CN206819031U - A kind of rear-mounted filtering lens unit - Google Patents
A kind of rear-mounted filtering lens unit Download PDFInfo
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- CN206819031U CN206819031U CN201720804835.1U CN201720804835U CN206819031U CN 206819031 U CN206819031 U CN 206819031U CN 201720804835 U CN201720804835 U CN 201720804835U CN 206819031 U CN206819031 U CN 206819031U
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- support
- filter
- slot
- lens unit
- mounted filtering
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Abstract
The utility model provides a kind of rear-mounted filtering lens unit, including support and the filter that is adapted with support, wherein, support is provided with the slot for being used for fastening filter；Loophole is opened up on support, the filter fits with shading hole；In use, support is removably to be fixedly connected with the camera lens rear end of camera.Wherein, support can use cirque structure, and slot is located on the ring surface of support, and the inside of slot can be single layer structure or sandwich construction；Filter can be the rectangular configuration that a line is circular arc, and the arc end of filter mutually agrees with slot.Rear-mounted filtering lens unit of the present utility model have versatility it is wide, it is simple in construction, installation convenient disassembly the advantages of.
Description
Technical field
It the utility model is related to photographic goods field, more particularly to a kind of rear-mounted filtering lens unit.
Background technology
With the fast development of camera work, requirement of the people to photographic work image effect increasingly improves.In order to reach
Optimal shooting effect, it will usually filter is set in the camera lens front end of filming apparatus, can be changed by actual demand different types of
Filter obtains optimal filter effect.
The installation method of forward type filter has a limitation, such as wide-angle lens in some camera lenses, preposition in wide-angle lens
The mounting means of filter is usually two kinds, and one is spring clamping structure, and two be filter support attachment structure；Spring clamping structure is pressed from both sides
Clamp force is big, fragile mirror head outer shell, and can only realize single filtering functions；Filter support attachment structure is including blanking disc and tightly
Gu ring, there is installation dismounting intricate operation, poor universality, the caducous shortcoming of blanking disc.In addition, the diameter of wide-angle lens is reachable
150mm, Gu the filter diameter being adapted to therewith is generally more than 150mm, it is in so larger-size camera lens front end installation filter
The work that part is wasted time and energy very much.
The content of the invention
The utility model is in view of the deficiencies of the prior art, there is provided a kind of rear-mounted filtering lens unit, has versatility
Extensively, the advantages of simple in construction, convenient disassembly.
The utility model adopts the following technical scheme that：A kind of rear-mounted filtering lens unit, including support and mutually fitted with support
The filter matched somebody with somebody, wherein, support is provided with the slot for being used for fastening filter；Loophole, the filter and shading hole are opened up on support
Fit；Support is removably to be fixedly connected with the camera lens rear end of camera.
Further, support is cirque structure, and the slot is arranged on the ring surface of support.
Further, the bottom of slot is designed arc-shaped appearance.
Further, the inside of slot is single layer structure, or is separated into sandwich construction.The slot of single layer structure is once
It is only capable of placing a kind of filter, there is single filter effect；The slot of sandwich construction is can once to place a variety of filters, is had
Multi-filtering effect, more satisfactory shooting effect can be obtained.
Further, filter is the rectangular configuration that a line is circular arc, or the square structure for being circular arc for a line, or one
Bar side is the isosceles trapezoidal structure of circular arc；Also, the arc end of filter mutually agrees with slot.During installation, the arc-shaped edges court of filter
In lower slider insertion slot, realization connects and fixes with support；In addition, filter uses fillet design, sharp rib can be prevented
Hurt hand or damage camera lens in angle.
Further, the thickness of filter is 0.5-1.5mm；The thickness that support is provided with slot is 0.5-10.0mm,
It is 0.1-0.5mm that the thickness at slot is not provided with the support.
Further, support is provided with the pad of lifting fastening filter effect.Pad can be cotton, can strengthen friction
Power, prevent filter from being come off from support.
Further, the support be spirally connected or clamping or bonding by way of realize it is detachable solid with camera lens rear end
Fixed connection.
Further, the slot and support are formed in one structure.Also can be by being spirally connected or blocking between slot and support
The removably fixed form such as connect or be bonded and realize connection.
Further, the material of support is aluminium or copper material or titanium；The material of filter be B270 or corning glass or
Xiao Te glass or blue or green glass sheet.
The beneficial effects of the utility model：The utility model devises the filter being mutually adapted and support knot original and differently
Structure, filter can be installed on to the camera lens tail end of filming apparatus, not need the change according to different camera lens size dimensions to filter
Size, which is made, adaptively to be adjusted, and versatility is high；Filter uses fillet structure and a line is designed arc-shaped appearance, in addition, branch
Frame is cirque structure, therefore, it is possible to be effectively prevented from sharp corners injury human body or damage camera lens；Entirely install and dismounted
Journey is simple and convenient, time saving and energy saving.By rearmounted filter, the influence of camera lens extraneous light is prevented so that the image effect of shooting
It is more true perfect.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of slr camera in embodiment 1.
Fig. 2 is the structural blast schematic diagram of slr camera in embodiment 1.
Fig. 3 is the supporting structure schematic diagram of rear-mounted filtering lens unit in embodiment 1.
Fig. 4 is the structural representation of filter in embodiment 1.
Fig. 5 is the supporting structure schematic diagram of rear-mounted filtering lens unit in embodiment 2.
Fig. 6 is the supporting structure schematic diagram of rear-mounted filtering lens unit in embodiment 3.
Embodiment
The purpose of this utility model is realized with specific embodiment below in conjunction with the accompanying drawings, functional characteristics and advantage are done into one
Step explanation, but it is not used in restriction the utility model.
Embodiment 1
Referring to Figures 1 and 2, a kind of slr camera using rear-mounted filtering lens unit is present embodiments provided, filter 1 passes through
Support 2 is installed on the tail end of camera lens 3 of slr camera, the interference of extraneous light is efficiently avoid when taking pictures so that shooting effect
More preferably.In addition, rear-mounted filter 1 has the function that to protect camera lens 3, external dust can be effectively prevented to be deposited on camera lens 3
Surface, sharp corners can also be avoided to scratch the accident of camera lens 3.
Reference picture 3 is described further to the rear-mounted filtering lens unit on slr camera, the rear-mounted filtering lens unit bag
The filter 1 and support 2 being adapted are included, support 2 is provided with the slot 21 of fastening filter, and slot 21 and support 2 are integrated
Molding structure.Wherein, support 2 is cirque structure, using aluminium.Slot 21 is one, positioned at the semi-ring surface of ring support 2
On；The inside of slot 21 is single layer structure, is only used for single filter 1；The both ends of slot 21 use fillet design, slot 21
Designed for semicircular arc bottom.A screw 211 is respectively provided with the both ends of slot 21 and the bottom of slot 21, with slot spiral shell
Screw 211 is again provided with the one-to-one support in hole site so that screw can wear slot 21 and support 2, and realization carries
Being spirally connected between the support 2 and the tail end of camera lens 3 of filter 1；, it is necessary to which the thickness according to eyeglass is elastic to what is be spirally connected when changing filter 1
Degree makes the adjustment of adaptability.In addition, another semi-ring surface of support 2 is provided with the cotton pad 22 of increase frictional force, can be by filter 1
It is rigidly secured on support 2, efficiently avoid filter 1 and come off the generation of situation；The cotton pad 22 of the present embodiment equally uses
Designed arc-shaped appearance, radian are 80 degree.The thickness of support 2 of the present embodiment（Not comprising slot 21 and the thickness of cotton pad 22）For 0.15mm,
The thickness of slot 21 is 1.3mm.
Reference picture 4, the filter 1 of the present embodiment are the rectangular configuration that a line is semicircular arc, and arc radius R is 16mm,
The thickness of filter 1 is 0.5mm；The arc end of filter mutually agrees with slot.The material of filter 1 can be B270, corning glass, Xiao Tebo
Any one among glass, blue or green glass sheet, can be selected according to the actual requirements.
When filter is installed, camera lens 3 is disassembled from slr camera first, is then fixed on support 2 by screw
The tail end of camera lens 3, then by the slot 21 in the arc end alignment bracket 2 of filter 1, filter 1 is slowly pushed into slot, finally will
The lens group for being provided with rear-mounted filter is fitted into slr camera.
Embodiment 2
As shown in figure 5, a kind of rear-mounted filtering lens unit is present embodiments provided, the filter shape and embodiment of the present embodiment
1 filter is identical.The rear-mounted filtering lens unit of the present embodiment in place of the difference of embodiment 1 with being only that：1st, the present embodiment is slotting
Groove 21 is two, and two slots 21 are respectively positioned on the same semi-ring surface of annular stent 2, and relative to central axis in symmetrical
Distribution.2nd, the both ends of each slot 21 are equipped with a screw 211, and similarly, the one-to-one corresponding opening position on support 2 respectively sets spiral shell
Hole 211 so that screw can wear slot 21 and support 2, and realization carries the support 2 of filter and being spirally connected for camera lens tail end.
Implement 3
As shown in fig. 6, a kind of rear-mounted filtering lens unit is present embodiments provided, including support 2, slot 21 and filter,
Wherein, support 2 is cirque structure；Filter shape is identical with the filter in embodiment 1, arc end and the slot phase contract of filter
Close.Slot 21 is one, and the bottom of slot 21 is designed for semicircular arc, and the thickness of slot 21 is 5.0mm；Divided inside slot 21
Three-decker is divided into, three kinds of filters therefore, during shooting can be used simultaneously, comprehensive three kinds of filter effects, reach optimal shooting
Effect；The both ends of slot 21 and the bottom of slot 21 respectively set an inserting column 212, and the one-to-one corresponding opening position on support 2 is provided with jack,
And the one-to-one corresponding opening position of camera lens tail end is provided with the slot being adapted with inserting column 212, slot, support and camera lens tail end pass through
The mode of clamping achieves a fixed connection.
When filter is installed, camera lens is disassembled from camera first；Then by the bottom of slot 21 and cirque structure
Support 2 edge alignment it is real so that the inserting column 212 of the both ends of slot 21 and bottom is smoothly worn by jack on support 2
Existing slot 21 is fixedly connected with support 2；Inserting column 212 is inserted in the slot of camera lens rear end again, realize slot 21, support 2 with
And being fixedly connected between camera lens three；Three kinds of filters are pushed into slot 21 successively according to sequencing, after finally carrying
The lens group for putting formula filtering lens unit is fitted into camera.
Filter species of the present utility model is neutral-density filter, linear variable filter, colour temperature adjust eyeglass etc., can
Select, be not particularly limited according to the actual requirements.Preferred embodiment of the present utility model is these are only, not thereby limits this
The scope of the claims of utility model, every equivalent structure transformation done using the utility model specification and accompanying drawing content, or directly
Connect or be used in other related technical areas indirectly, be similarly included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of rear-mounted filtering lens unit, it is characterised in that including support（2）And and support（2）The filter being adapted（1）,
The support（2）It is provided with and is used to fasten filter（1）Slot（21）；The support（2）On open up loophole, the filter
（1）Fitted with shading hole；In use, the support（2）With the camera lens of camera（3）Rear end is removably to be fixedly connected.
A kind of 2. rear-mounted filtering lens unit according to claim 1, it is characterised in that the support（2）For annular knot
Structure, the slot（21）It is arranged at support（2）Ring surface on.
A kind of 3. rear-mounted filtering lens unit according to claim 2, it is characterised in that the slot（21）Bottom for circle
Arc designs.
A kind of 4. rear-mounted filtering lens unit according to claim 3, it is characterised in that the slot（21）Inside be single
Rotating fields, or it is separated into sandwich construction.
A kind of 5. rear-mounted filtering lens unit according to claim any one of 2-4, it is characterised in that the filter（1）For
A line is the rectangular configuration of circular arc, or the square structure for being circular arc for a line, or a line is the isosceles trapezoid knot of circular arc
Structure, and filter uses fillet design；Filter（1）Arc end and slot（21）Mutually agree with.
A kind of 6. rear-mounted filtering lens unit according to claim 5, it is characterised in that the filter（1）Thickness be
0.5-1.5mm；The support（2）It is provided with slot（21）The thickness at place is 0.5-10.0mm, the support（2）On be not provided with
Slot（21）The thickness at place is 0.1-0.5mm.
A kind of 7. rear-mounted filtering lens unit according to claim 6, it is characterised in that the support（2）It is provided with lifting
Fasten filter（1）The pad of effect（22）.
A kind of 8. rear-mounted filtering lens unit according to claim 6 or 7, it is characterised in that the support（2）By being spirally connected
Or the mode of clamping or bonding is realized and camera lens（3）The detachable of rear end is fixedly connected.
A kind of 9. rear-mounted filtering lens unit according to claim 8, it is characterised in that the slot（21）With support（2）
Be formed in one structure.
A kind of 10. rear-mounted filtering lens unit according to claim 9, it is characterised in that the support（2）Material be aluminium
Material or copper material or titanium；The filter（1）Material be B270 or corning glass or Xiao Te glass or blue or green glass sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720804835.1U CN206819031U (en) | 2017-07-05 | 2017-07-05 | A kind of rear-mounted filtering lens unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720804835.1U CN206819031U (en) | 2017-07-05 | 2017-07-05 | A kind of rear-mounted filtering lens unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206819031U true CN206819031U (en) | 2017-12-29 |
Family
ID=60761973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720804835.1U Active CN206819031U (en) | 2017-07-05 | 2017-07-05 | A kind of rear-mounted filtering lens unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206819031U (en) |
-
2017
- 2017-07-05 CN CN201720804835.1U patent/CN206819031U/en active Active
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