordingly, the Abbe number of the 8th lens 80 can
With identical with the 7th lens 70.For example, the Abbe number of the 8th lens 80 can be identically with the 7th lens 70 more than 60.
Tenth lens 100 have refractive power.For example, the tenth lens 100 have positive refractive power.But the tenth lens 100
Refractive power be not necessarily limited on the occasion of.For example, the tenth lens 100 can have the scope of positive refractive power in the second lens group G2
It is interior with another refractive power.
Tenth lens 100 have the recessed shape of one side protrusion, another side.For example, the second lens 20 have object side
The shape that face is protruded, the face of image side is recessed.
Tenth lens 100 are spherical shape.For example, the two sides of the tenth lens 100 can be the shape of sphere.Therefore, the
Ten lens 100 can be made up of glass material.
Tenth lens 100 have predetermined refractive index.For example, the refractive index of the tenth lens 100 can be less than 1.6.
Tenth lens 100 can be constituted by with the identical material of the 7th lens 70.Accordingly, the Abbe number of the tenth lens 110
Can be identical with the 7th lens 70.For example, the Abbe number of the tenth lens 100 can be identically with the 7th lens 70 more than 60.
11st lens 110 have refractive power.For example, the 11st lens 110 have negative refractive power.But the 11st lens
110 refractive power is not necessarily limited to negative value.For example, the 11st lens 100 can have positive dioptric in the second lens group G2
There is another refractive power in the range of power.
11st lens 110 are with negative refractive power most strong in the second lens group G2.For example, Jiao of the 11st lens 110
Away from short than the 8th lens 80.
11st lens 110 have the recessed shape of one side protrusion, another side.For example, the 11st lens 110 have object
The recessed shape in the face protrusion of side, the face of image side.
11st lens 110 are spherical shape.For example, the two sides of the 11st lens 110 can be the shape of sphere.For
This, the 11st lens 110 can be made up of glass material.
Tenth lens 110 have predetermined refractive index.For example, the refractive index of the 11st lens 110 can be less than 1.6.
11st lens 110 can be constituted due to the identical material of the 7th lens 70.Accordingly, the 11st lens 110 Ah
Shellfish number can be identical with the 7th lens 70.For example, the Abbe number of the 11st lens 110 can be identically with the 7th lens 70 60
More than.
Fig. 2 is the table of the optical characteristics for showing optical system 210.As shown in Fig. 2 the lens 50 of the first lens 10 to the 5th
Effective diameter is maximum in the first lens 10, minimum in the lens 50 of the 3rd lens 30 to the 5th.And, the 6th lens 60 to
The effective diameter of 11 lens 110 is roughly the same.
3 pairs of cameras according to an embodiment of reference picture are illustrated.
Camera 200 includes optical system 210, lens barrel 220, housing 230, actuator 240, imageing sensor.
Optical system 210 is made up of multiple lens.For example, optical system 210 can be by the light of form as described in Figure 1
System is constituted.But the form of the optical system 210 according to the present embodiment be not necessarily limited to Fig. 1 illustrated in shape
State.
Lens barrel 220 to house optical system 210 in the way of constituted.For example, lens barrel 220 can be the length comprising multiple lens
Cylinder form.Lens barrel 220 is constituted in the way of it can be moved along optical axis direction.For example, lens barrel 220 can be from housing 230
It is internal to be moved along optical axis direction.
Housing 230 to house lens barrel 220 in the way of constituted.For example, housing 230 can be with the diameter than lens barrel 220 more
Greatly, the longer cylinder form of length.
Actuator 240 is configured to make lens barrel 220 be moved along optical axis direction.Therefore, actuator 240 can include permanent magnet
242 and coil 244.Permanent magnet 242 is arranged in lens barrel 220, and coil 244 is arranged in housing 230.It is arranged in such a way
Permanent magnet 242 and coil 244 can be made by electromagnetic interaction lens barrel 220 along optical axis direction move.
Imageing sensor is arranged in housing 230.For example, imageing sensor can be arranged in one end of housing 230.Image is passed
Sensor can provide the image planes 270 that can be imaged the image formed by optical system 210.For example, the surface of imageing sensor can
Be for make through reflect photoimaging image planes 270.
In the above-described configuration, actuator 240 can be removed.For example, operator moves manually lens barrel 220
It is dynamic.Equally, the imageing sensor in above-mentioned composition can be removed.
The camera 200 for constituting in this way can realize predetermined times magnification by changing the position of lens barrel 220
Rate.Meanwhile, for the camera 200 according to the present embodiment, overall due to optical system 210 is moved along optical axis direction, because
This can eliminate asking for the reliability reduction of the definition reduction phenomenon and multiplying power caused by the part of optical system is moved
Topic.
Fig. 4 and Fig. 5 show the enlargement ratio state different from each other of the camera 200 according to an embodiment.
First multiplying power of camera 200 can be realized by making lens barrel 220 along the side shifting of image planes 270 as illustrated in fig. 4.
Here, the first multiplying power substantially can be determined in the range of 0.75~0.9.
Used as reference, the size of the object shot by the camera 200 of Fig. 4 is 19.15mm, by optical system 210
And the size of the image being imaged is 16.00mm (that is, the multiplying power of camera 200 is 0.82).
Second multiplying power of camera 200 can be realized by making lens barrel 220 to object side shifting as illustrated in fig. 5.Here,
Second multiplying power substantially can be determined in the range of 1.7~1.8.Used as reference, the second multiplying power according to Fig. 5 is 1.75.
Used as reference, the size of the object shot by the camera 200 of Fig. 5 is 9.14mm, by optical system 210
The size of the image of imaging is 16.00mm (that is, the multiplying power of camera 200 is 1.75).
Fig. 6 represents the modulation transfer function (MTF) of camera 200.As shown in fig. 6, the camera 200 according to the present embodiment is distinguished
Good MTF is presented under the first multiplying power and the second multiplying power.
Hereinafter, the camera 202 according to another embodiment is illustrated with reference to Fig. 7.As reference, in saying for being carried out to the present embodiment
In bright, for the above embodiments identical inscape used with the above embodiments identical drawing reference numeral, and save
Slightly for the detailed description of these inscapes.
Compared with the above embodiments, distinctive points are also to include variable lens barrel 250 to camera 202 according to the present embodiment.
For example, being disposed with variable lens barrel 250 in one end of lens barrel 220.For example, being disposed with variable lens barrel 250 in one end of lens barrel 220.
Variable lens barrel 250 is arranged in the image planes side of lens barrel 220.The image planes of lens barrel 220 are fixed in one end of variable lens barrel 250
Side, the other end of variable lens barrel 250 is fixed on one end of housing 230.Variable lens barrel 250 is constituted in length-adjustable mode.
For example, variable lens barrel 250 can be the bellows form that can be shunk or extend along the moving direction of lens barrel 220.
For the camera 202 being made up of mode as described above, from sealing of the one end of lens barrel 220 to image planes
Space ensured by variable lens barrel 250, therefore, according to demand, housing 230 can be saved.
The invention is not limited in embodiments illustrated above, as long as have in technical field belonging to the present invention basic
The people of knowledge, then can not depart from be recorded in the range of the purport of the technological thought of the invention of claims realize it is many
The change of sample and implement the present invention.
Claims (15)
1. a kind of optical system, including：
First lens group, is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power；
Second lens group, is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power；
Aperture, is arranged between first lens group and second lens group.
2. optical system as claimed in claim 1, wherein,
First lens group and second lens group are constituted in the way of comprising more than one pair of cemented lens respectively.
3. optical system as claimed in claim 1, wherein,
First lens group is made up of three pieces of lens with positive refractive power and two pieces of lens with negative refractive power.
4. optical system as claimed in claim 1, wherein,
First lens group continuously to arrange more than with positive refractive power three pieces of lens in the way of constituted.
5. optical system as claimed in claim 1, wherein,
Second lens group is made up of four pieces of lens with positive refractive power and two pieces of lens with negative refractive power.
6. optical system as claimed in claim 1, wherein,
First lens group includes a pair of engaging lens being arranged between unassembled lens.
7. optical system as claimed in claim 1, wherein,
Second lens group is located at the side compared to other disengaged lens closer to the position of object side with a pair of engaging lens
Formula is constituted.
8. optical system as claimed in claim 1, wherein,
First lens group and second lens group are made up of spherical lens.
9. optical system as claimed in claim 1, wherein,
First lens group is made up of the following lens being sequentially arranged since object side：
First lens, with positive refractive power；
Second lens, with positive refractive power；
3rd lens, with positive refractive power；
4th lens, with negative refractive power；And
5th lens, with negative refractive power.
10. optical system as claimed in claim 9, wherein,
Second lens group is made up of the following lens being sequentially arranged since object side：
6th lens, with positive refractive power；
7th lens, with positive refractive power；
8th lens, with negative refractive power；
9th lens, with positive refractive power；
Tenth lens, with positive refractive power；And
11st lens, with negative refractive power.
A kind of 11. cameras, including：
Housing；
Lens barrel, is arranged in the housing, is configured to be moved in the inside of the housing along optical axis direction；And
Optical system, is arranged in the lens barrel,
Wherein, the optical system includes：
First lens group, is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power；
Second lens group, is made up of the multiple lens with positive refractive power and the multiple lens with negative refractive power；
Aperture, is arranged between first lens group and second lens group.
12. cameras as claimed in claim 11, wherein,
First lens group is made up of the following lens in turn arranged since object side：
First lens, with positive refractive power；
Second lens, with positive refractive power；
3rd lens, with positive refractive power；
4th lens, with negative refractive power；And
5th lens, with negative refractive power.
13. cameras as claimed in claim 11, wherein,
Second lens group is made up of the following lens in turn arranged since object side：
6th lens, with positive refractive power；
7th lens, with positive refractive power；
8th lens, with negative refractive power；
9th lens, with positive refractive power；
Tenth lens, with positive refractive power；And
11st lens, with negative refractive power.
14. cameras as claimed in claim 11, including：
Imageing sensor, is arranged in the housing, and provide the picture for the picture imaging for making to be reflected by the optical system
Face.
15. cameras as claimed in claim 11, including：
Actuator, makes the lens barrel be moved along optical axis direction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2015-0179503 | 2015-12-15 | ||
| KR1020150179503A KR101771816B1 (en) | 2015-12-15 | 2015-12-15 | Optical Lens System and Camera including the Same |
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| CN106886085A true CN106886085A (en) | 2017-06-23 |
| CN106886085B CN106886085B (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610878525.4A Active CN106886085B (en) | 2015-12-15 | 2016-10-08 | Optical system and camera including this |
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| KR (1) | KR101771816B1 (en) |
| CN (1) | CN106886085B (en) |
Cited By (2)
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| WO2021007930A1 (en) * | 2019-07-18 | 2021-01-21 | 肯维捷斯（武汉）科技有限公司 | Micro imaging lens for short-distance imaging |
| WO2021128399A1 (en) * | 2019-12-28 | 2021-07-01 | 诚瑞光学(常州)股份有限公司 | Optical camera lens |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20170071308A (en) | 2017-06-23 |
| CN106886085B (en) | 2019-11-05 |
| KR101771816B1 (en) | 2017-08-25 |
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