CN204044419U - The camera lens of a kind of adjustable rear Jiao - Google Patents
The camera lens of a kind of adjustable rear Jiao Download PDFInfo
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- CN204044419U CN204044419U CN201420507118.9U CN201420507118U CN204044419U CN 204044419 U CN204044419 U CN 204044419U CN 201420507118 U CN201420507118 U CN 201420507118U CN 204044419 U CN204044419 U CN 204044419U
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- connection block
- pedestal
- lens
- circle
- camera lens
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Abstract
The utility model provides the camera lens of a kind of adjustable rear Jiao, is provided with the rear burnt governor motion of the distance between adjustable lens main body and target surface between lens bodies and target surface; Comprise interface, interface connection socket, guide pin, adjust circle, pedestal; Pedestal is the fixed frame of symmetrical structure centered by optical axis, is rigidly connected with lens bodies; The shoulder of pedestal is fixedly installed guide pin, and guide pin is parallel with optical axis direction, interface connection socket is provided with the through hole of axle sleeve guide pin, and interface connection socket is arranged on pedestal by guide pin; Interface is connection lens and the ladder cover installing this camera lens person video camera; Adjust circle to be connected to outside the large mouth of pedestal by the trapezoidal thread on it, adjust the interface connection socket described in the jacking of side of circle.In the technical solution of the utility model, the distance realized between camera interface and camera lens mirror group is adjustable, burnt adjustment after completing.This programme structure is simple, easy to adjust.
Description
Technical field
The utility model relates to camera lens field, the camera lens that can adjust rear Jiao particularly a kind of video camera used.
Background technology
Actual take pictures (shooting) time, the relative distance of illuminated object and camera (video camera), each portion is vicissitudinous, by Gauss formula:
known, for different (shooting) the distance L that takes pictures, the image distance of optical system that it is taken pictures (shooting)
also along with change.In order to enable the subject of different distance correctly be imaged on to obtain image clearly on focal plane (film plane, CCD plane), must at any time adjustable lens and picture plane between distance
adapt to the change of object distance L.
At present, the structure of camera lens as shown in Figure 1: comprise front arrangement of mirrors group L1, the second arrangement of mirrors group L2, the 3rd arrangement of mirrors group L3, the 4th arrangement of mirrors group L4, CCD or CMOS target surface C, main body E, F focusing ring F, light hurdle ring G, ZOOM zoom ring Z, and rear burnt adjustable mechanism H.
Wherein main body E is made up of some straight trough guide rails and skewed slot guide rail etc., and main body E is the fixed frame of total, for the second arrangement of mirrors group L2 and the 4th arrangement of mirrors group L4 provides motion guide rail.
The optical mirror slip that front arrangement of mirrors group L1, the second arrangement of mirrors group L2, the 3rd arrangement of mirrors group L3 and the 4th arrangement of mirrors group L4 have certain focal power by some respectively and fixed mechanism thereof form.Front arrangement of mirrors group L1, the second arrangement of mirrors group L2, the 3rd arrangement of mirrors group L3 and the 4th arrangement of mirrors group L4 form optical imagery structure, and wherein the second arrangement of mirrors group L2 and the 4th arrangement of mirrors group L4 is exercise group.For fixing group, it is fixed on main body E respectively by being threaded front arrangement of mirrors group L1 and the 3rd arrangement of mirrors group L3.Second arrangement of mirrors group L2 and the 4th arrangement of mirrors group L4 can to move the zoom and focusing that realize camera lens along optical axis direction.
F focusing ring F is used to adjustment second arrangement of mirrors group L2 motion, and its inner peripheral wall is evenly equipped with some straight troughs.In the straight trough of the sleeve axle sleeve on the second arrangement of mirrors group L2 and the skewed slot of main body E and F focusing ring F, when rotating F focusing ring F, the second arrangement of mirrors group is moved in main body E.ZOOM zoom ring Z is used to adjustment the 4th arrangement of mirrors group L4 motion, and its mechanism is identical with adjustment process and the second arrangement of mirrors group L2.Complete optical zoom process by the motion of the second arrangement of mirrors group L2 and the 4th arrangement of mirrors group L4.Light hurdle ring G is the mechanism driving aperture size, the size of adjustable diaphragm when rotating G.
C is CCD or COMS device, is the photo-sensitive cell of video camera inside.Camera lens is finally imaged on CCD or CMOS.
When back focal length refers to and installs camera lens, subject can be made lucky on CMOS/CCD target surface after lens imaging.Camera possesses automatic focus, therefore, can realize subject lucky on CMOS/CCD target surface after lens imaging.When video camera connects zoom lens, often all need to adjust the back focal length of video camera.But existing video camera some do not possess rear burnt adjustment function, part effective focal length can only be lost in order to make the clear focusing of image; Even if some possesses rear burnt adjustment function also there is complex structure, regulate inconvenient, many problems such as the limited extent of adjustment.
Utility model content
The utility model provides the camera lens of a kind of adjustable rear Jiao, and camera lens devises a kind of adjustable rear focusing mechanism, has thoroughly broken away from rear Jiao depending on video camera and has regulated.Camera lens can be mated completely with video camera.Can ensure that effective focal length also can make clear picture focus on.
The technical solution of the utility model is: the camera lens of a kind of adjustable rear Jiao, comprise the lens bodies of the fixed frame as whole camera lens, be sleeved on the adjustable camera lens mirror group realizing lens focusing and zoom of phase mutual edge distance in lens bodies, be provided with the rear burnt governor motion of the distance between adjustable lens main body and target surface at described lens bodies and camera body link;
Described rear burnt governor motion, comprises body adapter sleeve, Connection Block, guide finger, adjustment circle, tune circle Connection Block, interface pressure ring, shell fragment and pedestal;
Described pedestal is fixed frame, described base shape is ladder annular sleeve, and pedestal one end is fixedly connected with described lens bodies, and the other end encloses inner hole thread through external thread with adjustment and is connected, base end face is fixedly installed guide finger, and guide finger is sleeved on Connection Block;
Described adjustment circle is annular sleeve, and adjustment circle is plugged in the endoporus adjusting circle Connection Block, encloses Connection Block fix through lock-screw and fixing tune:
Described tune circle Connection Block is annular, adjusts the other end of circle Connection Block to be sleeved on Connection Block, adjusts on circle Connection Block and is provided with and Connection Block clamping screw;
Described Connection Block is be with boss annular in the middle part of endoporus, Connection Block inner circle one end is set with interface pressure ring, interface pressure ring is connected with body adapter sleeve through screw thread, the Connection Block other end is sleeved on body adapter sleeve through shell fragment, to be formed in the middle part of Connection Block endoporus the Connection Block to body adapter sleeve (H1) axial limiting and the syndeton of body adapter sleeve with boss and interface pressure ring;
Described body adapter sleeve is annular, and one end is connected with Connection Block, other end cylindrical is provided with the interface be connected with camera body.
In the technical solution of the utility model, by revolving tone converting ring, tune circle is moved axially on pedestal, band mobile interface moves in the axial direction, and the distance realized between camera interface and camera lens mirror group is adjustable, burnt adjustment after completing.This programme structure is simple, easy to adjust.
Below in conjunction with specific embodiment, the utility model is described in more detail.
Accompanying drawing explanation
The camera lens one-piece construction schematic diagram of Fig. 1 the utility model is adjustable rear Jiao.
Burnt governor motion structural drawing after Fig. 2 the utility model.
Fig. 3 the utility model interface diagram.
In figure, C, target surface, D1, lock-screw, D2, set bolt, E, main body, F, focusing ring, G, light hurdle ring, Z, ZOOM zoom ring, H, back focusing mechanism, H1, body adapter sleeve, H1-1, limited block, H2, Connection Block, H3, tune circle Connection Block, H4, interface pressure ring, H5, guide finger, H6, adjustment circle, H7, pedestal, H8, shell fragment, L1, arrangement of mirrors group, L2, the second arrangement of mirrors group, L3, the 3rd arrangement of mirrors group, L4, the 4th arrangement of mirrors group.
Embodiment
Embodiment 1, as shown in Figure 1, the present embodiment is a kind of camera lens that can be burnt after adjustable lens, the camera lens of the present embodiment is the same with current camera lens, comprise the lens bodies E of the fixed frame as whole camera lens, be sleeved on the adjustable camera lens mirror group realizing lens focusing and zoom of phase mutual edge distance in lens bodies E, camera lens mirror group comprises front arrangement of mirrors group L1, second arrangement of mirrors group L2,3rd arrangement of mirrors group L3, the four arrangement of mirrors groups such as the 4th arrangement of mirrors group L4, wherein the second arrangement of mirrors group L2 and the 4th arrangement of mirrors group L4 can move to realize focusing and zoom along optical axis direction.
Be with the key distinction of current camera lens, between lens bodies E and target surface C, in the camera lens of the present embodiment, be provided with the rear burnt governor motion H of the distance between adjustable lens main body E and target surface C; Rear burnt governor motion H as shown in Figure 2, comprises body adapter sleeve H1, Connection Block H2, guide finger H5, adjustment circle H6, tune circle Connection Block H3, interface pressure ring H4, shell fragment H8 and pedestal H7;
Here pedestal H7 is that other parts of fixed frame back focusing mechanism H are just mounted on this fixed support, and stretch by rotating on fixed support, realize back focusing, as shown in Figure 2, pedestal H7 shape is ladder annular sleeve, and pedestal H7 one end is fixedly connected with described lens bodies E, and the other end encloses H6 inner hole thread through external thread with adjustment and is connected, pedestal H7 end face is fixedly installed guide finger H5, and guide finger H5 is sleeved on Connection Block H2.
Pedestal H7 is the fixed frame of symmetrical structure centered by optical axis, is rigidly connected with lens bodies E; Pedestal H7 shape is ladder cover shape; Include large end and small end, also have the shoulder connected between large end and small end.The large end of pedestal H7 is sleeved on the outside of lens bodies E, and is rigidly connected with lens bodies E, interfixes between them.In the ladder annular sleeve of pedestal H7, guide finger H5 adopts screw thread to be screwed on pedestal H7 shoulder, and the axial direction of guide finger H5 is consistent with the optical axis direction of camera lens.
The shoulder of pedestal H7 is fixedly installed guide pin H5, and guide pin H5 is parallel with optical axis direction, interface connection socket H2 is provided with the through hole of axle sleeve guide pin H5, and interface connection socket H2 is arranged on pedestal H7 by guide pin H5.Guide pin H5 is threaded with on pedestal H7, and its circumference over glaze cover is with on the through hole of interface connection socket H2, and guide pin H5 provides the guide rail moved along optical axis direction for interface connection socket H2.
Adjustment circle H6 is annular sleeve, and adjustment circle H6 is plugged in the endoporus adjusting circle Connection Block H3, encloses Connection Block H3 fix through lock-screw D1 and fixing tune.Adjust circle Connection Block H3 itself to be also ring-type, H6 is also the same with pedestal for adjustment circle, is a kind of ladder annular sleeve, and wherein one section is plugged in the endoporus adjusting circle Connection Block H3.
Adjust circle Connection Block H3 to be annular, adjust the other end of circle Connection Block H3 to be sleeved on Connection Block H2, adjust on circle Connection Block H3 and be provided with and Connection Block H2 set bolt D2; Circle Connection Block H3 is adjusted also to be annular sleeve, socket adjustment circle H6 in the inner ring of one end, other end cover is sleeved on Connection Block H2, set bolt D2 radial direction is arranged, make Connection Block H2 enclose Connection Block H3 with tune can not relatively rotate, this set bolt D2 can turn on, and like this, Connection Block H2 encloses Connection Block H3 with tune and just can relatively have rotated.
Connection Block H2 is with boss annular in the middle part of endoporus, Connection Block H2 inner circle one end is set with interface pressure ring H4, interface pressure ring H4 is connected with body adapter sleeve H1 through screw thread, the Connection Block H2 other end is sleeved on body adapter sleeve H1 through shell fragment H8, to be formed in the middle part of Connection Block H2 endoporus the Connection Block H2 to body adapter sleeve H1 axial limiting and the syndeton of body adapter sleeve H1 with boss and interface pressure ring H4.
Body adapter sleeve H1 is annular, and one end is connected with Connection Block H2, other end cylindrical is provided with the interface be connected with camera body, and this interface can be bayonet socket, also can be screw thread mouth.
Rear burnt governor motion H is above arranged between camera lens and video camera main frame, can regulate the distance be arranged between CCD or CMOS target surface C in video camera main frame and lens bodies E.
Body adapter sleeve H1 is connection lens and the ladder cover installing this camera, as shown in Figure 3, equally, also small end, large end and the shoulder being connected small end and large end is included, small end and the video camera of body adapter sleeve H1 are fixed, clamping or the mode that is threaded can be adopted at present camera lens and camera body to be fixed, and the large end of body adapter sleeve H1 is assemblied on interface connection socket H2, also with the interface pressure ring H4 that has been threaded outside the large end of body adapter sleeve H1, flexure strip H8 is provided with between body adapter sleeve H1 and interface connection socket H2, here, body adapter sleeve H1 to be assemblied on interface connection socket H2 and elastic steel sheet H8 is housed therebetween, interface pressure ring H4 is threaded connection on body adapter sleeve H1, now body adapter sleeve H1, interface connection socket H2, interface pressure H4 is joined together, body adapter sleeve H1 can be rotated relative to central axis as firmly extrusion body adapter sleeve H1, thus can the posture of adjustable lens camera lens be ajusted be convenient to regulate.Body adapter sleeve H1 is standard flange C or CS interface, is mainly used in connection lens and video camera and its locating surface is X to the distance of CCD or CMOS target surface C, thus ensures coke number thereafter.
Adjustment circle H6 is connected to outside the large end of pedestal H7 by the trapezoidal thread on it, the side jacking interface connection socket H2 of adjustment circle H6.Adjustment circle H6 connects with on pedestal H7 by the trapezoidal thread (its pitch is P) on it, and by rotating adjustment circle H6, adjustment circle H6 can simultaneously relative to the upper and lower rectilinear motion of pedestal H7.Adjustment circle H6 axle sleeve also upwards holds interface connection socket H2 on pedestal H7.Adjusting circle Connection Block H3 enclose on H6 by grub screw clamping screw D1 is locked in adjusting and enclose H6 in being rigidly connected with adjustment, namely adjustment circle H6 can be driven to rotate together by revolving tone converting ring Connection Block H3.Adjust between circle Connection Block H3 and interface connection socket H2 and be provided with the set bolt D2 that can loosen.When set bolt D2 loosens, rear Jiao can be regulated, when set bolt D2 tightens up, rear Jiao cannot be regulated.
Pedestal H7 is provided with stopper slot, the large end end face of interface H1 is provided with limited block H1-1, when the large end of interface H1 is sleeved on outside the small end of pedestal H7, limited block H1-1 as shown in Figure 3, is inserted in stopper slot H7-1, and the radian of stopper slot is 180 degree.
Rear Jiao of the present embodiment regulates implementation procedure:
1, lock-screw D2 is loosened.
2, rotate tune and enclose Connection Block H3, drive adjustment to enclose H6 rotation when H3 rotates, adjustment circle H6 holds interface connection socket H2 makes interface connection socket H2 move up and down along guide pin H5, i.e. interface H1 axially moving linearly, until rear Jiao's adjustment is clear.
3, be locked screw D2.
4, rotate camera lens adjustment camera lens posture, camera lens is ajusted.Here because gib screw D2 is locked, after during rotation camera lens, Jiao no longer changes, just camera lens adjustment direction under the effect of flexure strip H8.
The control of rear burnt range of adjustment: the angle of stopper slot is 180 degree, the upper thread pitch of adjustment circle H6 is P, and after institute, the scope of Jiao's adjustment is P/2.Here, by given suitable P value, scope burnt after required adjustment can be met.
Claims (5)
1. the camera lens of adjustable rear Jiao, comprise the lens bodies of the fixed frame as whole camera lens, be sleeved on the adjustable camera lens mirror group realizing lens focusing and zoom of phase mutual edge distance in lens bodies, it is characterized in that: the rear burnt governor motion (H) being provided with the distance between adjustable lens main body and target surface at described lens bodies (E) and camera body link;
Described rear burnt governor motion (H), comprise body adapter sleeve (H1), Connection Block (H2), guide finger (H5), adjustment circle (H6), tune circle Connection Block (H3), interface pressure ring (H4), shell fragment (H8) and pedestal (H7);
Described pedestal (H7) is fixed frame, described pedestal (H7) shape is ladder annular sleeve, pedestal (H7) one end is fixedly connected with described lens bodies (E), the other end encloses (H6) inner hole thread through external thread with adjustment and is connected, pedestal (H7) end face is fixedly installed guide finger (H5), guide finger (H5) is sleeved on Connection Block (H2);
Described adjustment circle (H6) is annular sleeve, and adjustment circle (H6) is plugged in the endoporus adjusting circle Connection Block (H3), adjusts that to enclose Connection Block (H3) fixing through lock-screw (D1) with fixing:
Described tune circle Connection Block (H3) is annular, adjust the other end of circle Connection Block (H3) to be sleeved on Connection Block (H2), adjust on circle Connection Block (H3) and be provided with and Connection Block (H2) set bolt (D2);
Described Connection Block (H2) is for being with boss annular in the middle part of endoporus, Connection Block (H2) inner circle one end is set with interface pressure ring (H4), interface pressure ring (H4) is connected with body adapter sleeve (H1) through screw thread, Connection Block (H2) other end is sleeved on body adapter sleeve (H1) through shell fragment (H8), to be formed in the middle part of Connection Block (H2) endoporus the Connection Block (H2) to body adapter sleeve (H1) axial limiting and the syndeton of body adapter sleeve (H1) with boss and interface pressure ring (H4);
Described body adapter sleeve (H1) is annular, and one end is connected with Connection Block (H2), other end cylindrical is provided with the interface be connected with camera body.
2. the camera lens of adjustable rear Jiao according to claim 1, it is characterized in that: on described pedestal (H7), be provided with the stopper slot that restriction adjustment circle (H6) moves axially distance, it is protruding corresponding that (H6) endoporus is enclosed in stopper slot and adjustment.
3. the camera lens of adjustable rear Jiao according to claim 1, is characterized in that: described guide finger (H5) adopts and is threaded onto on pedestal (H7).
4. according to the camera lens of described adjustable rear Jiao arbitrary in claims 1 to 3, it is characterized in that: described body adapter sleeve (H1) is connected with camera body and adopts thread connecting mode.
5. according to the camera lens of described adjustable rear Jiao arbitrary in claims 1 to 3, it is characterized in that: described body adapter sleeve (H1) is connected with camera body and adopts bayonet socket connected mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507118.9U CN204044419U (en) | 2014-09-04 | 2014-09-04 | The camera lens of a kind of adjustable rear Jiao |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507118.9U CN204044419U (en) | 2014-09-04 | 2014-09-04 | The camera lens of a kind of adjustable rear Jiao |
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| Publication Number | Publication Date |
|---|---|
| CN204044419U true CN204044419U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420507118.9U Expired - Fee Related CN204044419U (en) | 2014-09-04 | 2014-09-04 | The camera lens of a kind of adjustable rear Jiao |
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| CN (1) | CN204044419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI813199B (en) * | 2021-07-30 | 2023-08-21 | 大陸商蘇州康代智能科技股份有限公司 | Precision adjusting device for angle and distance in three-dimensional space and optical detection equipment |
-
2014
- 2014-09-04 CN CN201420507118.9U patent/CN204044419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI813199B (en) * | 2021-07-30 | 2023-08-21 | 大陸商蘇州康代智能科技股份有限公司 | Precision adjusting device for angle and distance in three-dimensional space and optical detection equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141224 Termination date: 20160904 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |