CN203178545U - Zoom lens and zoom camera - Google Patents
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- CN203178545U CN203178545U CN201320151041.1U CN201320151041U CN203178545U CN 203178545 U CN203178545 U CN 203178545U CN 201320151041 U CN201320151041 U CN 201320151041U CN 203178545 U CN203178545 U CN 203178545U
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Abstract
The utility model discloses a zoom lens and a zoom camera so as to solve the problem existing in the prior art that a zoom lens and a focus lens can not move simultaneously, thereby being asynchronous in focusing and zooming. The zoom lens provided by the utility model comprises a driving mechanism, a linkage mechanism, a zoom lens and a focus lens, wherein a cylindrical inner wall of the linkage mechanism is provided with two reverse arc-shaped sliding slots, the driving mechanism drives the linkage mechanism to rotate, the two reverse sliding slots extrude the zoom lens and the focus lens to slide along the sliding slots respectively in the length direction of the linkage mechanism, and the curvature of the first sliding slot and the second sliding slot meets the condition that a first position after the zoom lens stops sliding and a second position after the focus lens stops sliding conform to preset position correspondence, thereby being capable of enabling the zoom lens and the focus lens to move simultaneously and have relevance, and enabling the zooming and the focusing to be synchronous.
Description
Technical field
The utility model relates to technical field of video monitoring, relates in particular to a kind of zoom lens and Zoom camera.
Background technology
Variable-focus video camera more and more is applied in field of video monitoring, for realizing varifocal demand under the monitoring scene, existing variable-focus video camera generally passes through integrated camera lens is installed, and controls the position that motor moves zoom eyeglass and focusing lens respectively by circuit, reaches the purpose of zoom.
Comprise the zoom motor in the integrated camera lens and focus on motor, the zoom motor is used for driving the zoom eyeglass, focus on motor and be used for driving focusing lens, when adopting integrated camera lens to carry out zoom, often need be after collecting image, calculate the operator of the image that collects according to the focusing operator algorithm, controller at first drives the zoom motor according to the climbing algorithm and moves the zoom eyeglass to corresponding position, drive the focusing motor then and move focusing lens, in moving process, calculate the operator of the current image that collects in real time according to focusing algorithm, according to the operator value of feedback that calculates, progressively drive focusing on motor moves focusing lens and advances, after the image that collects satisfies the focusing requirement, stop to drive the focusing motor.
Therefore, adopt integrated camera lens to carry out in the zoom process, zoom eyeglass and focusing lens are by different motor-driven, not only make zoom eyeglass and focusing lens not to move simultaneously, cause the focusing zoom asynchronous, and need the many groups of control motors, the driver cost is higher, and power consumption is bigger.
The utility model content
The purpose of this utility model provides a kind of zoom lens and Zoom camera, can not move simultaneously with zoom eyeglass and focusing lens in the solution prior art, focuses on and the nonsynchronous problem of zoom.
The purpose of this utility model is achieved through the following technical solutions:
The utility model provides a kind of zoom lens on the one hand, and this zoom lens comprises driving mechanism, link gear, zoom eyeglass and focusing lens, wherein,
Described link gear is a cylindrical shell, and has two reverse arc chutes on the tubular inwall, is respectively first chute and second chute;
Described zoom eyeglass is positioned at described first chute, and described focusing lens is positioned at described second chute;
Described driving mechanism drives described link gear and rotates, described zoom eyeglass in described first chute slides in described link gear tube length direction along described first chute, described focusing lens in described second chute slides in described link gear tube length direction along described second chute, and the curvature of first chute and second chute satisfies: the second place after the primary importance after described zoom eyeglass stops to slide and described focusing lens stop to slide meets the predeterminated position corresponding relation.
Preferably, described driving mechanism comprises motor-driven mechanism and speed gear group, wherein:
Described speed gear group comprises at least two gears, wherein,
First gear is circular, with cylindrical shape link gear concentric, on the fastening outer wall that is assemblied in described link gear;
Second gear and the engagement of described first gear, and by described motor-driven mechanism driving rotation;
Described first gear of described second gear driven rotates, and described first gear drags described link gear and rotates.
Further preferred, described zoom lens also comprises:
Be sheathed on the mirror head outer shell of described link gear cylindrical shell periphery, described mirror head outer shell is fixedly mounted on described link gear and is on the movable circle frame that cooperates, offering the assembling window with the described first gear corresponding position on the described mirror head outer shell, described second gear is positioned at outside the described mirror head outer shell and with described assembling window and is oppositely arranged, by described assembling window and the engagement of described first gear.
Preferably, described motor-driven mechanism comprises a motor, and described motor is direct current generator or stepper motor.
The utility model also provides a kind of Zoom camera on the other hand, and this Zoom camera comprises the above-mentioned zoom lens that relates to, and also comprises the video processor that is electrically connected with it, wherein,
Described video processor is resolved the zoom solicited message of user's input, and generates according to described zoom solicited message and to drive signal, controls the speed gear group that the motor-driven mechanism in the described zoom lens drives in the described zoom lens and rotates.
Preferably, described Zoom camera also comprises the image capture module that is connected with described zoom lens, and the image processing module that is connected respectively with described video processor and described image capture module, wherein,
Described image capture module is gathered the image information that described zoom lens obtains, and sends to described image processing module;
Described image processing module receives the image information that described image capture module sends, and described image information is carried out pre-service, and the image that pre-service is obtained inputs to connected described video processor;
Described video processor receives the pretreated image of described image processing module, also receives the control signal that includes the zoom solicited message according to the user's request outputting video signal.
Preferably, described image capture module, described image processing module and described video processor are integrated in the same chip.
The zoom lens that the utility model provides and Zoom camera, be provided with driving mechanism in the zoom lens, link gear, zoom eyeglass and focusing lens, link gear is a cylindrical shell, and have two reverse arc chutes on the tubular inwall, driving mechanism drives link gear and rotates, and make the zoom eyeglass that is positioned at chute and focusing lens respectively along sliding on each comfortable link gear tube length direction of chute at its place, and the second place after the curvature of first chute and second chute satisfies the primary importance make after the zoom eyeglass stops to slide and focusing lens and stops to slide meets the predeterminated position corresponding relation, therefore zoom eyeglass and focusing lens can move simultaneously, and have relevance, and then make zoom and focus on synchronous.
Description of drawings
The zoom lens cross-sectional view that Fig. 1 provides for the utility model embodiment one;
Fig. 2 moves synoptic diagram for zoom eyeglass and the focusing lens that the utility model embodiment one provides;
The zoom lens cross-sectional view that Fig. 3 provides for the utility model embodiment two;
Fig. 4 moves synoptic diagram for zoom eyeglass and the focusing lens that the utility model provides;
The Zoom camera structural representation that Fig. 5 provides for the utility model embodiment three.
Embodiment
Be provided with the cylindrical shell link gear in the utility model zoom lens, and have two reverse arc chutes on the tubular inwall of link gear, and make the zoom eyeglass that is positioned at chute and focusing lens can be along with the rotation of link gear cylindrical shell along place chute separately in the enterprising line slip of link gear tube length direction, and the second place after the curvature of arc chute satisfies the primary importance make after the zoom eyeglass stops to slide and focusing lens and stops to slide meets the predeterminated position corresponding relation, make zoom eyeglass and focusing lens mobile simultaneously, and have relevance, and then realize the synchronous of zoom and focusing.
Below with reference to specific embodiment and accompanying drawing zoom lens and the Zoom camera that the utility model relates to is elaborated.
Embodiment one
The utility model embodiment one provides a kind of zoom lens, as shown in Figure 1, comprise driving mechanism 1, link gear 2, zoom eyeglass 3 and focusing lens 4, link gear 2 is a cylindrical shell, have two reverse arc chutes at the tubular inwall, be respectively first chute 201 and second chute 202, zoom eyeglass 3 is positioned at first chute 201, and focusing lens is positioned at second chute 202.
Concrete, driving mechanism 1 is connected with link gear 2 in the utility model, when asking the driving signal of zoom, driving mechanism 1 receives and drives signal, and driving link gear 2 rotates, link gear 2 tubular inwalls are provided with first chute 201 and second chute 202 in the utility model, when driving mechanism 1 drives in link gear 2 rotating process, first chute 201 and second chute 202 also rotate with link gear 2, and then 201 meetings of first chute produce expulsive forces to the zoom eyeglasses 3 that are arranged in first chute 201, and zoom eyeglass 3 is slided along first chute 201, second chute 202 can produce expulsive force to the focusing lens 4 that is arranged in second chute 202, and focusing lens 4 is slided along second chute 202.
Further, first chute 201 and second chute 202 are two reverse arc chutes in the utility model, make when zoom eyeglass 3 slides along first chute 201, along also having displacement on the link gear 2 tube length directions, therefore the final effect that realizes be zoom eyeglass 3 along first chute 201 in the enterprising line slip of link gear 2 tube length directions, when same focusing lens 4 slides along second chute 202, also can displacement be arranged in link gear 2 tube length directions, be focusing lens 4 along second chute 202 in the enterprising line slip of link gear 2 tube length directions, as shown in Figure 2.
Further, in the zoom focus adjustment process of reality, zoom eyeglass 3 generally is heterodromous with focusing lens 4, and focus on the two needs of sharpness according to difference and satisfy different position corresponding relations, therefore in the utility model for making first chute 201 and 202 counter motions of second chute, first chute 201 and second chute 202 are designed to reverse arcuate shape, and satisfy corresponding position corresponding relation for making in zoom eyeglass 3 and focusing lens 4 moving process, the zoom eyeglass that the arcuate shape of first chute 201 and second chute 202 can be according to the actual requirements in the utility model and the position of focusing lens relation design, and the curvature of first chute 201 and second chute 202 is satisfied: the second place after the primary importance after zoom eyeglass 3 stops to slide and focusing lens 4 stop to slide meets the predeterminated position corresponding relation.For example the movement locus of zoom eyeglass 3 can be designed to the arcuate shape of first chute 201 in the utility model, then according to the satisfied position corresponding relation of needs between zoom eyeglass 3 and the focusing lens 4, obtain the movement locus of focusing lens, thereby obtain the arcuate shape of second chute 202.
Driving mechanism drives the link gear rotation in the utility model, the tubular inwall of link gear is provided with two reverse arc chutes, zoom eyeglass 3 and focusing lens 4 are arranged in two reverse arc chutes of link gear, when link gear 2 rotates, zoom eyeglass 3 and focusing lens 4 can be done the relevance motion thereupon, move when realizing zoom eyeglass and focusing lens, and then make zoom and focus on realization synchronously.
Embodiment two
The utility model embodiment two will be described in more detail the zoom lens among the embodiment one in conjunction with practical application, and present embodiment two is the preferred embodiment of embodiment one certainly, not regard it as to be limited.
In the present embodiment, driving mechanism 1 comprises motor-driven mechanism 101 and speed gear group 102.
Concrete, when the needs zoom, motor-driven mechanism 101 is rotated forward or backwards according to the driving signal that receives, and driving speed gear group 102 is rotated, speed gear group 102 drags link gear 2 motions, first chute, 201 extruding zoom eyeglasses 3 slide in link gear 2 tube length directions along first chute 201, second chute 202 extruding focusing lens 4 are along sliding on second chute, 202 link gears, the 2 tube length directions, and make the second place after primary importance after zoom eyeglass 3 stops to slide and focusing lens 4 stop to slide meet the predeterminated position corresponding relation.
Concrete, speed gear group 102 comprises at least two gears in the utility model, wherein,
First gear is circular, with cylindrical shape link gear 2 concentrics, on the fastening outer wall that is assemblied in link gear 2;
Second gear and the engagement of first gear, and by motor-driven mechanism 101 driving rotations;
Second gear driven, first gear rotates, and first gear drags link gear 2 and rotates.
Preferably, the zoom lens that the utility model provides also comprises mirror head outer shell 5, and mirror head outer shell 5 is sheathed on link gear 2 cylindrical shell peripheries, and is fixedly mounted on link gear 2 and is on the movable circle frame that cooperates.
Further, also offering assembling window 501 with the first gear corresponding position on the mirror head outer shell 5, motor-driven mechanism 101 and second gear are positioned at outside the mirror head outer shell 5, and be oppositely arranged with assembling window 501 that the first gear corresponding position is offered, assembling window 501 and the first gear engagement of second gear by arranging, and then drive second gear by motor-driven mechanism and rotate to drive first gear that is fastened on link gear cylindrical shell periphery and rotate, the first gear rotation kinetic energy enough drags link gear 2 and rotates, and then make that the zoom eyeglass 3 and the focusing lens 4 that are positioned at arc groove on the link gear inwall are mobile in the tube length direction of link gear 2, as shown in Figure 3.
Concrete, zoom lens has a reference surface in the one side near imageing sensor, in zoom focusing process, zoom eyeglass 3 moves with focusing lens 4 relative reference faces, as shown in Figure 4, when the needs focal length amplified, motor-driven mechanism 101 drove speed gear group 102 and rotates, and drag link gear 2 rotations, focusing lens 4 is moved to the direction away from reference surface on the tube length direction of link gear 2 along second chute 202; When the needs focal length dwindled, motor-driven mechanism 101 drove speed gear group 102 and rotates, and dragged link gear 2 rotations, and focusing lens 4 is moved to the direction near reference surface on the tube length direction of link gear 2 along second chute 202; Second chute 202 and first chute 201 make focusing lens 4 and zoom eyeglass 3 in chute sliding process separately, the second place after primary importance after zoom eyeglass 3 stops to slide and focusing lens 4 stop to slide meets the predeterminated position corresponding relation, therefore, when focusing lens 4 along second chute 202 when the tube length direction of link gear 2 moves, zoom eyeglass 3 also can move to corresponding position along first chute 201 in the tube length direction of link gear 2 accordingly, therefore realize that focusing lens 4 and zoom eyeglass 3 can relevance move, reach to become the synchronous purpose of zoom and focus.
Preferably, zoom eyeglass 3 and focusing lens 4 are arranged in two reverse arc chutes in the link gear 2 in the utility model, can be along with the relevance motion is carried out in the rotation of link gear 2, need not independent motor-driven mechanism drives respectively, therefore, motor-driven mechanism 101 can be set to a motor in the utility model, be used for driving speed gear group 102 and rotate, can make zoom eyeglass 3 and focusing lens 4 carry out relevance and move.
Further preferred, motor can be direct current generator or stepper motor in the utility model, drives the speed gear group and rotates.
Be provided with motor-driven mechanism in the utility model in the zoom lens, the speed gear group, mirror head outer shell and link gear, have two reverse arc chutes (first chute and second chute) on the link gear tubular inwall, and the zoom eyeglass and the focusing lens that are arranged in the arc chute can carry out coupled movements in the tube length direction of link gear along first chute and second chute, thereby move when realizing zoom eyeglass and focusing lens, and the second place after the primary importance after the zoom eyeglass stops to slide in moving process and focusing lens stop to slide meets the predeterminated position corresponding relation, makes zoom and focus on to realize synchronously.
Further, need not in the utility model the motor that drives zoom eyeglass and focusing lens is set separately, can carry out the driving of speed gear group by a motor is set, existing relatively integrated camera lens need be controlled many group motors, it is low to have cost, advantage low in energy consumption.
Further, first chute and second chute on the link gear tubular inwall of the zoom lens that the utility model provides make zoom eyeglass and focusing lens in moving process, the second place after primary importance after the zoom eyeglass stops to slide and focusing lens stop to slide meets the predeterminated position corresponding relation, make that zoom eyeglass and focusing lens can be along with the rotations of link gear, the edge chute at place separately slides into zoom and focuses on the desired position, reach the monitor video zoom and focus on requirement clearly, need not to use in real time focusing algorithm control focusing lens to carry out complicated operator calculates, therefore need not to arrange high performance processor, reduce cost of manufacture.
Further, the zoom lens that the utility model provides moves for driving link gear by motor-driven mechanism and speed gear group, and the relevance that realizes zoom eyeglass and focusing lens moves, it is a kind of motor machine zoom lens, integrated relatively camera lens, it is little to have size, the advantage of flexible operation, can satisfy the designing requirement of video camera and the various form cameras of miniaturization, such as being applied to analog video camera, digital camera, web camera and ball-shaped camera etc.
Embodiment three
The utility model embodiment three provides a kind of Zoom camera, and this Zoom camera comprises the zoom lens 10 that enforcement one and embodiment two relate to, and also comprises the video processor 20 that is electrically connected with zoom lens 10.
Concrete, video processor 20 is resolved the zoom solicited message of user's input, and according to zoom solicited message generation driving signal, rotate according to the speed gear group 102 that the motor-driven mechanism 101 in the driving signal controlling zoom lens 10 that generates drives in the zoom lens 10, and then make zoom eyeglass 3 and the focusing lens 4 that can carry out coupled movements in the link gear 2 carry out coupled movements, thereby move when realizing zoom eyeglass and focusing lens, and make zoom and focus on realization synchronously.
Preferably, the Zoom camera that the utility model provides also comprises the image capture module 30 that is connected with zoom lens 10, and the image processing module 40 that is connected respectively with video processor 20 and image capture module 30, wherein,
Further, video processor 20 in the Zoom camera that the utility model provides can compress or non-compression processing video image, the video kind of output can comprise analog video and digital video, and video interface comprises CVBS, optical fiber interface, SDI interface or Ethernet interface etc.
Comprise the zoom solicited message in the control signal of user's input, video processor 20 is resolved the zoom solicited message of user's input, and according to zoom solicited message generation driving signal, rotate according to the speed gear group 102 that the motor-driven mechanism 101 in the driving signal controlling zoom lens 10 that generates drives in the zoom lens 10, and then make zoom eyeglass 3 and the focusing lens 4 that can carry out coupled movements in the link gear 2 carry out coupled movements, thereby move when realizing zoom eyeglass and focusing lens, make zoom and focus on and realize synchronously.
The structure of the Zoom camera that includes zoom lens 10, video processor 20, image capture module 30 and image processing module 40 that the utility model provides constitutes, and can consult Fig. 5.
Concrete, image capture module 30, image processing module 40 and video processor 20 can be arranged in the same chip in the utility model, also can be arranged in the different chips, preferably image capture module 30, image processing module 40 and video processor 20 are integrated in the same chip in the utility model, further to reduce the volume of Zoom camera, make it be applied to the designing requirement of various form video cameras more flexibly.
Be provided with motor-driven mechanism in the zoom lens of the Zoom camera that the utility model provides, the speed gear group, mirror head outer shell and link gear, link gear tubular inwall is provided with reverse arc chute, be first chute and second chute in the utility model, and the zoom eyeglass and the focusing lens that are arranged in first chute and second chute can carry out coupled movements along first chute and second chute, thereby move when realizing zoom eyeglass and focusing lens, and the primary importance after the zoom eyeglass stops to slide in moving process and the focusing lens second place after stopping to slide meets the predeterminated position corresponding relation, makes zoom and focuses on and realize synchronously.
Further, the Zoom camera that the utility model provides need not to arrange separately the motor that drives zoom eyeglass and focusing lens, can carry out the driving of speed gear group by a motor is set, existing relatively integrated camera lens need be controlled many group motors, has low, the low in energy consumption advantage of cost.
Further, first chute and second chute on the link gear tubular inwall of the zoom lens that the utility model provides make zoom eyeglass and focusing lens in moving process, the second place after primary importance after the zoom eyeglass stops to slide and focusing lens stop to slide meets the predeterminated position corresponding relation, make that zoom eyeglass and focusing lens can be along with the rotations of link gear, the edge chute at place separately slides into zoom and focuses on the desired position, reach the monitor video zoom and focus on requirement clearly, need not to use in real time focusing algorithm control focusing lens to carry out complicated operator calculates, therefore need not to arrange high performance processor, reduce cost of manufacture.
Further, the zoom lens that the utility model provides moves for driving link gear by motor-driven mechanism and speed gear group, and the movement of realization zoom eyeglass and focusing lens, it is a kind of motor machine zoom lens, integrated relatively camera lens, it is little to have size, the advantage of flexible operation, the designing requirement of video camera and the various form cameras of miniaturization can be satisfied, analog video camera, digital camera, web camera and ball-shaped camera etc. can be applied to.
Obviously, those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (7)
1. a zoom lens is characterized in that, comprising: driving mechanism, link gear, zoom eyeglass and focusing lens, wherein,
Described link gear is a cylindrical shell, and has two reverse arc chutes on the tubular inwall, is respectively first chute and second chute;
Described zoom eyeglass is positioned at described first chute, and described focusing lens is positioned at described second chute;
Described driving mechanism drives described link gear and rotates, described zoom eyeglass in described first chute slides in described link gear tube length direction along described first chute, described focusing lens in described second chute slides in described link gear tube length direction along described second chute, and the curvature of first chute and second chute satisfies: the second place after the primary importance after described zoom eyeglass stops to slide and described focusing lens stop to slide meets the predeterminated position corresponding relation.
2. zoom lens as claimed in claim 1 is characterized in that, described driving mechanism comprises motor-driven mechanism and speed gear group, wherein:
Described speed gear group comprises at least two gears, wherein,
First gear is circular, with cylindrical shape link gear concentric, on the fastening outer wall that is assemblied in described link gear;
Second gear and the engagement of described first gear, and by described motor-driven mechanism driving rotation;
Described first gear of described second gear driven rotates, and described first gear drags described link gear and rotates.
3. zoom lens as claimed in claim 2 is characterized in that, described zoom lens also comprises:
Be sheathed on the mirror head outer shell of described link gear cylindrical shell periphery, described mirror head outer shell is fixedly mounted on described link gear and is on the movable circle frame that cooperates, offering the assembling window with the described first gear corresponding position on the described mirror head outer shell, described second gear is positioned at outside the described mirror head outer shell and with described assembling window and is oppositely arranged, by described assembling window and the engagement of described first gear.
4. as claim 2 or 3 described zoom lens, it is characterized in that described motor-driven mechanism comprises a motor, described motor is direct current generator or stepper motor.
5. a Zoom camera is characterized in that, comprises each described zoom lens of claim 1-4, also comprises the video processor that is electrically connected with described zoom lens, wherein,
Described video processor is resolved the zoom solicited message of user's input, and generates according to described zoom solicited message and to drive signal, controls the speed gear group that the motor-driven mechanism in the described zoom lens drives in the described zoom lens and rotates.
6. Zoom camera as claimed in claim 5 is characterized in that, also comprises the image capture module that is connected with described zoom lens, and the image processing module that is connected respectively with described video processor and described image capture module, wherein,
Described image capture module is gathered the image information that described zoom lens obtains, and sends to described image processing module;
Described image processing module receives the image information that described image capture module sends, and described image information is carried out pre-service, and the image that pre-service is obtained inputs to connected described video processor;
Described video processor receives the pretreated image of described image processing module, also receives the control signal that includes the zoom solicited message according to the user's request outputting video signal.
7. Zoom camera as claimed in claim 6 is characterized in that, described image capture module, described image processing module and described video processor are integrated in the same chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320151041.1U CN203178545U (en) | 2013-03-28 | 2013-03-28 | Zoom lens and zoom camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320151041.1U CN203178545U (en) | 2013-03-28 | 2013-03-28 | Zoom lens and zoom camera |
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| CN203178545U true CN203178545U (en) | 2013-09-04 |
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| CN201320151041.1U Expired - Fee Related CN203178545U (en) | 2013-03-28 | 2013-03-28 | Zoom lens and zoom camera |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526781A (en) * | 2016-12-30 | 2017-03-22 | 特殊光电科技(中山)有限公司 | High magnification optical zoom lens |
| CN108107538A (en) * | 2018-02-07 | 2018-06-01 | 嘉兴中润光学科技有限公司 | The focus control of Manual focusing camera lens |
-
2013
- 2013-03-28 CN CN201320151041.1U patent/CN203178545U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106526781A (en) * | 2016-12-30 | 2017-03-22 | 特殊光电科技(中山)有限公司 | High magnification optical zoom lens |
| CN108107538A (en) * | 2018-02-07 | 2018-06-01 | 嘉兴中润光学科技有限公司 | The focus control of Manual focusing camera lens |
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Granted publication date: 20130904 Termination date: 20200328 |