CN220932335U - Lens depth of field parameter collection jig - Google Patents
Lens depth of field parameter collection jig Download PDFInfo
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- CN220932335U CN220932335U CN202323000815.3U CN202323000815U CN220932335U CN 220932335 U CN220932335 U CN 220932335U CN 202323000815 U CN202323000815 U CN 202323000815U CN 220932335 U CN220932335 U CN 220932335U
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- depth
- fixing frame
- field parameter
- parameter collection
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- XOMKZKJEJBZBJJ-UHFFFAOYSA-N 1,2-dichloro-3-phenylbenzene Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1Cl XOMKZKJEJBZBJJ-UHFFFAOYSA-N 0.000 description 8
- 230000002349 favourable effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 101001098982 Homo sapiens Propionyl-CoA carboxylase beta chain, mitochondrial Proteins 0.000 description 1
- 102100039025 Propionyl-CoA carboxylase beta chain, mitochondrial Human genes 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a lens depth of field parameter collection jig which comprises a fixed bracket, a lens fixing bracket and a spiral fine adjustment rod; the fixed support is provided with a chute extending along the X direction, the lens fixing frame is arranged in the chute, and the spiral fine adjustment rod is connected with the lens fixing frame and drives the lens fixing frame to move along the X direction in the chute; the camera lens is fixed on the camera lens mount, and the sensor is fixed on the PCB board, and the PCB board is installed on the fixed bolster, and the external decoding board of PCB board and communication line are connected to the computer and pass through the depth of field parameter of image data acquisition camera lens. According to the utility model, the image distance is adjusted by rotating the adjusting screw of the spiral fine adjustment rod, the depth of field parameters corresponding to different image distances can be collected, the image distance adjustment is stable and accurate, and the data recording is accurate and quick.
Description
Technical Field
The utility model relates to the technical field of vision, in particular to a lens depth of field parameter collecting jig.
Background
The depth of field (DOF) parameters of the lens generally have technical parameters provided by a lens manufacturer as references, when in practical application, different sensors are matched with the lens, the DOF can be different, the distances (image distances) between the lens and the sensors on the PCB board are different, and therefore, the actual DOF parameter collection confirmation is needed, and reference data is provided for multi-scene application on later projects.
Disclosure of utility model
The utility model provides a lens depth-of-field parameter collecting jig for solving the problem that in the prior art, the depth-of-field parameters can change due to different distances between a sensor and a lens.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a lens depth of field parameter collection jig comprises a fixed bracket, a lens fixing bracket and a spiral fine adjustment rod; the fixed support is provided with a chute extending along the X direction, the lens fixing frame is arranged in the chute, and the spiral fine adjustment rod is connected with the lens fixing frame and drives the lens fixing frame to move along the X direction in the chute; the lens is fixed on the lens fixing frame, the sensor is fixed on the PCB, the PCB is mounted on the fixing support, and the PCB is externally connected with a decoding plate and a communication line and is connected to a computer and acquires the depth of field parameters of the lens through image data.
Preferably, the cross section of the chute perpendicular to the X direction is in an inverted T shape.
Preferably, the lens fixing frame is of an inverted T-shaped structure matched with the sliding groove in shape and size.
Preferably, the lens is mounted on top of the lens holder.
Preferably, the screw fine tuning rod is parallel to the X direction, and the adjusting screw rod is fixed at a position below the lens on the lens fixing frame.
Preferably, the minimum adjustment distance of the screw fine adjustment rod is 1mm.
Preferably, the precision of the spiral fine tuning rod is 0.1mm.
Preferably, the PCB board is fixedly mounted on one side of the lens, which is close to the screw fine tuning rod.
Preferably, the PCB is fixedly mounted perpendicular to the X direction.
Compared with the prior art, the utility model has the beneficial effects that: the distance (image distance) between the lens and the sensor on the PCB is adjusted by rotating the adjusting screw of the spiral fine adjustment rod, the accurate value of the image distance can be read according to the scale mark on the spiral fine adjustment rod, meanwhile, a computer connected with the PCB can collect corresponding depth of field parameters, the image distance is adjusted for multiple times, and the depth of field parameters corresponding to different image distances can be collected.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a first view angle overall structure of a lens depth parameter collection jig;
Fig. 2 is a schematic diagram of a second view angle overall structure of the lens depth parameter collection jig.
The lens fixing device comprises a fixing support 1, a lens fixing frame 2, a spiral fine adjustment rod 3, a sliding groove 11, a lens 4 and a PCB 5.
Description of the embodiments
For a further understanding of the objects, construction, features, and functions of the utility model, reference should be made to the following detailed description of the preferred embodiments.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 and 2 in combination, a depth-of-field parameter collecting jig for a lens 4 includes a fixing bracket 1, a lens fixing bracket 2, and a screw fine tuning rod 3; the fixed bracket 1 is provided with a chute 11 extending along the X direction, the lens fixing frame 2 is arranged in the chute 11, and the spiral fine adjustment rod 3 is connected with the lens fixing frame 2 and drives the lens fixing frame 2 to move along the X direction in the chute 11; the lens 4 is fixed on the lens fixing frame 2, the sensor is fixed on the PCB 5, the PCB 5 is mounted on the fixing support 1, and the PCB 5 is externally connected with a decoding board and a communication line and is connected to a computer and acquires depth parameters of the lens 4 through image data.
By using the depth-of-field parameter collection jig for the lens 4, the lens 4 is firstly arranged in the lens fixing frame 2, the PCB 5 is fixedly arranged on the fixing frame 1, and the sensor is fixedly arranged on the PCCB board through the traditional surface mount technology, and the distance between the sensor and the lens 4 is the image distance. The PCB 5 is externally connected with a decoding plate and a communication line, is connected to a computer, changes the image distance through the depth of field parameter of the image data acquisition lens 4, can measure the depth of field value corresponding to the lens 4 under the image distance in real time, enables the adjusting screw to move back and forth in a micro-distance manner through rotating the differential sleeve of the spiral fine adjustment rod 3, changes the image distance between the lens 4 and the sensor, reads the accurate value of the image distance according to the scale mark on the spiral fine adjustment rod 3, and reads the depth of field value corresponding to the image distance from the computer; the work of adjusting the image distance and recording the numerical value is repeated for several times, so that the depth of field parameters corresponding to different image distances are collected rapidly.
According to the utility model, the lens fixing frame 2 moves in the X direction in the chute 11 on the fixing support 1, firstly, under the limiting effect of the chute 11, the lens 4 cannot deviate when moving, so that the telescopic distance of the adjusting screw of the screw fine adjustment rod 3 is a variable value of an image distance when the screw fine adjustment rod 3 rotates and adjusts, and the accuracy of a test result is ensured; secondly, the screw fine adjustment rod 3 is of a micrometer structure, accidents and errors caused by false touch can be effectively avoided in a rotation adjustment mode, self adjustment accuracy is high, an operator can quickly adjust the image distance with high accuracy according to the self-contained scale, and data collection is quick and accurate.
In one embodiment, the cross section of the chute 11 perpendicular to the X direction is inverted T-shaped, and the structure can effectively avoid vertical shaking during sliding. Preferably, the lens fixing frame 2 is of an inverted T-shaped structure matched with the chute 11 in shape and size, so that the lens fixing frame 2 is prevented from shaking in the chute 11, and the stability of the lens 4 is ensured.
In a preferred embodiment, the lens 4 is mounted on top of the lens holder 2. The screw fine tuning rod 3 is parallel to the X direction, and its adjusting screw is fixed at a position below the lens 4 on the lens holder 2. The structure is favorable for the lens 4 to avoid the spiral fine tuning rod 3, facilitates the adjustment of the spiral fine tuning rod 3, protects the safety of the lens 4, and the spiral fine tuning rod 3 is positioned below, thereby being favorable for the stability when pushing the lens fixing frame 2.
In one embodiment, the minimum adjustment distance of the screw fine adjustment rod 3 is 1mm; the precision of the screw fine tuning rod 3 is 0.1mm.
In one embodiment, the PCB board 5 is fixedly installed on one side of the lens 4 close to the screw micro-adjustment rod 3; the position of the PCB 5 is fixed, the adjustment of the image distance is convenient, and the PCB 5 is positioned at the rear side of the lens 4, so that the movement of the lens 4 is not influenced. Further, the PCB board 5 is fixedly mounted perpendicular to the X direction.
In summary, according to the lens depth-of-field parameter collection jig disclosed by the utility model, the image distance is adjusted by rotating the adjusting screw of the spiral fine adjustment rod, the depth-of-field parameters corresponding to different image distances can be collected, the image distance adjustment is stable and accurate, and the data recording is accurate and rapid.
The utility model has been described with respect to the above-described embodiments, however, the above-described embodiments are merely examples of practicing the utility model. It should be noted that the disclosed embodiments do not limit the scope of the utility model. On the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.
Claims (9)
1. A lens depth of field parameter collection tool, its characterized in that: comprises a fixed bracket, a lens fixing frame and a spiral fine adjustment rod; the fixed support is provided with a chute extending along the X direction, the lens fixing frame is arranged in the chute, and the spiral fine adjustment rod is connected with the lens fixing frame and drives the lens fixing frame to move along the X direction in the chute; the lens is fixed on the lens fixing frame, the sensor is fixed on the PCB, the PCB is mounted on the fixing support, and the PCB is externally connected with a decoding plate and a communication line and is connected to a computer and acquires the depth of field parameters of the lens through image data.
2. The lens depth of field parameter collection jig of claim 1, wherein: the section of the chute perpendicular to the X direction is in an inverted T shape.
3. The lens depth of field parameter collection jig of claim 2, wherein: the lens fixing frame is of an inverted T-shaped structure matched with the sliding groove in shape and size.
4. The lens depth of field parameter collection jig of claim 3, wherein: the lens is arranged at the top end of the lens fixing frame.
5. The lens depth of field parameter collection jig of claim 4, wherein: the spiral fine tuning rod is parallel to the X direction, and the adjusting screw rod of the spiral fine tuning rod is fixed at the position below the lens on the lens fixing frame.
6. The lens depth of field parameter collection jig of claim 1, wherein: the minimum adjusting distance of the spiral fine adjusting rod is 1mm.
7. The lens depth of field parameter collection jig of claim 1, wherein: the precision of the spiral fine tuning rod is 0.1mm.
8. The lens depth of field parameter collection jig of claim 1, wherein: the PCB is fixedly arranged on one side of the lens, which is close to the spiral fine adjustment rod.
9. The lens depth of field parameter collection jig of claim 8, wherein: the PCB is fixedly arranged perpendicular to the X direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323000815.3U CN220932335U (en) | 2023-11-07 | 2023-11-07 | Lens depth of field parameter collection jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323000815.3U CN220932335U (en) | 2023-11-07 | 2023-11-07 | Lens depth of field parameter collection jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220932335U true CN220932335U (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323000815.3U Active CN220932335U (en) | 2023-11-07 | 2023-11-07 | Lens depth of field parameter collection jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220932335U (en) |
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2023
- 2023-11-07 CN CN202323000815.3U patent/CN220932335U/en active Active
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