CN109991734A - Optical device and its aberration compensating method - Google Patents
Optical device and its aberration compensating method Download PDFInfo
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- CN109991734A CN109991734A CN201711477112.6A CN201711477112A CN109991734A CN 109991734 A CN109991734 A CN 109991734A CN 201711477112 A CN201711477112 A CN 201711477112A CN 109991734 A CN109991734 A CN 109991734A
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- optical device
- compensating
- aberration
- compensating element
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
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- Optics & Photonics (AREA)
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Abstract
One aberration compensating method, it is adapted to compensate for the aberration of an optical device, wherein the optical device includes an at least outer cover and an at least lens group, wherein the lens group located off-axis is in the outer cover, comprising the following steps: a setting at least compensating element, is in the optical device；And outer cover aberration caused by the optical device is compensated with the compensating element,.
Description
Technical field
The present invention relates to photoelectric fields, especially optical device and its aberration compensating method.
Background technique
Optical device has a wide range of applications in daily life, generally comprises optical lens element.The light of traditional sense
Learning lens unit includes an at least lens group and a light processing element, and the light processing element can be the device for receiving light beam
The device of light beam can also be emitted.Whether the optical lens of which kind of form, the lens group in optical lens be it is essential, one
Plurality of light beams is presented after the optical path effect of the lens group in the form being required.
Optical device is implemented as a kind of optical instrument of precision, the especially lens group in optical lens, once lens
Situations such as position deviation or parts damages occur for a certain lens in group, the optical property of the optical lens just will receive very big
Influence.In addition, the optical lens needs of some specific types use under exceedingly odious environment, such as laser radar mirror
Head, on-vehicle lens etc. optical lens, this kind of optical lens need extremely strong environmental suitability and usability.In order to protect light
Camera lens is learned from the influence of external environment, in some optical lens, the lens group and the light processing element form one
Optics group, which, which is arranged in a protection location, is protected, specifically, the optics group is arranged at an outer cover quilt
Protection.
However, although the presence of outer cover protects the optics group free from the influence of the external environment to a certain extent,
It is in some optical devices, outer cover and optics group are arranged in off-axis mode, and such set-up mode can introduce aberration, to optics
The optical parameters such as the MTF/SPOT/ENERGY of group cause large effect, to influence the optical property of the optical lens.
In conclusion in order to enable some special optical lens are protected, so that such optical lens is in various evils
It can be applied in bad environment, need to be arranged an outer cover outside optics group, optics group is placed in the guarantor that the outer cover is formed
It is protected in shield space.However outer cover is arranged in a manner of off-axis with optics group at this time, so that the outer cover of optical lens can be to optics group
Aberration is introduced, to severely impact the optical property of optical lens, and then seriously affects the practical application of optical device.
Summary of the invention
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the optical device includes
An at least compensating element, and an outer cover, the compensating element, are set to the optical device, to compensate the outer cover to described
Aberration caused by the lens group of optical device, to promote the image quality of the lens group of the optical device.
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the compensating element, is in institute
The position stated in optical device is not limited, and by this method, facilitates the fabrication design of the optical device.
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the compensating element, is independent
It is set to optical device, simplifies the processing test step of the optical device.
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the compensating element, connection
In an at least lens for the lens group, so that the structure of the optical device is more compact.
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the compensating element, is set
The structure for not influencing the lens group is set, to compensate outer cover aberration caused by the lens group.
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the compensating element, is carried out
For a free-form curved mirror, so that the light path layout of the optical device is compact.
The purpose of the present invention is to provide an optical device and its aberration compensating methods, wherein the aberration compensating method
It can be applied to the optical device of polymorphic type.
In order to realize that the above goal of the invention, the present invention provide an aberration compensating method, be adapted to compensate for an optical device
Aberration, wherein the optical device include an at least outer cover and an at least lens group, wherein the lens group located off-axis in
The outer cover, comprising the following steps:
An at least compensating element, is set in the optical device；And
Outer cover aberration caused by the lens group is compensated with the compensating element,.
In some embodiments, wherein the aberration compensating method further includes steps of
The compensating element, is set between multiple lens of the lens group.
In some embodiments, wherein the aberration compensating method further includes steps of
The compensating element, is set between the lens group and a light processing element.
In some embodiments, wherein the aberration compensating method further includes steps of
The compensating element, is set between the lens group and the outer cover.
In some embodiments, wherein the compensating element, is independently disposed to the optical device.
In some embodiments, wherein the compensating element, is connected at least lens in the lens group.
In some embodiments, wherein the compensating element, is glued at the described of the lens group by a cemented component
Lens.
In some embodiments, wherein at least lens in the lens group are implemented as a functional complex, described
Functional complex has both the function of lens and the compensating element, simultaneously.
In some embodiments, further comprise:
Obtain the aberration for being provided with the optical device of the compensating element,；
Judge whether the aberration of the optical device meets a preset condition；
If the aberration of the optical device meets preset condition, completion is compensated；With
If the aberration of the optical device is unsatisfactory for preset condition, position and/or the optics of the compensating element, are adjusted
Parameter.
In some embodiments, wherein the compensating element, is implemented as one kind selected from free-form curved mirror and cylindrical mirror
Or combinations thereof.
According to another aspect of the present invention, the present invention provides an optical device, comprising:
An at least outer cover；
An at least lens group, wherein the lens group located off-axis is in the outer cover；And
An at least compensating element, the compensating element, are arranged at the optical device, to compensate the outer cover to described
Aberration caused by lens group.
In some embodiments, wherein the lens group includes multiple lens, and the optical device further comprises a light
Processing element, wherein the compensating element, is arranged between the multiple lens of the lens group, to compensate the outer cover to institute
State aberration caused by optics group.
In some embodiments, wherein the lens group includes multiple lens, and the optical device further comprises a light
Processing element, wherein the compensating element, is arranged between the lens group and the light processing element, it is described outer to compensate
Cover the aberration caused by the optics group.
In some embodiments, wherein the lens group includes multiple lens, and the optical device further comprises a light
Processing element, wherein the compensating element, is arranged between the lens group and the outer cover, to compensate the outer cover to institute
State aberration caused by optics group.
In some embodiments, wherein the compensating element, is selected from spherical surface cylindrical lens, aspheric design or freedom
One of curved mirror or combinations thereof.
In some embodiments, wherein the light processing element is implemented as a light-emitting component or a photosensitive element.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of an optical device according to prior art.
Fig. 2 to Fig. 4 is the structural schematic diagram of the optical device of an embodiment according to the present invention.
Fig. 5 is the structural schematic diagram of optical device according to another embodiment of the present invention.
Fig. 6 is that the structure of the optical device of the equivalent embodiment according to the abovementioned embodiments of the present invention based on Fig. 5 is shown
It is intended to.
Fig. 7 to Fig. 9 is the structural schematic diagram of optical device according to another embodiment of the present invention.
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.It defines in the following description
Basic principle of the invention can be applied to other embodiments, deformation scheme, improvement project, equivalent program and do not carry on the back
Other technologies scheme from the spirit and scope of the present invention.
It will be understood by those skilled in the art that in exposure of the invention, term " longitudinal direction ", " transverse direction ", "upper",
The orientation of the instructions such as "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without referring to
Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore above-mentioned art
Language is not considered as limiting the invention.
It is understood that term " one " is interpreted as " at least one " or " one or more ", i.e., in one embodiment,
The quantity of one element can be one, and in a further embodiment, the quantity of the element can be it is multiple, term " one " is no
It can be interpreted as the limitation to quantity.
As shown in Figure 1, an optical device of the prior art includes an at least outer cover 11, an at least lens group 12 and at least
One light processing element 13, wherein the lens group 12 is set to the optical path of the light processing element 13, the lens group 12
And the light processing element 13 forms an optics group 2, is protected wherein the optics group 2 is set to the outer cover 11.
Specifically, the outer cover 11 forms a guard space, the optics group 2 is arranged at the guard space and is protected
Shield, it is worth mentioning at this point that, the outer cover 11 can protect the optics group 2 to exempt from the interference of external environment, so that the light
Group 2 works under a good environment.
In an embodiment of the present invention, the light processing element 13 can be implemented as polymorphic type optical element, for example work as institute
When stating light processing unit 13 and being implemented as a light-emitting component, the light processing element 13 emits towards the direction of the lens group 12
At least one transmitting light beam, after the effect of the transmitting light beam by the lens group 12, with the form that is required environment outward
Transmitting.When the light processing element 13 is implemented as a photosensitive element, outer end light beam after the effect of the lens group 12,
It is received and is incuded by the light processing element 13, and generate corresponding optical information.The type of the light processing element 13 is not
It is limited by of the invention.Light beam that is being launched outward from the light processing element 13 or arriving at the light processing unit 13, warp
After crossing the effect of the lens group 12, exist in the form being required.
It is important to note, however, that the embodiment of the present invention optical device is implemented as an off-axis optics equipment, it is described outer
Cover 11 and 12 located off-axis of lens group.In other words, the central axis of outer cover 11 described in the light shaft offset of the lens group 12, from
And make the outer cover 11 that can cause aberration to the lens group 12.
Specifically, being sent out when the light processing element 13 is implemented as a light-emitting component from the light processing element 13
At least one transmitting light beam penetrated arrives at the lens group 12, the transmitting light beam handled by the lens group 12 after from the outer cover
11 launch outward.However due to the outer cover 11 and 12 located off-axis of lens group, therefore the transmitting light beam is by described outer
A degree of beam quality deviation can occur when covering 11, so that the transmitting beam deviation is pre-designed beam quality quilt
It propagates, influences the optical effect of the optics group 2.
When the light processing element 13 is implemented as a photosensitive element, an outer end light beam arrives at after the outer cover 11
The lens group 12, however when passing through the outer cover 11 a degree of beam quality deviation can occur for the outer end light beam,
So that the outer end beam deviation is pre-designed beam quality and is transmitted, the outer end light beam being shifted by arrives at the light processing
Element 13, to influence processing of the light processing element 13 to the outer end light beam.
Again alternatively, the optical device may include the optics group 2 more than two, two groups of optics groups 2 are by simultaneously at this time
It is set to the outer cover 11 to be protected, for example the optical device can be implemented as a laser radar.At this point, an optics group is outside
Emit light beam, the transmitting light beam is reflected to form an at least the reflected beams, the reflected beams quilt after arriving at a target object
Another optics group reception processing.And since 11 located off-axis of outer cover is in the optics group 2, so that the transmitting light beam
Offset is pre-designed beam quality and is transmitted, and similarly, the reflected beams, which also deviate, to be pre-designed beam quality and be transmitted, in this way
It will lead to the light beam that the light processing element 13 is handled and generate aberration.
In addition, the lens group 12 may include an at least lens, certainly, the number amount and type of the lens are unrestricted.
The people for being familiar with this technology should be understood that the number amount and type of lens described in the lens group 12 will affect the optics group 2
Optical property, but the working principle of the lens group 12 is all to arrange light beam to make light beam and be utilized in the form being required.
The outer cover 11 is arranged at the periphery of the optics group 2, to protect the optics group 2.In conclusion described outer
Cover 11 is set to 2 periphery of optics group, to protect the optics group 2, however since 11 located off-axis of outer cover is in described
Optics group 2, therefore the presence of the outer cover 11 can cause beam quality deviation to the optics group 2, and then influence the optics group 2
Optical property.In addition, the outer cover 11 can be carried out various shapes, the outer cover 11 can be implemented as a contour body or a ball
Body, certainly, it will be understood by those skilled in the art that outer cover 11 can not be complete sphere or contour body.That is, outer cover
11 only need to be set to the outside of the lens group 12, to play the protective effect to the optics group 2, do not need
The optics group 2 is fully received therein.
In order to compensate for aberration caused by the outer cover 11, and then improve the optical property of the optics group 2.The present invention provides
One optical device, wherein an at least compensating element, 10 is arranged in the optical device in the off-axis optics equipment, to compensate
The aberration of off-axis optics equipment is stated, so that the aberration of the off-axis optics equipment is compensated, improves the optical device
Optical property.Wherein the off-axis optics equipment includes the optics group 2 and the outer cover 11, and the outer cover 11 from
Axis is set to the optics group 2.
Specifically, the present invention provides an aberration compensating method, wherein the aberration compensating method is applied to compensation one
The aberration of off-axis optics equipment, wherein the off-axis optics equipment includes an at least outer cover 11 and an at least lens group 12, packet
Include following steps:
A: a setting at least compensating element, 10 is in the optical device；And
B: the outer cover 11 is compensated to aberration caused by the lens group 12 with the compensating element, 10.
In some embodiments, the compensating element, 10 be arranged at the lens group 12 and the light processing element 13 it
Between, in further embodiments, the compensating element, 10 is arranged in the lens group 12, in further embodiments, institute
Compensating element, 10 is stated to be arranged between the lens group 12 and the outer cover 11, in other embodiments, the compensation
Element 10 is connected to a certain lens in the lens group 12, to compensate the outer cover 11 to picture caused by the lens group 12
Difference.
Here, although as shown in Figure 1, optics group 2 includes lens group 12 and light processing element 13.Compensation method of the invention
Also it can be applied to only include lens group without the optical device including light processing element, it is only necessary to which outer cover is set off axis with lens group
The optical device set can be applied.
Certainly, in the case where forming optics group 2 by lens group 12 and light processing element 13, since compensating element, compensates for
Outer cover aberration caused by lens group also just accordingly compensates for outer cover aberration caused by entire optics group.
Also, it will be understood by those skilled in the art that in the feelings for being made of optics group 2 lens group 12 and light processing element 13
Under condition, the compensating element, 10 of setting needs whole consideration outer cover 11 to aberration caused by entire optics group 2.
In other words, the aberration compensating method further includes steps of
A1: the compensating element, 10 is set in a lens group 12 of the optics group 2.
Alternatively, the aberration compensating method further includes steps of
A2: the compensating element, 10 is set in the object side or image side of the lens group 12, to compensate 11 pairs of institutes of the outer cover
State aberration caused by optics group 2.
It is noted that the compensating element, 10 can be independently disposed to the optical device in both embodiments,
The a certain lens being also connected in the lens group 12.When the compensating element, 10 is independently disposed to the optical device,
Certain gap is formed between lens in the compensating element, 10 and the lens group 12.When the compensating element, 10 is connected to
When a certain lens of the lens group 12, the compensating element, 10 can bond or other connection types and the lens group 12
A special optics member can also be arranged in conjunction with the lens of the lens group 12 in lens connection, certainly, the compensating element, 10
Part, wherein the special optical element can be provided simultaneously with the function of lens and compensating element,.
In the step A2, the settable compensating element, 10 is in the lens group 12 and the light processing element 13
Between, at this point, the compensating element, 10 is arranged at the image side of the lens group 12.The compensating element, 10 be may also set up in institute
It states between lens group 12 and the outer cover 11, at this point, the compensating element, 10 is arranged at the object side of the lens group 12.At this
In the embodiment of invention, the object side that target object position is the compensating element, 10 is defined, defines light processing element place
Position is the image side of the compensating element, 10.
It is noted that the design of the compensating element, 10 is selected from spherical surface cylindrical lens, aspheric design or freely bent
One of face mirror or combinations thereof.In one embodiment of this invention, when the compensating element, 10 be placed in the lens group 12 with
When between the light processing element 13, the compensating element, 10 may be selected to be an off-axis free-form curved mirror.Make institute by this method
The layout for stating optical lens is more compact.
In addition, in some embodiments, for the aberration of the optical device by real-time compensation, i.e. designer can be according to institute
Position and/or optical parameter that aberration value judgement of the optical device before not compensating adjusts the compensating element, 10 are stated, to make
Obtaining the compensating element, 10 can compensate for the aberration of the optical device.
At this point, the aberration compensating method further includes steps of to obtain the institute for being provided with the compensating element, 10
State the aberration of optical device；Judge whether the aberration of the optical device meets a preset condition；If the picture of the optical device
Difference meets preset condition, then compensates completion；If being unsatisfactory for preset condition with the aberration of the optical device, the compensation is adjusted
The position of element and/or optical parameter.
The optical device described below compensated by the aberration compensating method in the present invention will be with the light
It learns equipment and is implemented as an optical device with off-axis aberration, can be a laser radar, also may be implemented as other light
Equipment is learned, the present invention is unrestricted in this regard.
As shown in Fig. 2, optical device according to a preferred embodiment of the invention is demonstrated, the optical device includes institute
Outer cover 11, the lens group 12 and the light processing element 13 are stated, wherein the lens group 12 and the optical processor 13
The optics group 2 is formed, wherein the outer cover 11 forms the guard space, the optics group 2 is placed in the guard space
It is middle to be protected.
The lens group 12 is set to the optical path of the light processing element 13, in other words, the lens group 12 and institute
The optical axis coincidence of light processing element 13 is stated, so that the optics group 2 has good optical appearance.It is noted that described
Light processing element 13 can be implemented as polymorphic type optical element, such as when the light processing unit 13 is implemented as a light-emitting component
When, the light processing element 13 passes through towards at least one transmitting light beam of the direction of the lens group 12 transmitting, the transmitting light beam
After the effect of the lens group 12, with the form environment transmitting outward being required.When the light processing element 13 is implemented as
When one photosensitive element, outer end light beam receives and incudes after the effect of the lens group 12, by the light processing element 13, and
Generate corresponding optical information.
It is noted that the optical device further comprises a compensating element, 100, wherein the compensating element, 100
It is arranged in the lens group 12 of the optics group 2, to compensate the outer cover 11 to aberration caused by the optics group 2.
Specifically, 2 located off-axis of optics group is in the outer cover 11, so that the presence of the outer cover 11 can be to the optics group
2 cause aberration, and in other words, the presence meeting of the outer cover 11 is so that the optics group 2 generates unnecessary aberration.The compensation member
Part 100 is set to the optics group 2, to compensate the outer cover 11 to aberration caused by the optics group 2.
Specifically, in an embodiment of the present invention, the lens group 12 includes three pieces lens, and three pieces lens are according to certain
Optical design be arranged, and three pieces lens optical path be overlapped, make the light beam quilt by the lens group 12 by this method
It arranges.But the people for being familiar with this technology should be understood that the number of lenses amount and type of the lens group 12 are not restricted by.
The compensating element, 100 is arranged in the lens group 12, specifically, the compensating element, 100 is settable
In the lens group 12 between any two lens, and it is spaced with the lens forming one.In other words, the compensating element, 100
It is independently disposed between the multiple lens of the lens group 12, to compensate the outer cover 11 to aberration caused by the optics group 2.
It is noted that the optical device may include an at least compensating element, 100, i.e., the described compensating element, 100
Quantity is unaffected in the present invention.In other words, the optical device may include two, and three, four or even more compensate
Element 100, the compensating element, 100 are independently disposed between the multiple lens of the lens group 12, to compensate the outer cover 11
To aberration caused by the optics group 2.
In an embodiment of the present invention, the lens group 12 of the optical device includes three pieces lens, the compensation member
Part 100 can be independently set between the first lens and the second lens, can also be independently set in the second lens and the third lens
Between, wherein first lens, second lens, the third lens are arranged according to certain order.It certainly, can be simultaneously
One compensating element, 100 is set between first lens and second lens, and another compensating element, 100 of setting is in institute
It states between the second lens and the third lens.Alternatively, multi-disc compensating element, 100 is arranged simultaneously in first lens and institute
It states between the second lens, the present invention is not restricted by this respect.
The compensating element, 100 is set to the optical path of the lens group 12, so that into the lens group 12
Light beam can be compensated by the compensating element, 100.It is noted that the compensating element, 100 is according to the outer cover 11
Type and shape are set, i.e., the described compensating element, 100 pointedly compensates aberration caused by the outer cover 11.The compensation member
Part 100 can be selected from according to the design of the outer cover one of spherical surface cylindrical lens, aspheric design or free-form curved mirror or its
Combination.
When the light processing element 13 is implemented as a light-emitting component, the transmitting light beam of the sending of light processing element 13
By the lens group 12, the transmitting light beam is by the compensating element, 100 to generate precompensation aberration, the hair after
Irradiating light beam can generate aberration using the outer cover 11, and pre-compensate for aberration and be set according to the aberration that outer cover generates, thus institute
Stating transmitting light beam can be to be pre-designed beam quality propagation.
Analogously, when the light processing element 13 is implemented as a photosensitive element, enter institute by the outer cover 11
The reception light beam for stating optics group 2 can generate aberration, and the reception light beam after can generate compensation using the compensating element, 100
Aberration, and aberration for compensation is set according to the aberration that outer cover generates, so that the reception light beam is to be pre-designed light beam matter
Amount is propagated.
In other words, the compensating element, 100 changes the beam quality of the light beam Jing Guo the lens group 12, the outer cover 11
Also it can change the beam quality of the light beam by the outer cover 11, however, the compensating element, 100 changes the beam quality of light beam
In a disguised form the outer cover 11 changes beam quality caused by the light beam, to compensate the light beam.Again in other words, a light beam passes through
A degree of beam quality deviation can be occurred by crossing the outer cover 11, which can occur using when the compensating element, 100
Corresponding beam quality deviation, so that the light beam is propagated with preparatory beam quality.
Fig. 5 is the embodiment of the optical device according to another embodiment of the present invention, wherein the optical device packet
The outer cover 11, the lens group 12 and the light processing element 13 are included, wherein the lens group 12 and the light processing
Device 13 forms the optics group 2, wherein the outer cover 11 forms the guard space, the optics group 2 is placed in the protection
It is protected in space, and 2 located off-axis of optics group is in the outer cover 11.
Unlike upper one embodiment, the optical device includes an at least compensating element, 200, wherein the compensation
Element 200 is independently set between the lens group 12 and the light processing element 13, to compensate 11 pairs of institutes of the outer cover
State beam quality deviation caused by optics group 2.This mode does not change the knot of the lens group 12 and the light processing element 13
Structure, and reduce the manufacture difficulty and cost of manufacture of the optical device.
It is noted that when the compensating element, 200 is independently set in the lens group 12 and the light processing member
When between part 13, form a gap between the compensating element, 200 and the lens group 12, the compensating element, 200 with it is described
Also a gap is formed between light processing element 13.
It is noted that the compensating element, 200 is set to the optical path of the optics group 2, and in other words, the compensation member
Part 200 is arranged between the lens group 12 and the light processing element 13, and optical axis coincidence is in the light of the optics group 2
Axis.
When the light processing element 13 is implemented as a light-emitting component, the transmitting light beam of the sending of light processing element 13
By the lens group 12, the transmitting light beam is by the compensating element, 200 to generate precompensation aberration, the hair after
Irradiating light beam can generate aberration using the outer cover 11, and pre-compensate for aberration and be set according to the aberration that outer cover generates, thus institute
Stating transmitting light beam can be to be pre-designed beam quality propagation.
Analogously, when the light processing element 13 is implemented as a photosensitive element, enter institute by the outer cover 11
The reception light beam for stating optics group 2 can generate deviation, and the reception light beam after can generate compensation using the compensating element, 200
Aberration, and aberration for compensation is set according to the aberration that outer cover generates, so that the reception light beam is to be pre-designed light beam matter
Amount is propagated.
It is noted that the compensating element, 200 is set according to the type and shape of the outer cover 11, i.e., the described benefit
It repays element 200 and pointedly compensates the outer cover 11 to aberration caused by the optics group 2.The compensating element, 200 can basis
The design of the outer cover is selected from one of spherical surface cylindrical lens, aspheric design or free-form curved mirror or combinations thereof.
In addition, that is, described optical device can it is noted that the optical device may include multiple compensating element,s 200
Including two, three, four or even more a compensating element,s 200.The compensating element, 200 may be placed at the lens group 12
It is interior, it also may be placed between the lens group 12 and the light processing element 13.In other words, in same optical device, institute
Stating compensating element, 200 can be set to simultaneously in the lens group 12, and be set to the lens group 12 and the light processing member
Between part 13.In addition, in some embodiments, multiple groups compensating element, 200 is set to the lens group 12 and the light processing member
Between part 13, to complete the beam compensation to the optics group 2 jointly.
Fig. 6 is the schematic diagram of the optical device of an equivalent embodiment according to the abovementioned embodiments of the present invention, wherein described
Optical device includes the outer cover 11, the lens group 12 and the light processing element 13, wherein the lens group 12 and
The optical processor 13 forms the optics group 2, wherein the outer cover 11 forms the guard space, the optics group 2 is set to
It is protected in the guard space, and 2 located off-axis of optics group is in the outer cover 11.
Unlike upper one embodiment, the optical device includes a compensating element, 300, wherein the compensating element,
300 are independently set between the lens group 12 and the outer cover 11, are caused with compensating the outer cover 11 to the optics group 2
Beam quality deviation.This mode does not change the structure of the lens group 12 and the light processing element 13, and described in reduction
The manufacture difficulty and cost of manufacture of optical device.
It is noted that the compensating element, 300 is independently set in the object side of the lens group 12, and it is set to institute
State the optical path of optics group 2.When the compensating element, 300 is independently disposed between the lens group 12 and the outer cover 11,
An interval is formed between the compensating element, 300 and lens group 12, is also formed between the compensating element, 300 and the outer cover 11
One interval.
It is noted that the compensating element, 300 is set according to the type and shape of the outer cover 11, i.e., the described benefit
It repays element 300 and pointedly compensates the outer cover 11 to aberration caused by the optics group 2.The compensating element, 300 can basis
The design of the outer cover is selected from one of spherical surface cylindrical lens, aspheric design or free-form curved mirror or combinations thereof.
In addition, in some embodiments, multiple groups compensating element, 300 is arranged at the object side of the lens group 12, with common
The outer cover 11 is compensated to aberration caused by the optics group 2.
Fig. 7 is the structural schematic diagram of optical device according to another embodiment of the present invention, wherein the optical device packet
The outer cover 11, the lens group 12 and the light processing element 13 are included, wherein the lens group 12 and the light processing
Device 13 forms the optics group 2, wherein the outer cover 11 forms the guard space, the optics group 2 is placed in the protection
It is protected in space, and 2 located off-axis of optics group is in the outer cover 11.
Unlike other embodiments, the optical device includes an at least compensating element, 400, wherein the compensation is first
Part 400 is connected to the lens in the lens group 12, to compensate the outer cover 11 to aberration caused by the optics group 2.Or
It says, in an embodiment of the present invention, the compensating element, 400 synthesizes the lens in the lens group 12, to form at least one
Functional complex 14, wherein the functional complex 14 includes a lens and an at least compensating element, 400, the function and service
Body 14 can be provided simultaneously with the function of lens and the compensating element, 400.
The compensating element, 400 is connected to the lens in the lens group 12, to form the functional complex 14.?
In one embodiment of the invention, the compensating element, 400 is glued at the lens, i.e., the described compensating element, 400 and the lens
Between connected by a cemented component, the cemented component connects the compensating element, 400 and the lens.It is worth mentioning
It is that the cemented component does not influence the optical function of the compensating element, 400 and the lens, only serves the connection lens
With the effect of the compensating element, 400.
In addition, in an embodiment of the present invention, the lens group 12 includes four lens, and the lens are according to certain light
Learn order arrangement.It is noted that four lens of the lens group 12 are from the outer cover 11 towards the light processing element
13 direction, is respectively implemented as the first lens, the second lens, the third lens and the 4th lens, and the 4th lens are close
The light processing element 13.In one embodiment of this invention, the compensating element, 400 is glued at the 4th lens, i.e. institute
Compensating element, 400 is stated to be glued in the lens group 12 near a piece of lens of the light processing element 13.Certainly, described
The number amount and type of lens in microscope group 12 are not limited by of the invention.
In addition, the compensating element, 400 may be placed in the lens group 12, the lens group 12 also may be placed at
Object side and image side, it is unique unlike, the compensating element, 400 is connected to the lens group 12 by certain connection type
Lens.For example, in an embodiment of the present invention, the compensating element, 400 is connected to the 4th lens to form the function
Energy complex 14, wherein the compensating element, 400 may be placed at the 4th lens close to the one of the light processing element 13
Side also may be placed at the 4th lens close to the side of the third lens.
When the compensating element, 400 is arranged at the 4th lens close to the side of the light processing element 13, institute
State the image side that compensating element, 400 is arranged at the lens group 12.When the compensating element, 400 is arranged at the 4th lens
Close to the side of the third lens, the compensating element, 400 is arranged in the lens group 12.
In addition, in some embodiments, the compensating element, 400 may be placed in the lens group 12, and with it is described
Any lens combination of lens group 12 forms the functional complex 14.In another embodiment, the compensating element, 400 is set
It is placed in first lens, it is worth mentioning at this point that, the compensating element, 400 is glued at first lens to form the function
Complex 14, and the compensating element, 400 can be placed in the lens group 12, may also set up in the lens group 12 with it is described
Between outer cover 11.
The compensating element, 400 is set according to the type and shape of the outer cover 11, i.e., the described compensating element, 400 is directed to
Compensate aberration caused by the outer cover 11 to property.The compensating element, 400 can be selected from off-axis free according to the design of the outer cover
Curved mirror or column throw one kind or combinations thereof of mirror.It is noted that when the compensating element, 400 is implemented as off-axis freely song
When the mirror of face, the layout of the optical device is more compact.
In addition it is noted that the optical device may include a compensating element, group, wherein the compensating element, group packet
Include one kind of compensating element, or combinations thereof that any of the above embodiment is mentioned, in other words, the compensating element, that above embodiments are mentioned
Can combination settings in same optical device.For example, the optical device may include being independently disposed in the lens group 12
The compensating element, 100, may also comprise be independently disposed to it is described between the lens group 12 and the light processing element 13
Compensating element, 200 may also comprise the compensating element, 400 for being glued at a lens of the lens group 12, and the present invention is in this side
Face is unrestricted.
In addition, it should be understood by those skilled in the art that foregoing description and the embodiment of the present invention shown in the drawings are only made
The present invention is not intended to limit for citing.The purpose of the present invention has been fully and effectively achieved.Function of the invention and structure are former
Reason has been shown in embodiment and explanation, and under without departing from the principle, embodiments of the present invention can have any deformation
Or modification.
Claims (19)
1. an aberration compensating method is adapted to compensate for the aberration of an optical device, wherein the optical device includes outside at least one
Cover and an at least lens group, wherein the lens group located off-axis is in the outer cover, which is characterized in that
The following steps are included:
An at least compensating element, is set in the optical device；And
Outer cover aberration caused by the lens group is compensated with the compensating element,.
2. aberration compensating method according to claim 1, wherein the aberration compensating method further comprises following step
It is rapid:
The compensating element, is set between multiple lens of the lens group.
3. aberration compensating method according to claim 1, wherein the aberration compensating method further comprises following step
It is rapid:
The compensating element, is set between the lens and a light processing element of the lens group.
4. aberration compensating method according to claim 1, wherein the aberration compensating method further comprises following step
It is rapid:
The compensating element, is set between the lens and the outer cover of the lens group.
5. according to claim 1 to 4 any aberration compensating methods, wherein the compensating element, is independently disposed to described
Optical device.
6. according to claim 1 to 4 any aberration compensating methods, wherein the compensating element, is connected to the lens
An at least lens in group.
7. aberration compensating method according to claim 6, wherein the compensating element, is glued at institute by a cemented component
State the lens of lens subassembly.
8. according to claim 1 to 4 any aberration compensating methods, wherein at least lens quilt in the lens group
It is embodied as a functional complex, the functional complex has both the function of lens and the compensating element, simultaneously.
9. further comprising to 4 any aberration compensating methods according to claim 1:
Obtain the aberration for being provided with the optical device of the compensating element,；
Judge whether the aberration of the optical device meets a preset condition；
If the aberration of the optical device meets preset condition, completion is compensated；With
If the aberration of the optical device is unsatisfactory for preset condition, position and/or the optical parameter of the compensating element, are adjusted.
10. aberration compensating method according to claim 1, wherein the compensating element, is implemented as selected from free form surface
Mirror and one kind of cylindrical mirror or combinations thereof.
11. an optical device characterized by comprising
Outer cover；
Lens group, wherein the lens group located off-axis is in the outer cover；And
Compensating element, the compensating element, are arranged at the optical device, are caused with compensating the outer cover to the lens group
Aberration.
12. optical device according to claim 11, wherein the lens group includes multiple lens, the optical device
It further comprise a light processing element, wherein the compensating element, is arranged between the multiple lens.
13. optical device according to claim 11, wherein the lens group includes multiple lens, the optical device
Further comprise a light processing element, wherein the compensating element, be arranged at the multiple lens and the light processing element it
Between.
14. optical device according to claim 11, wherein the lens group includes multiple lens, the optical device
It further comprise a light processing element, wherein the compensating element, is arranged between the multiple lens and the outer cover.
15. 1 to 14 any optical device according to claim 1, wherein the compensating element, is separately set in the light
Equipment is learned, forms a gap between the compensating element, and multiple lens of the lens group.
16. 1 to 14 any optical device according to claim 1, wherein the compensating element, is connected to the optics and sets
A standby at least lens.
17. optical device according to claim 16, wherein the compensating element, is glued at described by a cemented component
Lens.
18. optical device according to claim 11, wherein the compensating element, be implemented as selected from free-form curved mirror and
One kind of cylindrical mirror or combinations thereof.
19. 2 to 14 any optical device according to claim 1, wherein the light processing element is implemented as one and shines
Element or a photosensitive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711477112.6A CN109991734A (en) | 2017-12-29 | 2017-12-29 | Optical device and its aberration compensating method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711477112.6A CN109991734A (en) | 2017-12-29 | 2017-12-29 | Optical device and its aberration compensating method |
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| CN201711477112.6A Pending CN109991734A (en) | 2017-12-29 | 2017-12-29 | Optical device and its aberration compensating method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142991A1 (en) * | 2022-01-27 | 2023-08-03 | 华为技术有限公司 | Lidar and device having detection function |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2385411A1 (en) * | 2010-05-04 | 2011-11-09 | MBDA France | Aberration correction method within an optical apparatus observing a field through a window |
-
2017
- 2017-12-29 CN CN201711477112.6A patent/CN109991734A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2385411A1 (en) * | 2010-05-04 | 2011-11-09 | MBDA France | Aberration correction method within an optical apparatus observing a field through a window |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023142991A1 (en) * | 2022-01-27 | 2023-08-03 | 华为技术有限公司 | Lidar and device having detection function |
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