Zoom lens system based on annular conical side mirror

Abstract

The invention relates to the technical field of optical zoom lens application, in particular to a zoom lens system based on an annular conical side mirror, which comprises two brackets, two center frames and two groups of annular lenses, and is characterized in that the annular lenses of the zoom lens system are formed by bending conical surface-shaped lenses; according to the zoom lens system, the continuous change of the focal length is realized by utilizing the change of the curvature of the conical side surface, different from a traditional lens system, the transmission path of light is controlled by accurately adjusting the geometrical shape and the curvature of the conical side surface, a smoother and more continuous zoom effect is realized, and the zoom lens system not only can reduce the complexity of mechanical parts, but also can reduce the cost. And the flexibility and the precision of the zoom system can be improved, and great development potential is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of optical zoom lens application, in particular to a zoom lens system based on an annular cone side mirror. Background Art

[0002] With the rapid development of optical technology, zoom lenses are increasingly used in imaging, optical communications, laser scanning, projection technology and other fields.

[0003] However, traditional optical zoom systems usually rely on mechanical movement of the lens group or change the shape of the lens to adjust the focal length. Although this design has been widely used, it has certain limitations, such as large size, limited adjustment accuracy, and high mechanical complexity. In order to overcome these limitations, zoom systems based on new lens designs have become an important direction of optical research. Summary of the invention

[0004] In response to the problems in the prior art, the present invention provides a zoom lens system based on annular conical side mirrors, which solves the limitations of existing zoom lenses in terms of precision, distortion control and structural complexity. By bending the traditional conical lens into a ring, the original translation mechanism can be simplified through a rotation mechanism, thereby optimizing the design and improving the stability and precision of the system. The zoom lens system based on annular conical side mirrors not only helps to improve the performance of the optical system, but also promotes the innovation of optical design and manufacturing technology, and has high scientific research value and application prospects.

[0005] The technical solution adopted by the present invention to solve its technical problems is: a zoom lens system based on annular conical side mirrors, comprising two brackets, two center brackets and two groups of annular lenses, the two brackets are arranged in parallel, the bottom ends of the two brackets are provided with bases for installation and fixation, a main shaft is horizontally connected between the two parallel brackets, the two center brackets are rotatably matched on the main shaft, the two groups of annular lenses are respectively fixed on the two center brackets, and the two groups of annular lenses are arranged oppositely, the annular lenses of the zoom lens system are formed by bending conical noodle lenses, and the change of the curvature of the cone side surface is used to realize the continuous change of focal length, and the zoom lens system is not Similar to the traditional lens system, it controls the propagation path of light by precisely adjusting the geometric shape and curvature of the cone side to achieve a smoother and continuous zoom effect. This zoom lens system can not only reduce the complexity of mechanical components, but also improve the flexibility and precision of the zoom system. It has great development potential. At the same time, it helps to enrich and expand the research on optical zoom technology. By proposing a new zoom principle, the focus position of light is controlled by changing the geometric curvature. This provides new ideas for the design of optical components and may lead to new breakthroughs in the field of optical zoom. This zoom lens system bends the traditional conical lens. The conical lens is annular and zoom is achieved through the rotation of the center frame and the main shaft. The propagation direction and focusing position of the light are controlled by dynamically adjusting the side curvature of the conical lens, breaking through the limitation of fixed curvature in traditional lens design. This new optical system can achieve high-precision zoom control without increasing the number of lenses, significantly improving the integration and reliability of the optical system. Compared with the traditional zoom lens system, it can not only reduce mechanical moving parts and improve the response speed, but also provide innovative solutions for technological progress in the fields of optical sensors and imaging systems, and has strong technical foresight. In addition, this rotating machine Compared with the translation mechanism, the system is more stable and can effectively reduce the accumulation of mechanical errors. The annular lens is fixed on the center frame and rotated by differential control. This structure makes the movement of the lens more stable during the zoom process, avoiding image blur caused by lens position offset or shaking. By bending the traditional conical lens into a ring, the original translation mechanism can be simplified through the rotation mechanism, thereby optimizing the design and improving the stability and accuracy of the system. The zoom lens system based on the annular conical side mirror not only helps to improve the performance of the optical system, but also promotes the innovation of optical design and manufacturing technology, and has high scientific research value and application prospects.

[0006] Among them, each group of the annular lenses is composed of two semi-annular lenses, and the semi-annular lenses are semi-annular structures after the conical noodle lenses are bent. The annular lenses of the zoom lens system are formed by bending conical noodle lenses. This unique structure enables the light to be more evenly distributed when passing through the lenses, reduces the deflection and scattering of light, and thus effectively reduces distortion. The two groups of annular lenses are arranged in opposite directions and form different total focal lengths through differential control. This design can achieve better optical compensation at different focal lengths and further optimize the imaging quality.

[0007] Preferably, a fixing hoop is provided on the outer side of the two groups of annular lenses, and the fixing hoop constrains the annular lenses on the center frame. By setting the fixing hoop, the annular lenses are fixed to ensure that the annular lenses will not shift or shake during the zoom adjustment process, thereby reducing imaging errors caused by loose lenses.

[0008] Preferably, the zoom lens system further comprises a front panel and a rear panel, the front panel and the rear panel are arranged in parallel, and the two brackets are located between the front panel and the rear panel.

[0009] Preferably, the front panel is provided with an image collection hole and an imaging hole, and the rear panel is provided with a plurality of mounting holes. Reflectors are mounted corresponding to the mounting holes on the rear panel, wherein two reflectors are aligned with the image collection hole and the imaging hole, respectively. The image collection hole and the imaging hole on the front panel are used to receive and output light, respectively, providing a clear path for the transmission of light. The mounting holes on the rear panel are used to mount reflectors, which are aligned with the image collection hole and the imaging hole to ensure that light can accurately enter and leave the system. The parallel arrangement of the front panel and the rear panel, and the precise alignment of the image collection hole and the imaging hole, enable light to be transmitted efficiently, reducing light loss during transmission. The reasonable layout of the reflectors further optimizes the optical path, ensures that light can accurately enter and leave the system, and improves the overall efficiency of the system.

[0010] Preferably, the reflector aligned with the image collection hole can receive the light entering the image collection hole, and the reflector aligned with the imaging hole can reflect the light to enter the imaging hole.

[0011] Preferably, the reflector aligned with the imaging hole receives the image presented by the light, which is reflected in turn by the other reflectors. After reaching the reflector aligned with the imaging hole, the image can be flipped 90 degrees. Through the reflection of the reflector, the light can be flipped 90 degrees after being processed by two groups of annular lenses. This design allows the image to adjust its angle after being processed once and be processed again by the annular lenses, thereby processing the up and down and left and right directions of the image. After reflection and angle adjustment by the reflector, the light can be processed twice by two groups of annular lenses in turn. This double processing method can significantly improve the image restoration and reduce distortion.

[0012] Preferably, both the front panel and the rear panel are vertical disc-shaped structures, a first supporting leg for support is disposed at the bottom of the front panel, and a second supporting leg for support is disposed at the bottom of the rear panel.

[0013] Preferably, the total focal length formula of the two sets of annular lenses is:

[0014] Preferably, the two groups of annular lenses cooperate to correct the difference in magnification at both ends of the image, and the change in magnification is symmetrical about the center.

[0015] Preferably, the two center frames are equipped with differential speed control, and the rotation of the two annular lenses forms a differential speed through the differential speed control. In the presence of the differential speed, the two annular lenses can be combined to form different total focal lengths F.

[0016] Beneficial effects of the present invention:

[0017] (1) In the present invention, the annular lens of the zoom lens system is formed by bending a conical noodle lens, and the change of the curvature of the cone side surface is used to achieve a continuous change of the focal length. Different from the traditional lens system, it controls the propagation path of the light by accurately adjusting the geometric shape and curvature of the cone side surface, thereby achieving a smoother and continuous zoom effect. The zoom lens system can not only reduce the complexity of mechanical components, but also improve the flexibility and precision of the zoom system, and has great development potential. At the same time, it is also helpful to enrich and expand the research on optical zoom technology. By proposing a new zoom principle, the focus position of the light is controlled by changing the geometric curvature, which provides a new idea for the design of optical elements and may lead to new breakthroughs in the field of optical zoom.

[0018] (2) In the present invention, the zoom lens system bends the traditional conical lens into a ring shape, and realizes zooming by the rotation of the center frame and the main shaft. The propagation direction and focusing position of the light are controlled by dynamically adjusting the side curvature of the conical lens, breaking through the limitation of fixed curvature in traditional lens design. This new optical system can achieve high-precision zoom control without increasing the number of lenses, significantly improving the integration and reliability of the optical system. Compared with the traditional zoom lens system, it can not only reduce the number of mechanical moving parts and improve the response speed, but also provide innovative solutions for technological progress in the fields of optical sensors, imaging systems, etc., and has strong technical Forward-looking. In addition, this rotation mechanism is more stable than the translation mechanism and can effectively reduce the accumulation of mechanical errors. The annular lens is fixed on the center frame and rotates through differential control. This structure makes the movement of the lens during zooming more stable, avoiding imaging blur caused by lens position offset or shaking. By bending the traditional conical lens into a ring, the original translation mechanism can be simplified through the rotation mechanism, thereby optimizing the design and improving the stability and accuracy of the system. The zoom lens system based on the annular conical side mirror not only helps to improve the performance of the optical system, but also promotes the innovation of optical design and manufacturing technology, and has high scientific research value and application prospects.

[0019] (3) In the present invention, the annular lens of the zoom lens system is formed by bending a conical noodle lens. This unique structure enables light to be more evenly distributed when passing through the lens, reduces the deflection and scattering of light, and thus effectively reduces distortion. The two groups of annular lenses are arranged oppositely and form different total focal lengths through differential control. This design can achieve better optical compensation at different focal lengths and further optimize the imaging quality.

[0020] (4) In the present invention, the zoom lens system adopts an annular cone side mirror structure and realizes zooming through a rotation mechanism, eliminating the complex translation mechanism and the coordination of multiple lens groups, greatly simplifying the structure of the system. The arrangement of two brackets and the main axis provides stable support for the entire system, and the rotation coordination of the center frame and the annular lens realizes the zooming function. This structural design makes the overall layout of the system more compact, and the volume and weight are significantly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a front view of the overall structure of the present invention.

[0024] Figure 3 for Figure 1A magnified detail of area A.

[0025] Figure 4 It is a schematic diagram of the front panel structure of the present invention.

[0026] Figure 5 It is a schematic diagram of the structure of the annular lens of the present invention.

[0027] Figure 6 The cross-sectional views of the semi-circular lens of the present invention at different focal lengths are shown.

[0028] Figure 7 It is a simulation schematic diagram of the present invention.

[0029] Figure 8 This is a total focal length curve diagram of the present invention.

[0030] Fig. 9 It is a feasibility simulation diagram of the focal length change of the strip cone side mirror of the present invention.

[0031] Fig.10 This is a simulation diagram of the focal length change and distortion of the annular cone side mirror of the present invention.

[0032] Fig.11 Availability mapping for simulating distortion of the present invention.

[0033] Fig.12 This is a functional simulation diagram of the focal length change of the annular lens.

[0034] Fig.13 This is a laser test chart of the capability of the annular lens of the present invention.

[0035] Fig.14 It is a schematic diagram of the structure of the lens assembly of the present invention for gathering light.

[0036] Fig.15 This is an experimental diagram of the light gathering by the lens assembly of the present invention.

[0037] Fig.16 This is a diagram of the double ring group experiment of the present invention.

[0038] In the figure: 1, bracket; 101, base; 2, main axis; 3, center frame; 4, annular lens; 401, semi-annular lens; 5, fixing hoop; 6, front panel; 601, first supporting leg; 602, image collection hole; 603, imaging hole; 7, rear panel; 701, second supporting leg; 702, mounting hole; 8, reflector. DETAILED DESCRIPTION

[0039] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0040] like Figure 1-Figure 16As shown, a zoom lens system based on annular conical side mirrors described in the present invention comprises two brackets 1, two center brackets 3 and two groups of annular lenses 4. The two brackets 1 are arranged in parallel, and the bottom ends of the two brackets 1 are provided with a base 101 for installation and fixation. A main shaft 2 is horizontally connected between the two parallel brackets 1, and the two center brackets 3 are rotatably matched on the main shaft 2. The two groups of annular lenses 4 are respectively fixed on the two center brackets 3, and the two groups of annular lenses 4 are oppositely arranged. When the annular lenses 4 are compressed, specific distortion will be generated, and an annular lens placed oppositely can just correct it. The simulated schematic diagram to obtain a simulated image can explain the principle. The original image is symmetrical on the left and right, but after passing through an annular lens 4, the left and right are asymmetrical, and a central area appears. The distortion of the domain can be corrected by two annular lenses 4, so that the image can be corrected to be bilaterally symmetrical, with small distortion in the central area and usable imaging. The annular lens 4 of the zoom lens system is formed by bending a conical noodle lens, and the change of the curvature of the cone side is used to achieve continuous change of focal length. Different from the traditional lens system, it controls the propagation path of light by accurately adjusting the geometric shape and curvature of the cone side to achieve a smoother and continuous zoom effect. The zoom lens system can not only reduce the complexity of mechanical components, but also improve the flexibility and accuracy of the zoom system, and has great development potential. At the same time, it is also helpful to enrich and expand the research on optical zoom technology, by proposing a new zoom principle, controlling the light by changing the geometric curvature. The focusing position of the light is controlled, which provides a new idea for the design of optical components and may lead to new breakthroughs in the field of optical zoom. The zoom lens system bends the traditional conical lens into a ring, and realizes zooming through the rotation of the center frame 3 and the main shaft 2. The propagation direction and focusing position of the light are controlled by dynamically adjusting the side curvature of the conical lens, breaking through the limitation of fixed curvature in traditional lens design. This new optical system can achieve high-precision zoom control without increasing the number of lenses, significantly improving the integration and reliability of the optical system. Compared with the traditional zoom lens system, it can not only reduce mechanical moving parts and improve response speed, but also provide technical progress in the fields of optical sensors and imaging systems. The invention provides an innovative solution with strong technical foresight. In addition, the rotation mechanism is more stable than the translation mechanism and can effectively reduce the accumulation of mechanical errors. The annular lens 4 is fixed on the center frame 3 and rotated by differential control. This structure makes the movement of the lens more stable during the zooming process, avoiding image blur caused by lens position offset or shaking. By bending the traditional conical lens into a ring, the original translation mechanism can be simplified through the rotation mechanism, thereby optimizing the design and improving the stability and accuracy of the system. The zoom lens system based on the annular conical side mirror not only helps to improve the performance of the optical system, but also promotes the innovation of optical design and manufacturing technology, and has high scientific research value and application prospects.

[0041] Among them, each group of annular lenses 4 is composed of two semi-annular lenses 401, and the semi-annular lenses 401 are semi-annular structures after the conical noodle lenses are bent. The annular lenses 4 of the zoom lens system are formed by bending conical noodle lenses. This unique structure enables the light to be more evenly distributed when passing through the lens, reduces the deflection and scattering of light, and thus effectively reduces distortion. The two groups of annular lenses 4 are oppositely arranged and form different total focal lengths through differential control. This design can achieve better optical compensation at different focal lengths and further optimize the imaging quality.

[0042] In an optional implementation of the present embodiment, a fixing hoop 5 is provided on the outer side of the two groups of annular lenses 4, and the fixing hoop 5 constrains the annular lenses 4 to the center frame 3. By providing the fixing hoop 5, the annular lenses 4 are fixed to ensure that the annular lenses 4 will not be displaced or shaken during the zoom adjustment process, thereby reducing the imaging error caused by the looseness of the lens.

[0043] In an optional implementation of this embodiment, the zoom lens system further includes a front panel 6 and a rear panel 7 , the front panel 6 and the rear panel 7 are arranged in parallel, and the two brackets 1 are located between the front panel 6 and the rear panel 7 .

[0044] In an optional implementation of this embodiment, an image collection hole 602 and an imaging hole 603 are provided on the front panel 6, and a plurality of mounting holes 702 are provided on the rear panel 7. Reflectors 8 are installed corresponding to the mounting holes 702 on the rear panel 7, wherein two reflectors 8 are aligned with the image collection holes 602 and the imaging holes 603, respectively. The image collection holes 602 and the imaging holes 603 on the front panel 6 are used to receive and output light, respectively, and provide a clear path for the transmission of light. The mounting holes 702 on the rear panel 7 are used to install reflectors 8, and these reflectors 8 are aligned with the image collection holes 602 and the imaging holes 603, ensuring that light can accurately enter and leave the system. The parallel arrangement of the front panel 6 and the rear panel 7, and the precise alignment of the image collection holes 602 and the imaging holes 603 enable light to be transmitted efficiently, reducing the loss of light during the transmission process. The reasonable layout of the reflectors 8 further optimizes the optical path, ensures that light can accurately enter and leave the system, and improves the overall efficiency of the system.

[0045] In an optional implementation of this embodiment, the reflector 8 aligned with the image collecting hole 602 can receive the light entering the image collecting hole 602 , and the reflector 8 aligned with the imaging hole 603 reflects the light so that it can enter the imaging hole 603 .

[0046] In an optional implementation of the present embodiment, the reflector 8 aligned with the imaging hole 602 receives the image presented by the light, which is reflected in turn by the other reflectors 8. After reaching the reflector 8 aligned with the imaging hole 603, the image can be flipped 90 degrees. Through the reflection effect of the reflector 8, the light can be flipped 90 degrees after being processed by the two groups of annular lenses 4. This design allows the image to adjust its angle after being processed once, and be processed again by the annular lenses 4, so as to process the up and down and left and right directions of the image. After reflection and angle adjustment by the reflector 8, the light can be processed twice by the two groups of annular lenses 4 in turn. This double processing method can significantly improve the image restoration degree and reduce distortion.

[0047] In an optional implementation of this embodiment, the front panel 6 and the rear panel 7 are both vertical disc-shaped structures, and a first supporting leg 601 for support is provided at the bottom of the front panel 6, and a second supporting leg 701 for support is provided at the bottom of the rear panel 7.

[0048] In an optional implementation manner of this embodiment, the total focal length formula of the two groups of annular lenses 4 is:

[0049]

[0050] In an optional implementation of this embodiment, two groups of annular lenses 4 cooperate to correct the difference in magnification at both ends of the image, and the change in magnification is symmetrical about the center.

[0051] In an optional implementation of the present embodiment, the two center frames 3 are equipped with differential speed control, and the rotation of the two annular lenses 4 forms a differential speed through the differential speed control. In the presence of the differential speed, the two annular lenses 4 can be combined to form different total focal lengths F. In the total focal length curve diagram, the straight line is the change in the focal length (f1 f2) of the symmetrically placed conical lenses, and the curve is the change in the total focal length (F) generated as the conical mirror moves. Each curve represents the change in F distributed symmetrically about the center, and multiple curves represent curves at different f1 f2 positions.

[0052] Experimental situation

[0053] 1. Conduct a feasibility simulation experiment on the focal length change of the strip cone side mirror. The equal length line segments formed different line segment lengths after passing through the tested sample, and the result was successful;

[0054] 2. Carry out the simulation experiment of focal length change and distortion of annular cone side mirror, and form circular spots of different heights after the large circular spot passes through the tested sample, and the result is successful;

[0055] 3. Test the usability of the simulated distortion to test the overall and central area distortion usability. Due to the structure of the image itself, the structural similarity SSIM fluctuates and rises with the change of the cropping ratio, proving that the central image quality is better. All structural similarities are higher than 69%, indicating that the overall distortion characteristics are not serious.

[0056] 4. Perform a functional simulation of the focal length change of the annular lens. The flatter the central section of the blue line is, the smaller the focal length change on both sides is, and the more uniform the overall focal length is, the better. The vertical distribution of the blue line represents the change of the total focal length F when the angle difference changes uniformly. The sparser and more average, the better.

[0057] 5. Testing the ability of the annular lens 4 under laser light shows that the annular lens 4 has a high ability to resist laser damage;

[0058] 6. Conduct an experiment on focusing light with a lens group. The experimental results show that the image spot is clear, there is no distortion, and the light intensity is evenly distributed;

[0059] 7. Conduct a double-ring combination experiment to form different magnifications by combining thin segments with thin segments, middle segments with middle segments, and thick segments with thick segments of the annular lens, and the surface has different total focal lengths F.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A zoom lens system based on an annular conical side mirror, comprising two brackets (1), two center frames (3) and two groups of annular lenses (4), characterized in that: The two brackets (1) are arranged in parallel, and the bottom ends of the two brackets (1) are each provided with a base (101) for installation and fixing. A main shaft (2) is horizontally connected between the two brackets (1), and the two center frames (3) are rotatably matched on the main shaft (2). The two groups of annular lenses (4) are respectively fixed on the two center frames (3), and the two groups of annular lenses (4) are arranged oppositely. Each group of the annular lenses (4) is composed of two semi-annular lenses (401), and the semi-annular lenses (401) are semi-annular structures formed by bending conical noodle-shaped lenses.

2. A zoom lens system based on annular conical side mirror according to claim 1, characterized in that: The outer sides of the two groups of annular lenses (4) are both provided with fixing hoops (5), and the fixing hoops (5) constrain the annular lenses (4) on the central frame (3).

3. A zoom lens system based on annular cone side mirror according to claim 1, characterized in that: The zoom lens system also comprises a front panel (6) and a rear panel (7), wherein the front panel (6) and the rear panel (7) are arranged in parallel, and the two brackets (1) are located between the front panel (6) and the rear panel (7).

4. The zoom lens system based on annular cone side mirror according to claim 3, characterized in that: The front panel (6) is provided with an image collection hole (602) and an imaging hole (603), and the rear panel (7) is provided with a plurality of mounting holes (702). Reflectors (8) are mounted corresponding to the mounting holes (702) on the rear panel (7), wherein two reflectors (8) are aligned with the image collection hole (602) and the imaging hole (603), respectively.

5. The zoom lens system based on annular cone side mirror according to claim 4, characterized in that: The reflector (8) aligned with the image collecting hole (602) can receive light entering from the image collecting hole (602), and the reflector (8) aligned with the imaging hole (603) can reflect light so that it can enter the imaging hole (603).

6. A zoom lens system based on annular cone side mirror according to claim 5, characterized in that: The reflector (8) aligned with the image collection hole (602) receives the image presented by the light, which is reflected in sequence by the other reflectors (8) and reaches the reflector (8) aligned with the imaging hole (603). The image can be flipped 90 degrees.

7. The zoom lens system based on annular cone side mirror according to claim 3, characterized in that: The front panel (6) and the rear panel (7) are both vertical disc-shaped structures. A first supporting leg (601) for support is arranged at the bottom of the front panel (6), and a second supporting leg (701) for support is arranged at the bottom of the rear panel (7).

8. The zoom lens system based on annular cone side mirror according to claim 1, characterized in that: The total focal length formula of the two sets of annular lenses (4) is:

9. The zoom lens system based on annular cone side mirror according to claim 8, characterized in that: The two groups of annular lenses (4) cooperate to correct the difference in magnification at both ends of the image, and the change in magnification is symmetrical about the center.

10. The zoom lens system based on annular cone side mirror according to claim 9, characterized in that: The two center frames (3) are equipped with differential speed control, and the rotation of the two annular lenses (4) forms a differential speed through the differential speed control. In the presence of the differential speed, the two annular lenses (4) can be combined to form different total focal lengths F.

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