CN206270578U - A kind of zoom cylinder mirror and optical imaging system - Google Patents

Abstract

The utility model provides a kind of zoom cylinder mirror and optical imaging system, is related to optical imaging field, and wherein zoom cylinder mirror includes group, beam splitting component, moveable refractive component and at least two groups zoom light paths with different enlargement ratios before cylinder mirror.Beam splitting component is injected after the object light organized before a mirror is incided by organizing outgoing before cylinder mirror, at least two beam beam splitting light are beamed into by beam splitting component, a branch of beam splitting light incides one group of zoom light path.Refractive component is used to move to the second place from first position, so that the beam splitting light outgoing after being processed through one group of zoom light path of wherein at least, wherein, the quantity of the quantity more than or equal to zoom light path of beam splitting light.Relative to prior art, the imaging of different multiplying in the case where object lens are not switched, can be exported.

Description

A kind of zoom cylinder mirror and optical imaging system

Technical field

The utility model is related to optical imaging field, and the change is used in particular to a kind of zoom cylinder mirror, and one kind The optical imaging system of times cylinder mirror.

Background technology

Zoom light path in current optical imaging system realizes zoom typically by the object lens of switching different multiplying, this The principle for planting light channel structure is simple, but needs to be equipped with the object lens of various different multiplyings, and generally also needs to adjust after object lens are switched The spacing of whole each optical element, and object lens price in itself is very high, to realize handoff functionality ring flange precision requirement also very Height, and whole light channel structure space hold volume and weight all than larger.

Utility model content

The purpose of this utility model is to provide a kind of zoom cylinder mirror and optical imaging system, can not switch object lens In the case of, export the imaging of different multiplying.

What embodiment of the present utility model was realized in：

In a first aspect, the utility model embodiment provides a kind of zoom cylinder mirror, it include group before a mirror, beam splitting component, Moveable refractive component and at least two groups zoom light paths with different enlargement ratios, incide the object light organized before the cylinder mirror The beam splitting component is injected after by organizing outgoing before the cylinder mirror, at least two beam beam splitting light are beamed into by the beam splitting component, per beam The beam splitting light incides zoom light path described in corresponding one group, and the refractive component is used to move to the from first position Two positions, so that the beam splitting light outgoing after being processed through zoom light path described in one group of wherein at least.

In the utility model preferred embodiment, at least two groups zoom light paths include the first zoom light path and second Zoom light path, at least two beam beam splitting light include the first beam splitting light and the second beam splitting light, and the first zoom light path includes the Group after one speculum and first mirror, the second zoom light path includes group after second mirror, and the first beam splitting light is by institute State the reflection of the first speculum and pass through to be organized after first mirror again and form the first imaging, the second beam splitting light passes through described the Organized after two mirrors and form the second imaging, when the refractive component is in the first position, the second imaging outgoing And be imaged with the first predeterminated position, when the refractive component is in the second place, first imaging is through described Refractive component outgoing simultaneously images in first predeterminated position.

In the utility model preferred embodiment, the refractive component is rotatable speculum group, is revolved when described The speculum group for turning is in the first position, and the rotatable speculum group is rotated during to preset direction, and described first Imaging is through the rotatable speculum group outgoing and images in the second predeterminated position, is exported by the second zoom light path Second imaging outgoing simultaneously images in first predeterminated position.

In the utility model preferred embodiment, the beam splitting component is semi-transparent semi-reflecting lens, and the refractive component includes Second speculum and the 3rd speculum, when the refractive component is in the first position, second imaging outgoing is simultaneously First predeterminated position is imaged in, when the refractive component is in the second place, first imaging is through described The reflection of second speculum is reflected through the 3rd speculum and images in first predeterminated position again.

In the utility model preferred embodiment, the beam splitting component is semi-transparent semi-reflecting lens, second speculum The back side is provided with extinction layer with the back side of the 3rd speculum, and the extinction layer incides second speculum for absorption The back side and the light of the 3rd mirror back surface.

In the utility model preferred embodiment, the beam splitting component is the first dichroscope, the refractive component bag The 4th speculum and the second dichroscope are included, when the refractive component is in the second place, the first imaging warp The 4th speculum reflection, then reflected through second dichroscope and image in first predeterminated position, described second Imaging is transmitted through second dichroscope and images in first predeterminated position.

In the utility model preferred embodiment, group is one chip lens, cemented doublet, one chip before the cylinder mirror One kind in the combination of the combination of lens, the combination of cemented doublet, one chip lens and cemented doublet；First mirror Afterwards group be one chip lens, cemented doublet, the combination of one chip lens, the combination of cemented doublet, one chip lens and double One kind in the combination of balsaming lens；Group is one chip lens, cemented doublet, the group of one chip lens after second mirror One kind in the combination of conjunction, the combination of cemented doublet, one chip lens and cemented doublet.

In the utility model preferred embodiment, the image plane of at least two groups of zoom light paths is respectively positioned on same putting down Face.

In the utility model preferred embodiment, the zoom cylinder mirror also includes achromatism component, the achromatism group Part is arranged at before the cylinder mirror group in the light path between the refractive component.

Second aspect, the utility model embodiment also provides a kind of optical imaging system, it include object lens, imaging device and Zoom cylinder mirror as described above, the zoom cylinder mirror is arranged in the light path between the object lens and the imaging device, from thing The object light of mirror outgoing incides the zoom cylinder mirror, by being received by the imaging device after zoom cylinder mirror outgoing.

The zoom cylinder mirror that the utility model is provided, cylinder mirror structure be divided into before a mirror group and with different enlargement ratios extremely Few two groups of zoom light paths, by changing the position of refractive component, may be such that zoom cylinder mirror exports the light of different enlargement ratios.This reality When being applied to optical imaging system with the zoom of new offer cylinder mirror, only need to be by adjusting the position of the refractive component in zoom cylinder mirror Put the picture that can obtain different multiplying.Compared to prior art, it is not necessary to switch the object lens of different multiplying, it is not required that adjustment is each The spacing of optical element, it is easy to adjust, is conducive to simplifying the structure of optical system, reduces cost.Secondly, the change of many light groups is realized The mobile optical element of imaging needs is less again, and the bore relative to each lens subassembly of prior art is smaller, not only causes entirely The volume-diminished of cylinder mirror structure, additionally provides more light channel structure optimization frees degree.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme of the utility model embodiment, below will be to be used needed for embodiment Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also Other related accompanying drawings are obtained with according to these accompanying drawings.

The light channel structure schematic diagram of the zoom cylinder mirror that Fig. 1 is provided for the utility model first embodiment；

Fig. 2 illustrates for the light channel structure when optical imaging system list short focus that the utility model first embodiment is provided are imaged Figure；

Fig. 3 illustrates for the light channel structure when optical imaging system list focal length that the utility model first embodiment is provided is imaged Figure；

Fig. 4 is light when the double imaging device double light paths of optical imaging system that the utility model second embodiment is provided are imaged Line structure schematic diagram；

Fig. 5 is the light when optical imaging system single imaging device double light path that the utility model 3rd embodiment is provided is imaged Line structure schematic diagram.

Icon：100- optical imaging systems；120- object lens；The imaging devices of 140- first；The imaging devices of 142- second；200- Zoom cylinder mirror；Group before 210- mirror；220- semi-transparent semi-reflecting lens；Group after first mirror of 230-；Group after second mirror of 232-；240- One speculum；The speculums of 242- second；The speculums of 244- the 3rd；The speculums of 246- the 4th；The dichroscopes of 250- first；252- Two dichroscopes.

Specific embodiment

It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally described in accompanying drawing herein and The component of the utility model embodiment for showing can be arranged and designed with a variety of configurations.

Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all Belong to the scope of the utility model protection.

It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi It is defined in individual accompanying drawing, then it need not be further defined and explained in subsequent accompanying drawing.

It is term " in ", " on ", D score, "front", "rear", " perpendicular, it is necessary to explanation in description of the present utility model Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, or It is the orientation or position relationship usually put when the utility model product is used, is for only for ease of description the utility model and letter Change description, rather than indicate imply signified device or element must have specific orientation, with specific azimuth configuration and Operation, therefore it is not intended that to limitation of the present utility model.Additionally, term " first ", " second ", " the 3rd ", " the 4th " etc. It is only used for distinguishing description, and it is not intended that indicating or implying relative importance.

Additionally, the term such as term " level ", " vertical ", " parallel ", " vertical " be not offered as requiring part abswolute level or Vertically, can be to be slightly tilted.It is not expression if " level " refers to only its direction with respect to more level for " vertical " The structure must be fully horizontal, and can be to be slightly tilted.

In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, Or be integrally connected；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to by intermediary It is indirectly connected to, can is two connections of element internal.For the ordinary skill in the art, can be managed with concrete condition Solve concrete meaning of the above-mentioned term in the utility model.

In addition, the term such as term " injecting ", " passing through ", " process ", " formation " be not offered as requiring light beam completely penetrate through or It is beam splitting, but describes a kind of optical change or optical treatment.If " passing through " refers to only that light beam passes through after the optical element Change optically is there occurs, light beam is processed and then is obtained the light required for implementing technical scheme or solving technical problem Beam, according to the difference of optical element in specific embodiment, it may be possible to which reflection is also likely to be transmission.In addition, " transmission " refers to light Beam incides a certain material interface and reflects and penetrate the phenomenon of the interface, relative with " reflection ".

A kind of zoom cylinder mirror is present embodiments provided, zoom cylinder mirror includes group, beam splitting component, moveable folding before cylinder mirror Optical assembly and at least two groups zoom light paths with different enlargement ratios.The object light organized before a mirror is incided by organizing outgoing before cylinder mirror After inject beam splitting component, and be beamed at least two beam beam splitting light.One group of corresponding zoom light is incided per beam beam splitting light Road, refractive component is used to move to the second place from first position, so that dividing after being processed through one group of zoom light path of wherein at least Beam light outgoing, to obtain the picture of corresponding enlargement ratio.

Wherein, the particular number of zoom light path, difference that can be as desired, by change the structure of beam splitting component come from Two groups start extension, such as in the zoom light path that can be formed after first beam splitting component beam splitting, add second Beam splitting component, you can the total quantity of lifting zoom light path, the like.The beam splitting component for being used can be semi-transparent semi-reflecting lens, The optical element or optical element group with beam splitting function such as dichroscope, optical prism.When the quantity of zoom light path is more than two During group, group is the optical element of each zoom light path appropriate mix before can also being directed to cylinder mirror, and is become by flange plate structure Switching between times light path, to meet the condition of zoom imaging.Preferably, the quantity of beam splitting light is equal to the quantity of zoom light path.When So, the quantity of beam splitting light can also be more than the quantity of zoom light path.

It should be noted that first position and the second place are a kind of exemplary descriptions.When zoom light path has two groups, the One position corresponds to one of which zoom light path, and the second place corresponds to another group of zoom light path.When zoom light path have two groups with When upper, first position can correspond to one group of zoom light path, and the second place can correspond to remaining any one group of zoom light path.

In description of the present utility model, refractive component refers to a kind of smooth governor motion, is mainly used in adjusting the side of light To, light intensity or spectrum parameter etc..The concrete structure of refractive component can be set according to the need for user, used as a kind of embodiment party Formula, refractive component can be by multiple speculum groups into speculum group.For example, when above-mentioned zoom light path has two groups, refractive power Component can include the second speculum and the 3rd speculum, the direction for changing light beam advance.As another embodiment, Refractive component can also be the optical element group being made up of speculum and dichroscope, and dichroscope is used to change the side of light beam To while a branch of broad-spectrum beam is separated into the different beam splitting light of two-way spectrum parameter, or by two-way difference spectrum parameter Light beam is combined into a light path.

In the present embodiment, zoom optical routing lens or lens are constituted with the combination of other optical elements such as speculum, can So that the object light of incidence through the picture for being processed into required enlargement ratio.Can be had by the lens for setting different enlargement ratios There is the zoom light path of different enlargement ratios.And the switching between different zoom light paths is capable of achieving the function of zoom imaging.In addition, In the zoom cylinder mirror structure that the utility model is provided, each optical element of zoom light path can be according to the reality of each zoom light path Demand carries out the setting of parameter designing and position to coordinate the setting of each zoom light path focal length.

In description of the present utility model, before each cylinder microscope group, such as cylinder mirror after group, first mirror after group and second mirror Group, can be one chip lens, cemented doublet, the combination of one chip lens, the combination of cemented doublet, one chip lens and One kind in the combination of cemented doublet.

In description of the present utility model, the first predeterminated position and the second predeterminated position are used to set imaging device, its position In in the image plane (image space focal plane) of corresponding zoom light path.In specific embodiment of the utility model, ensuring During switching zoom light path in the case of parfocalization, the first predeterminated position and the second predeterminated position are provided in design the utility model Just set during zoom cylinder mirror, in a particular embodiment, the first predeterminated position will not change with the second predeterminated position, at this In the optical imaging system of utility model specific embodiment, the position of object lens and imaging device will not also change.It is noticeable It is, under conditions of parfocalization is not needed, it is also possible to by other implementation methods, for example, adjusts the position of imaging device, or The distance between object lens and imaging device etc. is adjusted to complete the optimization as matter.

In specific embodiment of the utility model, each plane mirror for being used can be metal film plane reflection Mirror, the reflectivity of such as the first speculum, the second speculum, the 3rd speculum and the 4th speculum is about 90%, then by a piece of Speculum reflection can make light beam (energy) decay to 90%, and being reflected by two panels speculum can make beam attenuation to 81%, pass through Three sheets of reflecting mirrors reflection can make beam attenuation to 73%；For example, under identical lighting condition, before cylinder mirror after group and first mirror The illuminance of image plane of 40 times of light paths of group composition is 20 times of a quarters of light path of composition after group and second mirror before a mirror, is Keep the illuminance of image plane of two groups of zoom light paths essentially identical, the semi-transparent semi-reflecting lens that are used in specific embodiment of the utility model Reflection and transmission proportion can be preferably 85:15, i.e. reflectivity are about 85%, and transmissivity is about 15%.

In specific embodiment of the utility model, in order that the description of embodiment become more apparent from, light channel structure It is more simple, each optical element in zoom cylinder mirror structure, such as speculum, semi-transparent semi-reflecting lens or dichroscope, when light is incident Incident angle is 45 ° when on to the reflecting surface of speculum, semi-transparent semi-reflecting lens or dichroscope.But actually implementing the technical side When case, if it is able to ensure that the zoom cylinder mirror that the utility model is provided can reach necessary technique effect, or in order to More excellent effect is reached, the placing direction of above-mentioned each optical element can be adjusted according to different embodiments.

In description of the present utility model, the imaging device for being used can be camera, or eyepiece.In this practicality In new specific embodiment, the object lens for being used are infinity conjugate distance object lens, selected according to the difference of specific embodiment The model and parameter of object lens and imaging device are unfixed.

In specific embodiment of the utility model accompanying drawing, for more preferable, the clearer description beam sampling system Operation principle, has simply substantially distinguished the relative position relation between its optical element, can not constitute direction for light path, The strict limitation of the spacing between the size of optical element, the aperture of optical lens and optical element.In order to become apparent from area The light beam of the undue tread assembly beam splitting of lease making, the direction of beam splitting light is not strict yet to be limited according to reflection law or the law of refraction Fixed angle is represented.

First embodiment

Fig. 1 is refer to, the present embodiment provides a kind of zoom cylinder mirror 200, and it includes group 210, semi-transparent semi-reflecting lens before a mirror 220th, the first zoom light path, the second zoom light path and refractive component.First zoom light path and the second zoom light path have different Enlargement ratio.

Wherein, the first zoom light path organizes 230 after including the first speculum 240 and first mirror.Second zoom light path can be with Including organizing 232 after second mirror.Beam splitting component can be semi-transparent semi-reflecting lens 220.

230 are organized before cylinder mirror after group 210, semi-transparent semi-reflecting lens 220, the first speculum 240 and first mirror to be combined into the The focal length imaging optical path of one enlargement ratio, to organize organize 232 and be combined into after 210, semi-transparent semi-reflecting lens 220 and second mirror before cylinder mirror has The short focus imaging optical path of the second enlargement ratio.The specific enlargement ratio of focal length imaging optical path is by organizing 210 and first mirror before cylinder mirror The concrete structure of group 230 determines that the specific enlargement ratio of short focus imaging optical path is by group after group 210 before cylinder mirror and second mirror afterwards 232 concrete structure is determined.For example, the first enlargement ratio can be 40 times, the second enlargement ratio can be 20 times.The present embodiment In cylinder mirror before organize 210, first mirror after organize 230, second mirror after organize 232, can be cemented doublet.

Group 232 is arranged in same main shaft after 210, semi-transparent semi-reflecting lens 220 and second mirror are organized before cylinder mirror, semi-transparent semi-reflecting lens Transmitted light after 220 to the second mirror of reflected light path and semi-transparent semi-reflecting lens between 220 to the first speculum 240 between group 232 Road is vertical, and reflected light path and 220 to the second mirror of semi-transparent semi-reflecting lens between 230 are organized after the first mirror of speculum 240 to the first Transmitted light path afterwards between group 232 is parallel.

In the present embodiment, refractive component includes the second speculum 242 and the 3rd speculum 244.Second speculum 242 with The refractive component that 3rd speculum 244 is constituted is arranged at after first mirror and is organized after 232 after group 230 and second mirror, and can Switch between the first location and the second location.

Further, the back side of the second speculum 242 and the 3rd speculum 244 is provided with extinction layer, absorbable to incide Second speculum 242 and the light at the back side of the 3rd speculum 244.Specifically, extinction layer can be coated in the He of the second speculum 242 The delustring paint at the back side of the 3rd speculum 244.

In addition, the present embodiment additionally provides a kind of optical imaging system 100.As shown in Fig. 2 the optical imaging system 100 Including the zoom cylinder mirror 200 that object lens 120, the first imaging device 140 and the present embodiment are provided.Zoom cylinder mirror 200 is arranged on object lens 120 and first between imaging device 140, and the first imaging device 140 is arranged on the first predeterminated position, first predeterminated position In the image plane of zoom cylinder mirror 200, and the Optical Coaxis of 200 and first imaging device of object lens 120, zoom cylinder mirror 140.

When the refractive component is arranged at the first position, as shown in Fig. 2 the position of the second speculum 242 is located at Away from the side of group 232 after second mirror, the position of the 3rd speculum 244 is located at group after first mirror to group 230 after first mirror On 230 optical axis direction, group 210 is received and assembled from before the directional light tube mirror of the output of object lens 120, incides semi-transparent semi-reflecting lens On 220, it is divided into the mutually perpendicular reflected light of two beams and transmitted light.Reflected light by the first speculum 240 reflective surface Afterwards, into organizing 230 outgoing after first mirror, and the back side of the 3rd speculum 244 is incided, is arranged on the 3rd speculum 244 The extinction layer at the back side absorbs；Transmitted light organizes 232 after being directly incident on second mirror, by organizing 232 outgoing after second mirror after enter Imaging in first imaging device 140.

When the refractive component is arranged at the second place, as shown in figure 3, the second speculum 242 moves to former the The position of three speculums 244, the 3rd speculum 244 is moved to after second mirror on the major axes orientation of group 232, the second speculum The light path side between 232 to the 3rd speculums 244 is organized after optical path direction and second mirror between 242 to the 3rd speculums 244 To vertical, and the second speculum 242 with the placing direction of the 3rd speculum 244 and positioned at first position when it is identical.From object lens 120 Group 210 is received and assembled before the directional light tube mirror of output, is incided on semi-transparent semi-reflecting lens 220, is divided into two beams orthogonal Reflected light and transmitted light.Transmitted light incides disappearing for the back side of the 3rd speculum 244 directly by organizing 232 after second mirror Absorbed on photosphere；After reflective surface of the reflected light by the first speculum 240, into first mirror after organize 230 outgoing, And incide on the reflecting surface of the second speculum 242, incided after being reflected on the reflecting surface of the 3rd speculum 244, finally with With the coaxial direction of optical path direction that group 232 after 210 to the second mirror is organized before cylinder mirror incide in the first imaging device 140 into Picture.

In the description of the present embodiment, particularly, the distance of the speculum 240 of synchronous change semi-transparent semi-reflecting lens 220 and first, The distance of the second speculum 242 and the 3rd speculum 244, thus it is possible to vary the light path and parfocal distance of the first zoom light path；Change 230 are organized after first mirror, the focal length of the first zoom light path can be changed in the case where parfocalization requirement is met.

Preferably, the 230 to the second speculum 242, the second speculum 242 to the 3rd speculum 244, the are organized after first mirror Three the 244 to the first imaging devices of speculum 140 apart from sum with after first mirror group 230 focal length it is equal, after second mirror The distance of the 232 to the first imaging device 140 of group is equal with the focal length of group 232 after second mirror, i.e., group 230 and the after first mirror 232 parfocalizations are organized after two mirrors.

In the case where the zoom light path of two groups of different multiplyings that the present embodiment is provided is using single imaging device imaging situation, can pass through Simple translation realized by refractive component that the second speculum 242 and the 3rd speculum 244 are constituted the zoom cylinder difference of mirror 200 into As the switching of multiplying power.Set the second speculum 242 in zoom cylinder mirror 200 is with the sharpest edges of the 3rd speculum 244, one As in many light group structures the interval of each optical element be mostly fixed, it is difficult to be directly realized by the light path parfocalization of different multiplying, this When by adding the moveable refractive component being made up of the second speculum 242 and the 3rd speculum 244 to by first mirror The defocused laser beam long of group 230 is turned back afterwards, and extends 40 times of light paths of focal length light path simultaneously so that last by organizing 210 before cylinder mirror With after first mirror group 230 constitute 40 times of image planes of focal length imaging optical path, with by before cylinder mirror group 210 and second mirror after group The 232 20 times of image planes of short focus imaging optical path for constituting are in approximately the same plane, you can realize different multiplying in zoom cylinder mirror 200 Light path between parfocalization zoom.While condition required for meeting single imaging device photo-quality imaging, whole light is increased The optimization free degree in the structure of imaging system 100 is learned, the space of occupancy is reduced, cost has been saved.

Second embodiment

Refer to Fig. 4, the present embodiment provides a kind of zoom cylinder mirror 200, itself and the utility model first embodiment are maximum Difference is that refractive component is rotatable speculum group, the i.e. setting angle of the second speculum 242 and the 3rd speculum 244 Can rotate.

In a kind of specific embodiment of the present embodiment, the second speculum 242 can lead to the rotation of the 3rd speculum 244 Simple rotary clamping mechanism or manual regulation is crossed to complete.

Assuming that the setting direction of the second speculum 242 and the 3rd speculum 244 in above-mentioned first embodiment is defined as just Beginning direction.It is anti-by second when the refractive component that the second speculum 242 and the 3rd speculum 244 are constituted is adjusted to first position The direction for penetrating the speculum 244 of mirror 242 and the 3rd is rotated to preset direction from inceptive direction, the inceptive direction to the default side To rotated counterclockwise by angle be 90 °.Now, the light that 230 outgoing are organized after first mirror sequentially passes through the second speculum 242 and The outgoing of three speculum 244, organizes the direct outgoing of light of 232 outgoing after second mirror, realize two kinds of imagings of different enlargement ratios Export simultaneously, the first predeterminated position and the second predetermined position are imaged on respectively.

On the basis of first embodiment, the present embodiment is relative to the zoom cylinder provided in the utility model first embodiment For the structure of mirror 200, biggest advantage is to have used rotatable refractive component, and not influenceing, an independent zoom light path is defeated While light extraction, two light paths of different multiplying can be made to export simultaneously.

In addition, the present embodiment additionally provides a kind of optical imaging system 100.The optical imaging system 100 includes object lens 120th, the zoom cylinder mirror 200 that the first imaging device 140, the second imaging device 142 and the present embodiment are provided.

When the refractive component being made up of the second speculum 242 and the 3rd speculum 244 is located at the first position and rotation During to the preset direction, group 210 is received and assembled from before the directional light tube mirror of the output of object lens 120, is incided semi-transparent semi-reflecting On mirror 220, it is divided into mutually perpendicular reflected light and transmitted light.Transmitted light is incided directly by organizing 232 after second mirror Imaging in first imaging device 140；After reflective surface of the reflected light by the first speculum 240, into after first mirror 230 outgoing of group, and incide on the reflecting surface of the 3rd speculum 244, the reflecting surface of the second speculum 242 is incided after being reflected On, imaging in the second imaging device 142 is finally injected with the direction with the transmission parallel light.

The present embodiment is studied relative to the light that the use single imaging device provided in the utility model first embodiment is imaged As for the structure of system 100, biggest advantage is to have used including the first imaging device 140 and the second imaging device 142 Double imaging device imaging arrangements, while an independent zoom light path imaging is not influenceed, can make two light paths of different multiplying It is imaged simultaneously.

3rd embodiment

Refer to Fig. 5, the present embodiment provides a kind of zoom cylinder mirror 200, itself and the utility model first embodiment are maximum Difference is that in the zoom cylinder structure of mirror 200, beam splitting component replaces with the first dichroscope 250, refractive power by semi-transparent semi-reflecting lens 220 Group is replaced with by the 4th speculum 246 and after the speculum that component is then made up of the second speculum 242 and the 3rd speculum 244 Group after the inverse color separation that two dichroscope 252 is constituted.Wherein, the 4th speculum 246 acts on identical with the second speculum 242, and second Dichroscope 252 is identical to the selectivity of light beam spectrum with the tow sides of the first dichroscope 250, that is, to same spectra The transmissivity of the light of parameter is identical with reflectivity.

When the refractive component is arranged at the second place, 210 are organized from before the directional light tube mirror of the output of object lens 120 Receive and assemble, incided on the first dichroscope 250 with 45 ° of angles, be divided into orthogonal and spectrum parameter is different Reflected light and transmitted light.Transmitted light incides the back side of the second dichroscope 252 directly by organizing 232 after second mirror Transmission, and enter imaging in the first imaging device 140；After reflective surface of the reflected light by the first speculum 240, enter 230 outgoing are organized after first mirror, and are incided on the reflecting surface of the 4th speculum 246 with 45 ° of angles, after being reflected it is same with 45 ° of angles are incided and reflected on the front of the second dichroscope 252, and last and transmitted light is converged for light beam incides the first one-tenth As imaging in device 140.

The zoom cylinder mirror 200 that the present embodiment is provided is relative to the utility model first embodiment and the advantage of second embodiment It is not increase on the premise of the overall structure of optical imaging system 100 takes up room imaging device quantity is not increased, can Realize that two groups of light paths of different multiplying are imaged simultaneously.Using the first dichroscope 250 by the object light color separation of wide spectrum, the is recycled The imaging of two beam different multiplyings is combined into two dichroscopes 252 a branch of, to be carried due to two-beam spectral information and multiplying power letter Breath is different, and the different image of two width can be presented in the imaging system of imaging device, that is, realize two using single imaging device The zoom light path of group different multiplying is imaged simultaneously.

The combination of the first dichroscope 250 and the second dichroscope 252 that are provided in the present embodiment, is meeting photo-quality imaging Under conditions of, can be replaced the combination of corresponding other color separation devices and inverse color separation device.

230, second is organized after 210, first mirror is organized in the three above specific embodiment that the utility model is provided, before cylinder mirror The concrete structure of group 232 can extend after cylinder mirror, such as expand to double gluing achromatic lens, or in zoom cylinder mirror 200 Increase achromatism component in whole light path, to reduce the aberration increased newly in light path, improve the picture matter of optical imaging system 100.

In sum, cylinder mirror structure, is divided into before a mirror group and is put with difference by the zoom cylinder mirror that the utility model is provided At least two groups zoom light paths of big multiplying power, by changing the position of refractive component, may be such that zoom cylinder mirror exports different times magnifications The imaging of rate.When the zoom cylinder mirror that the utility model is provided is applied to optical imaging system, only need to be by adjusting zoom cylinder mirror The position of interior refractive component is the picture that can obtain different multiplying.Compared to prior art, it is not necessary to switch the thing of different multiplying Mirror, it is not required that the spacing of each optical element of adjustment, it is easy to adjust, be conducive to simplifying the structure of optical system, reduces cost.Its Secondary, realizing the zoom imaging of many light groups needs mobile optical element less, relative to the bore of each lens subassembly of prior art It is smaller, the volume-diminished of whole cylinder mirror structure is not only caused, additionally provide more light channel structure optimization frees degree.The above Preferred embodiment only of the present utility model, is not limited to the utility model, comes for those skilled in the art Say, the utility model there can be various modifications and variations.It is all within spirit of the present utility model and principle, that is made any repaiies Change, equivalent, improvement etc., should be included within protection domain of the present utility model.

Claims (10)

1. a kind of zoom cylinder mirror, it is characterised in that the zoom cylinder mirror includes group, beam splitting component, moveable refractive power before cylinder mirror Component and at least two groups zoom light paths with different enlargement ratios, before inciding the object light organized before the cylinder mirror by the cylinder mirror The beam splitting component is injected after group outgoing, at least two beam beam splitting light are beamed into by the beam splitting component, entered per Shu Suoshu beam splitting light Zoom light path described in corresponding one group is mapped to, the refractive component is used to move to the second place from first position, so that The beam splitting light outgoing after being processed through zoom light path described in one group of wherein at least.

2. zoom according to claim 1 cylinder mirror, it is characterised in that at least two groups zoom light paths include the first zoom Light path and the second zoom light path, at least two beam beam splitting light include the first beam splitting light and the second beam splitting light, first zoom Light path includes group after the first speculum and first mirror, and the second zoom light path includes group, described first point after second mirror Shu Guang is reflected again by organizing the first imaging of formation, the second beam splitting light after first mirror by first speculum The second imaging is formed by being organized after second mirror, when the refractive component is in the first position, described second Imaging outgoing and be imaged with the first predeterminated position, it is described the first one-tenth when the refractive component is in the second place As light is through the refractive component outgoing and images in first predeterminated position.

3. zoom according to claim 2 cylinder mirror, it is characterised in that the refractive component is rotatable speculum group, When the rotatable speculum group is in the first position, and the rotatable speculum group is rotated to preset direction When, first imaging is through the rotatable speculum group outgoing and images in the second predeterminated position, is become by described second Second imaging outgoing of times light path output simultaneously images in first predeterminated position.

4. zoom according to claim 2 cylinder mirror, it is characterised in that the beam splitting component is semi-transparent semi-reflecting lens, the folding Optical assembly includes the second speculum and the 3rd speculum, described the second one-tenth when the refractive component is in the first position As light outgoing and first predeterminated position is imaged in, it is described the first one-tenth when the refractive component is in the second place As light reflects through the 3rd speculum and image in first predeterminated position again through second speculum reflection.

5. zoom according to claim 4 cylinder mirror, it is characterised in that the back side of second speculum is anti-with the described 3rd The back side for penetrating mirror is provided with extinction layer, and the extinction layer incides second mirror back surface and the described 3rd for absorption The light of mirror back surface.

6. zoom according to claim 2 cylinder mirror, it is characterised in that the beam splitting component is the first dichroscope, described Refractive component includes the 4th speculum and the second dichroscope, when the refractive component is in the second place, described the One imaging reflects through the 4th speculum, then is reflected through second dichroscope and image in the described first default position Put, second imaging is transmitted through second dichroscope and images in first predeterminated position.

7. zoom according to claim 2 cylinder mirror, it is characterised in that group is one chip lens, double gluings before the cylinder mirror One kind in the combination of lens, the combination of one chip lens, the combination of cemented doublet, one chip lens and cemented doublet； Group is one chip lens, cemented doublet, the combination of one chip lens, the combination of cemented doublet, list after first mirror One kind in the combination of chip lens and cemented doublet；Group is one chip lens, cemented doublet, list after second mirror One kind in the combination of the combination of chip lens, the combination of cemented doublet, one chip lens and cemented doublet.

8. zoom according to claim 1 cylinder mirror, it is characterised in that the equal position of image plane of at least two groups of zoom light paths In same plane.

9. zoom according to claim 1 cylinder mirror, it is characterised in that also including achromatism component, the achromatism component Group is arranged at before the cylinder mirror in the light path between the refractive component.

10. a kind of optical imaging system, it is characterised in that including object lens, imaging device and such as any one of claim 1 to 9 Described zoom cylinder mirror, the zoom cylinder mirror is arranged in the light path between the object lens and the imaging device, goes out from object lens The object light penetrated incides the zoom cylinder mirror, by being received by the imaging device after zoom cylinder mirror outgoing.