Focal-length-variable point light source inspection lens equipment

Abstract

The utility model relates to a variable focal length point light source inspection lens device, comprising a point light source fixing seat; the point light source fixing seat is connected with a point light source; the point light source fixing seat is connected with the scale rod; a point light source differentiation sheet; the point light source differentiation piece is connected with the point light source piece pressing ring, and the point light source piece pressing ring is matched with the point light source differentiation piece; a fine adjustment cylinder; the fine adjustment cylinder comprises an inner sleeve and an outer sleeve; the point light source fixing seat is arranged in an inner cavity of the fine adjustment cylinder; and the point light source differentiation sheet is fixed on the fine adjustment cylinder through the point light source sheet pressing ring. The device has the advantages that the focal length of the light spot source can be changed according to detection requirements; and moreover, the focus can be quickly adjusted and the shape of the point light source can be quickly changed, so that the inspection requirement of a camera lens is facilitated, the time cost required for adjusting equipment is greatly saved, and the production efficiency and the use cost are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of optical positioning, in particular to a point light source inspection lens device with variable focal length. Background Art

[0002] Existing point light source lens inspection equipment is generally composed of a light source, a light source graticule and matching structural parts. By changing different light sources, the lenses of different cameras can be inspected. Currently, the commonly used point light source lens inspection equipment on the market does not have variable focal length and fine-tuning functions, has poor interchangeability, and is complicated to operate. Utility Model Content

[0003] In response to the problems existing in the prior art, the utility model provides a point light source inspection lens device with variable focal length. The focal length can be adjusted by moving the scale rod fixing seat and the fine-tuning tube. When the point light source differentiation piece needs to be replaced, the inspection requirement can be met by simply unscrewing the fine-tuning tube and replacing the point light source differentiation piece, which greatly improves work efficiency, greatly saves use costs, and improves convenience and economy during use.

[0004] The utility model proposes the following technical solution: a point light source inspection lens device with variable focal length, comprising:

[0005] Point light source fixing seat; the point light source fixing seat is connected to a point light source; the point light source fixing seat is connected to a scale rod;

[0006] Point light source differentiation sheet; the point light source differentiation sheet is connected to a point light source sheet pressure ring, and the point light source sheet pressure ring is arranged in conjunction with the point light source differentiation sheet;

[0007] Fine-tuning cylinder; the fine-tuning cylinder includes an inner sleeve and an outer sleeve; the point light source fixing seat is arranged in the inner cavity of the fine-tuning cylinder, and the point light source differentiation sheet is fixed to the fine-tuning cylinder through the point light source sheet pressure ring. The point light source fixing seat is the foundation of the equipment and is responsible for fixing and supporting the light source. The point light source fixing seat not only ensures the stability of the light source, but is also connected to the scale rod, so that the position of the light source can be accurately adjusted. The light source is installed on the point light source fixing seat and is responsible for emitting light to form a point light source. The scale rod is connected to the point light source fixing seat, through which the position of the point light source can be accurately adjusted. The function of the point light source differentiation sheet is to differentiate the point light source. By cooperating with the point light source sheet pressure ring, the position of the differentiation sheet can be accurately adjusted, thereby changing the shape and size of the point light source. The point light source sheet pressure ring cooperates with the point light source differentiation sheet to ensure the stability of the position of the differentiation sheet and facilitate fine-tuning. The fine-tuning cylinder is composed of an inner sleeve and an outer sleeve. The point light source fixing seat is arranged in the inner cavity of the fine-tuning cylinder, and the point light source differentiation sheet is fixed to the outer sleeve through the point light source sheet pressure ring. This design allows the user to fine-tune the position of the point light source, thereby achieving a change in focal length.

[0008] When you need to change the shape of a point light source, you only need to replace the point light source differentiation sheet to achieve the shape and size of the point light source. The replacement process is very easy. Since the point light source differentiation sheet is pressed into the fine-tuning cylinder by the point light source sheet pressure ring, you can take out the point light source sheet pressure ring, replace it and press it into the fine-tuning cylinder.

[0009] Furthermore, a scale rod fixing seat is sleeved on the scale rod; the scale rod and the scale rod fixing seat are fixed by a connecting piece, and the connecting piece is a nut. The scale rod fixing seat is sleeved on the scale rod and fixed to the scale rod by a connecting piece. This connecting piece is a nut, which can firmly fix the scale rod on the scale rod fixing seat to ensure the stability of the position of the scale rod, so as to facilitate precise adjustment. This design makes the equipment more stable and reliable during operation, and improves the accuracy and precision of the inspection. As an adjustment tool, the scale rod is specially designed to make a large-scale and detailed adjustment of the focal length of the point light source through the point light source differentiation slice. Only by sliding the scale rod, the focal length of the point light source can be accurately controlled. When adjusted to a position that meets specific needs, the position of the scale rod can be firmly locked by the fixing nut equipped on the scale rod fixing seat to ensure that it remains stable during use and does not accidentally loosen or deviate. Such a design not only provides a convenient adjustment method, but also ensures the reliability and stability of the adjustment result.

[0010] Furthermore, the scale rod is connected with a scale rod sliding cover, and the scale rod sliding cover is arranged between the point light source fixing seat and the scale rod fixing cover. The scale rod is equipped with a sliding cover, and the sliding cover is precisely arranged between the point light source fixing seat and the scale rod fixing seat. This design is intended to protect the scale rod from damage by external factors, thereby ensuring the long-term stability and accuracy of the equipment. At the same time, by adjusting the sliding cover, the position of the point light source can be more conveniently adjusted to make it more in line with the inspection requirements. This design further improves the functionality and practicality of the equipment and brings great convenience to the operation.

[0011] Furthermore, a fixed cover is connected to the edge of the fine-tuning tube near the point light source, and the fixed cover is arranged in cooperation with the fine-tuning tube. A fixed cover is connected to the edge of the fine-tuning tube near the point light source. The fixed cover is closely matched with the fine-tuning tube to ensure the stability and accuracy of the device. This design not only enhances the integrity of the device, but also makes the operation easier, meeting the requirements for the stability and accuracy of the device.

[0012] Furthermore, a fine thread is provided between the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are nested and connected. Between the inner sleeve and the outer sleeve, a tight fine thread is provided, and these fine threads form a firm nested connection between the inner sleeve and the outer sleeve. This unique connection method not only significantly enhances the stability of the equipment, but also provides a more precise and reliable adjustment mechanism for the user. Through this design, the position of the point light source can be adjusted more easily to meet various inspection needs. This design not only improves the practicality of the equipment, but also makes it more in line with usage habits and needs. When the focal length changes to a point where it can be used and needs to be fine-tuned, the focal length can be fine-tuned by screwing the thread of the fine-tuning barrel, so that the light spot is clearer. The relative position between the two sleeves will change slightly and accurately by screwing the thread of the fine-tuning barrel, so that the focal length changes.

[0013] Furthermore, the point light source differentiation plate is pressed on the point light source differentiation sheet. The point light source differentiation plate is precisely placed on the point light source differentiation sheet, and by applying a certain pressure, the stability and functionality of the point light source differentiation sheet are ensured. This design enables the point light source differentiation sheet to maintain the stability of its shape and position when subjected to a certain pressure, thereby ensuring the accuracy and consistency of the point light source. This design improves the reliability and accuracy of the equipment and can complete the inspection work more accurately.

[0014] Furthermore, the scale rod sliding cover is nested outside the scale rod; the scale rod sliding cover is fixedly connected to the fine-tuning cylinder. The scale rod sliding cover is tightly nested outside the scale rod, and this design ensures the stability and accuracy of the scale rod sliding cover. At the same time, the scale rod sliding cover is fixedly connected to the fine-tuning cylinder, and this connection method enhances the integrity and functionality of the device. Through this design, the position of the point light source can be adjusted more conveniently to meet different inspection requirements. This design improves the operability and practicality of the device. When a large focal length adjustment is required, the scale rod can be directly moved to achieve a large-scale focal length change. The point light source on the scale rod and the point light source fixing seat will not be displaced relative to the scale rod. Therefore, when a large focus adjustment is required, the scale rod is pulled, and the position of the point light source can be greatly changed accordingly.

[0015] Furthermore, the fixed cover is connected to an interface of a transfer function analyzer.

[0016] Furthermore, a driving circuit board is connected to the fixed cover; the driving circuit board includes a voltage conversion module, a charge and discharge module, and a constant current driving module, and the voltage conversion module and the charge and discharge module are welded on the driving circuit board. The fixed cover is connected to the transfer function analyzer interface through a data line to ensure stable signal transmission. A driving circuit board is connected to the fixed cover, which is responsible for providing a stable driving signal. The driving circuit board includes a voltage conversion module, a charge and discharge module, and a constant current driving module. Among them, the voltage conversion module and the charge and discharge module are welded on the driving circuit board to form a complete circuit system. This design enables the device to provide a more stable and reliable driving signal during operation, thereby improving the accuracy and precision of the inspection. At the same time, this modular design also facilitates the maintenance and upgrading of the equipment.

[0017] The utility model has the following advantages.

[0018] The focal length of the point light source can be changed according to the inspection requirements. And the focus can be adjusted and the shape of the point light source can be changed quickly, which is convenient for the inspection needs of the camera lens, greatly saving the time cost required for adjusting the equipment, and greatly improving production efficiency and use costs. This point light source inspection lens equipment solves the problems of the traditional focal length being unable to be adjusted and the poor changeability of the shape and size of the point light source, and realizes the rapid adjustment of the focal length and the change of the shape of the point light source during the inspection operation, which greatly saves the use cost, and the convenience and economy during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The utility model is a schematic diagram of the overall structure of a point light source inspection lens device with variable focal length.

[0020] In the figure: 1-fixed cover; 2-point light source sheet pressure ring; 3-point light source differentiation sheet; 4-fine-tuning cylinder; 5-point light source; 6-point light source fixing seat; 7-scale rod; 8-scale rod sliding cover; 9-scale rod fixing seat; 10-fixed nut. DETAILED DESCRIPTION

[0021] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the utility model defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the utility model.

[0022] With reference to the accompanying drawings of the present invention, the present invention will be further described below in conjunction with embodiments.

[0023] Embodiment 1 is as attached Figure 1As shown, a point light source inspection lens device with variable focal length proposed in an embodiment of the utility model includes: 1-fixed cover; 2-point light source sheet pressure ring; 3-point light source differentiation sheet; 4-fine-tuning cylinder; 5-point light source; 6-point light source fixing seat; 7-scale rod; 8-scale rod sliding cover; 9-scale rod fixing seat; 10-fixing nut.

[0024] Embodiment 1 is as attached Figure 1 As shown, the following technical solution is proposed: a point light source inspection lens device with variable focal length, comprising:

[0025] Point light source fixing seat; the point light source fixing seat is connected to a light source; the point light source fixing seat is connected to a scale rod;

[0026] Point light source differentiation sheet; the point light source differentiation sheet is connected to a point light source sheet pressure ring, and the point light source sheet pressure ring is arranged in conjunction with the point light source differentiation sheet;

[0027] Fine-tuning cylinder; the fine-tuning cylinder includes an inner sleeve and an outer sleeve; the point light source fixing seat is arranged in the inner cavity of the fine-tuning cylinder, and the point light source differentiation sheet is fixed to the fine-tuning cylinder through the point light source sheet pressure ring. The point light source fixing seat is the foundation of the equipment, which is responsible for fixing and supporting the light source. The point light source fixing seat not only ensures the stability of the point light source, but also is connected to the scale rod, so that the position of the point light source can be accurately adjusted. The point light source is installed on the point light source fixing seat, which is responsible for emitting light to form a point light source. The scale rod is connected to the point light source fixing seat, through which the position of the point light source can be accurately adjusted. The function of the point light source differentiation sheet is to differentiate the point light source. By cooperating with the point light source sheet pressure ring, the position of the differentiation sheet can be accurately adjusted, thereby changing the shape and size of the point light source. The point light source sheet pressure ring cooperates with the point light source differentiation sheet to ensure the stability of the position of the differentiation sheet and facilitate fine-tuning. The fine-tuning cylinder is composed of an inner sleeve and an outer sleeve. The point light source fixing seat is arranged in the inner cavity of the fine-tuning cylinder, and the point light source differentiation sheet is fixed to the outer sleeve through the point light source sheet pressure ring. This design allows the user to fine-tune the position of the point light source, thereby achieving a change in focal length.

[0028] Specifically, the point light source differentiation sheet is circular, and the point light source sheet pressure ring is a circle with a diameter slightly smaller than or equal to that of the point light source differentiation sheet. At this time, the internal cavity of the fine-tuning tube is also required to be circular. Generally speaking, the fine-tuning tube has a step on one side of the fixed lens, which can clamp the point light source differentiation sheet. The point light source sheet pressure ring fixes the point light source differentiation sheet on the step, and a fixed cover is installed on the outside.

[0029] When you need to change the shape of a point light source, you only need to replace the point light source differentiation sheet to achieve the shape and size of the point light source. The replacement process is very easy. Since the point light source differentiation sheet is pressed into the fine-tuning cylinder by the point light source sheet pressure ring, you can take out the point light source sheet pressure ring, replace it and press it into the fine-tuning cylinder.

[0030] In some embodiments, a scale rod fixing seat is sleeved on the scale rod; the scale rod and the scale rod fixing seat are fixed by a connecting piece, and the connecting piece is a nut. The scale rod fixing seat is sleeved on the scale rod and fixed to the scale rod by a connecting piece. This connecting piece is a nut, which can firmly fix the scale rod on the scale rod fixing seat to ensure the stability of the position of the scale rod, so as to facilitate precise adjustment. This design makes the device more stable and reliable during operation, and improves the accuracy and precision of the inspection. As an adjustment tool, the scale rod is specially designed to make a large-scale and detailed adjustment of the focal length of the point light source through the point light source differentiation slice. Only by sliding the scale rod, the focal length of the point light source can be accurately controlled. When adjusted to a position that meets specific needs, the fixed nut equipped on the scale rod fixing seat can be relied on to firmly lock the position of the scale rod to ensure that it remains stable during use and does not accidentally loosen or deviate. Such a design not only provides a convenient adjustment method, but also ensures the reliability and stability of the adjustment result.

[0031] Specifically, the scale rod and the point light source fixing seat are an integrated structure, and the point light source is clamped on the groove of the point light source fixing seat, or a hanging method can be used to maintain a stable point light source. The point light source is on the side of the point light source fixing seat close to the fixing cover.

[0032] In some embodiments, the scale bar is connected with a scale bar sliding cover, and the scale bar sliding cover is arranged between the point light source fixing seat and the scale bar fixing cover. The scale bar is equipped with a sliding cover, and the sliding cover is precisely arranged between the point light source fixing seat and the scale bar fixing seat. This design is intended to protect the scale bar from damage by external factors, thereby ensuring the long-term stability and accuracy of the device. At the same time, by adjusting the sliding cover, the position of the point light source can be more conveniently adjusted to make it more in line with the inspection requirements. This design improves the functionality and practicality of the device in some embodiments, and brings great convenience to the operation.

[0033] Specifically, generally speaking, the scale rod fixing seat is stuck on the scale rod sliding cover. Since the direction of the fine-tuning barrel is generally placed horizontally, and the scale rod sliding cover is fixed in the fine-tuning barrel, the relative position of the scale rod sliding cover and the fine-tuning barrel will not change, and the relative position of the scale rod fixing seat and the scale rod will change. The scale rod fixing seat slides along the scale rod and is fixed with screws after reaching the approximate position. The scale rod sliding cover, the scale rod and the scale rod fixing seat, as well as the point light source and the point light source fixing seat are all in the inner cavity of the fine-tuning barrel.

[0034] In some embodiments, a fixed cover is connected to the edge of the fine-tuning tube near the point light source, and the fixed cover is arranged in cooperation with the fine-tuning tube. A fixed cover is connected to the edge of the fine-tuning tube near the point light source. The fixed cover is closely matched with the fine-tuning tube to ensure the stability and accuracy of the device. This design not only enhances the integrity of the device, but also makes the operation easier and meets the requirements for the stability and accuracy of the device.

[0035] In some embodiments, a fine thread is provided between the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are nested and connected. Between the inner sleeve and the outer sleeve, a tight fine thread is provided, and these fine threads form a firm nested connection between the inner sleeve and the outer sleeve. This unique connection method not only significantly enhances the stability of the device, but also provides a more accurate and reliable adjustment mechanism for the user. Through this design, the position of the point light source can be adjusted more easily to meet various inspection needs. This design not only improves the practicality of the equipment, but also makes it more in line with usage habits and needs. When the focal length changes to a point where it can be used and needs to be fine-tuned, the focal length can be fine-tuned by screwing the thread of the fine-tuning barrel, so that the light spot is clearer. The relative position between the two sleeves will change slightly and accurately when the thread of the fine-tuning barrel is screwed, so that the focal length changes.

[0036] In some embodiments, the point light source differentiation plate is pressed on the point light source differentiation sheet. The point light source differentiation plate is precisely placed on the point light source differentiation sheet, and the stability and functionality of the point light source differentiation sheet are ensured by applying a certain pressure. This design enables the point light source differentiation sheet to maintain the stability of its shape and position when subjected to a certain pressure, thereby ensuring the accuracy and consistency of the point light source. This design improves the reliability and accuracy of the equipment and can complete the inspection work more accurately.

[0037] In some embodiments, the scale rod sliding cover is nested outside the scale rod; the scale rod sliding cover is fixedly connected to the fine-tuning cylinder. The scale rod sliding cover is tightly nested outside the scale rod, and this design ensures the stability and accuracy of the scale rod sliding cover. At the same time, the scale rod sliding cover is fixedly connected to the fine-tuning cylinder, and this connection method enhances the integrity and functionality of the device. Through this design, the position of the point light source can be adjusted more conveniently to meet different inspection requirements. This design improves the operability and practicality of the device. When a large focal length adjustment is required, the scale rod can be directly moved to achieve a large-scale focal length change. The point light source on the scale rod and the point light source fixing seat will not be displaced relative to the scale rod. Therefore, when a large focus adjustment is required, the scale rod is pulled, and the position of the point light source can be greatly changed accordingly.

[0038] In some embodiments, the fixed cover is connected to a transfer function analyzer interface.

[0039] In some embodiments, a driving circuit board is connected to the fixed cover; the driving circuit board includes a voltage conversion module, a charge and discharge module, and a constant current driving module, and the voltage conversion module and the charge and discharge module are welded on the driving circuit board. The fixed cover is connected to the transfer function analyzer interface through a data line to ensure stable signal transmission. A driving circuit board is connected to the fixed cover, which is responsible for providing a stable driving signal. The driving circuit board includes a voltage conversion module, a charge and discharge module, and a constant current driving module. Among them, the voltage conversion module and the charge and discharge module are welded on the driving circuit board to form a complete circuit system. This design enables the device to provide a more stable and reliable driving signal during operation, thereby improving the accuracy and precision of the inspection. At the same time, this modular design also facilitates the maintenance and upgrading of the equipment.

[0040] Through the above embodiments, the purpose of the utility model is fully and effectively achieved. Those skilled in the art can understand that the utility model includes but is not limited to the contents described in the drawings and the above specific embodiments. Although the utility model has been described with respect to the most practical and preferred embodiments currently considered, it should be understood that the utility model is not limited to the disclosed embodiments, and any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A point light source inspection lens device with variable focal length, characterized in that: include: Point light source fixing seat; The point light source fixing seat is connected to a point light source; The point light source fixing seat is connected with the scale rod; Point source differentiation sheet; The point light source differentiation sheet is connected to the point light source sheet pressure ring, and the point light source sheet pressure ring is arranged in conjunction with the point light source differentiation sheet; The fine-tuning cylinder comprises an inner sleeve and an outer sleeve; the point light source fixing seat is arranged in the inner cavity of the fine-tuning cylinder, and the point light source differentiation sheet is fixed on the fine-tuning cylinder through a point light source sheet pressure ring.

2. The point light source inspection lens device with variable focal length according to claim 1, characterized in that: A scale rod fixing seat is sleeved on the scale rod; the scale rod and the scale rod fixing seat are fixed by a connecting piece, and the connecting piece is a nut.

3. The variable focal length point light source inspection lens device according to claim 2, characterized in that: The scale rod is connected with a scale rod sliding cover, and the scale rod sliding cover is arranged between the point light source fixing seat and the scale rod fixing cover.

4. The variable focal length point light source inspection lens device according to claim 3, characterized in that: A fixing cover is connected to the edge of one end of the fine-tuning tube close to the point light source, and the fixing cover is arranged in cooperation with the fine-tuning tube.

5. The point light source inspection lens device with variable focal length according to claim 1, characterized in that: A fine thread is arranged between the inner sleeve and the outer sleeve, and the inner sleeve and the outer sleeve are nested and connected.

6. The variable focal length point light source inspection lens device according to claim 1, characterized in that: The point light source p pressure plate is pressed on the point light source differentiation sheet.

7. The variable focal length point light source inspection lens device according to claim 3, characterized in that: The scale rod sliding cover is nested outside the scale rod; the scale rod sliding cover is fixedly connected to the fine-tuning cylinder.

8. The variable focal length point light source inspection lens device according to claim 4, characterized in that: The fixed cover is connected to the transfer function analyzer interface.

9. A point light source inspection lens device with variable focal length according to claim 4 or 8, characterized in that: The fixed cover is connected with a driving circuit board; the driving circuit board comprises a voltage conversion module, a charging and discharging module, and a constant current driving module.

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