Utility model content
The technical issues of the utility model solves is easy to provide a kind of adjust, and adjusts the small angle lens of workload and adjusts
Device.
The purpose of this utility model is to provide a kind of lens adjustment devices to overcome or at least mitigate the upper of the prior art
State at least one of defect.
To achieve the above object, the utility model provides a kind of lens adjustment device, and the lens adjustment device includes:Mirror
Head adjusting bracket, pedestal, adjusts compression spring and lock-screw at camera lens fixing bracket,
The camera adjusting holder is fixedly connected with the pedestal,
The camera lens fixing bracket is for installing camera lens, and the camera lens fixing bracket is connected with the pedestal in a manner of flexural pivot
It connects,
The adjusting compression spring is resiliently arranged between the camera adjusting holder and camera lens fixing bracket, and one end is against institute
State camera adjusting holder, the other end against the camera lens fixing bracket,
Lock-screw via of the lock-screw on the camera adjusting holder and screw to the camera lens and fix
In adjusting threaded hole on holder.
Preferably, the pedestal is provided with hemispherical groove, is provided with hemispherical projections on the camera lens fixing bracket, institute
Hemispherical projections support cooperation is stated in the hemispherical groove, to realize between the camera lens fixing bracket and the pedestal
Flexural pivot mode connects.
Preferably, each lock-screw corresponds to an adjusting compression spring, and each lock-screw passes through the adjusting corresponding to it
Compression spring.
Preferably, the quantity of the lock-screw is three, and distribution triangular in shape.
Preferably, the lock-screw via is kidney slot, three lock-screw distributions in equilateral triangle, a locking
Screw is directly on top, and one is located at lower left, and one is located at lower right, lock-screw corresponding with the lock-screw of surface
Via is left and right kidney-shaped, and lock-screw via corresponding with the lock-screw of lower left and lower right is upper and lower kidney-shaped.
Preferably, the lens adjustment device further comprises that supporting screw, the supporting screw are screwed in the camera lens
In support threaded hole in adjusting bracket, and its end is against the camera lens fixing bracket.
Preferably, the camera adjusting holder is provided with the threaded post of protrusion, institute in the side far from camera adjusting holder
It states and is formed with the support threaded hole in threaded post.
Preferably, being spaced in the range of 3-4mm between the camera adjusting holder and camera lens fixing bracket.
Preferably, the camera adjusting holder is threadedly coupled part with the pedestal and is fixedly connected.
The utility model also provides a kind of video camera, and the video camera includes camera lens and lens adjustment device, the camera lens
Regulating device is lens adjustment device as described above, and the camera lens is fixedly connected with the camera lens fixing bracket.
The lens adjustment device of the utility model uses the structure of flexural pivot+adjusting compression spring+lock-screw, to carry out camera lens angle
Degree is adjusted, and is had the advantages that simple in structure, easy to adjust.
Specific implementation mode
In the accompanying drawings, it indicates same or similar element using same or similar label or there is same or like function
Element.The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
Term "center", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " perpendicular in the description of the present invention,
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "top", "bottom" "inner", "outside" is orientation based on ... shown in the drawings or position
Relationship is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply the indicated device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore should not be understood as to scope of protection of the utility model
Limitation.
Fig. 1 is the decomposition diagram according to the lens adjustment device of one embodiment of the utility model.Camera lens tune shown in FIG. 1
Regulating device includes:Camera adjusting holder 1, pedestal 4, adjusts compression spring 5 and lock-screw 6 at camera lens fixing bracket 2.It is appreciated that
It is that camera adjusting holder 1, pedestal 4, adjusts compression spring 5 and the concrete shape of lock-screw 6, structure, material at camera lens fixing bracket 2
It can be arranged as required to, and be not limited to the embodiment of diagram.
Although camera lens 3 is shown in FIG. 1, camera lens 3 is not necessarily a part for lens adjustment device.
Camera adjusting holder 1 is fixedly connected with pedestal 4.In the illustrated embodiment, camera adjusting holder 1 passes through with pedestal 4
Threaded connector is removably fixed together.In an alternate embodiment of the invention, camera adjusting holder 1 is soldered to pedestal 4, or
Person is integrally formed with pedestal 4.
Referring to Fig. 1 and Fig. 3, camera adjusting holder 1 includes 11, two side plates 12 of adjustable plate and the connecting plate positioned at bottom
13.Camera adjusting holder 1 by across connecting plate 13 and screw on pedestal 4 install threaded hole 42 in threaded connector fix.
It is in frame structure that side plate 12, which is mainly used to allow camera adjusting holder 1, to improve the intensity of camera adjusting holder 1.
Camera lens fixing bracket 2 is for installing camera lens 3, and camera lens fixing bracket 2 is connect with the pedestal 4 in a manner of flexural pivot.
Threaded connector may be used to install camera lens 3 in camera lens fixing bracket 2, can also use any modes appropriate such as bayonet connection
To install camera lens.After installation is complete, camera lens fixing bracket 2 and camera lens 3 are integrated in movement.
Camera lens fixing bracket 2 and pedestal 4 can be connect to realize in a manner of flexural pivot by any structure appropriate.Implement in diagram
In example, pedestal 4 is provided with hemispherical groove 41, and hemispherical projections 21 are provided on camera lens fixing bracket 2.Hemispherical projections 21
Support cooperation connects in the hemispherical groove 41, to realize in a manner of the flexural pivot between the camera lens fixing bracket 2 and the pedestal 4
It connects.
Advantageously, the lowest part in camera lens fixing bracket 2 is arranged in hemispherical projections 21.It should further be appreciated that hemispherical is convex
21 are played to be arranged in the lower section of camera lens fixing bracket 2 and the center of gravity of the component of the composition of camera lens 3.It is thus possible to eliminate as much as gravity
Influence to optical center line orientation.
It should be pointed out that " hemispherical " herein should do the understanding of broad sense, including to be slightly larger than standard hemispheric
Shape also includes being slightly less than hemispheric shape.Furthermore, it is possible to which the structures such as local notch are set as desired.
It may also be noted that camera lens fixing bracket 2 can also be connect using such as bulb with ball-and-socket with pedestal 4, shaft coupling
Device connection etc structure come realize flexural pivot connect.
Referring to Fig. 1 and Fig. 4, camera lens fixing bracket 2 includes riser 22 and bottom plate 23.Riser 22 and bottom plate 23 are generally mutually
It is vertically arranged.Bottom plate 23 closes on the setting of pedestal 4, and the lower surface of bottom plate 23 is provided between pedestal 4 at a distance from enough, to avoid
Interfere rotation of the camera lens fixing bracket 2 relative to pedestal 4.Hemispherical projections 21 are arranged in the downside of bottom plate 23.
It adjusts compression spring 5 to be resiliently arranged between camera adjusting holder 1 and camera lens fixing bracket 2, one end (left side in Fig. 1
End) against the camera adjusting holder 1, the other end (right end in Fig. 1) is against the camera lens fixing bracket 2.To so that mirror
Head adjusting bracket 1 and camera lens fixing bracket 2 have the trend being located remotely from each other.In this way, carrying out angle lens tune with lock-screw 6
When section so that lock-screw 6 remains at the state of tension.In one embodiment, it is with elastic wire system to adjust compression spring 5
The wind spring made, material diameter 0.7-1.2mm.But the utility model is without being limited thereto.For example, adjust compression spring 5 can also be with
The elastic cylindrical body of rubber elastomeric material manufacture.
Lock-screw via 112 of the lock-screw 6 on camera adjusting holder 1 and screw to the camera lens fixing bracket
In adjusting threaded hole 221 on 2.That is, the head of lock-screw 6 is located at the outside of camera adjusting holder 1 (in Fig. 1
Left side), and the thread segment of lock-screw 6 is screwed in the adjusting threaded hole 221 on camera lens fixing bracket 2.Pass through lock-screw 6
Rotation, the privileged site of camera adjusting holder 1 and the distance between the privileged site of camera lens fixing bracket 2 can be adjusted, by
This makes camera lens fixing bracket 2 be rotated around hemispherical projections 21, to realizing to the angular adjustment of camera lens fixing bracket 2,
And then angular adjustment is carried out to camera lens.
In one embodiment, each lock-screw 6 corresponds to an adjusting compression spring 5, and each lock-screw 6 passes through it
Corresponding adjusting compression spring 5.In this way, being conducive to adjust the limit and installation of compression spring 5, it is also beneficial to adjust compression spring 5 more effectively
Tense corresponding lock-screw 6.
In the illustrated embodiment, the quantity of lock-screw 6 is three, and distribution triangular in shape.
It is understood that be provided with gap between lock-screw via 112 and lock-screw 6, such as setting is unilateral
Gap is between 0.3mm-0.5 millimeters, to allow to carry out angular adjustment.Advantageously, as shown, lock-screw via 112
For kidney slot.Kidney slot refers to that the size on the direction initialization of hole is more than and the size in direction initialization vertical direction.For example,
Left and right kidney-shaped is the size that the size of finger-hole in the lateral direction is more than in upper and lower directions.Three lock-screws 6 are in equilateral triangle
Shape is distributed.One lock-screw 6 is directly on top (surface for being substantially located at hemispherical projections 21), and one is located at lower-left
Side, one be located at lower right, lock-screw via corresponding with the lock-screw 6 of surface be left and right kidney-shaped, with lower left and
The 6 corresponding lock-screw via of lock-screw of lower right is upper and lower kidney-shaped.To, prevent in adjustment process occur screw with
The stuck situation of camera adjusting holder.As shown in Figure 1, lens adjustment device further comprises supporting screw 7.Supporting screw 7 revolves
It is screwed in the support threaded hole on the camera adjusting holder 1, and its end is against the camera lens fixing bracket 2.Referring to Fig. 3,
Camera adjusting holder 1 is provided with the threaded post 111 of protrusion in the side far from camera adjusting holder 1, shape in the threaded post 111
At there is the support threaded hole.
In the illustrated embodiment, four supporting screws 7 are provided with.The lock-screw 6 for closing on lower left and lower right, respectively sets
Supporting screw 7 there are one setting;And the lock-screw 6 right over closing on, there are two supporting screws 7 for setting.It is understood that
Three supporting screws 7 can be only set.For example, the lock-screw 6 right over closing on, is only arranged a supporting screw 7.
In one alternate embodiment, the model for being spaced in 3-4mm between camera adjusting holder 1 and camera lens fixing bracket 2
In enclosing.The interval so that angular adjustment not only can be well realized, but also is avoided that the waste in space, to realize total
Compactedness.It is understood that the interval between camera adjusting holder 1 and camera lens fixing bracket 2 refers to extending in lock-screw 6
The interval in direction, and refer at the interval that camera adjusting holder 1 and camera lens fixing bracket 2 are mutually parallel under state.More specifically
Ground, the interval refer to the interval between the adjustable plate 11 of camera adjusting holder 1 and the riser 22 of camera lens fixing bracket 2.
The utility model also provides a kind of video camera, and the video camera includes camera lens 3 and lens adjustment device, the camera lens
Regulating device is lens adjustment device as described above, and the camera lens 3 is fixedly connected with the camera lens fixing bracket 1.
The lens adjustment device of the utility model uses the structure of flexural pivot+adjusting compression spring+lock-screw, to carry out camera lens angle
Degree is adjusted, and is had the advantages that simple in structure, easy to adjust.
The assembly method of the lens adjustment device of the utility model is:It is followed successively by from left to right:Lock-screw 6 (head),
Camera adjusting holder 1 adjusts compression spring 5, camera lens fixing bracket 2.
After the completion of assembly, judge whether axle center is located at same axis with imaging center line according to lens imaging situation.
If downward shift, by the lock-screw 6 right over tightening or unclamping, cooperation adjusts compression spring 5 and is adjusted
Section.
If left and right offset, by tightening or unclamping the lock-screw 6 of the left and right sides, cooperation adjusts compression spring 5 and is adjusted
Section.
If up and down, left and right is offset, then up and down adjustment is first carried out, then with left and right adjusting is carried out, until meeting the requirements.
It completes after adjusting, it is locked with supporting screw 7, it prevents from bringing harmful effect to camera lens in vibration processes.
It is last it is to be noted that:Above example is only to illustrate the technical solution of the utility model, rather than limits it
System.It will be understood by those of ordinary skill in the art that:Can with technical scheme described in the above embodiments is modified, or
Person's equivalent replacement of some of the technical features;These modifications or replacements do not make the essence of corresponding technical solution de-
Spirit and scope from various embodiments of the utility model technical solution.