A photographing and recording integrated optical system

Abstract

The utility model discloses a kind of optical systems of recording and photographing integration, it is related to optical technology field, specifically including the first optical assembly being arranged along the first optical axis direction;Second optical assembly, prism are arranged along the second optical axis direction, prism includes light splitting surface, first image surface, second image surface, light splitting surface is used to divide incident light into two parts, and respectively through first image surface to second optical assembly to facilitate observation, through second image surface to first optical assembly to facilitate recording and photographing;Light splitting surface, second optical axis, first optical axis meet in intersection A, intersection A deviates from the center point O of prism and is close to first image surface setting.The above-mentioned optical system, by the setting of light splitting surface bias, can increase the optical path of incident light in prism, reduce system optical total length, reduce system volume.

Description

Technical Field

[0001] This utility model relates to the field of optical technology, and more specifically, to an optical system that integrates shooting and recording. Background Technology

[0002] With the gradual development of head-mounted low-light night vision devices, lightweight, low-cost, high-imaging-quality, and versatile low-light night vision goggles are becoming increasingly popular in the market.

[0003] In related technologies, in order to simultaneously meet the user's needs for observing the target and taking pictures, the incident light is divided into a visual part and a recording part by a beam splitter. However, in this way, the overall size of the optical system is relatively large.

[0004] In summary, how to reduce the overall size of an optical system that can meet the needs of recording and observation is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide an integrated optical system for shooting and recording, which can meet the needs of shooting and visual observation, reduce the overall optical length of the system, reduce the size of the entire optical system, and make the overall structure of the optical system compact.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An optical system for both capturing and recording, comprising:

[0008] A first optical component arranged along the first optical axis;

[0009] A second optical component and a prism are arranged along the second optical axis. The prism includes a beam-splitting surface, a first image surface, and a second image surface. The beam-splitting surface is used to split the incident light into two parts, which are respectively sent to the second optical component via the first image surface for observation and to the first optical component via the second image surface for recording.

[0010] The beam-splitting surface, the second optical axis, and the first optical axis intersect at intersection point A, which is offset from the center point O of the prism and is located close to the first image plane.

[0011] Preferably, the prism includes a first prism and a second prism connected thereto, both the first prism and the second prism are trapezoidal prisms, and the joint surface of the first prism and the second prism forms the beam-splitting surface.

[0012] Preferably, the second optical component includes a first lens, which is an aspherical biconvex lens.

[0013] Preferably, the first lens includes a first convex surface disposed close to the prism and a second convex surface disposed away from the prism and relatively close to the first image plane, wherein the radius of curvature of the second convex surface is greater than the radius of curvature of the first convex surface.

[0014] Preferably, the prism further includes a second lens for converging the incident light rays, wherein the first lens and the second lens are disposed on both sides of the prism along the second optical axis; the second lens is a plano-convex lens, and the second lens includes a first plane close to the prism and a third convex surface away from the prism.

[0015] Preferably, it further includes a third lens disposed along the second optical axis on the side of the second lens away from the prism, the third lens including a plano-concave lens and a plano-convex lens, the concave surface of the plano-concave lens and the convex surface of the plano-convex lens being bonded together to form an adhesive surface;

[0016] The second plane of the plano-concave lens is positioned close to the second lens, and the third plane of the plano-convex lens is positioned close to the image intensifier.

[0017] Preferably, the plano-concave lens has a first side surface located on both sides of the second optical axis, and the plano-convex lens has a second side surface located on both sides of the second optical axis. The first side surface and the second side surface located on the same side of the second optical axis are connected to form a plurality of steps for avoiding the image intensifier.

[0018] Preferably, the first lens is a glass lens, the second lens is a plastic aspherical lens, the plano-concave lens is a flint glass lens, and the plano-convex lens is a crown glass lens.

[0019] Preferably, the first optical component includes a fifth lens and a sixth lens arranged along the first optical axis. The fifth lens is a biconvex lens, and the sixth lens is a meniscus lens. The side of the sixth lens closest to the fifth lens is a fourth convex surface, and the side of the sixth lens furthest from the fifth lens is a concave surface. The concave surface is arranged close to the shooting window.

[0020] Preferably, the radii of curvature of the fifth convex surface and the sixth convex surface on both sides of the fifth lens are equal.

[0021] The optical system for integrated shooting and recording provided by this utility model includes a first optical component arranged along a first optical axis, a second optical component arranged along a second optical axis, and a prism. The prism has a beam-splitting surface, which can divide the incident light into a visual part that passes through the first optical component via the second image plane and a shooting part that passes through the second optical component via the first image plane, thereby meeting the user's needs for visual observation and shooting. Furthermore, the beam-splitting surface, the first optical axis, and the second optical axis form an intersection point. The intersection point is offset from the center point of the prism and is set close to the first image plane. This method of setting the intersection point off-center increases the optical path of the incident light within the prism, thereby reducing the distance between the first optical component and the prism, and the distance between the second optical component and the prism, reducing the overall optical length of the system, and thus reducing the size of the entire optical system. This makes the overall structure of the optical system compact and more valuable for engineering practice. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of the optical system for integrated shooting and recording provided by this utility model;

[0024] Figure 2 The surface serial number diagram shows the integrated imaging and recording optical system provided by this utility model;

[0025] Figure 3 A modulation transfer function curve of the human eye's visual optical path provided by this utility model;

[0026] Figure 4 The modulation transfer function curve of the imaging optical path provided by this utility model;

[0027] Figure 5 The distortion curve of the human eye's visual optical path provided by this utility model;

[0028] Figure 6 The distortion curve of the imaging optical path provided by this utility model.

[0029] Figures 1-6 In the accompanying drawings, the reference numerals include:

[0030] 101-First optical component; 102-First lens; 103-Second lens; 104-Third lens; 105-Prism; 1041-Planc-concave lens; 1042-Planc-convex lens; 1051-First prism; 1052-Second prism; 1011-Fifth lens; 1012-Sixth lens; 201-Exit pupil position; 202-Picture window; 203-Anode surface of the image tube;

[0031] s1 - First convex surface; s2 - Second convex surface; s3 - First image plane; s4 - Beam splitting surface; s5 - Object plane; s6 - First plane; s7 - Third convex surface; s8 - Second plane; s9 - Cemented surface; s10 - Third plane; s11 - Concave surface; s12 - Fourth convex surface; s13 - Fifth convex surface; s14 - Sixth convex surface; s15 - Second image plane. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] The core of this utility model is to provide an integrated optical system for both shooting and recording, which can meet the needs of shooting and visual observation, reduce the overall optical length of the system, reduce the size of the entire optical system, and make the overall structure of the optical system compact.

[0034] The optical system for integrated shooting and recording provided by this utility model specifically includes a first optical component 101, a second optical component, and a prism 105. Please refer to [reference needed]. Figure 1 .

[0035] The first optical component 101 is arranged along the first optical axis, and the second optical component and prism 105 are arranged along the second optical axis. The first optical axis is as follows: Figure 1 As shown by the y-axis direction, the second optical axis direction is as follows. Figure 1 The x-axis direction is shown.

[0036] The prism 105 includes a beam-splitting surface s4, a first image surface s3, and a second image surface s15. The two image surfaces are relative to the object surface s5. Specifically, the incident light enters the prism 105 through the object surface s5 and is split into two parts according to a certain beam splitting ratio after passing through the beam-splitting surface s4. One part reaches the first image surface s3 and exits through the second optical component for human observation; the other part reaches the second image surface s15 and exits through the first optical component 101 for the imaging component to capture images.

[0037] The beam splitter s4, the second optical axis, and the first optical axis intersect at an intersection point A, as shown below. Figure 1 As shown, intersection point A is offset from the center point O of prism 105, and this intersection point A is set closer to the first image plane s3 and farther from the object plane s5. Figure 1 In terms of orientation, the intersection point A is set to the left relative to the center point O. This off-center setting effectively increases the travel distance of the incident light rays after entering the prism 105, thereby reducing the overall optical length of the system, shrinking the overall size of the system, and making the system structure compact.

[0038] It should be further explained that the increased travel distance of the incident light entering the prism 105 refers to the increase in the sum of the travel distance of the incident light after passing through the object surface s5 to the beam splitting surface s4 and the travel distance between the beam splitting surface s4 and the second image surface s15. Due to this increase in travel distance, the first optical component 101 and the second optical component can be positioned close to the prism 105. The distance between the exit pupil position 201 corresponding to human eye observation and the anode surface 203 of the image tube where the incident light enters the corresponding image intensifier is also reduced. This distance is the total optical length of the system, thereby achieving the effect of reducing the overall system volume.

[0039] Specifically, reducing the overall system size involves two directions: the first optical axis and the second optical axis. This allows for a more compact structure of the optical components on the first optical axis and the optical components on the second optical axis.

[0040] In this embodiment, the first and second optical axes can be set perpendicularly. After the incident light passes through the beam splitter s4, part of it enters the exit pupil position 201 as parallel light, and the other part enters the shooting window position 202 as parallel light. In this configuration, the user can flexibly change the camera module according to their needs without adjustment, improving convenience and flexibility. In addition, the perpendicular setting of the first and second optical axes ensures that shooting and visual observation do not interfere with each other, avoiding interference with the user's field of view and avoiding inconvenience when wearing the camera.

[0041] Based on the above embodiments, such as Figure 1 As shown, prism 105 includes a first prism 1051 and a second prism 1052 connected thereto. Both the first prism 1051 and the second prism 1052 are trapezoidal prisms.

[0042] Specifically, the connection between the first prism 1051 and the second prism 1052 is an adhesive connection, and the bonding surface of the first prism 1051 and the second prism 1052 can form a beam-splitting surface s4.

[0043] The first prism 1051 and the second prism 1052 are both made of crown glass and are circular thick parallel plates. Both the first prism 1051 and the second prism 1052 have ground and polished optical surfaces.

[0044] The first prism 1051 and the second prism 1052 are both trapezoidal prisms. Specifically, they are set as trapezoidal prisms to meet the requirement of biasing the beam splitting surface. Specifically, prism 105 is formed by piecing together two trapezoidal prisms.

[0045] like Figure 1 As shown, in a preferred embodiment, both the first prism 1051 and the second prism 1052 are right-angled trapezoids, and the inclined surfaces of the two trapezoids are attached and connected, which are the corresponding beam-splitting surfaces s4.

[0046] The incident light passes through the object surface s5 and enters through the second prism 1052 and passes through the beam splitting surface s4. Part of it is reflected and enters the first optical component 101 through the second image surface s15 of the second prism 1052, so that it can be captured by the shooting window 202 to meet the needs of shooting. The other part is transmitted and enters the second optical component through the first image surface s3 of the first prism 1051 to meet the needs of human eye observation.

[0047] Based on any of the above embodiments, please refer to Figure 1 The second optical component includes a first lens 102, which is an aspherical biconvex lens.

[0048] Specifically, the first lens 102 is made of crown glass, which has good mechanical and corrosion-resistant properties.

[0049] By setting the first lens 102 as a biconvex lens, the incident light rays can be converged and sent to the exit pupil position 201 for observation. By designing the first lens 102 as an aspherical surface, it is possible to correct aberrations such as coma and astigmatism that increase with the increase of the field of view of off-axis rays, ensuring the quality of imaging, reducing the total optical length, and making the system structure more compact.

[0050] Based on any of the above embodiments, please refer to Figure 1 and Figure 2 The first lens 102 includes a first convex surface s1 disposed close to the prism 105 and a second convex surface s2 disposed away from the prism 105 and relatively close to the first image plane s3.

[0051] The radius of curvature of the second convex surface s2 is greater than that of the first convex surface s1, meaning that the curvature of the first convex surface s1 is greater than that of the second convex surface s2. With this arrangement, the light rays entering the first lens 102 through the beam splitter s4 are converged to different degrees before being sent to the exit pupil position 201, thereby improving the image quality.

[0052] Based on any of the above embodiments, please refer to Figure 1 and Figure 2 It also includes a second lens 103 for converging incident light rays. The second lens 103 is a plano-convex lens and includes a first plane s6 close to the prism 105 and a third convex surface s7 away from the prism 105.

[0053] like Figure 1 As shown, the first lens 102 and the second lens 103 are disposed on both sides of the prism 105 along the second optical axis, and specifically, the first lens 102 is located on the side corresponding to the first image plane s3, while the second lens 103 is located on the side corresponding to the object plane s5.

[0054] The second lens 103 is configured as a plano-convex lens so that it can converge the off-axis field beam, thereby reducing the radial dimension of the system. Here, the radial dimension refers to the dimension along the first optical axis, so as to reduce the volume of the entire optical system and make the entire system structure more compact.

[0055] like Figure 2 As shown, the incident light rays can be converged through the third convex surface s7 and then enter the prism 105 through the first plane s6. After entering the prism 105, the converged light rays are divided into the visual part and the photographed part by the beam splitting surface s4 according to a certain beam splitting ratio.

[0056] Based on any of the above embodiments, please refer to Figure 1 The optical system also includes a third lens 104 disposed along the second optical axis on the side of the second lens 103 away from the prism 105. The incident light rays can be converged by the third lens 104 and the second lens 103 and then divided into a visual part and a photographic part by the beam splitting surface s4 of the prism 105 according to a certain beam splitting ratio.

[0057] The third lens 104 includes a plano-concave lens 1041 and a plano-convex lens 1042. The concave surface of the plano-concave lens 1041 and the convex surface of the plano-convex lens 1042 are bonded together to form a cemented surface s9. The second plane s8 of the plano-concave lens 1041 is arranged parallel to the third plane s10 of the plano-convex lens 1042.

[0058] The second plane s8 of the plano-concave lens 1041 is positioned close to the second lens 103, and the third plane s10 of the plano-convex lens 1042 is positioned close to the image intensifier.

[0059] The image intensifier is a component that can magnify incident light, namely, the plano-convex lens 1042 is positioned close to the target object.

[0060] By combining the plano-concave lens 1041 and the plano-convex lens 1042, the chromatic aberration of the optical system can be corrected, making the chromatic aberration between the human eye's visual light path and the shooting light path so low that it is difficult for the human eye and shooting equipment to detect.

[0061] Based on any of the above embodiments, please refer to Figure 1 The plano-concave lens 1041 has first side surfaces located on both sides of the second optical axis, and the plano-convex lens 1042 has second side surfaces located on both sides of the second optical axis. The first and second side surfaces located on the same side of the second optical axis are connected to form a plurality of steps for avoiding the image intensifier. It should be noted here that the plurality of steps refers to a plurality of steps located on both sides of the second optical axis direction, formed by the connection of the first side surface and its corresponding second side surface.

[0062] The step formed by the connection of the first and second sides can prevent interference with the image intensifier's tube during structural design. Specifically, it can form a single step or multiple steps, depending on the actual form of the image intensifier's tube.

[0063] In one embodiment, the first side of the plano-concave lens 1041 has a stepped portion and can be connected to the second side of the plano-convex lens 1042 to form a step.

[0064] In another embodiment, the second side of the plano-convex lens 1042 has a stepped portion and can be connected to the first side of the plano-concave lens 1041 to form a step.

[0065] In another embodiment, the first side surface of the plano-concave lens 1041 and the second side surface of the plano-convex lens 1042 both have stepped portions and can be connected to form a step.

[0066] Based on any of the above embodiments, the first lens 102 is a glass lens to ensure good mechanical properties and corrosion resistance; the second lens 103 is a plastic aspherical lens, specifically made of cyclic olefin copolymer, which can reduce the weight of the system; the plano-concave lens 1041 is a flint glass lens, and the plano-convex lens 1042 is a crown glass lens to ensure reliable correction of system chromatic aberration, so that the chromatic aberration between the human eye's visual light path and the shooting light path is so low that it is difficult for the human eye and shooting equipment to perceive.

[0067] Based on any of the above embodiments, please refer to Figure 1 The first optical component 101 includes a fifth lens 1011 and a sixth lens 1012 arranged along the first optical axis. The fifth lens 1011 is a biconvex lens, which can converge light to ensure the imaging effect of the shooting optical path.

[0068] The sixth lens 1012 is a meniscus lens. The side of the sixth lens 1012 closest to the fifth lens 1011 is a fourth convex surface s12, and the side of the sixth lens 1012 furthest from the fifth lens 1011 is a concave surface s11. The concave surface s11 is positioned close to the imaging window 202. The meniscus shape of the sixth lens 1012 helps to reduce the off-axis field of view beam and further correct participating aberrations, thereby improving image quality.

[0069] In this embodiment, the shooting window 202 is the light entrance of the shooting device. Specifically, the light that can pass parallel through the shooting window 202 through the beam splitting surface s4 enters through the shooting window 202 to obtain images / videos.

[0070] In one embodiment, the fifth lens 1011 is a flint glass lens and the sixth lens 1012 is a crown glass lens.

[0071] Based on any of the above embodiments, please refer to Figure 1 The radii of curvature of the fifth convex surface s13 and the sixth convex surface s14 on both sides of the fifth lens 1011 are equal. Here, "both sides" specifically refers to both sides along the first optical axis. By setting the radii of curvature of the fifth convex surface s13 and the sixth convex surface s14 to be equal, error prevention is achieved, processing and assembly are facilitated, and the assembly error rate is reduced.

[0072] Through the above structural design, the optical system effectively resolves the conflict between video recording and visual observation. It meets the recording requirements without obstructing the field of view or reducing the exit pupil distance. Furthermore, the lens materials are readily available, reducing manufacturing costs. The entire system is compact and convenient, offering excellent image quality and significant engineering practical value. With the above structural design, the optical system provided by this invention possesses the following optical performance parameters: a focal length of 27mm, an exit pupil diameter greater than 14mm for the human eye's visual path, an exit pupil diameter greater than 3mm for the recording path, a full field of view of 40°, and an exit pupil distance greater than 25mm for the human eye's visual path.

[0073] like Figure 3 and Figure 4 In the graph, the horizontal axis represents spatial frequency, and the vertical axis represents contrast. F1:T Diff. Limit and F1:RDiff. Limit represent the diffusion limits under transmission and reflection conditions, respectively. RIH is the half-image height, and F1(RIH)-F7(RIH) correspond to the MTF (Modulation Transfer Function) curves at different half-image heights.

[0074] Among them, such as Figure 3The solid and dashed lines represent the meridional and sagittal components of the MTF under different fields of view. The solid lines represent the meridional contrast component, which is perpendicular to the second optical axis; the dashed lines represent the sagittal contrast component, which is along the second optical axis. For example... Figure 3 The two curves are relatively close and high, indicating that the optical path has high resolution and contrast, which means that the imaging quality of the optical path seen by the human eye is high.

[0075] like Figure 4 As shown, the solid and dashed lines represent the meridional and sagittal components of the MTF under different fields of view. The solid line represents the contrast component in the meridional direction, which is perpendicular to the first optical axis; the dashed line represents the contrast component in the sagittal direction, which is along the first optical axis. Curves that are close together and relatively high indicate that the corresponding shooting optical path has high resolution and contrast, resulting in high image quality.

[0076] according to Figure 5 It is known that the optical distortion of the human eye's visual path is approximately zero. Figure 6 It is known that the optical distortion of the shooting optical path is less than 2.5%, and the magnification chromatic aberration of the human eye viewing optical path and the video recording optical path are both less than 3 arcminutes, ensuring that users can obtain clear and accurate images when visually observing and recording.

[0077] The system is 36mm long and weighs less than 40g. The distance from the first convex surface s1 of the first lens 102 to the anode surface 203 of the image tube is the total optical length of the system, which is 44mm at the zero-diopter position. The diameter of the system's maximum radial envelope circle is less than 30mm, making it easier to assemble in head-mounted low-light night vision devices and improving the device's portability and user comfort. The zero-diopter position here is based on the optical system's ability to adjust diopter. Specifically, when adjusting from zero diopter to negative diopter, the entire system moves closer to the anode surface 203 of the image tube; when adjusting from zero diopter to positive diopter, the entire system moves away from the anode surface 203 of the image tube. The adjustable range is from -6 diopter to +2 diopter.

[0078] The distance between the center of the optical axis of the human eye's visual optical path and the anode surface 203 of the image tube is 32.7 mm. This allows the integrated imaging and recording optical system to be unrestricted by structural position and to cooperate with mechanical interfaces in image intensifiers where the image tube is installed relatively deep, without structural interference, ensuring reliable installation.

[0079] The distance from the third plane s10 of the plano-convex lens 1042 to the anode surface 203 of the image tube is the back intercept of the system, which is 8.1 mm when the system is at zero diopter. During diopter adjustment, the back intercept changes by 0.73 mm for each diopter adjustment.

[0080] Furthermore, the specific optical radius, center thickness, material refractive index, and aspheric coefficient parameters of this optical system are described in Tables 1 and 2 below:

[0081] Table 1

[0082]

[0083] Table 2

[0084]

[0085] In Table 1, the surface with a radius of curvature of infinity corresponds to a plane.

[0086] In Table 2, K represents the conic coefficient, and A~D represent the aspheric coefficients. The equation for the aspheric surface is:

[0087] ;

[0088] Where C0 = 1 / R0, C0 is the vertex curvature, R0 is the vertex curvature radius, Z is the sag, and Y is the radius height.

[0089] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0090] The above provides a detailed description of the integrated imaging and recording optical system provided by this utility model. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An optical system integrating shooting and recording, characterized in that, include: A first optical component (101) is arranged along the first optical axis. A second optical component and a prism (105) are arranged along the second optical axis. The prism (105) includes a beam splitting surface (s4), a first image surface (s3), and a second image surface (s15). The beam splitting surface (s4) is used to split the incident light into two parts, which are respectively sent to the second optical component via the first image surface (s3) for observation and to the first optical component (101) via the second image surface (s15) for recording. The beam splitting surface (s4), the second optical axis, and the first optical axis intersect at intersection point A. Intersection point A is offset from the center point O of the prism (105) and is located close to the first image plane (s3).

2. The optical system for integrated shooting and recording according to claim 1, characterized in that, The prism (105) includes a first prism (1051) and a second prism (1052) connected thereto. Both the first prism (1051) and the second prism (1052) are trapezoidal prisms, and the joint surface of the first prism (1051) and the second prism (1052) forms the beam splitting surface (s4).

3. The optical system for integrated shooting and recording according to claim 1, characterized in that, The second optical component includes a first lens (102), which is an aspherical biconvex lens.

4. The optical system for integrated shooting and recording according to claim 3, characterized in that, The first lens (102) includes a first convex surface (s1) disposed close to the prism (105) and a second convex surface (s2) disposed away from the prism (105) and relatively close to the first image plane (s3), wherein the radius of curvature of the second convex surface (s2) is greater than the radius of curvature of the first convex surface (s1).

5. The optical system for integrated shooting and recording according to claim 4, characterized in that, It also includes a second lens (103) for converging the incident light rays. The first lens (102) and the second lens (103) are disposed on both sides of the prism (105) along the second optical axis. The second lens (103) is a plano-convex lens. The second lens (103) includes a first plane (s6) close to the prism (105) and a third convex surface (s7) away from the prism (105).

6. The optical system for integrated shooting and recording according to claim 5, characterized in that, It also includes a third lens (104) disposed along the second optical axis on the side of the second lens (103) away from the prism (105). The third lens (104) includes a plano-concave lens (1041) and a plano-convex lens (1042). The concave surface of the plano-concave lens (1041) and the convex surface of the plano-convex lens (1042) are bonded together to form a cemented surface (s9). The second plane (s8) of the plano-concave lens (1041) is disposed near the second lens (103), and the third plane (s10) of the plano-convex lens (1042) is disposed near the image intensifier.

7. The optical system for integrated shooting and recording according to claim 6, characterized in that, The plano-concave lens (1041) has a first side surface located on both sides of the second optical axis, and the plano-convex lens (1042) has a second side surface located on both sides of the second optical axis. The first side surface and the second side surface located on the same side of the second optical axis are connected to form a plurality of steps for avoiding the image intensifier.

8. The optical system for integrated shooting and recording according to claim 7, characterized in that, The first lens (102) is a glass lens, the second lens (103) is a plastic aspherical lens, the plano-concave lens (1041) is a flint glass lens, and the plano-convex lens (1042) is a crown glass lens.

9. The optical system for integrated recording and imaging according to any one of claims 1 to 8, characterized in that, The first optical component (101) includes a fifth lens (1011) and a sixth lens (1012) arranged along the first optical axis. The fifth lens (1011) is a biconvex lens, and the sixth lens (1012) is a meniscus lens. The side of the sixth lens (1012) closest to the fifth lens (1011) is a fourth convex surface (s12), and the side of the sixth lens (1012) away from the fifth lens (1011) is a concave surface (s11). The concave surface (s11) is arranged close to the shooting window (202).

10. The optical system for integrated recording and imaging according to claim 9, characterized in that, The radii of curvature of the fifth convex surface (s13) and the sixth convex surface (s14) on both sides of the fifth lens (1011) are equal.

Images