CN204859326U - Camera lens and camera - Google Patents
Camera lens and camera Download PDFInfo
- Publication number
- CN204859326U CN204859326U CN201520544023.9U CN201520544023U CN204859326U CN 204859326 U CN204859326 U CN 204859326U CN 201520544023 U CN201520544023 U CN 201520544023U CN 204859326 U CN204859326 U CN 204859326U
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- Prior art keywords
- camera lens
- tailgate
- screw
- sensor board
- substrate
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Abstract
The utility model provides a camera lens and camera. The camera lens includes the camera lens tailboard, is provided with sensor plate's base plate, and passes substrate connection arrives two at least fixed columns on the camera lens tailboard, the fixed column drives the base plate is relative the seesaw of camera lens tailboard. The utility model discloses a camera lens can be eliminated image sensor and encapsulate the influence that brings with PCB board welding error precision, has reduced the machining precision requirement to camera lens tailboard installation face and correlative, has improved the use qualification rate of material, has reduced the performance accuracy requirement to operating personnel, and the regulation effect is better.
Description
Technical field
The utility model relates to a kind of video monitoring equipment, and in particular to a kind of camera lens.
Background technology
Imageing sensor is the core component in camera lens, plays critical effect to realizing optical signalling to the transformation of electrical signal and output.For pursuing high definition or super clear image, use the imageing sensor of high pixel, very-high solution to become a kind of trend, and the transducer of this class often have larger photosensitive target surface.
The sensor board being applied to camera lens in prior art mainly contains two kinds of assembling modes:
1) screw scheme is directly beaten: rely on camera lens reference column alignment sensor plate, realize the sensor board mode that directly or indirectly assembling is fixing on camera lens tailgate by screw.But the cumulative errors that this assembling mode causes are comparatively large, higher to the requirement on machining accuracy of camera lens tailgate and auxiliary materials.
2) glue scheme is put: use glue to be fixed on substrate by sensor board, then transducer and substrate are integrally installed on camera lens by appropriate ways.Although this mounting means with sensor protection glass for positioning datum; avoid the cumulative errors of directly playing screw; but owing to there will be certain contraction after glue sclerosis; easily occur expanding with heat and contract with cold with variation of ambient temperature in use procedure, therefore also can cause impact to a certain degree to the precision of coke number after the entirety of video camera.
Because these two kinds of assembling modes all can cause the theoretical imaging surface on sensor photosensitive face and corresponding camera lens to there is the problem at inclination angle, and in the camera lens of imageing sensor with large target surface, the remarkable decline of picture quality will be caused in slight inclination angle, therefore also needs further to adjust the angle of inclination of transducer.
Chinese invention patent CN1959519A discloses a kind of sensor perturbations method of adjustment, adopts the method for filling elastic rubber ring between camera lens and sensor board (substrate), realizes the adjustment of sensor perturbations angle and the adjustment of focusing plane.But this method needs first at twice (screws out/screws in operation, walk a total journey of optics) relative position of adjusting mirror headstock and camera lens, search out the articulation point of two contrapositions, with second time articulation point for starting point, regulate the screw near this articulation point, until whole image presents uniform dim state, then pass through the relative position of adjusting mirror headstock and camera lens, search out entirety focusing plane clearly.Such a process increases the process finding back focus, operating procedure is complicated, requires higher, easily occur error, be unfavorable for the raising of operating efficiency the performance accuracy of operating personnel.
Utility model content
Technical problem to be solved in the utility model is: existing non-adjustable assembling scheme is difficult to ensure that sensor photosensitive face is vertical with camera lens optical axis, and existing control method complicated operation, inefficiency, higher to the dependence of operating personnel, easily there is erroneous judgement.
For the problems referred to above, the utility model proposes a kind of camera lens, described camera lens comprises camera lens tailgate, is provided with the substrate of sensor board, and being connected at least two fixed legs on described camera lens tailgate through described substrate, described fixed leg drives the relatively described camera lens tailgate of described substrate to seesaw.By regulating fixed leg, the distance between adjustable substrate and camera lens tailgate, and then the angle of inclination of adjustment sensor board.
In one embodiment, the relative both sides of described camera lens tailgate are provided with the fixing hole matched with described fixed leg.
In one embodiment, the part that described fixed leg is connected with described camera lens tailgate is arranged with spring or cushion, can prevent sensor board and substrate from sliding on fixed lever, realizes better fixing substrate.
In one embodiment, the quantity of described fixing hole is three, the leg-of-mutton geometric center being summit with three described fixing holes and the optical axis axis coinciding of described camera lens.This structure not only can play the superior stability of triangle, can also ensure that the initial makeup location of sensor board is close to the perpendicular position of the optical axis of the light hole with camera lens, improves and regulates efficiency as much as possible.
In one embodiment, described sensor board is arranged at the side of described substrate near described camera lens tailgate.And in another embodiment, described sensor board is also arranged at the side of described substrate away from described camera lens tailgate.Specifically can determine according to the rear coke number of camera lens, thus the regulated quantity to screw can be reduced, be conducive to the position of quick adjustment to expection.
In one embodiment, between described camera lens tailgate and described substrate, be provided with shading pad, prevent extraneous light from entering camera lens from sensor board and the gap between substrate and camera lens tailgate.
The utility model also proposed a kind of video camera, and described video camera has foregoing camera lens.
According to the embodiment of camera lens of the present utility model, removal of images sensor package can weld the impact that error precision brings with pcb board, reduce the requirement on machining accuracy to camera lens tailgate installed surface and correlative, improve the use qualification rate of material, reduce the performance accuracy requirement to operating personnel, simple to operate, regulating effect is better.Meanwhile, the application of imageing sensor in integrated lens of large target surface, high parsing power widened by video camera of the present utility model.
Accompanying drawing explanation
Also will be described in more detail the utility model with reference to accompanying drawing based on embodiment hereinafter.
Fig. 1 is the decomposing state schematic diagram of the camera lens of embodiment of the present utility model.
Fig. 2 is the first assembling mode schematic diagram of the sensor board assembly of embodiment of the present utility model.
Fig. 3 is the second assembling mode schematic diagram of the sensor board assembly of embodiment of the present utility model.
Fig. 4 is the assembled state schematic diagram of the camera lens of embodiment of the present utility model.
In the accompanying drawings, identical parts use identical Reference numeral.Accompanying drawing is not according to the scale of reality.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 1 show schematically show the decomposing state schematic diagram of the camera lens of embodiment of the present utility model, for for purpose of brevity, only show schematically show the assembly relevant to the imageing sensor angle of inclination of adjustable lens, eliminate miscellaneous part in figure.
Camera lens 10 has camera lens tailgate 11, is provided with the substrate 22 of sensor board 21, and is connected at least two fixed legs 30 on described camera lens tailgate 11 through substrate 22.Fixed leg 30 can drive the relative camera lens tailgate 11 of substrate 22 to seesaw.Sensor board 21 is the pcb board of integrated image sensor (CMOS or CCD), is to realize optical signalling in video camera to change and one of key component exported to the signal of telecommunication.
Fixed leg 30 is screw, is fixed in the screw 12,13 on camera lens tailgate 11 through the through hole on substrate 22.Sensor board 21 arranges on substrate 22, can move with substrate 22.Sensor board 21 forms sensor board assembly 20 together with substrate 22.
For adjusting the angle of inclination of sensor board assembly 20, screw 30 is at least two, is each passed through the through hole 23,24 of the relative both sides of substrate 22 and is fixed on camera lens tailgate 11.And then the angle of inclination of a screw 30 that can realize wherein by regulating an other screw 30 to adjust sensor board 21 when fixing.
In a preferred embodiment, the quantity of screw 30 is three, and the first through hole 24 being each passed through the upper and lower relative both sides of substrate 22 is connected with the first screw 12 on camera lens tailgate 11 and the second through hole 13 with the second through hole 23.
When regulating the angle of inclination of sensor board 21, first regulate be connected to the first screw 12 screw 30 relatively camera lens tailgate 11 seesaw, until the point on sensor board 21 near the first through hole 24 is point clearly.Now, no longer regulate the screw 30 in the first screw 12, and using the normative reference of the readability of this point on sensor board 21 as subsequent adjustment.
Then, regulate the length be screwed into through the screw 30 of the second through hole 23 on substrate 22 in second screw 13, namely the screw 30 rotated in the second through hole 23 drives the relative camera lens tailgate 11 of sensor cluster 20 to seesaw, until the point on sensor board near the second through hole 23 is identical with the readability of the point near the first through hole 24 simultaneously.
For preventing sensor board assembly 20 from seesawing on screw 30, the part of screw 30 between sensor board assembly 23 and camera lens tailgate 11 is also arranged with the flexible member such as spring or cushion.What adopt in the present embodiment is spring 40.As shown in Figure 1, camera lens tailgate 11 also offers the annular groove 14 for putting spring 40, annular groove 14 is arranged around screw 12,13.The degree of depth of groove 14 should be not less than the minimum length had when spring 40 compresses, thus while realization positions spring 40, also can ensure that sensor cluster 20 is maximum and can be adjusted to the degree fitted with camera lens tailgate 11, ensure maximum adjustment space.
Screw 12,13 is arranged on the boss on camera lens tailgate 11.As shown in Figure 1, spring 40 is set in the periphery of boss.For the ease of regulating, the height of boss can carry out primary Calculation according to coke number after the entirety of the parameter of camera lens 10 and transducer, make to be fixed to camera lens tailgate 11 when sensor board assembly 20, namely when screw 30 is tightened against in the first screw 12, on sensor board 21, near this point, point logically ensures as articulation point, thus can be used as the follow-up reference standard regulated the clear picture degree near two the second screws 13.Can regulating time be saved like this, reduce regulating step, increase degree of regulation.Meanwhile, the spring 40 on the boss being sheathed on the first screw 12 place can be omitted, but only on the boss at the second screw 13 place, be arranged with spring 40.
Preferably, the first screw 12 is consistent with the height of the boss corresponding to the second screw 13.In photosensitive region near two the second screws 13, the readability of image is with when in the photosensitive region near the first screw 12, the readability of image is roughly the same, stops regulating the screw 30 matched with the second screw 13.Boss can be with camera lens tailgate 11 one-body molded, is also arranged on camera lens tailgate 11 by the mode such as inlaying.
In the embodiment illustrated in fig. 1, the quantity of the first screw 12 is one, two of the quantity of the second screw 13.This structure is simple, easy and simple to handle, can also utilize the stability characteristic (quality) of equilateral triangle, realize better fixing substrate.But those skilled in the art should be understandable that, the utility model does not do any restriction specifically to the quantity of screw 30, screw 12,13.Such as, the quantity of the second screw 13 also can be three or more, can select according to actual needs, as long as can realize adjustment object of the present utility model.
Camera lens tailgate 11 offers light hole A.Preferably, the triangle being summit with first screw 12 and two the second screws 13 is for equilateral triangle, and the center superposition of its geometric center and light hole A.This layout can make the photosurface of transducer vertical with optical axis as much as possible, reduces the operation of subsequent adjustment, is conducive to rapidly point near the second screw 13 on sensor board 21 being adjusted to articulation point.
In addition, between camera lens tailgate 11 and sensor board assembly 20, also can be provided with shading piece 50, prevent extraneous light from entering camera lens 10 from the gap between sensor board assembly 20 and camera lens tailgate 11.But, when after camera lens 10, Jiao is less, when after assembling, imageing sensor can enter in camera lens light hole, then do not need to arrange shading piece 50.Those skilled in the art can be arranged flexibly according to actual conditions.Shading piece 50 is provided with open C, and the size of open C should be not less than the size of the opening B on light hole A and substrate, blocks can not produce the light through light hole.
Preferably, camera lens 10 is the integrated lens that integrated optics system is built-in, can realize auto-focus function in conjunction with supporting exploitation.Sensor board 21 is connected with external equipment by cable 60.After integrated lens 10 is energized, by the automatic focusing function of integrated lens 10, utilize relevant software kit, external equipment can calculate the regulated quantity regulated needed for sensor board assembly 20 angle of inclination, the i.e. regulated quantity at the angle of inclination of imageing sensor photosurface, and exported by real time screen, thus realize more convenient and regulate accurately, to improving the precision of integrated lens advantageously.Preferably, external equipment can be realized regulated quantity and be quantified as regulated quantity to screw 30, such as, twist 1 circle left, twist 2/3 circle etc. to the right.
Fig. 2, Fig. 3 respectively illustrate two kinds of assembling modes of sensor board assembly.Wherein, when rear Jiao of camera lens 10 is shorter, before sensor board 21 is arranged on substrate 22 (Fig. 2); When rear Jiao of camera lens 10 has larger surplus, after sensor board 21 is arranged on substrate 22 (Fig. 3), so can adapt to have different after the camera lens of coke number.Time after as shown in Figure 3 sensor board 21 being arranged on substrate 22, substrate 22 having opening B, all expose to make the imageing sensor be arranged on sensor board 21.Simultaneously, deformation is produced because of External Force Acting for avoiding sensor board, as shown in Figure 2 and Figure 3, corresponding breach 211,212 can be offered on sensor board 21 according to the position of the boss at the first screw 12 and the second screw 13 place, when being fixed on camera lens tailgate 11 to make sensor board assembly, the boss corresponding to the first screw 12, second screw 13 is each passed through breach 211,212 and leaves certain space with the edge of sensor board 21.Further, spring 40 also can support through breach 222 and can not contact with sensor board 21 on substrate 22.
When Fig. 4 shows before sensor board 21 is arranged on substrate 22, the assembled state schematic diagram of the camera lens of embodiment of the present utility model.
Apply the camera lens of embodiment of the present utility model, can realize regulating fast and effectively the angle of inclination of imageing sensor photosurface, easy and simple to handle, thus significantly reduce the requirement to operating personnel.Preferably, when the integrated camera lens of camera lens, the step that the video camera of application the utility model embodiment carries out the adjustment of sensor board evenness is as follows:
Select the mounting means of sensor board assembly according to rear Jiao of integrated lens, by screw 30, sensor board assembly 20, spring 40, shading piece 50 (optionally can omit) are fixed on camera lens tailgate 11.First tightened by the screw 30 coordinated with the first screw 12, the focusing of adjustment camera lens 10 makes the image near this fixed leg be clearly.Then, regulate the screw 30 coordinated with the second screw 13, make the photosurface of sensor board substantially vertical with the optical axis of integrated lens.Wherein, the screw 30 matched with the first screw is being tightened to after in the first screw 12 and will no longer regulating.
Subsequently, utilize the automatic focusing function of integrated lens 10, external equipment calculates the regulated quantity needed for screw 30 matched with the second screw 13, and is exported by real time screen.Observe the image exported in computer equipment, correspondingly regulate the screw 30 matched with the second screw 13, the image near the second screw is to clear.
After completing above-mentioned adjustment, cause the photosurface of imageing sensor can not be vertical with optical axis for preventing screw loosening from causing sensor board assembly to tilt, screw 30 and substrate 22 contact-making surface place can be cured.
Although be described the utility model with reference to preferred embodiment, when not departing from scope of the present utility model, various improvement can be carried out to it and parts wherein can be replaced with equivalent.Especially, only otherwise there is structural hazard, the every technical characteristic mentioned in each embodiment all can combine in any way.The utility model is not limited to specific embodiment disclosed in literary composition, but comprises all technical schemes fallen in the scope of claim.
Claims (8)
1. a camera lens, it is characterized in that, described camera lens comprises camera lens tailgate, is provided with the substrate of sensor board, and is connected at least two fixed legs on described camera lens tailgate through described substrate, and described fixed leg drives the relatively described camera lens tailgate of described substrate to seesaw.
2. camera lens according to claim 1, is characterized in that, the relative both sides of described camera lens tailgate is provided with the fixing hole matched with described fixed leg.
3. camera lens according to claim 1 and 2, is characterized in that, the part that described fixed leg is connected with described camera lens tailgate is arranged with spring or cushion.
4. camera lens according to claim 2, is characterized in that, the quantity of described fixing hole is three, the leg-of-mutton geometric center being summit with three described fixing holes and the optical axis axis coinciding of described camera lens.
5. camera lens according to claim 1, is characterized in that, described sensor board is arranged at the side of described substrate near described camera lens tailgate.
6. camera lens according to claim 1, is characterized in that, described sensor board is arranged at the side of described substrate away from described camera lens tailgate.
7. camera lens according to claim 1, is characterized in that, between described camera lens tailgate and described substrate, be provided with shading pad.
8. a video camera, is characterized in that, described video camera has camera lens as claimed in any of claims 1 to 7 in one of claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544023.9U CN204859326U (en) | 2015-07-24 | 2015-07-24 | Camera lens and camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520544023.9U CN204859326U (en) | 2015-07-24 | 2015-07-24 | Camera lens and camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204859326U true CN204859326U (en) | 2015-12-09 |
Family
ID=54749837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520544023.9U Expired - Fee Related CN204859326U (en) | 2015-07-24 | 2015-07-24 | Camera lens and camera |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204859326U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109120830A (en) * | 2018-10-19 | 2019-01-01 | 天津天地伟业信息系统集成有限公司 | A kind of temperature-self-adaptive compensation method of burnt variation after camera lens is mechanical |
| CN109348095A (en) * | 2018-09-28 | 2019-02-15 | 魏润杰 | A kind of microlens array positioning mechanism |
| CN110392190A (en) * | 2018-04-20 | 2019-10-29 | 杭州海康威视数字技术股份有限公司 | A kind of focus control and thermal infrared imager |
| CN115278003A (en) * | 2020-09-08 | 2022-11-01 | 杭州海康威视数字技术股份有限公司 | Photographing apparatus |
-
2015
- 2015-07-24 CN CN201520544023.9U patent/CN204859326U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392190A (en) * | 2018-04-20 | 2019-10-29 | 杭州海康威视数字技术股份有限公司 | A kind of focus control and thermal infrared imager |
| CN109348095A (en) * | 2018-09-28 | 2019-02-15 | 魏润杰 | A kind of microlens array positioning mechanism |
| CN109120830A (en) * | 2018-10-19 | 2019-01-01 | 天津天地伟业信息系统集成有限公司 | A kind of temperature-self-adaptive compensation method of burnt variation after camera lens is mechanical |
| CN109120830B (en) * | 2018-10-19 | 2020-11-06 | 天津天地伟业信息系统集成有限公司 | Temperature self-adaptive compensation method for mechanical back focus change of lens |
| CN115278003A (en) * | 2020-09-08 | 2022-11-01 | 杭州海康威视数字技术股份有限公司 | Photographing apparatus |
| CN115278003B (en) * | 2020-09-08 | 2023-07-25 | 杭州海康威视数字技术股份有限公司 | Photographing apparatus |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20200724 |